Topiramate vs. Placebo in Preventing Weight Gain in Bipolar Disorder Treated With Olanzapine

Bipolar Disorder Clinical Trial

Official title: A Double-Blind, Randomized, Placebo-Controlled, Pilot Study of Topiramate vs. Placebo in Combination With Olanzapine for the Prevention of Weight Gain in Manic or Mixed Youth With Bipolar Disorder

Status Completed

Clinical Trial Summary

The primary objective of this study is to examine the efficacy of topiramate in combination with olanzapine for the prevention of weight gain in youth with bipolar disorder. The secondary objective is to examine the tolerability of topiramate in combination with olanzapine for the prevention of weight gain in youth with bipolar disorder.

Clinical Trial Description

After consent and screening, patients will be initiated on 5mg or 10mg per day of olanzapine. Olanzapine doses will be titrated to 10-20 mg of olanzapine over one week, to a maximum of 20mg by day 21. Patients will also receive either topiramate (25mg bid titrated over 18 days to 150 mg bid. with flexibility to titrate to 200mg bid) or matched placebo. Topiramate will be initiated at a dose of 25 mg bid and will be increased by 25 mg bid every three days as tolerated. Patients will be evaluated by a blinded (to treatment status and adverse events) rater. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Factorial Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Bipolar Disorder
• Body Weight
• Weight Gain

• NCT number: NCT00394095
• Study type: Interventional
• Source: University of Cincinnati
• Status: Completed
• Phase: Phase 4
• Start date: December 2006
• Completion date: September 2009