- Conditions
- Loneliness, Mood
- Interventions
- AI phone companion
- Other
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
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.
All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.
Official matching trials
4975
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.
Showing 1765–1776 of 4,975 healthy volunteer trials.
Live ClinicalTrials.gov results.
Live official records
- Conditions
- Parkinson Disease, Alzheimer Disease, Mild Cognitive Impairment
- Interventions
- Not listed
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 55 Years to 90 Years
- Enrollment
- 120 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2019 – 2028
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Multiple Sclerosis
- Interventions
- [18F] FZTA
- Drug
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2029
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- Conditions
- Preterm Birth, Cervix; Pregnancy
- Interventions
- Not listed
- Lead sponsor
- John O'Brien, MD
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 240 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2027
- U.S. locations
- 1
- States / cities
- Lexington, Kentucky
- Conditions
- Ketogenic Diet, Alcohol Drinking, Alcohol Use Disorder, Magnetic Resonance Imaging, Alcohol Intoxication
- Interventions
- Ketogenic diet
- Other
- Lead sponsor
- University of Pennsylvania
- Other
- Eligibility
- 21 Years to 50 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2030
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Pregnant Individuals, Obesity & Overweight, Gestational Weight Gain
- Interventions
- Not listed
- Lead sponsor
- University of Kansas Medical Center
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 400 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2028
- U.S. locations
- 1
- States / cities
- Kansas City, Kansas
- Conditions
- Hypoxic Breathwork With Music and Affirmative Messaging, Hypoxic Breathwork Only, Music and Affirmative Messaging
- Interventions
- Hypoxic breathwork plus music and messaging, Hypoxic breathwork only, Music and messaging meditation
- Behavioral
- Lead sponsor
- University of California, San Diego
- Other
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 75 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2028
- U.S. locations
- 1
- States / cities
- La Jolla, California
- Conditions
- Healthy Participants
- Interventions
- No intervention (observational study)
- Other
- Lead sponsor
- Children's National Research Institute
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Washington D.C., District of Columbia
- Conditions
- Obesity
- Interventions
- endothelial cell collection
- Other
- Lead sponsor
- Bettina Mittendorfer
- Other
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 100 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2028
- U.S. locations
- 1
- States / cities
- Columbia, Missouri
- Conditions
- Breast Atypical Hyperplasia, Breast Carcinoma, Breast Ductal Carcinoma In Situ, Breast Lobular Carcinoma In Situ
- Interventions
- Biospecimen Collection, Mammography, Omega-3-Acid Ethyl Esters, Questionnaire Administration, Random Periareolar Fine-Needle Aspiration, Tamoxifen
- Procedure · Drug · Other
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 45 Years to 74 Years · Female only
- Enrollment
- 66 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2028
- U.S. locations
- 3
- States / cities
- Kansas City, Kansas • Ann Arbor, Michigan • Columbus, Ohio
- Conditions
- Sleep, Cardiovascular Risk Factor
- Interventions
- Regularized Sleep Schedule
- Behavioral
- Lead sponsor
- Oregon Health and Science University
- Other
- Eligibility
- 25 Years to 65 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2027
- U.S. locations
- 1
- States / cities
- Portland, Oregon
- Conditions
- Sleep
- Interventions
- Sleep restriction, Weight gain
- Behavioral · Dietary Supplement
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 5,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2031
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota