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.
5,002 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteers
The Heartland Study
Heartland Health Research Alliance
- Location
- Indianapolis, IN + 2 other US sites
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
E-Tailored Pain Management Support for Dementia Family Caregivers: Feasibility of the PACE-app
University of Iowa
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
eMOTION: Examining Affective Mechanisms in Physical Activity Engagement
University of Southern California
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2
Nicotine Regulation for Dual Users of E-cigarettes and Cigarettes
University of Vermont
- Location
- Providence, RI + 1 other US site
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteers
Evaluating the Combined Use of Supplement and Serum in Promoting Hair Growth in Women With Self-perceived Thinning Hair
The Center for Clinical and Cosmetic Research
- Location
- Birmingham, AL + 1 other US site
- Eligibility basics
- Ages 28–65 · Women only
- RecruitingHealthy volunteers
Assessing Acceptability and Feasibiity of STI Self-swab Testing, to be Offered at the Time of Telemed Medication Abortion Provision
Queen's Medical Center
- Location
- Honolulu, HI
- Eligibility basics
- Ages 14+ · Women only
- RecruitingHealthy volunteers
Fractionated 1927-nm Non Ablative Thulium Laser in Treating Post Inflammatory Hyperpigmentation
Henry Ford Health System
- Location
- Detroit, MI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Impact of Acute Exercise in the Heat on Breast Milk Production and Composition in Lactating Women
Providence College
- Location
- Providence, RI
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
e-Connect: A Service System Intervention for Justice Youth at Risk for Suicide
Columbia University
- Location
- New York, NY
- Eligibility basics
- Ages 10+
- RecruitingHealthy volunteers
Improving Neurodevelopmental ouTcomes After Prenatal Cannabinoid in uTero Exposure
IDeA States Pediatric Clinical Trials Network
- Location
- Albuquerque, NM + 2 other US sites
- Eligibility basics
- Up to age 0 mo
- RecruitingHealthy volunteers
Hair Biomarkers Study
Stanford University
- Location
- Palo Alto, CA
- Eligibility basics
- Ages 6 mo–2
- RecruitingHealthy volunteers
Dietary Fiber Effects on the Microbiome and Satiety
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 20–55
- RecruitingHealthy volunteers
Early Diagnosis of Pancreatic Cancer Duodenal Fluid-Based Biomarker Exploratory Study
Do Hyun Park
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 19+
- RecruitingHealthy volunteers
Implementation Supports for Improving Identification and Delivery of School-based Mental Health Supports for Middle Schools Students
University of Virginia
- Location
- Columbia, MO + 2 other US sites
- Eligibility basics
- Ages 10–99
- RecruitingHealthy volunteers
Characterization of Inclusion Body Myopathy Associated With Paget's Disease of Bone and Frontotemporal Dementia (IBMPFD)
University of California, Irvine
- Location
- Irvine, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Gut Microbiomes in HD
University of Central Florida
- Location
- Orlando, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Effects of Vestibular Training on Postural Control of Healthy Adults Using Virtual Reality
Clarkson University
- Location
- Potsdam, NY
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteersPhase 2
Involving Communities in Addressing the Maternal Health Crisis: Making an IMPACT
Morehouse School of Medicine
- Location
- Atlanta, GA
- Eligibility basics
- Ages 18–44
- RecruitingHealthy volunteers
The Family Perspectives Project Pilot Trial
Matthew Modes
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Transcranial Electrical Stimulation (TES) at Slow Oscillation (SO) Frequency During NREM Sleep
U.S. Army Medical Research and Development Command
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–39
- RecruitingHealthy volunteers
Perceptual Influences From Smoking Cannabis: an Experimental Study
University of Colorado, Boulder
- Location
- Boulder, CO
- Eligibility basics
- Ages 21–65
- RecruitingHealthy volunteers
Beliefs, Attitudes, and Response to Genetic Testing in SarcomaPatients
University of Utah
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Empathy Through Pain Control: Lidocaine Paracervical Block for IUD Placements
University of California, San Diego
- Location
- La Jolla, CA
- Eligibility basics
- Ages 18–50 · Women only
- RecruitingHealthy volunteersPhase 2
Systems Investigation of Vaccine Responses in Aging and Frailty
Yale University
- Location
- New Haven, CT
- Eligibility basics
- Ages 21+
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.