Corcept Therapeutics Inc (CORT) SEC Annual Report (10-K) for 2017

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

For the fiscal year ended December 31, 2017

or

For the transition period from          to 

Commission File Number: 000-50679

CORCEPT THERAPEUTICS INCORPORATED

(Exact Name of Corporation as Specified in Its Charter)

149 Commonwealth Drive

Menlo Park, CA 94025

(Address of principal executive offices)   (zip code)

(650) 327-3270

(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12 (b) of the Act: 

Securities registered pursuant to Section 12 (g) of the Act: 

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.   Yes  ☐    No  ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 (d) of the Act.   Yes  ☐    No  ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.   Yes  ☒   No  ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).   Yes  ☒   No  ☐

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the Registrant's knowledge, in definitive proxy or information statements incorporated by reference to Part III of this Form 10-K or any amendment to this Form 10‑K.     ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.   ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

The aggregate market value of voting and non-voting common equity held by non-affiliates of the Registrant was $1,147,542,935 as of June 30, 2017 based upon the closing price on the NASDAQ Capital Market reported for such date. This calculation does not reflect a determination that certain persons are affiliates of the Registrant for any other purpose.

On February 23, 2018 there were 114,830,345 shares of common stock outstanding at a par value of $0.001 per share. 

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Registrant's definitive proxy statement for its 2018 Annual Meeting of Stockholders are incorporated by reference in Items 10, 11, 12, 13 and 14 of Part III. 

TABLE OF CONTENTS

Form 10-K

For the year ended December 31, 2017

PAR T I

This Annual Report on Form 10-K ("Form 10-K") contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended ("Exchange Act"), and Section 27A of the Securities Act of 1933, as amended ("Securities Act"). All statements contained in this Form 10-K, other than statements of historical fact, are forward-looking statements. When used in this report, the words "believe," "anticipate," "intend," "plan," "estimate," "expect," "may," "will," "should, "would," "could," "seek" and similar expressions are forward-looking statements based on management's current expectations. The absence of these words does not mean that a statement is not forward-looking. Forward-looking statements include, but are not limited to, statements about:

Forward-looking statements involve risks and uncertainties and are not guarantees of future performance. Actual events or results may differ materially for many reasons. For a more detailed discussion of the risks and uncertainties that may affect the accuracy of our forward-looking statements, see the "Risk Factors," "Overview" and "Liquidity and Capital Resources" sections of the "Management's Discussion and Analysis of Financial Condition and Results of Operations" sections of this Form 10-K. You should also carefully consider the other reports and documents we file with the Securities and Exchange Commission ("SEC").

Forward-looking statements in this Form 10-K reflect our view only as of the date of this report. Except as required by law, we undertake no obligation to update forward-looking statements.

Unless stated otherwise, all references in this document to "we," "us," "our," "Corcept," the "Company," "our company" and similar words and phrases refer to Corcept Therapeutics Incorporated.

ITEM 1.  BUSINESS

Overview

We are engaged in the discovery, development and commercialization of drugs that treat severe metabolic, oncologic and psychiatric disorders by modulating the effects of the hormone cortisol. Elevated levels and abnormal release patterns of cortisol are implicated in a broad range of diseases. Since our founding in 1998, we have developed mifepristone, a compound that modulates the effects of cortisol by acting as a competitive antagonist at the glucocorticoid receptor ("GR"). We have discovered three structurally distinct series of proprietary, selective cortisol modulators, all of which share mifepristone's affinity for GR but, unlike mifepristone, do not bind to the progesterone receptor ("PR") and so do not cause effects associated with antagonism of progesterone activity. Pre-clinical and clinical development of compounds from these series are in progress .

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In 2012, the United States Food and Drug Administration ("FDA") approved Korlym ®  (mifepristone) 300 mg tablets as a once-daily oral medica tion for the treatment of hyperglycemia secondary to hypercortisolism in adult patients with endogenous Cushing's syndrome who have type 2 diabetes mellitus or glucose intolerance and have failed surgery or are not candidates for surgery.  We first made Ko rlym available to patients commercially in April 2012.

We are conducting clinical trials of three compounds from our portfolio of proprietary selective cortisol modulators, including:  (i) a Phase 2 trial of relacorilant (the recently-approved generic name for CORT125134) to treat patients with Cushing's syndrome; (ii) a Phase 1/2 trial of relacorilant combined with Celgene Corporation's drug Abraxane ® (nab-paclitaxel) to treat patients with a variety of solid tumors ; (iii) a Phase 1/2 trial of CORT125281 combined with Pfizer Inc.'s androgen receptor antagonist Xtandi ® (enzalutamide) to treat patients with castration-resistant prostate cancer ("CRPC"); and (iv) a Phase 1 trial in healthy subjects to assess the safety and tolerability of CORT118335, which we plan to develop for the treatment of non-alcoholic steatotic hepatitis ("NASH") and antipsychotic-induced weight gain.

The Role of Cortisol in Disease

Cortisol is a steroid hormone that plays a significant role in the way the body reacts to stressful conditions. It influences metabolism and the immune system and contributes to emotional stability. In healthy people, cortisol levels follow a diurnal rhythm that is essential to health, peaking upon awakening and decreasing during the day.  Cortisol is essential for survival. Insufficient cortisol activity may lead to dehydration, hypotension, shock, fatigue and hypoglycemia. Excessive cortisol activity – known as hypercortisolism – may lead to a suppressed immune response, impaired glucose tolerance, diabetes, obesity, fatty liver disease, depressed mood, psychosis, wasting of the arms and legs, edema, fatigue, hypertension and other problems. Pre-clinical and clinical data suggest that cortisol may reduce a patient's immune response to oncogenesis, shield certain cancer cells from the apoptotic effects of chemotherapy and facilitate the growth of others. 

The challenge in treating hypercortisolism is that destroying the ability of the body to make cortisol can cause serious harm. An effective medication must modulate cortisol's effects without suppressing them below normal levels or disrupting the body's normal cortisol rhythm. The action of cortisol can effectively be modulated by the use of compounds that compete with cortisol as it attempts to bind to GR. Mifepristone, the active ingredient in Korlym, is a competitive GR antagonist, as are Corcept's proprietary compounds.

Because mifepristone works by reducing the binding of excess cortisol to GR, it can modulate the effects of abnormal levels and release patterns of cortisol without compromising cortisol's necessary, normal functions and rhythms. However, mifepristone also binds to PR thereby terminating pregnancy and causing other side effects, including irregular vaginal bleeding (a manageable but debilitating side-effect suffered by a significant portion of women who take Korlym). Our selective cortisol modulators block GR as potently as mifepristone does, but have no affinity for PR and so do not cause PR-related side effects.

Cushing's Syndrome

Background. Cushing's syndrome is the clinical manifestation of hypercortisolism.  It most often affects adults aged 20 to 50. An estimated 10 to 15 of every one million people are newly diagnosed with this syndrome each year, resulting in approximately 3,000 new patients and about 20,000 patients with Cushing's syndrome in the United States, approximately half of whom are cured by surgery .  

Symptoms vary, but most people with Cushing's syndrome have one or more of the following symptoms: high blood sugar, diabetes, high blood pressure, upper body obesity, rounded face, increased fat around the neck, thinning arms and legs, severe fatigue and weak muscles. Irritability, anxiety, cognitive disturbances and depression are also common. Cushing's syndrome can affect every organ system in the body and can be lethal if not treated. The preferred treatment for Cushing's syndrome patients is surgery, which, if successful, can cure the disease. Depending on the type of tumor, surgery can result in a range of complications and has varying rates of success. In approximately half of the patients, surgery is not successful because the tumor cannot be located or removed completely. 

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Korlym to Treat Patients with Cushing's Syndrome . We have received orphan drug designation and market ing exclusivity from the FDA for Korlym for the treatment of patients with endogenous Cushing's syndrome. Orphan drugs receive seven years of marketing exclusivity for the approved indication from the date of drug approval, as well as tax credits for clini cal trial costs, marketing application filing fee waivers and assistance from the FDA in the drug development process .

We sell Korlym in the United States, using experienced sales representatives who target the endocrinologists and other specialists caring for patients with Cushing's syndrome. We also reach patients directly through web-based initiatives and interactions with patient groups. Because many people who suffer from Cushing's syndrome are undiagnosed or inadequately treated, we have developed and continue to refine and expand programs to educate physicians and patients about diagnosis of this syndrome and the role cortisol modulators can play in treating the disease. In addition, we have a field-based force of medical science liaisons.

We use one specialty pharmacy and one specialty distributor to distribute Korlym and provide logistical support. Our policy is that no patient with Cushing's syndrome will be denied access to Korlym for financial reasons.  To help us achieve that goal, we fund our own patient support programs and donate money to independent charitable foundations that help patients cover the cost of their Cushing's syndrome care, whether or not they are taking Korlym.

Relacorilant (CORT125134) to Treat Patients with Cushing's Syndrome .  We are conducting a Phase 2 trial of our proprietary, selective cortisol modulator, relacorilant, to treat patients with Cushing's syndrome. The trial is open label and will enroll approximately 30 patients at sites in the United States and Europe.  Relacorilant shares Korlym's affinity for GR. Data from its Phase 1 trial showed that relacorilant prevents the effects of the steroid prednisone, a commonly-used synthetic GR agonist, on serum osteocalcin, white blood cell counts, glucose metabolism and expression of the FKBP5 gene – a marker of GR activation. Modulating the effect of prednisone is a strong surrogate for modulation of cortisol – the essential quality of an effective treatment for patients with Cushing's syndrome. Unlike Korlym, relacorilant has no affinity for PR and so does not cause the effects associated with PR affinity, including endometrial thickening and irregular vaginal bleeding.

Interim results from the first 17 patients to complete the trial showed statistically significant, dose-dependent improvements in glucose tolerance and serum osteocalcin (a marker of bone growth that is suppressed in Cushing's syndrome, which causes osteoporosis).  Forty-two percent of the patients with uncontrolled hypertension exhibited a five millimeter or greater reduction in systolic or diastolic blood pressure.  As expected, patients experienced no progesterone-related side effects.  There were no discontinuations due to drug-related adverse events and no serious adverse events.

FKBP5 Gene Expression .  We have developed a CLIA-validated assay to measure FKBP5 gene expression that we believe will enable physicians to more easily identify new patients with hypercortisolism and better treat patients already in their care.

Oncology

There is substantial in vitro, in vivo and clinical evidence that cortisol's activity allows certain solid-tumor cancers to resist treatment. In some cancers, cortisol activity promotes tumor growth. In other cancers, cortisol stimulates genes that retard cellular apoptosis. Cortisol also suppresses the body's immune response, which is often useful, as it lessens the frequency of autoimmune diseases. However, activating, not suppressing, the immune system is beneficial in fighting certain cancers . Adding a cortisol modulator to a treatment regimen may help the patient's immune system combat the disease .   Many tumor types express GR and are potential targets for cortisol modulation therapy, among them triple-negative breast, ovarian, castration-resistant prostate, cervical, and pancreatic cancers, as well as sarcoma and melanoma .

Relacorilant to Treat Patients with Solid-Tumors .  We are conducting a Phase 1/2 open label trial of Abraxane in combination with relacorilant to treat solid tumors. As we identify indications of clinical activity in a particular tumor-type, we will further test the combination's efficacy and safety in expansion cohorts of approximately 20 patients.  We began enrolling the first expansion cohort in December 2017, treating patients with metastatic pancreatic cancer.  We continue to explore opening cohorts in patients with other solid-tumors, including metastatic triple-negative breast and ovarian cancer. We may also initiate new trials evaluating relacorilant in combination with other cancer therapies, including immunotherapy, to treat solid tumors.

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Korlym to Treat Patients with Triple-Negative Breast Cancer ("TNBC") .   In December 2016, we announced the results of our Phase 1/2 trial of Korlym in combination with eribulin (Eisai Inc.'s drug, Halaven ® ) to treat pa tients with metastatic TNBC.  The trial studied 21 patients with GR-positive tumors, one with GR-negative tumors and one with tumors whose GR status was not known. As determined using the Response Evaluation Criteria in Solid Tumors ("RECIST"), efficacy re sults were as follows: four patients exhibited a partial response, defined as a 30 percent or greater reduction in tumor size; eight had stable disease; and 11 had progressive disease. Six patients achieved progression-free survival ("PFS") longer than the upper bound of the 95% confidence interval for PFS (15 weeks) in patients receiving Halaven ® monotherapy in a comparable population (Aogi et al., Annals of Oncology 23: 1441-1448, 2012). Median PFS in the trial was 11.1 weeks – compared to 7.2 weeks in th e Halaven monotherapy study reported by Aogi .

We believe the addition of Korlym to chemotherapy warrants further study. University of Chicago investigators are leading a 64-patient double-blind, placebo-controlled, multi-center, Phase 2 trial of Korlym combined with Abraxane to treat patients with TNBC. Celgene is funding the trial.  University of Chicago investigators are also conducting a 74-patient, open label trial of Korlym combined with Merck's drug Keytruda ® (pembrolizumab) in patients with advanced HER2-negative and triple-negative breast cancer.  Merck is funding the trial.  We are providing Korlym to both trials.

Cortisol Modulators to Treat Patients with CRPC .  Because androgens stimulate prostate tumor growth, androgen deprivation is a common treatment for metastatic prostate cancer.  Tumors eventually escape androgen deprivation therapy through the proliferation of cells for which cortisol's stimulation of GR is the primary growth factor.  Combining a cortisol modulator with an androgen modulator such as Xtandi may block this escape route.

We have begun dosing patients in an open label Phase 1/2 trial of our proprietary, selective cortisol modulator CORT125281 combined with Xtandi in patients with metastatic CRPC at sites in the United States and Europe.  

University of Chicago investigators are leading an 84-patient, controlled, multicenter Phase 2 trial of Korlym combined with Xtandi to treat patients with metastatic CRPC.  The Department of Defense and the Prostate Cancer Foundation are funding the trial. Pfizer is providing Xtandi. We are providing Korlym .  

We have exclusively licensed patents from the University of Chicago covering the use of cortisol modulators combined with anticancer agents to treat TNBC and with androgen deprivation agents to treat CRPC .

Antipsychotic-Induced Weight Gain and NASH

In animal models, our proprietary selective cortisol modulator CORT118335 potently prevents and reverses the weight gain caused by Eli Lilly and Company's antipsychotic medication Zyprexa ® (olanzapine).  These findings replicate data from placebo- controlled clinical trials we conducted, in which the mifepristone (the active ingredient in Korlym) significantly reduced the weight gain and other adverse metabolic effects in healthy subjects administered Zyprexa ® or Johnson & Johnson's antipsychotic medication Risperdal ® (risperidone).  We published the results of these trials in the journals Advances in Therapy , Gross et al (2009) and Obesity , Gross et al (2010).

CORT118335 also prevents and reverses non-alcoholic fatty liver disease and liver fibrosis in animal models.  We conducted these pre-clinical studies in response to reports suggesting that cortisol modulation with Korlym may have played a role in reversing fatty liver disease in patients with Cushing's syndrome.  Fatty liver disease is a precursor to NASH.

We are conducting a Phase 1 trial of the safety, tolerability and pharmacokinetics of CORT118335.  We plan to advance it to Phase 2 as a potential treatment for antipsychotic-induced weight gain and NASH.

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Development of Our Other Selective Cortisol Modulators

Our portfolio of proprietary selective cortisol modulators, which includes relacorilant, CORT125281 and CORT118335, consists of more than 500 compounds in three structurally distinct families.  All of these compounds potently block GR but not the progesterone, estrogen or androgen receptors. Many of these compounds have demonstrated positive results in animal or in vitro models of cortisol modulation. We plan to continue identifying new compounds and advancing the most promising of them towards the clinic .  

The United States Patent & Trademark Office ("USPTO") has issued us nine composition of matter patents covering our selective cortisol modulators and 22 method of use patents covering the use of cortisol modulators to treat a wide range of serious disorders.   We have exclusively licensed three U.S. method of use patents from Stanford University and five method of use patents from the University of Chicago. We also own an extensive portfolio of patents in countries around the world.  We have applied, and will continue to apply, for U.S. and foreign patents covering the composition and method of use of our product candidates .   See "Business – Intellectual Property."

Studies by Independent Investigators

For many years we have advanced our understanding of cortisol modulation by supporting the work of independent academic investigators. These researchers have studied the utility of mifepristone or our proprietary selective cortisol modulators in a wide range of disorders, including central serous retinopathy, post-traumatic stress disorder, anxiety, alcoholism, cocaine addiction, Alzheimer's disease, ALS, muscular dystrophy, Cushing's syndrome, metabolic syndrome, atherosclerosis, fatty liver disease, and a wide range of solid tumors, including triple-negative breast, prostate, ovarian and non-small cell lung cancers, as well as sarcoma and melanoma.

Clinical Trial Agreements 

Some of our clinical trials are conducted through the use of clinical research organizations ("CROs"). Our Phase 2 trial of relacorilant for the treatment of patients with Cushing's syndrome is being conducted under an agreement with Chiltern International Limited ("Chiltern").  Novella Clinical LLC ("Novella") is helping us conduct our Phase 1/2 trial of CORT125281 to treat patients with CRPC.  Our agreements with Chiltern and Novella may be terminated by us on 60 days' written notice or sooner if the parties mutually agree.

Research and Development Spending

We incurred $40.4 million, $23.8 million and $15.4 million of research and development expenses in the years ended December 31, 2017, 2016 and 2015, respectively, which accounted for 38%, 34% and 29%, respectively, of our total operating expenses in those years. 

Manufacturing Korlym

We do not have manufacturing capabilities and intend to continue to rely on experienced contract manufacturers to produce Korlym and our product candidates. In March 2014, we entered into a long-term agreement with one contract manufacturer – Produits Chimiques Auxiliaires et de Synthese SA ("PCAS"), to produce mifepristone, the active pharmaceutical ingredient ("API") for Korlym, pursuant to which we have agreed to purchase from PCAS a minimum percentage of our mifepristone requirements.   The initial term of the agreement is five years, with an automatic extension of one year, unless either party gives 12-months prior written notice of termination. We have the right to terminate the agreement if PCAS is unable to manufacture mifepristone for nine consecutive months.

We have one tablet manufacturer for Korlym – Alcami Corporation ("Alcami," formerly known as AAI Pharma Services Corp., or AAI). In April 2014, we entered into an agreement with Alcami for the manufacture and packaging of Korlym tablets. The initial term of this agreement is three years, with consecutive automatic extensions of two years, unless either party gives written termination notice (in the case of Alcami, 18 months prior to the end of the applicable term; in our case, 12 months prior to the end of the applicable term). We have the right to terminate the agreement if (i) Alcami is unable to manufacture our product for four consecutive months or (ii) our product is withdrawn from the market. We have no minimum purchase obligations under this agreement.

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Orphan Drug Designation

We have received Orphan Drug designation for Korlym for the treatment of endogenous Cushing syndrome in the United States.   Orphan designation qualifies the sponsor of the product for the tax credit and marketing incentives of the Orphan Drug Act, including seven years of exclusive marketing rights for the specific drug for the orphan indication, if it receives the first regulatory approval for that indication, with limited exceptions.  A marketing application for a prescription drug product that has been designated as a drug for a rare disease or condition is not subject to a prescription drug user fee unless the application includes an indication for other than a rare disease or condition. Orphan Drug designation for one medication does not prevent competitors from developing or marketing different drugs for the same Orphan indication. It also does not convey an advantage in, or shorten the duration of, the review and approval process for a drug.

Our marketing exclusivity period for Korlym to treat patients with Cushing's syndrome ends on February 17, 2019, after which time a competitor that has received FDA approval for a generic equivalent of Korlym may market its drug to patients with Cushing's syndrome, provided doing so would not infringe any of our applicable patents.  We have two patents listed in the FDA's Approved Drug Products with Therapeutic Equivalence Evaluations, commonly known as the Orange Book, that we believe would be infringed by a generic competitor for Korlym.  We have additional applications for patents we believe would qualify for the Orange Book under examination by the USPTO.

Hatch-Waxman Amendments to the Federal Food, Drug and Cosmetic Act ("FDCA")

The FDCA establishes an approval process for generic versions of approved drugs ("Innovator Drugs") through the submission of an Abbreviated New Drug Application, or ANDA. An ANDA provides for marketing of a generic drug with the same active ingredients, dosage form, strength, route of administration, labeling, performance characteristics and intended use, among other things, to the Innovator Drug. ANDAs are termed "abbreviated" because they are generally not required to include preclinical and clinical data establishing safety and efficacy. Instead, generic applicants must demonstrate that their product is bioequivalent to, or performs in the same manner as, the Innovator Drug.

In seeking approval, ANDA applicants must certify to the FDA that any Orange Book patents relating to the Innovator Drug are invalid or will not be infringed by the manufacture, use or sale of the generic product.  This is known as a "Paragraph IV certification."  If the owner of the Innovator Drug responds to receipt of a paragraph IV certification by suing the ANDA applicant for patent infringement, the FDA may not approve the ANDA application until the earlier of 30 months or when the infringement case concerning each such patent was favorably decided in the ANDA applicant's favor or settled, or such shorter or longer period as may be ordered by a court. This prohibition is generally referred to as the 30-month stay. Owners of Innovator Drugs regularly challenge paragraph IV certifications and trigger the 30-month stay, recognizing that the related patent litigation may take many months or years to resolve.

In February 2018, we received notice that Teva Pharmaceuticals USA, Inc. ("Teva") had submitted an ANDA seeking FDA approval for a generic version of Korlym.  Teva's Paragraph IV certification stated that our listed Orange Book patents will not be infringed by Teva's proposed product, are invalid and/or are unenforceable .  We plan to vigorously defend our extensive intellectual property rights in Korlym .

Competition for Korlym

Korlym competes with established treatments, including surgery, radiation and other medications, including "off-label" uses of drugs such as ketoconazole, an anti-fungal medication. Korlym also competes with Novartis' drug, Signifor ® (pasireotide) Injection, which the FDA approved in December 2012 for the treatment of adult patients with Cushing's disease who are not candidates for pituitary surgery or for whom surgery did not work. (Cushing's disease is a subset of Cushing's syndrome that afflicts approximately 70 percent of patients with Cushing's syndrome.)

In the future, Korlym may experience competition from generic versions and from new compounds. For example, Strongbridge Biopharma plc is developing levoketoconazole, a chiral form of ketoconazole. Novartis is

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developing osilodrostat, a cortisol synthesis inhibitor.  Both compounds are in Phase 3 testing in the United States and European Union.

Intellectual Property

Patents and other proprietary rights are important to our business. It is our policy to seek patent protection for our inventions and to rely upon trade secrets, know-how, continuing technological innovations and licensing opportunities to develop and maintain our competitive position.

Mifepristone. The composition of matter patent covering mifepristone has expired. The only other FDA-approved use of mifepristone is to terminate pregnancy. The FDA has imposed significant restrictions on this use of mifepristone. To protect our market for Korlym we rely on (1) the exclusive marketing rights conferred as a benefit of orphan drug designation and marketing exclusivity in the United States, (2) the restrictions imposed by the FDA on the use of mifepristone to terminate pregnancy, (3) the different patient populations, administering physicians and treatment settings between the use of mifepristone to terminate pregnancy and to treat Cushing's syndrome and (4) our method of use patents described below.

Oncology. We have exclusive license agreements with the University of Chicago to patents covering the use of all cortisol modulators, including mifepristone, in the treatment of triple-negative breast cancer (in combination with anti-cancer agents) and castration-resistant prostate cancer (in combination with androgen deprivation agents). See "Business – License Agreements."

Other Method of Use Patents.  We own U.S. patents for the use of cortisol modulators in the treatment of mild cognitive impairment, the prevention and treatment of stress disorders, improving the therapeutic response to electroconvulsive therapy, the treatment of delirium, the treatment of catatonia, the treatment of psychosis with Interferon-Alpha therapy, inhibiting cognitive deterioration in adults with Down's Syndrome, the treatment of weight gain following treatment with antipsychotic medication, the treatment of gastroesophageal reflux disease, the treatment of migraine headaches, the treatment of neurological damage in premature infants, and the treatment of diseases using combination steroid and GR antagonist therapy. We own a method of use patent for optimizing mifepristone levels in plasma serum in patients suffering from any disorder, including Cushing's syndrome, amenable to treatment with mifepristone. We also own a method of use patent covering the use of mifepristone to diagnose and treat ACTH-dependent Cushing's syndrome.  The expiration dates of these patents and their foreign counterparts range from 2020 to 2036.

In addition, we have 22 U.S. method-of-use applications covering our selective cortisol modulators.

We estimate that the expiration dates of the patents that could issue from these applications and their foreign counterparts range from 2029 to 2037.

Composition of Matter Patents Covering Our Proprietary, Selective Cortisol Modulators.  We have nine U.S. composition of matter patents containing claims relating to three structurally distinct series of next-generation cortisol modulators. Four of these patents have issued in Europe, with an additional U.S. application pending. The expiration dates of these patents and their foreign counterparts range from 2026 to 2033.

We have also filed, where we deemed appropriate, foreign patent applications corresponding to our U.S. patents and applications. We cannot assure you that any of our patent applications will result in the issuance of patents, that any issued patent will include claims of the breadth sought in these applications, or that competitors or other third-parties will not successfully challenge or circumvent our patents if they are issued.

We believe that our patents are valid and that we do not infringe any third-party's patents or other proprietary rights, and we are not obligated to pay royalties relating to the use of intellectual property to any third-parties other than Stanford University and the University of Chicago.

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License Agreements

We have exclusively licensed three issued U.S. patents from Stanford University for the use of cortisol modulators, including mifepristone, in the treatment of psychotic depression, cocaine-induced psychosis and early dementia, including early Alzheimer's disease. We are required to make milestone payments and pay royalties to Stanford University on sales of products commercialized under these patents. Milestone payments are creditable against future royalties. Our license will end upon expiration of the related patents in 2018 and 2019 or upon notification by us to Stanford. 

We have also exclusively licensed from the University of Chicago three issued U.S. patents for the use of cortisol modulators in the treatment of triple-negative breast cancer, and a second patent family consisting of an issued U.S. patent and applications in Europe having claims directed to the use of cortisol modulators to treat castration-resistant prostate cancer. We are required to pay the University of Chicago customary milestone fees and royalties on revenue from products commercialized under the issued patents or patents that may issue pursuant to the pending applications. Our license will end upon expiration of the related patents in 2031 and 2033 or upon notification by us to the University of Chicago. 

Government Regulation

Prescription pharmaceutical products are subject to extensive pre- and post-approval regulation, including regulations that govern the testing, manufacturing, safety, efficacy, labeling, storage, record keeping, advertising, and promotion of the products under the Federal Food, Drug and Cosmetic Act. All of our product candidates require regulatory approval by government agencies prior to commercialization. The process required by the FDA before a new drug may be marketed in the United States generally involves the following: completion of preclinical laboratory and animal testing; submission of an Investigational New Drug ("IND"), which must become effective before clinical trials may begin; performance of adequate and well-controlled human clinical trials to establish the safety and efficacy of the proposed drug's intended use; and approval by the FDA. The process of complying with these and other federal and state statutes and regulations involves significant time and expense.

Preclinical studies are generally conducted in laboratory animals to evaluate the potential safety and the efficacy of a product. Drug developers submit the results of preclinical studies to the FDA as a part of an IND, which must be approved before beginning clinical trials in humans. If it is anticipated that the clinical trial will be conducted in Europe, a Clinical Trial Authorization (CTA) must be submitted and approved by the appropriate European regulatory agency prior to the commencement of the study. Typically, human clinical trials are conducted in three sequential phases that may overlap.

The FDA and the institutional review boards associated with clinical trial sites closely monitor the progress of clinical trials conducted in the United States and may reevaluate, alter, suspend or terminate a trial at any time for various reasons, including a belief that the subjects are being exposed to unacceptable risks. The FDA may also require that additional trials be conducted.

After Phase 3 trials are completed, drug developers submit the results of preclinical studies, clinical trials, formulation studies and data supporting manufacturing to the FDA in the form of a New Drug Applications ("NDA"). The FDA reviews an NDA upon submission and may request additional information rather than accept an NDA for filing. If the FDA accepts an NDA for filing, it may grant marketing approval (i.e., permit commercial sales), request additional information or deny the application. Once an NDA has been accepted for filing, by law the FDA has 180 days to examine the application and respond to the applicant. However, the review process is often significantly extended by FDA requests for additional information or clarification. Under the Prescription Drug User

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Fee Act, the FDA has a goal of responding to NDAs within ten months of the filing date for standard review, and six months for priority review if a sponsor shows that its drug candidate provides a significant benefit compared to marketed drugs. FDA approvals may not be granted on a timely basis or at all.

If the FDA approves an NDA, physicians may prescribe the subject drug to patients in the United States. The FDA may withdraw a product's marketing approval if compliance with regulatory standards is not maintained. The drug developer must submit periodic reports to the FDA. Adverse patient experiences with the product must be reported to the FDA, which could result in the imposition of marketing restrictions through labeling changes or removal of the product from the market.  In addition, the FDA may require post-marketing studies, referred to as Phase 4 studies, to monitor the effect of approved products, and may limit further marketing of the product based on the results of such studies.

Facilities involved in the manufacture of drugs are subject to periodic inspection by the FDA and other authorities where applicable and must comply with FDA-mandated current Good Manufacturing Practices regulations ("cGMP"). Failure to comply with statutory and regulatory requirements subjects the manufacturer to possible legal or regulatory action, including suspension of manufacturing or a product recall.

The FDA imposes complex regulations on entities, such as Corcept, that advertise and promote pharmaceuticals.  These include standards and regulations for direct-to-consumer advertising, off-label promotion, and industry-sponsored scientific and educational activities. The FDA has broad enforcement authority under the Federal Food, Drug and Cosmetic Act. Failure to abide by its regulations can result in penalties including the issuance of a warning letter directing a company to correct deviations from FDA standards, a requirement that future advertising and promotional materials be pre-cleared by the FDA, and state and federal civil and criminal penalties.

In addition to studies requested by the FDA after approval, a drug developer may conduct other preclinical and clinical trials investigating use of the approved compound to treat additional indications. Data supporting the use of a drug for new indications must be approved by the FDA before the drug can be marketed for these indications.

Marketing Approvals Outside the United States

We are not seeking regulatory approval to market Korlym outside the United States. If we do so, we (or our potential future partners) will have to complete an approval process similar to the U.S. approval process before we can distribute our product candidates in those countries. The approval procedure and the time required for approval vary from country to country and can involve additional preclinical and clinical trials. Foreign approvals may not be granted on a timely basis, or at all. Regulatory approval of pricing is required in most countries other than the United States. The prices approved may be too low to generate an acceptable return.

Coverage and Reimbursement

Sales of our products will depend, in part, on the extent to which they will be covered by government health care programs and commercial insurance and managed healthcare organizations. Although this trend has not had a material impact on the amount or timing of our revenues, these third-party payors are increasingly limiting coverage and reducing reimbursements for medical products and services. In addition, the U.S. government, state legislatures and foreign governments have continued implementing cost-containment programs, including price controls, restrictions on coverage and reimbursement and requirements for substitution of generic products. Adoption of price controls and cost-containment measures, and adoption of more restrictive policies in jurisdictions with existing controls and measures, could limit our net revenue and results. Decreases in third-party reimbursement for our products or a decision by a third-party payor to not cover our products could reduce physician utilization of our products and have a material adverse effect on our sales, results of operations and financial condition.

Other Healthcare Laws 

We are subject to healthcare regulation and enforcement by the federal government and the states and foreign governments in which we conduct our business. These laws include, without limitation, state and federal anti-kickback, fraud and abuse, false claims, privacy and security and physicians' sunshine laws and regulations.  

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The federal Ant i-Kickback Statute prohibits, among other things, any person from knowingly and willfully offering, soliciting, receiving or providing remuneration, directly or indirectly, to induce either the referral of an individual, for an item or service or the purch asing or ordering of a good or service, for which payment may be made under federal healthcare programs such as the Medicare and Medicaid programs. The Anti-Kickback Statute is subject to evolving interpretations. In the past, the government has enforced t he Anti-Kickback Statute to reach large settlements with healthcare companies based on sham consulting and other financial arrangements with physicians. Further, the recently enacted Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, or collectively, the PPACA, among other things, amends the intent requirement of the federal Anti-Kickback Statute and the criminal statute governing healthcare fraud statutes. A person or entity no longer needs to have a ctual knowledge of these statutes or specific intent to violate them. In addition, the PPACA provides that the government may assert that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a fals e or fraudulent claim for purposes of the federal False Claims Act or federal civil money penalties statute. The majority of states also have anti-kickback laws which establish similar prohibitions and in some cases may apply to items or services reimburse d by any third-party payor, including commercial insurers.

Additionally, the civil False Claims Act prohibits knowingly presenting or causing the presentation of a false, fictitious or fraudulent claim for payment to the U.S. government. Actions under the False Claims Act may be brought by the Attorney General or as a qui tam action by a private individual in the name of the government. Violations of the False Claims Act can result in very significant monetary penalties and treble damages. The federal government is using the False Claims Act, and the accompanying threat of significant liability, in its investigation and prosecution of pharmaceutical and biotechnology companies in connection with the promotion of products for unapproved uses and other sales and marketing practices. The government has obtained multi-billion dollar settlements under the False Claims Act in addition to individual criminal convictions under applicable criminal statutes. We expect that the government will continue to devote substantial resources to investigating healthcare providers' and manufacturers' compliance with applicable fraud and abuse laws.

In addition, there has been increased federal and state regulation of payments made to physicians and other healthcare providers. The PPACA, among other things, imposes new reporting requirements on drug manufacturers for payments made by them to physicians and teaching hospitals, as well as ownership and investment interests held by physicians and their immediate family members. Failure to submit required information may result in civil monetary penalties of up to an aggregate of $150,000 per year (or up to an aggregate of $1 million per year for "knowing failures"), for all payments, transfers of value or ownership or investment interests that are not timely, accurately and completely reported in an annual submission. Drug manufacturers must report such payments to the government by the 90th day of each calendar year. Certain states also mandate implementation of commercial compliance programs, impose restrictions on drug manufacturer marketing practices and/or require the tracking and reporting of gifts, compensation and other remuneration to physicians.

The shifting commercial compliance environment and the need to build and maintain robust and expandable systems to comply with different compliance and/or reporting requirements in multiple jurisdictions increase the possibility that a healthcare company may violate one or more of the requirements. If our operations are found to be in violation of any of such laws or any other governmental regulations that apply to us, we may be subject to penalties, including, without limitation, civil and criminal penalties, damages, fines, the curtailment or restructuring of our operations, exclusion from participation in federal and state healthcare programs and imprisonment, any of which could adversely affect our ability to operate our business and our financial results.

Employees

We are managed by experienced pharmaceutical executives. We also enlist the expertise of associates and advisors with extensive pharmaceutical development experience.  As of December 31, 2017, we had 136 employees, six of whom have MDs. We consider our employee relations to be good. Our employees are not covered by a collective bargaining agreement. 

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About Corcept

We were incorporated in the State of Delaware on May 13, 1998. Our registered trademarks include Corcept ® , Korlym ® and CORLUX ® . Corluxin ® is a registered trademark in the EU. Other service marks, trademarks and trade names referred to in this document are the property of their respective owners.

Available Information

We are subject to the information requirements of the Securities Exchange Act of 1934, as amended, and we therefore file periodic reports, proxy statements and other information with the SEC relating to our business, financial statements and other matters.  These may be inspected and copied at the SEC's Public Reference Room, 100 F Street, N.E., Washington, D.C. 20549, on official business days during the hours of 10:00 A.M. to 3:00 P.M. (Eastern Time).  You may obtain information on the operation of the SEC's Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC also maintains an Internet site, www.sec.gov , that contains reports, proxy statements and other information regarding issuers such as Corcept.

For more information about Corcept, including free access to our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports, visit our website, www.corcept.com .  The information found on or accessible through our website is not incorporated into, and does not form a part of, this Form 10-K.

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ITEM 1A.  RI SK FACTORS

An investment in our common stock involves significant risks. You should carefully consider the risks described below and the other information in this Annual Report on Form 10-K, including our financial statements and related notes, before investing in our common stock. If any of the following risks or uncertainties actually occurs, our business, results of operations or financial condition could be materially harmed, the price of our common stock could decline and you could lose part or all of your investment. The risks and uncertainties described below are those that we currently believe may materially affect us; however, they may not be the only risks and uncertainties that we face. Others of which we are unaware or currently deem immaterial may harm our business.

Risks Related to the Commercialization of Korlym ®

Failure to generate sufficient revenue from the sale of Korlym would harm our financial results and would likely cause our stock price to decline.

For the foreseeable future, our ability to generate revenue and fund our commercial operations and development programs will be solely dependent on the sale of Korlym. Physicians will prescribe Korlym only if they determine that it is preferable to other treatments, even if those treatments are not approved for Cushing's syndrome. Because Cushing's syndrome is rare, most physicians are inexperienced in the care of patients with the illness and it may be difficult to persuade them to prescribe Korlym, even with clinical trial results showing it is a compelling treatment.

Many factors could hamper our efforts to generate Korlym revenue, including: 

Failure to generate sufficient Korlym revenue would prevent us from fully funding our planned commercial and clinical activities and would likely cause our stock price to decline.

Korlym's Orphan Drug designation does not bar other companies from developing different medications to treat patients with Cushing's syndrome.  The availability of competing treatments could limit our revenue from the sale of Korlym for the treatment of Cushing's syndrome or other indications.  

Although we have received orphan drug designation in the United States, the regulatory authorities may still approve other drugs for the treatment of patients with Cushing's syndrome.

In 2012, Novartis received approval in both the United States and the European Union ("EU") to market its somatostatin analogue Signifor ® (pasireotide) Injection for adult patients with Cushing's disease (a subset of Cushing's syndrome that accounts for approximately 70 percent of all patients with Cushing's syndrome) for whom pituitary surgery is not an option or has not been curative. In addition, Novartis is conducting Phase 3 trials of the experimental cortisol synthesis inhibitor osilodrostat to treat patients with Cushing's syndrome and has received Orphan Designation in the United States and the EU for that use. Novartis has substantially more resources and experience than we do and may provide significant competition.

Strongbridge Biopharma plc ("Strongbridge") has received orphan drug designation in the United States and the EU for the use of the cortisol synthesis inhibitor levoketoconazole to treat Cushing's syndrome and is conducting Phase 3 trials in Europe and the United States for this indication.

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If generic products that compete with Korlym or any future Corcept product are approved and launched, our business would be adversely affected.

Although Korlym is covered by patents covering its method of use, including its use to treat patients with Cushing's syndrome, we cannot assure you that third parties will not attempt to invalidate or design around the patents, or assert that they are invalid or otherwise unenforceable, and introduce generic equivalents of Korlym or any future products. Once orphan drug exclusivity for Korlym in the United States for the treatment of Cushing's syndrome expires in February 2019, other companies could attempt to introduce generic equivalents of these products if they do not infringe our patents or can demonstrate that our patents are invalid or unenforceable.  After the introduction of a generic competitor, a significant percentage of the prescriptions written for a product may be filled with the generic version, resulting in a loss in sales of the branded product and reducing its price. Generic competition for Korlym or our future products could have a material adverse effect on our sales, results of operations and financial condition.

In February 2018, we received notice that Teva had filed an ANDA requesting approval to market a generic version of Korlym.  The notice included a Paragraph IV certification stating that our patents in the Orange Book for Korlym are invalid, unenforceable or will not be infringed by Teva's proposed generic product.  Corcept intends to file suit against Teva, triggering the automatic 30-month stay of FDA approval.  

Litigation to enforce or defend intellectual property rights is complex, costly and involves significant commitments of management time. If any of our Orange Book listed patents are successfully challenged by Teva or any other party, and a generic version of Korlym is approved, Korlym' sales and price could decline materially.

If we cannot continue to obtain acceptable prices or adequate insurance coverage and reimbursement for Korlym, we will be unable to generate significant revenues.

The commercial success of Korlym depends on the availability of insurance coverage and reimbursement.  Government payors, including Medicare, Medicaid and the Veterans Administration, as well as private insurers and health maintenance organizations, are increasingly attempting to contain healthcare costs by limiting reimbursement for medicines. If government or private payors cease to provide adequate and timely coverage and reimbursement for Korlym, physicians may not prescribe the medication or patients may not purchase it, if it is prescribed. In addition, delays in coverage for individual patients may reduce our revenues.

In some foreign markets, drug prices and the profitability of prescription medications are subject to government control. In the United States, we expect that there will continue to be federal and state proposals for similar controls. Also, the trends toward managed health care in the United States and recent laws and legislation intended to increase the public visibility of drug prices and reduce the cost of government and private insurance programs could significantly influence the purchase of health care services and products and may result in lower prices for Korlym.

In the United States, there have been and continue to be a number of legislative initiatives to contain healthcare costs. The Patient Protection and Affordable Care Act ("PPACA"), which was passed in 2010, substantially changed the way health care is financed by both governmental and private insurers and significantly impacts the U.S. pharmaceutical industry. The PPACA, among other things, expanded Medicaid program eligibility and access to commercial health insurance coverage, increased the minimum Medicaid rebates owed by manufacturers under the Medicaid Drug Rebate Program and extended the rebate program to individuals enrolled in Medicaid managed care organizations, established annual fees and taxes on manufacturers of certain branded prescription drugs, and promoted a new Medicare Part D coverage gap discount program. The PPACA also appropriated additional funding to comparative clinical effectiveness research, although it remains unclear how the research will impact current Medicare coverage and reimbursement or how new information will influence other third-party payor policies.

Since its enactment, there have been judicial and Congressional challenges to certain aspects of the PPACA, and we expect there will be additional challenges and amendments to the PPACA in the future, particularly in light of the new presidential administration and U.S. Congress. For example, on January 20, 2017, President Trump signed an Executive Order directing federal agencies with authorities and responsibilities under the PPACA to

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waive, defer, grant exemptions from, or delay the implementation of any provision of the PPACA that would impose a fiscal or regulatory burden on states, individuals, healthcar e providers, health insurers, or manufacturers of pharmaceuticals or medical devices. On October 12, 2017, President Trump signed another Executive Order directing federal agencies to expand access to alternative health plans and health reimbursement arran gements, and the U.S. Department of Health and Human Services announced that it would immediately cease making Cost-Sharing Reduction ("CSR") payments to issuers of qualified health plans. The loss of the CSR payments is expected to increase premiums on ce rtain policies issued by qualified health plans under the PPACA. In addition, CMS has proposed regulations that would give states greater flexibility in setting benchmarks for insurers in the individual and small group marketplaces, which may have the effe ct of relaxing the essential health benefits required under the PPACA for plans sold through such marketplaces. Further, each chamber of Congress has put forth multiple bills designed to repeal or repeal and replace portions of the PPACA. Most recently, th e Tax Cuts and Jobs Acts was enacted, which, among other things, removes penalties for not complying with the individual mandate to carry health insurance. At this time, the full effect that the PPACA, the Executive Orders, the halting of CSR payments and any subsequent legislation would have on our business remains unclear . Any new limitations on, changes to, or uncertainty with respect to the ability of individuals to enroll in governmental reimbursement programs or other third-party payor insurance plans could impact demand for Korlym, which in turn could affect our ability to successfully develop and commercialize our products .

Other legislative and regulatory changes have been proposed and adopted in the United States since the PPACA was enacted. These changes included an aggregate reduction in Medicare payments to providers of up to 2 percent per fiscal year, which went into effect on April 1, 2013 and will remain in effect through 2025 unless additional Congressional action is taken. On January 2, 2013, President Obama signed into law the American Taxpayer Relief Act of 2012, which further reduced Medicare payments to several providers, including hospitals, imaging centers and cancer treatment centers, and increased the statute of limitations period for the government to recover overpayments to providers from three to five years. On February 1, 2016, the Centers for Medicare & Medicaid Services, or CMS, published a final rule that revised certain requirements involved in our calculation of prices we report in connection with our participation in government reimbursement programs so that Korlym will be eligible for purchase by, or qualify for partial or full reimbursement from, Medicaid and other government programs. The extent to which this rule may alter our reported prices and estimated rebates and chargebacks under government programs remains unclear. Moreover, individual states in the United States have also become increasingly aggressive in passing legislation and implementing regulations designed to control product pricing, including price or patient reimbursement constraints, discounts, marketing cost disclosure and transparency measures.

These new laws and the regulations and policies implementing them, as well as other healthcare reform measures that may be adopted in the future, could materially reduce our ability to successfully develop and commercialize Korlym and our product candidates.

The unfavorable public perception of mifepristone may limit our ability to sell Korlym.

The active ingredient in Korlym, mifepristone, is approved by the FDA in another drug for the termination of early pregnancy. As a result, mifepristone has been and continues to be the subject of considerable ethical and political debate in the United States and elsewhere. Public perception of mifepristone may limit our ability to engage alternative manufacturers and may limit the commercial acceptance of Korlym by patients and physicians. Even though we have taken measures to minimize the likelihood of the prescribing of Korlym to a pregnant woman, physicians may choose not to prescribe Korlym to a woman simply to avoid the risk of unintentionally terminating a pregnancy.   

We have no manufacturing or pharmacy capabilities and depend on third-party vendors to manufacture Korlym's active ingredient, form it into tablets, package it, and dispense it to patients. We also depend on third-party suppliers to manufacture the API and capsules for relacorilant, CORT118335, CORT125281 and our other product candidates. If these suppliers become unable or unwilling to perform these functions and we cannot transfer our business to qualified replacement vendors in a timely manner, our business will be harmed.

A single third-party manufacturer, PCAS, supplies the API in Korlym. Another third-party manufacturer, Alcami, produces and bottles our Korlym tablets.  Our agreements with these vendors automatically renew . One specialty pharmacy, Optime Care, Inc., dispenses the Korlym we sell directly to patients, which represents

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approximately 99 percent of our revenue. Our agreement with this vendor has a five-year term and renews upon the written consent of both parties. We rely on other third-parties to manufacture the API and capsules of our selective cortisol modulators, including relacoril ant, CORT118335 and CORT125281. If any of these vendors is unable or unwilling to meet our requirements, we may not be able to manufacture or dispense our product in a timely manner. Our arrangements with these manufacturers are terminable by them, subject to notice provisions.  Any third-party manufacturer or specialty pharmacy we engage will be subject to regulation by the FDA and other governmental authorities, including, in some cases, the EMA. We do not control these vendors' processes or operations an d cannot assure that they will meet applicable regulatory requirements or their contractual obligations to us.  Identifying replacements for these vendors and transitioning our business to them would be time-consuming, complex and expensive.  Failure to do so efficiently and in a timely manner would harm our business.

The facilities used by our vendors to manufacture and package Korlym and our product candidates must be approved by the FDA. We do not control the manufacturing activities of, and are completely dependent on, our contract manufacturing partners for compliance with the regulatory requirements known as current good manufacturing practices ("cGMPs"). If our contract manufacturers cannot successfully manufacture material that conforms to our specifications and the strict requirements of the FDA or others, they will not be able to maintain regulatory approval for their manufacturing facilities. We have no control over whether our contract manufacturers maintain adequate quality control and hire qualified personnel. If the FDA, EMA or a comparable foreign regulatory authority does not approve these facilities for the manufacture of our products or if it withdraws its approval, we may need to find alternative manufacturing facilities, which would significantly hamper our ability to develop, obtain regulatory approval for or market our products. In addition, sanctions could be imposed on us, including fines, injunctions, civil penalties, failure of regulators to approve our product candidates, delays, suspension or withdrawal of approvals, seizures or recalls of products, operating restrictions and criminal prosecutions, any of which could harm our business. 

In addition to meeting stringent regulatory requirements, our suppliers must manufacture Korlym and our product candidates on a timely basis in the quantities that we require.  If they fail to do so, we may exhaust our Korlym or product candidate inventory and not be able to generate revenue or our advance our clinical development programs in a timely manner.

We may not have adequate insurance to cover our exposure to product liability claims.

We may be subject to product liability or other claims based on allegations that Korlym or one of our product candidates has caused adverse effects. Such a claim may damage our reputation by raising questions about Korlym or our product candidates' safety and could prevent or interfere with product commercialization. Less common adverse effects of a pharmaceutical product are sometimes not known until long after the product is approved for marketing. Because the active ingredient in Korlym is used to terminate pregnancy, clinicians using the medicine in our clinical trials and physicians prescribing the medicine to women must take strict precautions to ensure that the medicine is not administered to pregnant women. Failure to observe these precautions could result in significant product liability claims.

We have product liability insurance with coverage limits we believe to be appropriate for a company marketing a single pharmaceutical product and developing others. However, this insurance may become prohibitively expensive or may not fully cover our potential liabilities. Our inability to obtain adequate insurance coverage at an acceptable cost could prevent or inhibit the commercialization of Korlym or our product candidates, or result in meaningful underinsured or uninsured liability. Defending a lawsuit could be costly and significantly divert management's attention from conducting our business.

We are subject to ongoing and continued regulatory review. If we are unable to maintain regulatory approval of Korlym for the treatment of patients with Cushing's syndrome or if we fail to comply with regulatory requirements, we will be unable to generate revenue or may be subject to penalties and our business would be harmed.

The FDA's approval of Korlym was limited to the indication stated in Korlym's label. If we violate any of the FDA's restrictions, the FDA could withdraw its approval. 

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We are subject to ongoing obliga tions and continued regulatory review by the FDA and other regulatory authorities in the United States and other countries with respect to the research, testing, manufacturing, labeling, distribution, adverse event reporting, storage, selling, advertising, promotion, recordkeeping and marketing of products. These requirements include submissions of safety information, annual updates on manufacturing activities and continued compliance with FDA regulations known as cGMPs, current good laboratory practices (" cGLPs") and current good clinical practices ("cGCPs"). The FDA enforces these regulations through periodic inspections of us and the laboratories, manufacturers, and clinical sites we use.  (Foreign regulatory authorities have comparable requirements and e nforcement mechanisms.)  Discovery of previously unknown problems with a product, including adverse events of unanticipated severity or frequency or with our third-party manufacturers or manufacturing processes, or failure to comply with FDA and applicable foreign and U.S. regulatory requirements, may subject us to substantial civil and criminal penalties, injunctions, holds on clinical trials, product seizure or detention, refusal to permit the import or export of products, restrictions on product marketin g, withdrawal of the product from the market, voluntary or mandatory product recalls, total or partial suspension of production, refusal to approve pending NDAs or supplemental NDAs, and suspension or revocation of product approvals.

The FDA's policies may change or new governmental regulations may be enacted that prevent, limit or delay regulatory approval of our product candidates. We cannot predict the likelihood, nature or extent of future government regulations.

Recent U.S. tax legislation may materially adversely affect our results of operations, financial condition and cash flows.

Recently enacted U.S. tax legislation has significantly changed the U.S. federal income taxation of U.S. corporations, including by reducing the U.S. corporate income tax rate, limiting interest deductions, permitting immediate expensing of certain capital expenditures, adopting elements of a territorial tax system, imposing a one-time transition tax (or "repatriation tax") on all undistributed earnings and profits of certain U.S.-owned foreign corporations, revising the rules governing net operating losses and the rules governing foreign tax credits, and introducing new anti-base erosion provisions. Many of these changes are effective immediately, without any transition periods or grandfathering for existing transactions. The legislation is unclear in many respects and could be subject to potential amendments and technical corrections, as well as interpretations and implementing regulations by the Treasury and Internal Revenue Service ("IRS"), any of which could lessen or increase certain adverse impacts of the legislation. In addition, it is unclear how these U.S. federal income tax changes will affect state and local taxation, which often use federal taxable income as a starting point for computing state and local tax liabilities.

We may be subject to civil or criminal penalties if we market Korlym in a manner that violates FDA regulations or health care fraud and abuse laws.

In the United States, we are subject to FDA regulations governing the promotion and sale of medications. Although physicians are permitted to prescribe drugs for indications other than those approved by the FDA, manufacturers are prohibited from promoting products for such "off-label" uses. In the United States, we market Korlym for treatment of hyperglycemia secondary to hypercortisolism in adult patients with endogenous Cushing's syndrome who have type 2 diabetes mellitus or glucose intolerance and have failed surgery or are not candidates for surgery and provide promotional materials and training programs to physicians regarding the use of Korlym for this indication. Although we believe our marketing materials and training programs for physicians do not constitute "off-label" promotion of Korlym, the FDA may disagree. If the FDA determines that our promotional materials, training or other activities by our employees or agents constitute "off-label" promotion of Korlym, it could ask us to change our training or promotional materials or other activities.  The FDA could also subject us to regulatory enforcement actions, including issuance of a public "warning letter," injunction, seizure, civil fine or criminal penalties. Other federal or state enforcement authorities might act if they believe that the alleged improper promotion led to the submission and payment of claims for an unapproved use, which could result in significant fines or penalties under other statutory authorities, such as laws prohibiting false claims for reimbursement. Even if it is determined that we are not in violation of these laws, we may be faced with negative publicity, incur significant expenses and be forced to devote management time to defending our position.

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We are subject to federal and state healthcare fraud and abuse regulations, including:

The risk of our being found in violation of these laws and regulations is increased by the fact that many of them have not been fully interpreted by the regulatory authorities or the courts and their provisions are open to a variety of interpretations. Because of the breadth of these laws and the narrowness of the statutory exceptions and safe harbors available under them, it is possible that some of our business activities, including our relationships with physicians and other healthcare providers, some of whom recommend, purchase and/or prescribe our products, and the manner in which we promote our products, could be subject to challenge. We are also exposed to the risk that

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our employees, independe nt contractors, principal investigators, consultants, vendors, distributors, and CROs may engage in fraudulent or other illegal activity. Although we have policies and procedures prohibiting such activity, it is not always possible to identify and deter mi sconduct and the precautions we take may not be effective in controlling unknown risks or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to comply with applicable laws and regulations. 

If our operations are found to be in violation of any of the laws described above or any other government regulations, we may be subject to civil and criminal penalties, damages, fines, exclusion from governmental health care programs, and the curtailment or restructuring of our operations, any of which could adversely affect our financial results and ability to operate.

A break-down or breach of our information technology systems could subject us to liability or interrupt the operation of our business. 

We store sensitive data on our computer networks and on the networks of third-party vendors, including intellectual property and confidential information relating to our business, patients and employees.  Despite the implementation of security measures, our internal computer systems and those of our vendors are subject to the risk of cyber-attacks, computer viruses, unauthorized access, natural disasters, terrorism, war and telecommunication and electrical failures.  In addition, system failures could cause the loss of valuable clinical trial data or otherwise disrupt our clinical and commercial activities and be expensive and time-consuming to remedy. If a disruption or security breach resulted in the disclosure of confidential or proprietary information, we could incur liability and our research, development and commercialization efforts could be delayed or otherwise harmed.

A catastrophic disaster could damage our own or our manufacturers' facilities and equipment, which could require us to cease or curtail operations.

Our business is vulnerable to damage from various types of natural disasters or other disruptive events, including earthquakes, fires, floods, power losses and communications failures. For example, our headquarters are located in the San Francisco Bay Area, which is earthquake-prone, and our specialty pharmacy is located in an area that is subject to severe weather conditions. In addition, political considerations relating to mifepristone put us and our manufacturers at increased risk for terrorist attacks, protests or other disruptive events. If a disaster or similar event were to occur, we might not be able to operate our business or our manufacturers might not be able to produce or dispense Korlym or our product candidates. Our insurance may not cover or be adequate to cover losses resulting from disasters or other business interruptions.

Risks Related to the Development of our Product Candidates

Clinical drug development is lengthy, expensive and is often not successful. Results of earlier studies and trials may not be predictive of future trial results.

Clinical development is expensive and takes a long time. Data obtained from clinical trials are susceptible to varying interpretations, which could delay, limit or prevent regulatory approval. The results from early clinical trials may not be predictive of results in later clinical trials. Product candidates may ultimately fail to show the desired safety and efficacy traits despite having produced positive results in preclinical studies and initial clinical trials. Many companies have suffered significant setbacks in advanced clinical trials due to lack of efficacy or the adverse safety profile of their product candidate. 

Our current clinical trials are too small to support marketing approvals for the compounds being studied. Even if these trials generate positive results, those results would have to be confirmed in one or more substantially larger, more expensive and lengthier trials before we could seek regulatory approvals.

The commencement and completion of clinical trials may be delayed by many factors, including:

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We could encounter delays if a clinical trial is suspended or terminated by us, the trial's data safety monitoring board or the IRBs at the sites where the trial is being conducted. The FDA or other regulatory authorities may suspend or terminate a trial for many reasons, including failure to conduct the trial in accordance with regulatory requirements or our clinical protocols, negative findings in an inspection by the FDA or other authorities of our clinical trial operations or clinical trial sites, unforeseen safety issues, failure to demonstrate a benefit from using a product candidate or changes in government regulations.

During the clinical development of a product candidate, we may decide, or the FDA or other regulatory authorities may require us to conduct pre-clinical or clinical studies in addition to those we had planned, which could delay or prevent the completion of its development program or increase its cost. Even if we conduct all of the clinical trials and supportive studies that we consider appropriate, we may not receive regulatory approval of a product candidate.

We depend on third-parties to conduct and manage many of our clinical trials and to perform data collection and analysis. Failure of these third-parties to successfully perform their contractual duties or meet expected timelines may prevent or delay approval of our product candidates, which could harm our business.

We rely on clinical investigators and clinical sites to enroll patients and third-parties such as CROs to manage many of our trials and to perform required data collection and analysis.  Although we control only certain aspects of these third-parties' activities, we are still responsible for ensuring that every study adheres to its protocol and meets all applicable regulatory and scientific standards.  If we or any of the third-parties working with us fail to comply with applicable cGCPs, the clinical data generated in our trials may be unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving a product candidate. We cannot be certain that regulatory authorities will determine that our clinical trials comply with cGCP requirements. In addition, failure of our manufacturers to comply with cGMP may require us to repeat clinical trials, which would delay regulatory approval. We may not be able to select and qualify appropriate sites for our trials. If our clinical sites fail to enroll a sufficient number of patients in a timely way, we may be unable to complete our trials as planned, which could delay or prevent the approval of our product candidates.

Although we have agreements with the CROs and consultants helping to conduct our clinical trials, we may fail to maintain satisfactory relationships with them or with our clinical investigators.  If our agreements with any of these third-parties terminates, we may not be able to enter into alternative arrangements in a timely manner or on commercially reasonable terms, or at all. If the third-parties on which we rely do not perform their contractual duties or fail to meet expected deadlines or if the quality or accuracy of the data they obtain is compromised, our clinical trials may be extended, delayed or terminated and we may be unable to obtain approval for our product candidates.

We may be unable to obtain and maintain regulatory approvals for our product candidates.

We are not permitted to market or promote any products before we receive regulatory approval from the FDA or comparable foreign regulatory authorities. Although we have received FDA approval to market Korlym to treat patients with Cushing's syndrome, we may be unable to maintain such approval. We may not receive regulatory approval for any of our product candidates. Obtaining regulatory approval of a new drug is uncertain, lengthy and expensive. Failure can occur at any stage. In order to receive approval from the FDA for a product candidate, we must demonstrate that the new drug product is safe and effective for its intended use and that our manufacturing processes for the product candidate comply with cGMPs, which govern production processes, quality control and

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recordkeeping. Our inability or the inability of our suppliers to comply with applicable FDA and other regulatory requirements can result in, among other things, delays in or denials of new product approvals, warning letters, fines, consent de crees restricting or suspending manufacturing operations, injunctions, civil penalties, recall or seizure of products, total or partial suspension of product sales and criminal prosecution. Any of these or other regulatory actions could materially harm our business and our financial condition.

Future governmental action or changes in FDA policy or personnel may also result in delays or rejection of an NDA in the United States. In addition, because the only other currently FDA-approved use of mifepristone is the termination of pregnancy, we expect that the label for mifepristone for any indication will include, as Korlym's does, some limitations, including a so-called "black-box" warning that it should not be used by pregnant women or women seeking to become pregnant.

If we receive regulatory approval for our future product candidates, we will be subject to ongoing FDA obligations and continued regulatory oversight and review, such as continued safety reporting requirements; and we may also be subject to additional FDA post-marketing restrictions and obligations. If we are not able to maintain regulatory compliance, we may not be permitted to market our product candidates and may be subject to product recalls or seizures. Any regulatory approvals that we receive for our future product candidates may limit the indicated uses for which the medicine may be marketed or require costly post-marketing studies. 

Failure to obtain regulatory approval in foreign jurisdictions would prevent us from commercializing our product candidates abroad.

We may seek to commercialize our products in international markets on our own or with the help of partners. Outside the United States, we may commercialize a product only if we receive a marketing authorization and, in many cases, pricing approval, from the appropriate regulatory authorities, whose approval processes include all of the risks associated with the FDA's approval process, and, in some cases, additional risks. The approval procedure varies among countries and can involve additional testing.  The time required to obtain approval may differ from that required to obtain FDA approval. Although approval by the FDA does not ensure approval by regulatory authorities in other countries, and approval by one foreign regulatory authority does not ensure approval by regulatory authorities in other foreign countries or by the FDA, failure or delay in obtaining regulatory approval in one country may have a negative effect on the regulatory process in others. We may not be able to file for regulatory approvals and may not receive necessary approvals to commercialize our product candidates in any foreign market. Although we have received orphan drug designation in the EU of Korlym to treat patients with Cushing's syndrome, we are not currently seeking any foreign approvals.  

We face competition from companies with financial, technical and marketing resources substantially greater than our own.

The biotechnology and pharmaceutical industries are intensely competitive and subject to rapid and significant technological change. Our present and potential competitors include major pharmaceutical companies, specialized pharmaceutical firms, universities and public and private research institutions.  These competitors may develop and commercialize medications that are superior to and less expensive than ours. We expect competition to intensify as technical advances are made. 

Many of our competitors and potential competitors have greater experience, more financial and marketing resources and larger research and development staffs than we do. In addition, many of them, either alone or together with their collaborative partners, have significantly greater experience than we do in drug development, obtaining regulatory approvals, manufacturing and commercializing products. They may develop drugs that are superior to our product candidates, which could render our product candidates obsolete or non-competitive.

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Our efforts to discover, develop and commercialize product candidates beyond Korlym for the treatm ent of patients with Cushing's syndrome are at an early stage and we may fail to successfully commercialize any of them.  

To develop additional sources of revenue, we must develop new product candidates or new therapeutic uses for Korlym. Cortisol modulators may not be effective to treat any other disorders. We could discover that cortisol modulators have unacceptable side effects or are otherwise not safe. Due to the potential for lack of efficacy and side effects inherent in novel compounds and in new uses for existing medications, we are developing multiple compounds, which will increase our rate of spending, with no assurance that we will be successful in developing drugs that are safe and effective.

We only have significant clinical and commercial experience with mifepristone, the active ingredient in Korlym, and we may determine that mifepristone is not desirable for uses other than for the treatment of patients with Cushing's syndrome. The compounds developed pursuant to our early discovery, preclinical and clinical research programs may fail to become approved medications, no matter how much management time and money we spend on their development. After a product candidate is identified, we may abandon further development efforts after expending significant expense and time due to financial constraints, concerns over safety or efficacy, marketing considerations, manufacturing difficulties or other reasons. Moreover, governmental authorities may enact new legislation or regulations that limit or restrict our development efforts. If we are unable to successfully discover and commercialize new uses for cortisol modulators, we may be unable to generate sufficient revenue to support our operations.

We will need to increase the size of our organization and we may experience difficulties in managing growth. 

The development of our research and development efforts will be constrained by our administrative, operational and management resources. Growth will impose significant added responsibilities on members of management, including the need to recruit and retain additional employees. To date, we have relied on a small management team. Our future financial performance and our ability to compete effectively will depend on our ability to manage growth effectively.  To that end, we must:

Our failure to accomplish any of these tasks could harm our business.

If we lose our key personnel or are unable to attract and retain additional skilled personnel, we may be unable to pursue our product development and commercialization efforts.

Our ability to operate successfully and manage our potential future growth depends significantly upon retaining key managerial, scientific, sales, marketing, and financial personnel, and attracting and retaining additional highly qualified personnel in these areas. We face intense competition for qualified personnel.  We depend substantially on the principal members of our management and scientific staff. We do not have agreements with any of our executive officers that provide for their continued employment with us or employment insurance covering any of our key personnel. Any officer or employee can terminate his or her relationship with us at any time and work for one of our competitors. The loss of key individuals could delay our research, development and commercialization efforts.

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Risks Related to Our Capital Needs and Financial Results

We may need additional capital to fund our operating plans, including our clinical development programs, or for strategic reasons. Such capital may not be available on favorable terms or at all.

We are dependent on revenue from the sale of Korlym to fund our development programs.  If our Korlym revenues decline or fail to grow, we may need to raise funds to support our operating plans, including our research and development activities.  We may also choose to raise additional capital for strategic reasons, even if we believe our revenue can fully fund our current and future operating plans.  We cannot be certain that additional funding will be available on acceptable terms or at all.  Equity financing could cause dilution. Debt financing, if available, may involve restrictive covenants. If we obtain funds through collaborations with other companies, those arrangements may be on unfavorable terms or may require us to relinquish certain rights to Korlym or our product candidates. If adequate funds are not available, we may be required to delay, reduce the scope of, or eliminate one or more of our research or development programs or we may be required to discontinue operations.

If we were to require additional capital and there was turbulence in the financial markets, institutional investors or lenders may be unwilling to provide capital to businesses such as ours or may greatly increase its cost.  If our commercial activities do not generate enough cash to fully fund the operation of our business and we are unable to raise capital or borrow funds, we may need to find alternative ways to increase our liquidity. Such alternatives may include, without limitation, curtailing clinical or drug development activity or limiting our commercial efforts, which would have an adverse effect on our business and financial condition.

If we acquire other potential products, we will incur a variety of costs and may never realize the anticipated benefits of the acquisition.

We currently have no commitments, agreements or plans for any acquisitions.  However, if appropriate opportunities arise, we may attempt to acquire products or product candidates that complement our operating plan.  Acquiring rights to another potential product or technology may result in unforeseen difficulties and expenditures and may absorb significant management attention that would be spent developing our existing business. We may fail to realize the anticipated benefits of any acquisition, which could dilute our stockholders' ownership interest or cause us to incur debt, expose us to future liabilities and result in amortization or other expenses related to goodwill and other intangible assets.

Risks Relating to Our Intellectual Property

If Korlym or our other product candidates conflict with the patents of others or if we become involved in other intellectual property disputes, we may have to engage in costly litigation or obtain a license or may be barred from commercializing our product candidates or Korlym for a new indication.

Our success depends on our ability to obtain and maintain adequate patent protection for the composition of our proprietary, selective cortisol modulators and their methods of use and the use of Korlym to treat Cushing's syndrome, TNBC and CRPC. If we do not adequately protect our intellectual property, competitors may erode our competitive advantage.

Patents in the pharmaceutical industry are highly uncertain, involve complex legal and factual questions and are the subject of very costly litigation. Our product candidates may give rise to claims that our patents or the patents we have licensed are invalid or that we infringe on the rights of others, which may cause us to engage in costly litigation. If it is determined that our product candidates infringe others' patent rights, we may be required to obtain licenses to those rights. If we fail to obtain licenses when necessary, we may have to delay commercializing our product candidates while we attempt to design around the infringed patent. We could fail and may be unable to commercialize our product candidates. If we become involved in intellectual property litigation, we are likely to incur considerable costs. We do not believe that we infringe any patents or other proprietary rights. We are not obligated to pay royalties relating to the use of intellectual property except to Stanford University and the University of Chicago.  To maintain the exclusive license to these patents, we must make milestone and royalty payments to both universities. If we do not comply with our obligations under our licenses, we may lose the right to

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commercialize cortisol modulators, including mifepristone, for the treatment of psychotic depression, cocaine-induced psychosis, early dementia, TNBC and CRPC.

Our patent applications and patents licensed or issued to us may be challenged by third-parties and our patent applications may not result in issued patents. Our presently pending and future patent applications may not issue as patents, and any patent issued to us may be challenged, invalidated, held unenforceable or circumvented. Our patent claims may not prevent third-parties from producing competing products. The foreign countries in which we may someday operate may not protect our intellectual property to the extent of the laws of the United States. If we fail to obtain adequate patent protection in other countries, our competitors may produce competing products in those countries based on our technology, which would impair our ability to succeed.

If a third-party successfully asserted an infringement claim against us, we could be forced to obtain an expensive license or pay damages and be prevented from developing, manufacturing or marketing our potential products. We do not have liability insurance for patent infringement.  Patent litigation could consume a substantial portion of our resources and management time. Regardless of a claim's merit, defending a lawsuit is expensive and diverts management's attention from productive business.

Our ability to compete could be diminished if we are unable to protect our trade secrets and proprietary information.

In addition to patents, we rely on a combination of confidentiality, nondisclosure and other contractual provisions, laws protecting trade secrets and security measures to protect our proprietary information. These measures may not provide adequate protection, in which case third-parties could use our proprietary information to diminish our ability to compete. In addition, employees, consultants and others may breach their agreements with us regarding our proprietary information and we may not have adequate remedies for the breach.

The mifepristone patents that we own or license cover the use of mifepristone, not its composition, which may make it more difficult to prevent patent infringement if physicians prescribe another manufacturer's mifepristone or if patients acquire mifepristone from other sources, such as the internet or underground market.  

We own or have exclusively licensed issued U.S. patents covering the use of cortisol modulators to treat a variety of disorders, including TNBC and CRPC. A method of use patent covers only a particular use of a compound, not its composition. Because our patents do not cover the composition of mifepristone, we cannot prevent others from commercializing mifepristone to treat disorders not covered by our method of use patents. The availability of mifepristone for these disorders may enable patients to obtain mifepristone for indications covered by our patents. Although any such "off-label" use would violate our patents, effectively monitoring compliance and enforcing our rights may be difficult and costly. Patients may be able to purchase mifepristone through the internet or underground market. Mifepristone is sold in the United States by Danco Laboratories for the termination of pregnancy. Although distribution is limited to a single dose provided in the physician's office and covered by other restrictions, we cannot be certain that patients with Cushing's syndrome will not be able to obtain mifepristone from this or other sources, should another company receive approval to market mifepristone for another indication.

Risks Related to Our Stock

The market price of our common stock has been and is likely to continue to be subject to wide fluctuations in price that are beyond our control. Opportunities for the sale of shares at any given time may be limited. 

We cannot assure that an active trading market for our common stock will exist at any particular time. Holders of our common stock may not be able to sell shares quickly or at the market price if trading in our common stock is not active. During the 52-week period ended February 23, 2018, our average daily trading volume was approximately 1,464,294 shares and the intra-day sales prices per share of our common stock on The NASDAQ Capital Market ranged from $8.50 to $25.96. As of February 23, 2018, our officers, directors and principal stockholders controlled 15 percent of our common stock. 

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Stock prices, especially those of biotechnology companies, sometimes experience extreme price and volume fluctuations that are unrel ated or disproportionate to these companies' operating performance or prospects. This volatility may significantly reduce the market price of our common stock, regardless of our operating performance. Securities class-action litigation is often instituted against companies following periods of stock market volatility. If instituted against us, such litigation could result in substantial costs and divert management's attention from more productive efforts.

The price of our common stock can fluctuate rapidly and widely in response to a variety of factors, including:

Our stock price may decline if our financial performance does not meet the guidance that we provided to the public, estimates published by research analysts or other investor expectations. 

The guidance we provide as to our expected 2018 revenue is only an estimate of what we believe is realizable at the time we give such guidance. Our actual results may vary materially.  There are inherent difficulties in predicting the amount of Korlym that will be sold. For example, the rate of physician adoption of Korlym is uncertain. We may not meet our financial guidance or other investor expectations for other reasons, including those arising from the risks and uncertainties described in this report and in our other public filings and public statements.  Research analysts have published revenue estimates based on their own analyses. The guidance we provide may be one factor they consider when determining their estimates. Readers of this report should conduct their own research, form their own conclusions and rely on our guidance and the estimates of research analysts at their own discretion. 

Research analysts may not continue to provide or initiate coverage of our common stock or may issue negative reports.

The market for our common stock may be affected by the reports financial analysts publish about us. If one of the analysts covering us downgrades our stock, its price could decline rapidly and significantly. Securities analysts

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covering our common stock may discontin ue coverage.  A lack of research coverage may adversely affect our stock's market price.

Sale of a substantial number of shares of our common stock may cause the price of our common stock to decline. 

Sales of a substantial number of shares of our stock in the public market could reduce its price. As additional shares of our stock become available for resale in the public market, whether by the exercise of stock options by employees or directors or because of an equity financing by us, the supply of our stock will increase, which could cause its price to fall. Substantially all of the shares of our stock are eligible for sale, subject to applicable volume and other resale restrictions.

Our officers, directors and principal stockholders, acting as a group, could significantly influence corporate actions.

As of February 23, 2018, our officers and directors controlled 15 percent of our common stock. Acting together, these stockholders could significantly influence any matter requiring approval by our stockholders, including the election of directors and the approval of mergers or other business combinations. The interests of this group may not always coincide with our interests or the interests of other stockholders and may prevent or delay a change in control. This significant concentration of share ownership may adversely affect the trading price of our common stock because many investors perceive disadvantages to owning stock in companies with controlling stockholders.

Changes in laws and regulations may significantly increase our costs, which could harm our financial results.

New laws and regulations, as well as changes to existing laws and regulations, including statutes and regulations concerning the development, approval, and marketing of medications, the provisions of the PPACA requiring the reporting of aggregate spending related to health care professionals, the provisions of the Sarbanes-Oxley Act of 2002 and rules adopted by the SEC and by The NASDAQ Capital Market have and will likely continue to increase our cost of doing business. Complying with these regulations may increase our selling, general and administrative expenses and divert management's time and attention from revenue-generating activities.

We may fail to comply with our public company obligations, including securities laws and regulations. Such compliance is costly and requires significant management attention.

We are a small company with limited resources. The federal securities laws and regulations, including the corporate governance and other requirements of the Sarbanes-Oxley Act of 2002, impose complex and continually changing regulatory requirements on our operations and reporting. These requirements have increased and will continue to increase our legal compliance costs.

Section 404 of the Sarbanes-Oxley Act of 2002 requires that we evaluate the effectiveness of, and provide a management report with respect to, our internal controls over financial reporting. It also requires that the independent registered public accounting firm auditing our financial statements must attest to and report on the effectiveness of our internal controls over financial reporting. If we are unable to complete the required assessment and report as to the adequacy of our internal control over financial reporting in or if our independent registered public accounting firm is unable to provide us with an unqualified report as to the effectiveness of our internal control over financial reporting, investors could lose confidence in our financial reporting.

Changes in or interpretations of accounting rules and regulations could result in unfavorable accounting charges or require us to change our accounting policies or operating practices.

Accounting methods and policies for business and marketing practices of pharmaceutical companies are subject to continual review, interpretation and guidance from accounting authorities, including the SEC. Although we believe that our accounting practices are consistent with current requirements, changes to accounting methods or policies may require us to reclassify, restate or otherwise change or revise our financial statements. Such changes

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could result in changes to the amounts or characterization of our assets, liabilities, revenues, expenses and income, which could harm our financial position and results of operations and could cause the price of o ur common stock to decline .

Anti-takeover provisions in our charter and bylaws and under Delaware law may make an acquisition of us or a change in our management more expensive or difficult, even if an acquisition or a management change would be beneficial to our stockholders.

Provisions in our charter and bylaws may delay or prevent an acquisition of us or a change in our management. Some of these provisions allow us to issue preferred stock without any vote or further action by the stockholders, require advance notification of stockholder proposals and nominations of candidates for election as directors and prohibit stockholders from acting by written consent. In addition, a supermajority vote of stockholders is required to amend our bylaws. Our bylaws provide that special meetings of the stockholders may be called only by our Chairman, President or the Board of Directors and that the authorized number of directors may be changed only by resolution of the Board of Directors. These provisions may prevent or delay a change in our Board of Directors or our management, which our Board of Directors appoints. In addition, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law. Section 203 may prohibit large stockholders, in particular those owning 15 percent or more of our outstanding voting stock, from merging or combining with us.  These provisions in our charter and bylaws and under Delaware law could reduce the price that investors would be willing to pay for shares of our common stock and result in the market price being lower than it would otherwise be.

ITEM 1B.  UNRESOLVED STAFF COMMENTS

None.

ITEM 2.  PROPERTIES

We lease 23,473 square feet of office space in Menlo Park, California for our corporate facilities. Our current lease extended our occupancy through March 2019.

ITEM 3.  LEGAL PROCEEDINGS

See Note 11 , Commitments and contingencies in our audited financial statements.

ITEM 4.  MINE SAFETY DISCLOSURES

Not applicable.

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PART  II

ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Market Information

Our common stock is traded on The NASDAQ Capital Market under the symbol "CORT." The following table sets forth the high and low intra-day sale prices per share of our common stock on The NASDAQ Capital Market for the periods indicated. These prices represent quotations among dealers without adjustments for retail mark-ups, markdowns or commissions and may not represent prices of actual transactions.

Stockholders of Record and Dividends

As of February 23, 2018, we had 114,830,345 shares of common stock outstanding held by 29 stockholders of record. Because almost all of our shares of common stock are held by brokers, nominees and other institutions on behalf of stockholders, we are unable to estimate the total number of stockholders represented by these record holders. We have never declared or paid cash dividends. We currently intend to retain any future earnings to finance the growth and development of our business and therefore do not anticipate paying cash dividends in the foreseeable future.

Sale of Unregistered Securities

None.

Repurchases of Securities

None.

Market Performance Graph

The graph and the accompanying text below is not "soliciting material," is not deemed filed with the SEC and is not to be incorporated by reference in any filings by us under the Securities Act or the Exchange Act, whether made before or after the date hereof and irrespective of any general incorporation language in such filing.

The rules of the SEC require that we include a graph comparing cumulative stockholder returns on our common stock with the NASDAQ US Benchmark Total Return Index and either a published industry or line-of-business standard index or an index of peer companies selected by us. We have elected to use the NASDAQ Biotechnology Index (consisting of a group of 120 companies in the biotechnology sector, including us) for purposes of the performance comparison that appears below.

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The graph shows the cumulative total stockholder retu rn assuming the investment of $100 and the reinvestment of any dividends and is based on the returns of the component companies weighted according to their market capitalizations as of the end of the period for which returns are indicated. Corcept has neve r paid dividends on its common stock.

The return shown in the graph below is not necessarily indicative of future performance.  We do not make or endorse any predictions as to future stockholder returns.

COMPARISON OF 5 YEAR CUMULATIVE TOTAL RETURN AMONG

CORCEPT THERAPEUTICS,

THE NASDAQ US BENCHMARK TOTAL RETURN ("TR") INDEX

AND THE NASDAQ BIOTECHNOLOGY INDEX

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ITEM 6.  SELECTED FINANCIAL DATA

SELECTED FINANCIAL DATA

(in thousands, except per share data)

The selected financial data set forth below are derived from our audited financial statements. The statement of operations data for the years ended December 31, 2017, 2016 and 2015 and the balance sheet data as of December 31, 2017 and 2016 are derived from our audited financial statements included in this Annual Report. The statement of operations data for the years ended December 31, 2014 and 2013 and the balance sheet data as of December 31, 2015, 2014 and 2013 have been derived from our audited financial statements, which are not included in this Annual Report. Our historical results are not necessarily indicative of our results expected for 2018 or for any other future period. The selected financial data set forth below should be read in conjunction with our financial statements, the related notes and "Management's Discussion and Analysis of Financial Condition and Results of Operations" included elsewhere in this Annual Report.

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ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS O F FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following Management's Discussion and Analysis of Financial Condition and Results of Operations ("MD&A") is intended to help the reader understand our results of operations and financial condition. This MD&A is provided as a supplement to, and should be read in conjunction with, our audited Financial Statements and the accompanying Notes to Financial Statements, Risk Factors and other disclosures included in this Form 10-K. Our Financial Statements have been prepared in accordance with U.S. Generally Accepted Accounting Principles ("GAAP") and are presented in U.S. dollars.

We make statements in this section that are forward-looking statements within the meaning of the federal securities laws. For a complete discussion of such forward-looking statements and the potential risks and uncertainties that may affect their accuracy, see "Forward-Looking Statements" included in "Risk Factors" in this Form 10-K and the "Overview" and "Liquidity and Capital Resources" sections of this MD&A.

Overview

We are engaged in the discovery, development and commercialization of drugs that treat severe metabolic, oncologic and psychiatric disorders by modulating the effects of the hormone cortisol. Since 2012, we have marketed Korlym, a first-generation cortisol modulator, for the treatment of patients with endogenous Cushing's syndrome. We are developing compounds from our portfolio proprietary, selective cortisol modulators for the treatment of a wide range of serious disorders.  

Cushing's Syndrome

Korlym to Treat Patients with Cushing's Syndrome . We sell Korlym in the United States, using experienced sales representatives who target the endocrinologists and other specialists caring for patients with Cushing's syndrome. We also reach patients directly through web-based initiatives and interactions with patient groups. We use one specialty pharmacy and one specialty distributor to distribute Korlym and provide logistical support. To help ensure that no patient is denied access to Korlym for financial reasons, we fund our own patient support programs and donate money to independent charitable foundations that help patients with Cushing's syndrome cover the cost of their care, including the cost of Korlym.

Relacorilant (CORT125134) to Treat Patients with Cushing's Syndrome .  We are conducting a Phase 2 trial of our proprietary, selective cortisol modulator, relacorilant, to treat patients with Cushing's syndrome. This open label trial will enroll approximately 30 patients at sites in the United States and Europe.

Oncology

There is substantial in vitro, in vivo and clinical evidence that cortisol's activity allows certain solid-tumor cancers to resist treatment. In some cancers, cortisol activity promotes tumor growth.

Relacorilant to Treat Patients with Solid Tumors .  We are conducting a Phase 1/2 open label trial of Abraxane in combination with relacorilant to treat solid-tumors. As we identify indications of clinical activity in a particular tumor type, we will further test the combination's efficacy and safety in expansion cohorts of approximately 20 patients.  We began enrolling the first expansion cohort in December 2017, treating patients with metastatic pancreatic cancer.  We continue to explore opening cohorts in patients with other solid tumors.

Cortisol Modulators to Treat Patients with CRPC .  We are conducting an open label Phase 1/2 trial of our proprietary, selective cortisol modulator CORT125281 combined with Xtandi in patients with metastatic CRPC at sites in the United States and Europe.  

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Development of Our Other Selective Cortisol Modula tors

We are conducting a Phase 1 trial of the safety, tolerability and pharmacokinetics of our proprietary, selective cortisol modulator CORT118335.  We plan to advance this compound to Phase 2 as a potential treatment for antipsychotic-induced weight gain and NASH.

Our portfolio of proprietary selective cortisol modulators contains more than 500 compounds.  We plan to continue identifying new compounds and to advance the most promising of them towards the clinic .  

Results of Operations   

Net Product Revenue – Net product revenue is gross product revenue from sales to our customers less deductions for estimated government rebates .

For the year ended December 31, 2017, we recorded $159.2 million in net product revenue, as compared to $81.3 million for the year ended December 31, 2016 and $50.3 million for the year ended December 31, 2015. The increases in net product revenue year over year were primarily driven by increases in our sales volume and price increases.  These price increases represented approximately 16.6 percent and 32.1 percent of the increases in net revenue for the years ended December 31, 2017 and 2016, respectively.

Cost of sales – Cost of sales includes the cost of API, tableting, packaging, personnel, overhead, stability testing and distribution .

Cost of sales was $3.6 million for the year ended December 31, 2017, as compared to $2.1 million in the corresponding period in 2016 and $1.4 million in the corresponding period in 2015. These increases were due to greater sales volumes, partially offset by reductions in our manufacturing costs. For the year ended December 31, 2017, cost of sales was 2.2 percent of our net product revenue, as compared to 2.5 percent in the corresponding period in 2016 and 2.7 percent in the corresponding period in 2015.

Cost of sales declined as a percentage of net product revenue for the years ended December 31, 2017 and 2016 due to reduced manufacturing costs and increases in the price of Korlym.

Research and development expenses  – Research and development expenses include the cost of (1) retaining and compensating development personnel, (2) clinical trials, (3) discovery research and pre-clinical studies, (4) drug product for use in clinical trials and to support regulatory submissions, (5) the development of drug formulations and manufacturing processes and (6) regulatory activities.

Research and development expenses increased to $40.4 million for the year ended December 31, 2017 from $23.8 million in 2016, an increase of 69 .3 percent, primarily due to the clinical advancement of relacorilant and the pre-clinical and clinical development of CORT118335 and CORT125281, including the associated hiring of additional clinical development employees.

Research and development expenses increased to $23.8 million for the year ended December 31, 2016 from $15.4 million in 2015, an increase of 54.6 percent, primarily due to increased spending on the advancement of relacorilant, which entered clinical trials in patients in the second quarter of 2016, and the hiring of additional clinical development employees. 

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Below is a summary of our research and development expenses by major project:

Research and development expenses in 2018 and thereafter will depend on the outcomes of our pre-clinical and clinical trials and our development plans. We expect research and development spending in 2018 to be higher than it was in the corresponding period of 2017 as our programs advance and we begin new ones.

It is difficult to predict the timing and cost of development activities, which are subject to many risks and uncertainties, including inconclusive results, slow patient enrollment, adverse side effects and unforeseen difficulties in the formulation or manufacture of study drugs and their real or perceived lack of efficacy or safety. Clinical development is also subject to extensive government oversight and to regulations that may change in ways we cannot anticipate .

Selling, general and administrative expenses – Selling, general and administrative expenses include (1) compensation of employees, consultants and contractors engaged in commercial and administrative activities, (2) the cost of vendors that support commercial activities and (3) legal and accounting fees .

Selling, general and administrative expenses for the year ended December 31, 2017 increased 38.0 percent to $62.4 million, from $45.2 million for the comparable period in 2016 . This increase was primarily due to the growth of our sales organization, higher performance bonus expense and increased professional services fees.

Selling, general and administrative expenses for the year ended December 31, 2016 increased 22.4 percent to $45.2 million, from $36.9 million for the comparable period in 2015. The increases were driven primarily by increased compensation expense due to additional hiring, performance bonus expense, and commissions related to increased sales.

We expect that selling, general and administrative expenses will be higher in 2018 than in 2017 due to the increased scope of our commercial and clinical activities. Selling, general and administrative activities in 2018 and future years will depend on the cost and scope of our commercial and clinical development efforts . 

See also, "Liquidity and Capital Resources."

Interest and other expense – Interest and other expense for the year ended December 31, 2017 was $49,000, as compared to $2.0 million for the year ended December 31, 2016 and $3.0 million for the year ended December 31, 2015. These amounts consisted of interest expense related to the Biopharma Financing Agreement, largely offset in 2017 by interest income from marketable securities. Because we extinguished our obligations under the Financing Agreement in July 2017, there will be no interest expense under this obligation in 2018.

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Income tax benefit – Income tax benefit for the year ended December 31, 2017 was $76.3 million primarily due to the releas e of a portion of our valuation allowance on our deferred tax assets. The amount of the release was affected by the reduction of the income tax rate applicable to our future income from 35% to 21%. See Note 10 , Income Taxes in our audited financial stateme nts for additional information. We had no income tax benefit for the corresponding periods in 2016 and 2015.

Liquidity and Capital Resources

Until 2015, we incurred operating losses every year. At December 31, 2017, we had an accumulated deficit of $193.1 million. Since 2012, we have relied on revenues from the sale of Korlym and proceeds from the sale of common stock and the now concluded Financing Agreement with Biopharma to fund our operations.

Based on our current plans, which include fully funding our Cushing's syndrome commercial operations, conducting Phase 2 and Phase 3 trials of relacorilant in both Cushing's syndrome and solid tumors, the development of CORT125281 to treat patients with CRPC and CORT118335 to treat patients with antipsychotic-induced weight gain and NASH, we expect to fund our operations without needing to raise additional funds, although we may choose to raise additional funds to finance our strategic priorities.  If we were to raise funds, equity financing could be dilutive to stockholders. Debt financing, if available, could involve restrictive covenants.  Funds raised through collaborations with other companies may require us to relinquish certain rights in our product candidates .

At December 31, 2017, we had cash, cash equivalents and marketable securities of $104.0 million, consisting of cash and cash equivalents of $31.1 million and marketable securities of $72.9 million, compared to cash and cash equivalents of $51.5 million at December 31, 2016.  Net cash provided by operating activities for the years ended December 31, 2017, 2016 and 2015 was $60.9 million, $18.4 million and $3.1 million, respectively. These increases were primarily due to greater sales volumes. Net cash used in investing activities for the year ended December 31, 2017 was $73.5 million, primarily due to purchases of marketable securities, while net cash used in investing activities for the years ended December 31, 2016 and 2015 was $0.2 million and $17,000, respectively, which consisted of purchases of property and equipment.  Net cash provided by stock option exercises was $7.2 million, $7.7 million and $5.2 million during the years ended December 31, 2017, 2016 and 2015, respectively. In addition, we made payments under the Biopharma Financing Agreement of $15.1 million, $14.8 million and $9.2 million during the years ended December 31, 2017, 2016 and 2015, respectively. 

We extinguished our obligations under the Financing Agreement in July 2017 . No further payments are due.

The cash in our bank accounts and our marketable securities could be affected if the financial institution holding them were to fail or be subject to adverse conditions in the financial markets. We have never experienced a loss or lack of access to cash .

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Contractual Obligations and Commer cial Commitments

The following table presents our estimates of obligations under contractual agreements as of December 31, 2017.

We enter into contracts in the normal course of business with CROs for preclinical studies and clinical trials. The contracts are cancellable, with varying provisions regarding termination. If a contract with a specific vendor were to be terminated, we would only be obligated for products and services that we had received as of the effective date of the termination and any applicable cancellation fees.

We have other contractual payment obligations and purchase commitments, the timing of which are contingent on future events, including the initiation and completion of manufacturing projects. In March 2014, we entered into an agreement with PCAS for the manufacture of mifepristone, the API in Korlym, for an initial term of five years, with an automatic extension of one year unless either party gives 12 months' prior written notice of termination. In April 2014, we entered into a manufacturing agreement with Alcami Corporation (formerly known as AAI Pharma Services Corp.) for the manufacture and packaging of Korlym tablets.  This agreement has an initial term of three years, with consecutive automatic extensions of two years each, unless either party gives written notice of termination.  (In the case of Alcami, notice is due 18 months before the end of the applicable term.  For Corcept, notice is due 12 months before the end of the applicable term.)  Neither agreement requires us to make minimum purchases.  Purchase commitments will depend on Corcept's requirements.

Net Operating Loss Carryforwards

See Note 10 , Income Taxes in our audited financial statements.

Off-Balance Sheet Arrangements

None.

Critical Accounting Policies and Estimates

Our financial statements have been prepared in accordance with GAAP, which requires us to make estimates and judgments that affect the amount of assets, liabilities and expenses we report. We base our estimates on historical experience and on other assumptions we believe to be reasonable. Actual results may differ from our estimates.

Net Product Revenue

We primarily sell Korlym directly to patients, using a single specialty pharmacy. We recognize revenue upon the delivery of Korlym if (i) there is persuasive evidence that an arrangement exists with the customer, (ii) collectability is reasonably assured and (iii) the sales price is fixed or determinable. In order to conclude that the price is fixed or determinable, we must be able to (i) calculate gross product revenue from a sale and (ii) reasonably

35

estimate the associated net revenue.  Confirmation of coverage by the patient's private or government insurance plan or by our own patient assistance program or a third-party charity is a prerequisite for selling Korlym to a patient. We provide Korlym at no cost to patients without insurance who do not qualify for charitable support . (See discussion set forth in Part IV – Item 15(1) – Financial Statements, Notes to Financial Statements, Note 2, Significant Agreements – Commercial Agreemen ts . ). It is our policy that no patient is denied Korlym for financial reasons.

Through August 9, 2017 our exclusive specialty pharmacy was Dohmen Life Science Services ("Dohmen").  On August 10, 2017, Optime Care, Inc. ("Optime") became our exclusive specialty pharmacy.

We donate cash to charities that help patients pay for the treatment of Cushing's syndrome, including the cost of medical and non-medical therapy unrelated to Korlym. We do not include payments we receive from these organizations in revenue .

We calculate gross product revenues based on the price we charge our customers. We estimate net product revenues by deducting from gross product revenues (a) estimated government rebates and chargebacks, (b) estimated costs of our patient co-pay assistance program, (c) discounts for prompt payment and (d) reserves for expected product returns.  We record estimates for these deductions at the time we recognize the gross revenue and revise them as new information becomes available .

Government Rebates

Korlym is eligible for purchase by or qualifies for partial or full reimbursement from Medicaid and other government programs. We estimate any government rebate amounts by applying the discount rates applicable to each government-funded program against our sales to patients covered by such programs .

Allowances for Patient Assistance Program

It is our policy that no patient be denied Korlym due to inability to pay. We provide financial assistance to eligible patients whose insurance policies require them to pay high deductibles and co-payments and deduct the amount of such assistance from these sales from gross revenue. We determine the amount of such assistance by applying our program guidelines to all eligible sales in the period .

Sales Returns

We deduct from each period's gross revenue the amount of Korlym we estimate will be returned. When estimating returns, we analyze quantitative and qualitative information including, but not limited to, historical return rates, the amount of product in the distribution channel, the expiration date of the product, current and projected product demand, the introduction of competing products that may erode demand, and broad economic and industry-wide indicators. If we cannot reasonably estimate product returns with respect to a particular sale, we defer recognition of revenue from that sale until we can make a reasonable estimate.

Inventory and Cost of Sales

Regulatory approval of product candidates is uncertain. Because product manufactured prior to regulatory approval may not be sold unless regulatory approval is obtained, we treat manufacturing costs for product candidates as research and development expenses at the time such costs are incurred. We capitalize into inventory manufacturing any costs related to an approved product that are incurred after regulatory approval.

We value inventory at the lower of cost or net realizable value. We determine the cost of inventory using the specific identification method, which approximates a first-in, first-out basis. We write down inventory that has become obsolete or has a cost basis in excess of its expected net realizable value. Any expired inventory is disposed of and the related costs are recognized as cost of sales in the statement of comprehensive income (loss) in that period.

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Cost of sales includes the cost of product (i.e., the cost of manufacturing Korlym, including material, third-party manufacturing costs and indirect personnel and other overhead costs) based on units for which revenue is recognized in the current period, as we ll as costs of stability testing, logistics and distribution.

Inventory amounts that are not expected to be consumed within 12 months following the balance sheet date are classified as strategic inventory, a noncurrent asset .

Accruals of Research and Development Costs

Research and development expenses consist of direct expenses, such as the cost of discovery research, pre-clinical studies, and clinical trials relating to our portfolio of proprietary, selective cortisol modulators, manufacturing development, preparations for submissions to the FDA or other regulatory agencies and related overhead expenses. We expense nonrefundable payments and the cost of technologies and materials used in research and development as they are incurred .

We base our cost accruals for research, preclinical activities, and clinical trials on estimates of work completed under service agreements, milestones achieved, patient enrollment and past experience with similar contracts. Our estimates of work completed and associated cost accruals include our assessments of information from third-party vendors and the overall status of clinical trial and other development and administrative activities . 

Stock-based compensation

We account for stock-based compensation related to option grants under the fair value method, based on the value of the award at the grant date, using the Black-Scholes option valuation model. We recognize this expense over the requisite vesting period, net of estimated forfeitures . If actual forfeitures differ from our estimates, we adjust stock-based compensation expense accordingly.

We recognize the expense of options granted to non-employees based on the fair value-based measurement of the option grants at the time of vesting .

Debt obligation

The accounting for the Financing Agreement with Biopharma required us to make certain estimates and assumptions, including the timing of royalty payments due to Biopharma, the expected rate of return to Biopharma, the split between current and long-term portions of the obligation, and the accretion of interest expense. Actual payment amounts were based on Korlym receipts during the applicable quarter.   We made our final payment under the Financing Agreement in July 2017.

Income Taxes

We account for income taxes in accordance with ASC 740,  Income Taxes  ("ASC 740"), which requires recognition of deferred tax assets and liabilities for the expected tax consequences of our future financial and operating activities. Under ASC 740, we determine deferred tax assets and liabilities based on the temporary difference between the financial statement and tax bases of assets and liabilities using the tax rates in effect for the year in which we expect such differences to reverse.  If we determine that it is more likely than not that we will not generate sufficient taxable income to realize the value of some or all of our deferred tax assets (net of our deferred tax liabilities), we establish a valuation allowance offsetting the amount we do not expect to realize.  We perform this analysis each reporting period and reduce our measurement of deferred taxes, if the likelihood we will realize them becomes uncertain .

In deciding whether a valuation allowance is necessary, GAAP requires us to give significant weight to objective evidence. It is difficult to conclude that sufficient taxable income will be generated when there is significant evidence – such as Corcept's substantial cumulative losses – that future taxable income is not assured. Because forecasts of taxable income are inherently uncertain and not objectively verifiable, our cumulative losses must weigh heavily in our analysis.

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We are also required to evaluate and quantify other sources of taxable income, such as the possible reversal of future deferred tax liabilities, should any arise, and the implementation of tax planning strategies. Evaluating and quantifying these amounts is difficult and involves significant judgment, based on all of the available evidence and assumptions about our future activities.

Until the fourth quarter of 2017, we maintained a valuation allowance on the entire value of our deferred taxes and did not report these amounts in our balance sheet.

We also account for uncertain tax positions in accordance with ASC 740, which requires us to adjust our financial statements to reflect only those tax positions that are more-likely-than-not to be sustained upon review by federal or state examiners. We may recognize a tax benefit only if it is more likely than not the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such positions are then measured based on the largest benefit that has a greater than 50% likelihood of being realized upon settlement. Our policy is to report interest and penalties related to unrecognized tax benefits as income tax expenses. 

On December 22, 2017 President Donald Trump signed into U.S. law the Tax Cuts and Jobs Act of 2017 ("Tax Act"). The Tax Act introduced a broad range of tax reform measures that significantly change the federal income tax regime. Among other things, the Tax Act reduces the corporate income tax rate from 35% to 21% effective for tax years including or commencing on January 1, 2018, repeals corporate alternative minimum tax, limits various business deductions, modifies the maximum deduction of net operating loss with no carryback but indefinite carryforward provision, expands the deduction limit applicable to compensation paid to top executives of publicly traded companies, and includes various international tax related provisions. In accordance with ASC 740, the companies are required to recognize the effect of tax law changes in the period of enactment even though the effective date for most provisions of Tax Act is for tax years beginning after December 31, 2017, or in the case of certain other provisions of the law, January 1, 2018.

Given the significance of the legislation, the U.S. Securities and Exchange Commission staff issued Staff Accounting Bulletin ("SAB") No. 118 (SAB 118), which allows registrants to record provisional amounts during a one year "measurement period". However, the measurement period is deemed to have ended earlier when the registrant has obtained, prepared, and analyzed the information necessary to finalize its accounting. During the measurement period, impacts of the law are expected to be recorded at the time a reasonable estimate for all or a portion of the effects can be made, and provisional amounts can be recognized and adjusted as information becomes available, prepared, or analyzed. Refer to Note 10, Income Taxes in our audited financial statements for further details . 

Recently Issued Accounting Pronouncements

See Note 1, Basis of Presentation and Summary of Significant Accounting Policies in our audited financial statements.

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Quantitative and Qualitative Disclosures About Market Risk 

The primary objective of our investment activities is to preserve principal. As of December 31, 2017, the fair value of our cash and cash equivalents and marketable securities was $104.0 million.  Our marketable securities consisted primarily of commercial paper, corporate bonds, U.S. Treasury securities and a money market fund invested in short-term U.S. Treasury securities maintained at a major U.S. financial institution. To minimize our exposure to interest rate and other market risks, we have limited the maturities of our investments to less than three years, with the duration of our portfolio not to exceed two years. Due to the short-term nature and high liquidity of these instruments, an increase or decrease in market interest rates by 25 basis points would not have a material impact on the total value of our portfolio as of December 31, 2017.

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ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The financial statements required by this item are set forth beginning at page F-1 and are incorporated herein by reference. 

ITEM 9.  CHANGES IN AND DISAGREE MENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A.  CONTROLS AND PROCEDURES 

(a) Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in the reports we file with the SEC is recorded, processed, summarized and filed within the time periods specified in the SEC's rules and forms and that such information is accumulated and discussed with our management, including our Chief Executive Officer and Chief Financial Officer, so as to allow timely decisions regarding disclosure. Management recognizes that controls and procedures, no matter how well designed and operated, can only provide reasonable, not absolute, assurance the desired control objectives will be met.  In reaching a reasonable level of assurance, management has weighed the cost of contemplated controls against their intended benefits. The design of any system of controls is based on management's assumptions about the likelihood of future events.  We cannot assure you that our controls will achieve their stated goals under all possible conditions.  Changes in future conditions may render our controls inadequate or may cause our degree of compliance with them to deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

As of December 31, 2017, our Chief Executive Officer and Chief Financial Officer evaluated our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act). Based on their evaluation, they concluded that they are effective.

There were no changes in our internal controls over financial reporting during the quarter ended December 31, 2017 that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

(b) Management's Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Our internal control system is designed to provide reasonable assurance regarding the preparation and fair presentation of externally-reported financial statements in accordance with GAAP. As discussed in ITEM 9A(a) above, internal control systems, no matter how well designed, have inherent limitations and can provide only reasonable assurance that their objectives have been met.

Our management, including our Chief Executive Officer and Chief Financial Officer, have evaluated the effectiveness of our internal control over financial reporting, based on criteria established in Internal Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in 2013. Based on this evaluation, management concluded that, as of December 31, 2017, our internal control over financial reporting was effective.

Our independent registered public accounting firm has issued an attestation report on our internal control over financial reporting.  It is set forth below.

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(c) Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors of Corcept Therapeutics Incorporated

Opinion on Internal Control over Financial Reporting

We have audited Corcept Therapeutics, Inc.'s internal control over financial reporting as of December 31, 2017, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, Corcept Therapeutics, Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"), the consolidated balance sheets as of December 31, 2017 and December 31, 2016, the related consolidated statements of operations, comprehensive income (loss), stockholders' equity (deficit) and cash flows for each of the three years in the period ended December 31, 2017, and the related notes of the Company and our report dated February 28, 2018 expressed an unqualified opinion thereon.

Basis for Opinion

The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management's Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable

40

assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Ernst & Young LLP

Redwood City, California

February 28, 2018

ITEM 9B.  OTHER INFORMATION

None.

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PART  III

Certain information required by Part III is omitted from this Form 10-K because we expect to file with the U.S. Securities and Exchange Commission, not later than 120 days after the end of the fiscal year covered by this Annual Report on Form 10-K, a definitive proxy statement ("Proxy Statement"), pursuant to Regulation 14A in connection with the solicitation of proxies for our 2018 Annual Meeting of Stockholders, and certain information included therein is incorporated herein by reference.

ITEM 10.  DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

The information required by this Item will be included in the Proxy Statement and is incorporated herein by reference.

ITEM 11. EXECUTIVE COMPENSATION

Compensation Discussion and Analysis

The information required by this Item will be included in the Proxy Statement and is incorporated herein by reference.

ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information required by this Item will be included in the Proxy Statement and is incorporated herein by reference.

ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required by this Item will be included in the Proxy Statement and is incorporated herein by reference.

ITEM 14.    PRINCIPAL ACCOUNTING FEES AND SERVICES

The information required by this Item will be included in the Proxy Statement and is incorporated herein by reference.

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PAR T IV

ITEM 15.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES

The following documents are filed as part of this Form 10-K

(1) Financial Statements:

(2) Financial Statement Schedules:

All schedules have been omitted because the information required to be set forth therein is not applicable or is shown in the financial statements or notes thereto.

(3) Exhibits:

Item 601 of Regulation S-K requires the exhibits listed below. Each management contract or compensatory plan or arrangement required to be filed as an exhibit to this Form 10-K has been identified.

(A)    EXHIBITS

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44

45

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SIGNA TURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints Joseph K. Belanoff and G. Charles Robb, and each of them acting individually, as his or her true and lawful attorneys-in-fact and agents, each with full power of substitution, for him or her in any and all capacities, to sign any and all amendments to this report on Form 10-K and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, with full power of each to act alone, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully for all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Exchange Act, this Annual Report on Form 10-K has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated:

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CORCEPT THERAPEUTICS INCORPORATED

INDEX TO FINANCIAL STATEMENTS

F-1

REPORT OF INDEPENDENT REGIS TERED PUBLIC ACCOUNTING FIRM

To the Stockholders and Board of Directors of Corcept Therapeutics Incorporated

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Corcept Therapeutics, Inc. (the Company) as of December 31, 2017 and December 31, 2016, the related consolidated statements of operations, comprehensive income (loss), stockholders' equity (deficit), and cash flows for each of the three years in the period ended December 31, 2017, and the related notes (collectively referred to as the "consolidated financial statements"). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and December 31, 2016, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017, in conformity with U.S. generally accepted accounting principles.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31 2017, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated February 28, 2018 expressed an unqualified opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures include examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

/s/ Ernst & Young LLP

We have served as the Company's auditor since 2001.

Redwood City, California

February 28, 2018 

F-2

CORCEPT THERAPEUTICS INCORPORATED

BALANCE SHEETS

(in thousands, except per share amounts)

The accompanying notes are an integral part of these financial statements.

F-3

CORCEPT THERAPEUTICS INCORPORATED

STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(in thousands, except per share amounts)

The accompanying notes are an integral part of these financial statements.

F-4

CORCEPT THERAPEUTICS INCORPORATED

STATEMENTS OF STOCKHOLDERS EQUITY (DEFICIT)

(in thousands)

The accompanying notes are an integral part of these financial statements

F-5

CORCEPT THERAPEUTICS INCORPORATED

STATEMENTS OF CASH FLOWS

(in thousands)