Peroxisomal Defects & Familial Risk for Bipolar Disorder

Status Completed

Clinical Trial Summary

The purpose of this study is to screen for peroxisome defects in child and adolescent offspring of Bipolar Disorder I (BD-I) parents at different stages of risk for transitioning to mania and following the onset of mania.

Prediction 1: Youth with an elevated risk for developing BD-I and first-episode manic patients will exhibit graded deficits in measures of peroxisomal function compared with healthy controls.

Prediction 2: Indices of peroxisomal function will be correlated with Red Blood Cells Docosahexaenoic acid (DHA) composition.

Prediction 3: Graded deficits in measures of peroxisomal function will be inversely correlated with manic and depression symptom severity scores.

Clinical Trial Description

Overall Study Design: This study entails collecting fasting venous blood (20 ml) from, and administering the 'omega-3 questionnaire' to, subjects being recruited from ongoing National Institute of Mental Health (NIMH)-sponsored trials within the Department of Psychiatry, University of Cincinnati College of Medicine. Specifically, blood will be collected from 20 healthy controls (i.e., no personal or family history of any Axis I mood disorder according to the Diagnostic and Statistical Manual of Mental Disorders-IV [DSM-IV]) and 20 asymptomatic high-risk (i.e., have a biological parent with BD-I) adolescents (aged 10-18 years old) recruited for study MH077138 (UC-IRB #: 07-04-10-03, BITREC Project 3; PI: DelBello), 20 ultra-high risk (i.e., have a biological parent with BD-I and a Major Depressive Disorder (MDD) diagnosis) recruited for study MH083924 (UC-IRB #: 04-09-15-03, CO-Principal Investigators DelBello/McNamara), and 20 adolescents who are admitted for their first hospitalization and who have a diagnosis of BD-I recruited for study MH080973 (UC-IRB #: 08-10-30-01, Principal Investigator: DelBello). Blood will then be processed, and de-identified tubes sent to the Kennedy Krieger Institute, Peroxisomal Diseases Section, to determine the following measures of peroxisomal function: (1) plasma very long chain fatty acids (C24:0 & C26:0) concentrations, (2) plasma bile acid C27 intermediate (dehydrocrepenynic acid {DHCA},tetrahydrocannabinolic acid {THCA})concentrations, (3) plasma pipecolic acid concentrations, and (4) Red Blood Cell (RBC) plasmalogen concentrations. Additionally, RBC fatty acid composition will be determined by gas chromatography, and platelet function and plasma inflammatory markers assayed using commercially available kits according to manufacturer's instructions. ;

Study Design

Observational Model: Case-Crossover, Time Perspective: Retrospective

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01237379
Study type	Observational
Source	University of Cincinnati
Contact
Status	Completed
Phase	N/A
Start date	October 2010
Completion date	October 2013

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Peroxisomal Defects and Familial Risk for Bipolar Disorder

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms