Independent directory Public ClinicalTrials.gov records United States
Healthy Volunteer Hub

Healthy volunteer clinical trials in the U.S.

This page focuses on public ClinicalTrials.gov records that explicitly say they accept healthy volunteers. It starts with recruiting studies by default, and it does not guess the visitor's location. Add a city or state only when you want location-specific results before checking the official study record.

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 17, 2026, 3:49 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official matching trials
5021
Shown on this page
12
Default status
Recruiting
The default view starts with recruiting studies because those are usually the most actionable.
Current order
Recently updated
Within the current status filter, results are ordered by the selected sort option.
ClinicalTrials.gov exposes a structured Accepts Healthy Volunteers field, not a standardized compensation amount. Healthy volunteer does not automatically mean control group, low risk, or paid. This page is U.S.-wide unless you add a city or state filter yourself. If payment, reimbursement, screening pay, or tax handling matters, confirm it on the official record or directly with the study team.

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These controls stay within studies whose public record says they accept healthy volunteers. The default view starts with Recruiting studies, and location only changes when you add a city or state.

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Showing 733–744 of 5,021 healthy volunteer trials.
Live ClinicalTrials.gov results.

Live official records

Recruiting Phase 1 Interventional Accepts healthy volunteers

Inflammatory Challenge and Fear

NCT06630884
Conditions
Posttraumatic Stress Disorder (PTSD)
Interventions
Typhoid VI Polysaccharide Vaccine Injectable Solution, Saline Placebo (0.5mL injection)
Biological · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
288 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Francisco, California
Conditions
Sleep Deprivation, Cold Exposure
Interventions
Modafinil (M), 200 mg Microcrystalline Cellulose
Drug
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
17 Years to 39 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Natick, Massachusetts
Conditions
Sudan Virus Disease
Interventions
rVSVΔG-SUDV-GP, Placebo
Biological · Other
Lead sponsor
International AIDS Vaccine Initiative
Network
Eligibility
18 Years to 50 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
3
States / cities
Washington D.C., District of Columbia • Lenexa, Kansas • Boston, Massachusetts
Conditions
Alcohol Use Disorder
Interventions
Semaglutide, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 80 Years
Enrollment
622 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
19
States / cities
Long Beach, California • Palo Alto, California • West Los Angeles, California + 15 more
Recruiting No phase listed Observational Accepts healthy volunteers

Microbiome in Aging of Gut and Brain

NCT07799402
Conditions
Mild Cognitive Impairment, Alzheimer Disease (AD), Dementia
Interventions
Not listed
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2031
U.S. locations
1
States / cities
Tampa, Florida
Recruiting Not applicable Interventional Accepts healthy volunteers

A Seek, Test, and Treat Intervention to Reduce Chlamydia Trachomatis Disparities

NCT06428643
Conditions
Chlamydia, Gonorrhea, Hiv, Syphilis
Interventions
Chlamydia, gonorrhea, syphilis, and HIV screening
Other
Lead sponsor
Tulane University
Other
Eligibility
15 Years to 26 Years
Enrollment
2,322 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
New Orleans, Louisiana
Recruiting Not applicable Interventional Accepts healthy volunteers

VEDA Study (DHEA vs Estradiol)

NCT07574216
Conditions
Post-menopause, Pre-menopause, Sexual Function, Menopause, Vaginal Dryness, Painful Intercourse
Interventions
DHEA ovals, Estradiol 0.01% Vag Cream
Drug
Lead sponsor
University of Arizona
Other
Eligibility
40 Years to 90 Years · Female only
Enrollment
324 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2031
U.S. locations
1
States / cities
Phoenix, Arizona
Conditions
Parkinson's Disease (PD), Healthy Control Subjects
Interventions
[18F]AV-133
Drug
Lead sponsor
Michael J. Fox Foundation for Parkinson's Research
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
Hepatic Impairment
Interventions
Inavolisib
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
4
States / cities
Lake Forest, California • Orlando, Florida • San Antonio, Texas
Conditions
HIV Infections
Interventions
CD40.HIVRI.Env (VRIPRO), Hiltonol Poly-ICLC-adjuvant
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
7
States / cities
San Francisco, California • Decatur, Georgia • Boston, Massachusetts + 4 more
Conditions
Premature Ovarian Insufficiency
Interventions
Progesterone, Estrogen Patch
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
11 Years to 19 Years · Female only
Enrollment
185 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2031
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Healthy
Interventions
Vanilla Protein Formula, Chocolate Protein Formula
Dietary Supplement
Lead sponsor
Qualia Life Sciences
Industry
Eligibility
21 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Carlsbad, California