Novel Intervention for Chronic Complex TBI in OEF/OIF/OND Veterans
Public ClinicalTrials.gov record NCT05671692. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
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
Study identification
- NCT ID
- NCT05671692
- Recruitment status
- Suspended
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 108 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 21 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 5, 2024
- Primary completion
- Aug 29, 2026
- Completion
- Aug 29, 2026
- Last update posted
- May 12, 2026
2024 – 2026
United States locations
- U.S. sites
- 2
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Duke University School of Medicine | Durham | North Carolina | 27705 | — |
| Durham VA Health Care System | Durham | North Carolina | 27705 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05671692, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted May 12, 2026 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05671692 live on ClinicalTrials.gov.