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Press Release

Intercept Pharmaceuticals Files New Drug Submission to Health Canada for Marketing Approval of Obeticholic Acid for the Treatment of Patients with Primary Biliary Cholangitis


Posted on: 19 Sep 16
  • New Drug Submission filed to Health Canada for obeticholic acid for PBC
  • Submission granted priority review
  • If approved, obeticholic acid would represent first new treatment option for PBC in 20 years                         

NEW YORK, Sept. 19, 2016 (GLOBE NEWSWIRE) -- Intercept Pharmaceuticals, Inc. (Nasdaq:ICPT), a biopharmaceutical company focused on the development and commercialization of novel therapeutics to treat non-viral, progressive liver diseases, today announced the filing of a New Drug Submission to Health Canada, seeking Canadian marketing approval for obeticholic acid (OCA) for the treatment of primary biliary cholangitis, also referred to as primary biliary cirrhosis (PBC), when used in combination with ursodeoxycholic acid (UDCA) in adults with an inadequate response to UDCA or as monotherapy in adults unable to tolerate UDCA.

"Our submission to Health Canada not only reflects a significant milestone for Intercept, but more importantly for the estimated 8,000 Canadians living with PBC, many of whom remain at risk of liver failure and need for transplantation despite the current standard of care,” said Dr. Mark Pruzanski, President & CEO of Intercept Pharmaceuticals. “We are pleased with Health Canada’s decision to grant OCA priority review status, recognizing the high unmet medical need for new therapies in PBC and the potential of OCA to offer meaningful benefits in improving outcomes for patients impacted by the disease.”

PBC is a rare, autoimmune cholestatic liver disease that puts patients at risk for life-threatening complications. It is primarily a disease of women, affecting approximately one in 1,000 women over the age of 40. If left untreated, survival of patients with PBC is significantly worse than that of the general population.

Canadian researchers have played a significant role in advancing the clinical research and management of PBC. With seven clinical trial sites across the country participating in the OCA PBC clinical development program, Canadian clinicians, patients and health institutions have made a meaningful contribution to the development of OCA. 

“Both patients and doctors have been looking forward to new avenues of treatment for PBC patients at risk of disease progression. We have made great inroads in understanding what may cause PBC but this has not really impacted patient care - for a rare disease there are too many patients with PBC waiting for liver transplantation,” said Dr. Andrew Mason, Director of Research for the Division of Gastroenterology and Hepatology at the University of Alberta. “In clinical trials, OCA made a significant and clinically meaningful impact on lab tests used to monitor biliary disease, such as alkaline phosphatase and bilirubin.  We are hopeful that OCA will be available soon for our patients with PBC.”

About Obeticholic Acid (OCA)
Obeticholic acid is an agonist of the farnesoid X receptor (FXR), a nuclear receptor expressed in the liver and intestine.

The Canadian New Drug Submission includes a total of 1,507 subjects exposed to at least a single dose of obeticholic acid. Of these subjects, 432 were patients with PBC, with 290 treated for at least six months and 232 treated for at least one year. The key efficacy and safety data are derived from three randomized double-blind, placebo-controlled clinical trials in patients with PBC evaluating the effect of obeticholic acid on alkaline phosphatase (ALP) and bilirubin. All three trials met their primary endpoints with high statistical significance and improvements were seen in secondary endpoints including markers of liver injury, immunity, inflammation and apoptosis. Pruritus (itching), a common symptom of PBC that is unrelated to disease stage or outcomes, was the most common side effect observed in obeticholic acid-treated patients.

The regulatory submission is also supported by two clinical databases that include more than 10,000 patients from the Global PBC Study Group and UK-PBC Group, both independently confirming that achieving lower ALP and/or bilirubin levels is significantly correlated with increased transplant-free survival.

In Canada, obeticholic acid is an investigational agent and has not been approved by Health Canada. In May 2016, the U.S. Food and Drug Administration (FDA) granted accelerated approval to obeticholic acid for the treatment of PBC under the brand name Ocaliva™ based on a reduction in ALP.  An improvement in survival or disease-related symptoms has not been established.  Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials. A marketing authorization application for obeticholic acid for the treatment of PBC was accepted by the European Medicines Authority (EMA) in June 2015 and is currently under review. The brand name Ocaliva has been provisionally approved by the EMA. 

U.S. IMPORTANT SAFETY INFORMATION
Contraindications
Ocaliva is contraindicated in patients with complete biliary obstruction.

Warnings and Precautions
Liver-Related Adverse Reactions
In two 3-month, placebo-controlled clinical trials, a dose-response relationship was observed for the occurrence of liver-related adverse reactions including jaundice, ascites and primary biliary cholangitis flare with dosages of Ocaliva of 10 mg once daily to 50 mg once daily (up to 5-times the highest recommended dosage), as early as one month after starting treatment with Ocaliva.

In a pooled analysis of three placebo-controlled trials in patients with PBC, the exposure-adjusted incidence rates for all serious and otherwise clinically significant liver-related adverse reactions, and isolated elevations in liver biochemical tests, per 100 patient exposure years (PEY) were: 5.2 in the Ocaliva 10 mg group (highest recommended dosage), 19.8 in the Ocaliva 25 mg group (2.5 times the highest recommended dosage) and 54.5 in the Ocaliva 50 mg group (5 times the highest recommended dosage) compared to 2.4 in the placebo group.

Monitor patients during treatment with Ocaliva for elevations in liver biochemical tests and for the development of liver-related adverse reactions. Weigh the potential risks against the benefits of continuing treatment with Ocaliva in patients who have experienced clinically significant liver-related adverse reactions. The maximum recommended dosage of Ocaliva is 10 mg once daily. Adjust the dosage for patients with moderate or severe hepatic impairment.

Discontinue Ocaliva in patients who develop complete biliary obstruction.

Severe Pruritus
Severe pruritus was reported in 23% of patients in the Ocaliva 10 mg arm, 19% of patients in the Ocaliva titration arm and 7% of patients in the placebo arm in the POISE trial, a 12-month double-blind randomized controlled trial of 216 patients. Severe pruritus was defined as intense or widespread itching, interfering with activities of daily living, or causing severe sleep disturbance, or intolerable discomfort, and typically requiring medical interventions. In the subgroup of patients in the Ocaliva titration arm who increased their dosage from 5 mg once daily to 10 mg once daily after 6 months of treatment (n=33), the incidence of severe pruritus was 0% from months 0 to 6 and 15% from months 6 to 12. The median time to onset of severe pruritus was 11, 158 and 75 days for patients in the Ocaliva 10 mg, Ocaliva titration and placebo arms, respectively.

Management strategies include the addition of bile acid resins or antihistamines, Ocaliva dosage reduction and/or temporary interruption of Ocaliva dosing.

Reduction in HDL-C
Patients with PBC generally exhibit hyperlipidemia characterized by a significant elevation in total cholesterol primarily due to increased levels of high density lipoprotein-cholesterol (HDL‑C). In the POISE trial, dose-dependent reductions from baseline in mean HDL-C levels were observed at 2 weeks in Ocaliva-treated patients, 20% and 9% in the 10 mg and titration arms, respectively, compared to 2% in the placebo arm. At month 12, the reduction from baseline in mean HDL-C level was 19% in the Ocaliva 10 mg arm, 12% in the Ocaliva titration arm and 2% in the placebo arm. Nine patients in the Ocaliva 10 mg arm and six patients in the Ocaliva titration arm, versus three patients in the placebo arm, had reductions in HDL-C to less than 40 mg/dL. 

Monitor patients for changes in serum lipid levels during treatment. For patients who do not respond to Ocaliva after one year at the highest recommended dosage that can be tolerated (maximum of 10 mg once daily), and who experience a reduction in HDL-C, weigh the potential risks against the benefits of continuing treatment.

Adverse Reactions
The most common adverse reactions from subjects taking Ocaliva (≥5%) were pruritus, fatigue, abdominal pain and discomfort, rash, oropharyngeal pain, dizziness, constipation, arthralgia, thyroid function abnormality and eczema.

Drug Interaction
Bile Acid Binding Resins
Bile acid binding resins such as cholestyramine, colestipol or colesevelam absorb and reduce bile acid absorption and may reduce the absorption, systemic exposure and efficacy of Ocaliva. If taking bile acid binding resins, take Ocaliva at least 4 hours before or 4 hours after (or at as great an interval as possible) taking a bile acid binding resin.

Please see Full Prescribing Information for Ocaliva (obeticholic acid) 5 mg and 10 mg tablets.

About Intercept
Intercept is a biopharmaceutical company focused on the development and commercialization of novel therapeutics to treat non-viral, progressive liver diseases, including primary biliary cholangitis (PBC), nonalcoholic steatohepatitis (NASH), primary sclerosing cholangitis (PSC) and biliary atresia. Founded in 2002 in New York, Intercept now has operations in the United States, Europe and Canada. For more information about Intercept, please visit www.interceptpharma.com.

About Intercept Pharma Canada Inc.
Intercept Pharma Canada Inc. is the Canadian subsidiary of Intercept Pharmaceuticals, Inc., founded in 2015 and based in Mississauga, Ontario. Intercept is a proud member of the Canadian biopharmaceutical community.

Safe Harbor Statements 
This press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, including, but not limited to, statements regarding the clinical relevance and utility of ALP and the surrogate endpoint used in the Phase 3 POISE trial to predict clinical outcomes, the acceptance of Ocaliva™ (obeticholic acid) as a treatment for PBC by healthcare providers, patients and payors, the potential regulatory approval and launch of OCA in PBC in Canada and other jurisdictions outside the United States and the timelines related thereto, the availability of OCA for the treatment of PBC in Canada and other jurisdictions outside the United States and timelines related thereto, the anticipated prevalence of and other epidemiological estimates and market data related to PBC, the continued development of OCA and Intercept's other product candidates, and our strategic directives under the caption "About Intercept." These "forward-looking statements" are based on management's current expectations of future events and are subject to a number of important risks and uncertainties that could cause actual results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to: Intercept's ability to successfully commercialize Ocaliva in PBC, and Intercept's ability to maintain its regulatory approval of Ocaliva in the United States for Ocaliva in PBC; the initiation, cost, timing, progress and results of Intercept's development activities, preclinical studies and clinical trials; the timing of and Intercept's ability to obtain and maintain regulatory approval of OCA in PBC in countries outside the United States and in indications other than PBC and any other product candidates it may develop such as INT-767; conditions that may be imposed by regulatory authorities on Intercept's marketing approvals for its product candidates such as the need for clinical outcomes data (and not just results based on achievement of a surrogate endpoint), and any related restrictions, limitations, and/or warnings in the label of any approved product candidates; Intercept's plans to research, develop and commercialize its product candidates; Intercept's ability to obtain and maintain intellectual property protection for its product candidates; Intercept's ability to successfully commercialize OCA in indications other than PBC and its other product candidates; the size and growth of the markets for Intercept's product candidates and its ability to serve those markets; the rate and degree of market acceptance of any of Intercept's products, which may be affected by the reimbursement that it may receive for its products from payors; the success of competing drugs that are or become available; the election by Intercept's collaborators to pursue research, development and commercialization activities; Intercept's ability to attract collaborators with development, regulatory and commercialization expertise; regulatory developments in the United States and other countries; the performance of third-party suppliers and manufacturers; Intercept's need for and ability to obtain additional financing; Intercept's estimates regarding expenses, future revenues and capital requirements and the accuracy thereof; Intercept's use of cash, short-term investments and the proceeds from the offering; Intercept's ability to attract and retain key scientific or management personnel; and other factors discussed under the heading "Risk Factors" contained in our annual report on Form 10-K for the year ended December 31, 2015 filed on February 29, 2016 as well as any updates to these risk factors filed from time to time in our other filings with the Securities and Exchange Commission. All information in this press release is as of the date of the release, and Intercept undertakes no duty to update this information unless required by law.

GlobeNewswire
globenewswire.com

Last updated on: 20/09/2016

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