Core: healthy volunteers
Studies for healthy volunteers recruiting now
These studies say in their official record that they accept healthy volunteers. Many are Phase 1 studies that test how a new medicine is absorbed and tolerated; others recruit healthy people as a comparison group alongside patients.
4,995 recruiting studiesSource: ClinicalTrials.gov, refreshed October 27, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteers
Weight Loss and Physical Fitness Following Pregnancy in Active Duty Women
Tripler Army Medical Center
- Location
- Honolulu, HI + 1 other US site
- Eligibility basics
- Ages 18–44 · Women only
- RecruitingHealthy volunteers
Combined Oral Motor Stimulation and Language on Preterm Infant Feeding
Women and Infants Hospital of Rhode Island
- Location
- Providence, RI
- Eligibility basics
- Ages 5 mo–7 mo
- RecruitingHealthy volunteers
Fatty Acid Modulation of Brain Function in Older Adults
University of Vermont
- Location
- Burlington, VT
- Eligibility basics
- Ages 65–75
- RecruitingHealthy volunteers
Linking Affective Dynamics in Response to Daily Stress to Peripheral Vascular Function in Working Age Adults
University of Delaware
- Location
- Newark, DE
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Dehydration, Rehydration, and Impact on Physiology
Texas Tech University
- Location
- Lubbock, TX
- Eligibility basics
- Ages 45–65
- RecruitingHealthy volunteersPhase 4
Characterizing the Human Airway Immune Response to FluMist Vaccination
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Inherited CAncer REgistry
Vanderbilt-Ingram Cancer Center
- Location
- Nashville, TN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Community Health Workers United to Reduce Colorectal Cancer and Cardiovascular Disease Among People at Higher Risk
Columbia University
- Location
- New York, NY
- Eligibility basics
- Ages 45+
- RecruitingHealthy volunteers
School Violence Exposure as an Adverse Childhood Experience
Teachers College, Columbia University
- Location
- New York, NY
- Eligibility basics
- Ages 11–65
- RecruitingHealthy volunteers
MIRA CONNECT Study
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–40 · Women only
- RecruitingHealthy volunteers
DNA Methylation and Vascular Function
University of Illinois at Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Objective Integrated Multimodal Electrophysiological Index for the Quantification of Visceral Pain
University of Connecticut
- Location
- Storrs, CT
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
OCT Angiography and NRAI in Dementia
Oregon Health and Science University
- Location
- Portland, OR
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteers
Glaucoma, Visual Field Loss, and Their Association With Life Space in Older Adults
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
A Neurosensory Account of Anxiety and Stress (Study 1)
The University of Texas Health Science Center, Houston
- Location
- Houston, TX
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Mix of Demineralized Freeze-Dried Bone Allograft and Deproteinized Bovine Bone Mineral: a Possible Solution for Alveolar Ridge Preservation?
Nova Southeastern University
- Location
- Fort Lauderdale, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Improving Exercise Adherence With App Technology for At-Risk Adults Living in Rural Kansas and Nebraska
Creighton University
- Location
- Emporia, KS + 1 other US site
- Eligibility basics
- Ages 40–85
- RecruitingHealthy volunteers
Cerebral Oxygen Metabolism in Children
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 3–50
- RecruitingHealthy volunteers
Early Diagnosis and Intervention for Fetal Malposition in Active Labor and Its Impact on Mode of Delivery
Women and Infants Hospital of Rhode Island
- Location
- Providence, RI
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
An Evaluation of the Pink Cloud Application in Post- Treatment Substance Use Disorder Support
Loyola Marymount University
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Muscle Response to Different Amounts of Dietary Protein During Leg Immobilization
United States Army Research Institute of Environmental Medicine
- Location
- Natick, MA
- Eligibility basics
- Ages 17–39
- RecruitingHealthy volunteers
Physiological Effects of ANGPTL3 Variants in Humans
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Transcranial Direct Current Stimulation (tDCS) Neuromodulation of Executive Function Across Neuropsychiatric Populations
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Community Park-Based Programs for Health Promotion: The Fit2Lead Prospective Cohort Study
Duke University
- Location
- Miami, FL
- Eligibility basics
- Ages 12–17
Who these studies look for
“Healthy” is decided at screening, not by you. Sites usually check vital signs, blood and urine tests, an ECG, your medications and sometimes your BMI or smoking status. A study can still turn you away for reasons that have nothing to do with being unwell, such as timing or a full roster.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Do healthy volunteer studies pay?
Many do, because volunteers give up time and follow strict schedules, but amounts are set by each study and are usually only confirmed by the research site. When a record states an amount we show the exact wording; otherwise we say compensation is not disclosed.
What happens at a screening visit?
Expect consent paperwork first, then a health questionnaire, vital signs, blood and urine samples and often an ECG. You can ask questions and withdraw at any time, before or after you sign.