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A Study on the Safety and Efficacy of Topiramate in the Treatment of Patients With Bipolar I Disorder

Bipolar Disorder Clinical Trial

Official title:
A Randomized, Double-Blind, Multicenter, Placebo-Controlled 12-Week Study of the Safety and Efficacy of Topiramate in Patients With Acute Manic or Mixed Episodes of Bipolar I Disorder With an Optional Open-Label Extension

Clinical Trial Summary

The primary purpose of this study is to evaluate the safety and efficacy of topiramate compared with placebo in the treatment of acute manic or mixed episodes in patients with Bipolar I Disorder.

Clinical Trial Description

This is a randomized, double-blind, placebo-controlled study to evaluate the safety and efficacy of topiramate (400 milligrams/day) compared with placebo in the treatment of acute manic or mixed episodes in patients with Biplar I Disorder. In addition, a third group of patients will be treated with lithium (1500milligrams/day) as a comparator drug. The trial consists of 3 phases: a screening period; double-blind treatment for 12 weeks; and an optional open-label period of at least 6 months. Efficacy assessments include the change from baseline to Day 21 in the Young Mania Rating Scale (YMRS) score. Also included as efficacy assessments during the 12 week study are the Clinical Global Impressions (CGI) scale, Global Assessment Scale (GAS), Montgomery-Åsberg Depression Rating Scale (MADRS), Brief Psychiatric Rating Scale (BPRS), and health-related quality of life measures at specified time intervals. Safety assessments include evaluation of adverse events throughout the study, rate of withdrawal from the study due to adverse events, and vital signs (blood pressure and pulse) througout the study, as well as changes in clinical laboratory tests (hematology, chemistry, urinalysis), electrocardiograms (ECGs), and physical examinations at specified times. The study hypothesis is that the change from baseline in the total Young Mania Rating Scale (YMSR) score at Day 21 will be significantly better for the topiramate groups than for the placebo group and that the study drug will be well tolerated by the patients. Topiramate oral capsule will be increased from once daily (50mg) to 3 times daily up to target total daily dose 400mg, maintained through Week 12. Lithium oral capsules will be increased from once daily (300mg) to 3 times daily up to target total daily dose of 1500mg, maintained through Week 12. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00035230
Study type Interventional
Source Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Contact
Status Completed
Phase Phase 3
Start date July 2001
Completion date November 2002
View Details
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