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Pilot Study of the Effects of Circadian Rhythms on the Treatment of Bipolar I Depression. — Rhythms  

Bipolar Disorder Clinical Trial

Official title:
Rhythmicity as a Moderator of Treatment Outcomes of Bipolar I Depression -Pilot Study

Clinical Trial Summary

The objective of this pilot study is to test the feasibility of a larger planned trial. The objective of this larger trial will be to determine the extent to which aspects of circadian rhythmicity, including, sleep/wake rhythms, daily social routines (i.e., social rhythms), circadian type (morningness/eveningness), endogenous circadian rhythms and polymorphisms associated with altered circadian function in specific genes (namely, CLOCK, Period 2 and Period 3) moderate treatment response in bipolar disorder.

Clinical Trial Description

This study is a small scale pilot study which will be used to support a larger trial. The major aims of the larger study are to determine the extent to which aspects of circadian rhythmicity, including, sleep/wake rhythms, daily social routines (i.e., social rhythms), circadian type (morningness/eveningness), endogenous circadian rhythms and polymorphisms associated with altered circadian function in specific genes (namely, CLOCK, Period 2 and Period 3) moderate treatment response in bipolar disorder.

The overarching aim of the study is to clarify the nature of rhythm abnormalities in bipolar disorder and, especially, their relation to clinical state. We propose to do this in the context of a randomized intervention protocol in which half of the subjects will receive a treatment aimed at rhythm regularization. We expect to study individuals with a range of circadian and sleep-wake abnormalities, social rhythm disturbances, and circadian type and to examine the extent to which these parameters predict subjects' clinical outcomes. Since one half of the subjects will receive IPSRT as part of their treatment regimen (with increasing regularity of social routines as a goal of treatment), we will be able to examine the extent to which changes in social rhythm regularity and sleep quality are associated with clinical and functional improvement and whether these outcomes are mediated by changes in endogenous circadian rhythms. ;

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Open Label

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00726154
Study type Interventional
Source University of Pittsburgh
Contact
Status Withdrawn
Phase N/A
Start date June 2009
Completion date June 2009
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