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.
4,991 recruiting studiesSource: ClinicalTrials.gov, refreshed October 28, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteers
COVID-19 Health Adjustments in Nutrition, General Wellness, and Exercise
Indiana University
- Location
- Bloomington, IN
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Gut Mini-Pill Study
Tufts University
- Location
- Boston, MA
- Eligibility basics
- Ages 50–75
- RecruitingHealthy volunteers
High Risk Breast Clinic: Protocol for Women at Increased Risk for Developing Breast Cancer
Carol Fabian, MD
- Location
- Kansas City, KS
- Eligibility basics
- Ages 30–65 · Women only
- RecruitingHealthy volunteersPhase 4
Anticoagulation Profile in Pregnant Women Treated With Three Times a Day of Low Molecular Weight Heparin (LMWH)
University of California, Irvine
- Location
- Orange, CA
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Quantification of Visually Evoked Cortical Potentials in Individuals With Hearing Loss
Dartmouth-Hitchcock Medical Center
- Location
- Lebanon, NH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Behavioral Assessment and Treatment of Problem Behavior in Children With Cornelia de Lange Syndrome
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
- Location
- Baltimore, MD
- Eligibility basics
- Ages 3–15
- RecruitingHealthy volunteersPhase 4
Beta-Blocker Influences on Inflammatory and Neural Responses to Stress
University of North Carolina, Chapel Hill
- Location
- Chapel Hill, NC
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteers
Communicating About Nicotine Reduction in Cigarettes
Georgia State University
- Location
- Atlanta, GA + 1 other US site
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteers
Prebiotics (Dried Plum) and Immune Function in Postmenopausal Women
Indiana University
- Location
- Indianapolis, IN
- Eligibility basics
- Ages 60–75 · Women only
- RecruitingHealthy volunteers
Tissue Sample Collection From Patients With Head and Neck Cancer and From Healthy Participants
Vanderbilt University Medical Center
- Location
- Nashville, TN + 3 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 3
Artificial Tears to Prevent Nasolacrimal Duct Obstruction in Patients Treated With Radioactive Iodine for Thyroid Cancer
Vanderbilt University Medical Center
- Location
- Nashville, TN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Addressing Genomic Disparities in Cancer Survivors
Rutgers, The State University of New Jersey
- Location
- Washington D.C., DC + 1 other US site
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Alcohol and Sexual Communication Among Couples in the Laboratory
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 21–65
- RecruitingHealthy volunteers
Cognitive Vitality Pilot Study
Arizona State University
- Location
- West Palm Beach, FL
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteersPhase 4
Adhesive Capsulitis: Prospective Analysis of Efficacy and Financial Impact for Use of Physical Therapy in Treatment
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Developmental Framework For Linking Phonological And Morpho-syntactic Sequential Pattern Rules In DLD: Production
Father Flanagan's Boys' Home
- Location
- Tucson, AZ + 1 other US site
- Eligibility basics
- Ages 4–8
- RecruitingHealthy volunteers
Mapping and Modulating the Spatiotemporal Dynamics of Socio-Affective Processing
Baylor College of Medicine
- Location
- Houston, TX
- Eligibility basics
- Ages 22–70
- RecruitingHealthy volunteers
STELLA-FTD: Examination of a Behavior Change Intervention for FTD Family Care Partners
Oregon Health and Science University
- Location
- Portland, OR
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
A Food As Medicine Approach to Address Food Insecurity in Rural North Carolina
North Carolina State University
- Location
- Raleigh, NC
- Eligibility basics
- Ages 8–64
- RecruitingHealthy volunteers
Prescription of Step Counts for Targeted Changes in Body Composition and Cardiometabolic Risk in Overweight/Obese Adults
Kennesaw State University
- Location
- Kennesaw, GA
- Eligibility basics
- Ages 20+
- RecruitingHealthy volunteers
Evaluating a Mat-Based Biometric Vibration System for Sleep and Daily Recovery
Florida International University
- Location
- Miami, FL
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Diagnostic Innovations in Glaucoma Study
University of California, San Diego
- Location
- La Jolla, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
National Pregnancy Registry for Psychiatric Medications
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
The Human Trisome Project
University of Colorado, Denver
- Location
- Denver, CO
- Eligibility basics
- Ages 6 mo–89
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.