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Confirmatory Efficacy Trial of a Gluten-Free Diet in a Subgroup of Persons With Schizophrenia Who Have High Levels of IgG Anti-Gliadin Antibodies (AGA IG)

Schizophrenia Clinical Trial

Official title:
Confirmatory Double-Blind Placebo-Controlled Efficacy Trial of a Gluten-Free Diet in a Subgroup of Persons With Schizophrenia Who Have High Levels of IgG Anti-Gliadin Antibodies (AGA IG)

Clinical Trial Summary

This study purpose is to conduct a confirmatory double-blind randomized controlled trial in an inpatient setting of the effects of a tightly controlled gluten-free diet (GFD) to improve negative symptoms in people with schizophrenia or schizoaffective disorder who have antibodies to gliadin (AGA IgG). As part of the project investigators will also confirm outcomes such as cognitive symptoms, changes in peripheral and central inflammation as well as gut/blood brain barrier permeability.

Clinical Trial Description

This study is a randomized double blind clinical trial being funded by NIMH. Investigators will need to enroll 40 cases with AGA IgG positivity in order to present a powered and convincing result about the efficacy of gluten withdrawal in the subpopulation of persons with schizophrenia with elevated AGA IgG levels. Investigators will recruit a minimum 50 to ensure they are well powered without question, and to account for dropouts. Investigators will use a battery of measures of peripheral and central inflammation as well as gut permeability at baseline and endpoint to confirm the relationship of these outcomes to changes in AGA IgG and symptom changes in the clinical trial. Investigators will test negative symptoms as a primary outcome but will test changes in other symptom domains such as positive symptoms. After the completion of the 5 week confirmatory study, investigators will discharge participants and follow them for 8 weeks in their own environment to test the maintenance of the effect following the stringent GFD, and provide education on gluten free shopping, cooking and eating. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03183609
Study type Interventional
Source University of Maryland, Baltimore
Contact Ann Keanrs, MS
Phone 410-402-6854
Email akearns@mprc.umaryland.edu
Status Recruiting
Phase N/A
Start date July 10, 2017
Completion date July 30, 2025
View Details
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