Forest Laboratories, Inc. and Gedeon Richter Plc Announce Results from a Phase II Study of Cariprazine for the Treatment o

NEW YORK & BUDAPEST, Hungary--(BUSINESS WIRE)-- Forest Laboratories, Inc. (NYSE: FRX) and Gedeon Richter Plc. today announced preliminary top-line results from an 8-week Phase II clinical trial of the novel, investigational antipsychotic agent cariprazine for the treatment of bipolar depression. Cariprazine is currently undergoing Phase III trials for separate indications of schizophrenia and bipolar mania.

A total of 233 patients were randomized to enter one of two active (low dose or high dose) treatment arms or placebo. The primary endpoint was the Montgomery Asberg Depression Rating Scale (MADRS) score. The study was designed to be exploratory. Although the overall difference observed between the drug-treated and placebo-treated groups was not statistically significant, over the course of the trial there was evidence of a clinically relevant treatment effect in the high-dose arm of the study by comparison to placebo. In addition, the tolerability results for cariprazine support further investigation in this patient population. Approximately 9% of patients discontinued the study early due to adverse events in the high dose study arm compared to 3% in the placebo arm. The companies are considering conducting an additional Phase II dose-response trial examining a wider range of doses.

About the Study

This was a randomized double-blind, placebo-controlled, flexible-dose group study that evaluated the efficacy, safety and tolerability of once-daily dosed cariprazine in patients with bipolar depression. Following a washout period of no antipsychotic therapy for at least one week, a total of 233 patients, all from U.S. clinical sites, between ages 18 and 65 years old were randomized to one of three treatment arms (either 0.25 - 0.75 mg per day of cariprazine or 1.5 - 3.0 mg per day of cariprazine) or placebo. The primary endpoint was defined as a change from baseline to Week 8 in the MADRS total score compared to placebo treatment.

About Cariprazine

Cariprazine, discovered by researchers at Gedeon Richter, is an orally active, potent D3/D2 partial agonist that preferentially binds to D3 receptors. In addition, cariprazine has a relatively low potency at other receptor sites, such as 5-HT2C, histamine H1, muscarinic and adrenergic receptor sites, which have been associated with adverse events. Cariprazine demonstrated a reduction in symptoms in previously reported Phase II clinical trials for schizophrenia and bipolar mania.

About Gedeon Richter Plc.

Gedeon Richter, ( headquartered in Budapest/Hungary, is a major pharmaceutical company in Hungary and one of the largest in Central Eastern Europe, with consolidated sales of approximately 1 billion € (1,3 billion USD) and 3 billion € (4 billion USD) market capitalization in 2009. Gedeon Richter plays the role of a regional multinational company in Central Eastern Europe and in the CIS and has a growing presence via its strategic partners in the US and through its commercial subsidiaries in key EU countries. The product portfolio of the company covers almost all important therapeutic areas, such as cardiovascular, central nervous system, gynecology, etc. The company has the largest R&D unit in Central Eastern Europe. Original research activity focuses exclusively on CNS disorders with main clinical targets being schizophrenia, anxiety, chronic pain and depression. With its widely acknowledged steroid chemistry expertise the company is a significant player in the female healthcare field worldwide.

About Forest Laboratories

Forest Laboratories (NYSE: FRX) is a U.S.-based pharmaceutical company with a long track record of building partnerships and developing and marketing products that make a positive difference in people’s lives. In addition to its well-established franchises in therapeutic areas of the central nervous and cardiovascular systems, Forest’s current pipeline includes product candidates in all stages of development and across a wide range of therapeutic areas. The Company is headquartered in New York, NY. To learn more about Forest Laboratories, visit

Except for the historical information contained herein, this release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements involve a number of risks and uncertainties, including the difficulty of predicting FDA approvals, the acceptance and demand for new pharmaceutical products, the impact of competitive products and pricing, the timely development and launch of new products, and the risk factors listed from time to time in Forest Laboratories’ Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and any subsequent SEC filings.


Forest Laboratories, Inc.
Frank J. Murdolo, 212-224-6714
Vice President - Investor Relations
[email protected]

KEYWORDS:   United States  North America  New York

INDUSTRY KEYWORDS:   Health  Biotechnology  Clinical Trials  Mental Health  Pharmaceutical