"We are delighted with the results of the REPRIEVE study presented today at the ASCP annual meeting," said
REPRIEVE Study Results Summary
The REPRIEVE study was a randomized, double-blind, placebo-controlled study to evaluate prevention of relapse in adult patients with schizophrenia receiving either flexible dose Fanapt® or placebo. Study subjects were adults with schizophrenia titrated up to 12 mg/day given as 6 mg BID with open-label Fanapt® and then stabilized for a further 14-24 weeks with a flexible dose Fanapt® regimen (range between 8-24 mg/day daily dose given BID) as per investigator judgment. Subjects who remained clinically stable for at least 12 weeks entered the "Relapse Prevention" phase and were randomized 1:1 to either continue on the same flexible dose regimen of Fanapt® or to withdraw from Fanapt® to matched placebo in a double-blinded fashion. Subjects were followed for up to 26 weeks and were withdrawn upon showing signs of relapse or impending relapse. A predefined unblinded interim analysis was conducted after 68 relapse or impending relapse events were observed. The primary outcome was time-to-relapse or impending relapse using the interim analysis population.
Of the 587 patients entering the "Stabilization" phase, 195 (33%) met the criteria for the double-blind Relapse Prevention phase, with 99 subjects randomized to continue with Fanapt® and 96 to switch to placebo. The study was stopped early after 68 events were observed and confirmed the hypothesis that Fanapt® was more effective than placebo in relapse preventions (log rank test: P < .0001), with a Cox regression hazard ratio estimate of 4.7 (95% confidence interval: 2.7-8.3) favoring Fanapt®. The percentage of Fanapt® patients remaining relapse free at the end of the double-blind Relapse Prevention phase was of 79.6% (the Kaplan-Meier estimate (KM estimate)) compared to 36.6% for placebo-treated patients. The mean time to relapse based on KM estimates was 71 days for placebo and 139 days for Fanapt® subjects. The most common treatment-emergent adverse events (TEAEs) (>= 5%) suspected to be related to Fanapt® in the stabilization phase were dizziness, somnolence (or sleepiness), and dry mouth. There were no Fanapt® treatment-related TEAEs with a frequency >2% and higher than placebo in the double-blind Relapse Prevention phase.
About Fanapt®
Fanapt® is an atypical antipsychotic agent indicated for the treatment of schizophrenia in adults. In choosing among treatments, prescribers should consider the ability of Fanapt® to prolong the QT interval and the use of other drugs first. Prescribers should also consider the need to titrate Fanapt® slowly to avoid orthostatic hypotension, which may lead to delayed effectiveness compared to some other drugs that do not require similar titration.
IMPORTANT WARNINGS and PRECAUTIONS: increased mortality in elderly patients with dementia-related psychosis; QT prolongation; neuroleptic malignant syndrome; tardive dyskinesia; hyperglycemia and diabetes mellitus; weight gain; seizures; orthostatic hypotension and syncope; leukopenia, neutropenia and agranulocytosis; hyperprolactinemia; body temperature regulation; dysphagia; suicide; priapism; potential for cognitive and motor impairment.
COMMONLY OBSERVED ADVERSE REACTIONS of FANAPT® (>=5% and 2x placebo): dizziness, dry mouth, fatigue, nasal congestion, orthostatic hypotension, somnolence, tachycardia, and weight increased.
For full US Prescribing Information, including Boxed Warnings and Important Safety Information, visit our Web site at www.fanapt.com.
About
Corporate Contact:
Senior Vice President and Chief Financial Officer
Vanda Pharmaceuticals Inc.
(202) 734-3428
jim.kelly@vandapharma.com
Media Contact:
Laney Landsman
Vice President
Makovsky
(212) 508-9643
llandsman@makovsky.com
CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS
Various statements in this release are "forward-looking statements" under the securities laws. Forward-looking statements are based upon current expectations that involve risks, changes in circumstances, assumptions and uncertainties. Important factors that could cause actual results to differ materially from those reflected in Vanda's forward-looking statements include, among others, Vanda's assumptions regarding the long-term effects of Fanapt®, Vanda's planned sNDA filing and the
All written and verbal forward-looking statements attributable to Vanda or any person acting on its behalf are expressly qualified in their entirety by the cautionary statements contained or referred to herein. Vanda cautions investors not to rely too heavily on the forward-looking statements Vanda makes or that are made on its behalf. The information in this release is provided only as of the date of this release, and Vanda undertakes no obligation, and specifically declines any obligation, to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise.
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