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Clinical Trial Summary

This is a randomized, double blind, placebo controlled trial of the medication zonisamide for the purpose of reducing heavy drinking and drinking, as well as reducing mood symptoms, in bipolar subjects that drink excessively and heavily.

Hypotheses: (Primary aims); Add-on zonisamide compared to placebo will result in:

1. significant reduction in heavy drinking days, drinks per week and per drinking day, and significantly greater increase in abstinent days, ii) greater rates of abstinence and abstinence to heavy drinking, greater reduction in biomarkers of heavy alcohol use such as gamma-glutamyl transferase (GGT), and greater reduction in alcohol urge or "craving",

2. Significant reduction in prevalent mood symptoms on the BRMS and BRMeS, CARS, HAMD, or no worsening of euthymic mood, and significant improvement on the Clinical Global Impressions Scale-Severity.

3. (Secondary aims) Add-on zonisamide compared to placebo will result in significant reduction in weight (kilograms) and other secondary weight-related metabolic factors such as fasting glucose, lipid profile, and blood pressure.

4. (Secondary aims) Add-on zonisamide compared to placebo will result in improved clinical global impression, overall functioning, quality of life, and reduced medical symptoms.

5.) (Exploratory Aims) To will examine interactions between genotype and medication on treatment response for allelic variation in genetic loci related to the major neurotransmitter and neurophysiologic pathways that are relevant to bipolar disorder, alcoholism, and zonisamide mechanism of action.


Clinical Trial Description

n/a


Study Design

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


Related Conditions & MeSH terms


NCT number NCT01566370
Study type Interventional
Source VA Connecticut Healthcare System
Contact
Status Terminated
Phase Phase 2
Start date May 2012
Completion date September 2016

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