Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 2, 2026, 10:54 AM EDT

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Showing 1–24 of 36 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Major Depressive Disorder
Interventions
Pregnenolone 500 mg, Pregnenolone 800 mg, Placebo
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Dallas, Texas
Conditions
Traumatic Brain Injury, TBI
Interventions
Pregnenolone, Placebo
Drug
Lead sponsor
Christine Marx, MD
Other
Eligibility
21 Years to 65 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Durham, North Carolina
Conditions
Major Depressive Disorder, Anxiety Depression, HIV
Interventions
Placebo, Pregnenolone
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 85 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Lower Back Pain
Interventions
Pregnenolone, Placebo
Drug
Lead sponsor
Durham VA Medical Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Cocaine-Related Disorders
Interventions
Pregnenolone (PREG), Placebos
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 60 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Completed Not applicable Interventional Results available

Adjunctive Pregnenolone in Veterans With Mild TBI

NCT00623506
Conditions
Traumatic Brain Injury
Interventions
Pregnenolone, Placebo
Drug
Lead sponsor
Durham VA Medical Center
Federal
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Autism Spectrum Disorder, Autism
Interventions
Pregnenolone, Placebo
Drug
Lead sponsor
Stanford University
Other
Eligibility
14 Years to 25 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
1
States / cities
Stanford, California
Completed Phase 4 Interventional Accepts healthy volunteers

Composition for Treating Cirrhosis and Liver Cancer (SB-1121)

NCT05178303
Conditions
Cirrhosis of the Liver
Interventions
SB-1121(1), SB-1121(2)
Drug
Lead sponsor
Nguyen Thi Trieu, MD
Individual
Eligibility
18 Years to 80 Years
Enrollment
134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2021
U.S. locations
1
States / cities
Wilmington, Delaware
Conditions
Fatigue, Musculoskeletal Pain, Cognitive Decline
Interventions
Pregnenolone, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
40 Years to 65 Years
Enrollment
170 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Chronic Low Back Pain
Interventions
Pregnenolone, DHEA, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Substance Withdrawal Syndrome
Interventions
dehydroepiandrosterone (DHEA), pregnenolone, Placebo
Dietary Supplement · Drug
Lead sponsor
Jed E. Rose
Other
Eligibility
18 Years to 65 Years · Male only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
2
States / cities
Durham, North Carolina • Raleigh, North Carolina
Conditions
Healthy
Interventions
Active Dronabinol, Active Pregnenolone, Placebo Dronabinol, Placebo Pregnenolone
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
West Haven, Connecticut
Conditions
Autistic Disorder
Interventions
Pregnenolone
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 45 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Stanford, California
Conditions
Brain Injuries, Traumatic
Interventions
Pregnenolone, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years to 55 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Healthy
Interventions
Active Delta-9-THC, Active Pregnenolone, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
West Haven, Connecticut
Conditions
Alcohol Use Disorder
Interventions
Pregnenolone, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 70 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
placebo pregnenolone, pregnenolone
Dietary Supplement
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
3
States / cities
Piscataway, New Jersey • New York, New York • White Plains, New York
Conditions
Alcohol Use Disorder (AUD), Major Depressive Disorder (MDD)
Interventions
Pregnenolone, Placebo
Drug
Lead sponsor
Sherwood Brown, MD, PhD
Other
Eligibility
21 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
2
States / cities
Dallas, Texas • Richardson, Texas
Recruiting Phase 2 Interventional Accepts healthy volunteers

Pregnenolone as a Treatment for Cannabis Intoxication

NCT07216690
Conditions
Cannabis Intoxication
Interventions
Cannabis, Pregnenolone 250 mg, Pregnenolone 500 mg, Placebo, Placebo brownie
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Mild Cognitive Impairment, Dementia, Mild
Interventions
Precision Medicine Approach, Hormones and Medications tailored to lab tests, combined with devices that support stress management and brain exercises, Standard-of-Care, Lifestyle including diet, exercise, stress management
Dietary Supplement · Combination Product · Behavioral
Lead sponsor
Alzheimer's Prevention and Reversal Project, Inc.
Other
Eligibility
45 Years to 76 Years
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
6
States / cities
Folsom, California • San Rafael, California • Walnut Creek, California + 3 more
Not listed Phase 1 Interventional Accepts healthy volunteers

Neurosteroids and Acute Alcohol Intoxication in Humans

NCT00608686
Conditions
Alcohol Intoxication
Interventions
Pregnenolone
Dietary Supplement
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
21 Years to 45 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
San Francisco, California
Conditions
Alcohol Use Disorder
Interventions
Pregnenolone300, Pregnenolone500, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 68 Years
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
New Haven, Connecticut
Conditions
Schizophrenia
Interventions
Pregnenolone, Placebo
Drug
Lead sponsor
Durham VA Medical Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Post-traumatic Stress Disorder, Major Depressive Disorder
Interventions
pregnenolone, placebo
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 55 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Durham, North Carolina