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Clinical Trial Summary

The goal of this clinical trial is to compare pregnenolone and placebo (a placebo is a look-alike substance that contains no active drug) in Operation Enduring Freedom/Operation Iraqi Freedom/Operation New Dawn (OEF/OIF/OND)-Era Veterans with a history of chronic Traumatic Brain Injury (TBI). The main questions it aims to answer are: - Does pregnenolone improve psychological health, overall physical function, cognition, symptoms of PTSD, and pain more than placebo over the 8-week study period, and what is the most effective dose of the drug that is safe and well-tolerated? - What are the biological effects of pregnenolone, and how do pregnenolone and other molecules change over the course of treatment? (and do pregnenolone and other molecules predict clinical improvement?) Participants who are eligible and consent to participate in the study will: - be randomized in a 1:1 ratio to take pregnenolone or placebo - be given pregnenolone or placebo to take each day at home - will participate in 6 visits over 11 weeks for tests, exams and procedures that are for study purposes (each visit will last 1.5 - 3 hours) - be evaluated at each visit to determine if there are any bad reactions to the study drug and if study participation is still appropriate - be financially compensated for their visit time and travel cost


Clinical Trial Description

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Study Design


Related Conditions & MeSH terms


NCT number NCT05671692
Study type Interventional
Source Duke University
Contact Susan O'Loughlin
Phone 919-384-8582
Email susan.oloughlin@duke.edu
Status Not yet recruiting
Phase Phase 2
Start date June 1, 2023
Completion date August 30, 2026

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