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
Smart Symptom Tracking ALEX Application for Tracking and Monitoring Gastrointestinal Health, Smart Horizons Pilot Trial
Mayo Clinic
- Location
- Jacksonville, FL
- Eligibility basics
- Ages 18–44
- RecruitingHealthy volunteers
Hirschsprung Disease Genetic Study
NYU Langone Health
- Location
- New York, NY
- Eligibility basics
- Ages 0 mo–100
- RecruitingHealthy volunteers
Risk Factors for Sudden Unexplained Death in Epilepsy
NYU Langone Health
- Location
- New York, NY
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteersPhase 2
Thinking Zinc: a Study of Zinc Supplements on the Navajo Nation
University of New Mexico
- Location
- Albuquerque, NM
- Eligibility basics
- Ages 21–64
- RecruitingHealthy volunteers
Cerebellar tDCS in Children With Autism Spectrum Disorder
University of Texas Southwestern Medical Center
- Location
- Dallas, TX + 1 other US site
- Eligibility basics
- Ages 4–17
- RecruitingHealthy volunteers
Lung Macrophage Populations and Functions in Chronic Obstructive Pulmonary Disease (COPD)-Susceptible Smokers
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 40–75
- RecruitingHealthy volunteers
Pregnancy Exercise Mode Effect on Childhood Obesity
East Carolina University
- Location
- Greenville, NC
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteersPhase 2
Investigating the Use of Intravenous Tranexamic Acid in Gender Affirming Mastectomy
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteersPhase 4
Immune Spatial Features of Guselkumab Cutaneous Response
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Screening for Autism in 9-Month-Olds by Measuring Social Visual Engagement
Emory University
- Location
- Atlanta, GA + 1 other US site
- Eligibility basics
- Ages 8 mo–10 mo
- RecruitingHealthy volunteers
Restoring Spindle and Thalamocortical Efficiency in Early-Course Schizophrenia Patients Using Auditory Stimulation
Fabio Ferrarelli
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
The Society for Obstetric Anesthesia and Perinatology Research Network General Anesthesia Registry
Yale University
- Location
- Little Rock, AR + 32 other US sites
- Eligibility basics
- Ages 15–55 · Women only
- RecruitingHealthy volunteers
Analysis of Lumbar Spine Stenosis Specimens for Identification of Transthyretin Cardiac Amyloidosis
Columbia University
- Location
- Beverly Hills, CA + 4 other US sites
- Eligibility basics
- Ages 50+
- RecruitingHealthy volunteers
CONVIVO Endomicroscopy
Northwell Health
- Location
- Manhasset, NY
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Gut Microbiota-Mediated Inflammatory Interactions Between AUD and HIV Infection
Rush University Medical Center
- Location
- Chicago, IL
- Eligibility basics
- Ages 45–75
- RecruitingHealthy volunteersPhase 3
Buprenorphine for Individuals in Jail
Friends Research Institute, Inc.
- Location
- Baltimore, MD + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Longitudinal Investigation of Sleep, Memory, and Brain Development Across the Nap Transition
University of Maryland, College Park
- Location
- College Park, MD + 1 other US site
- Eligibility basics
- Ages 3–5
- RecruitingHealthy volunteers
Craving & Decision-Making
Rutgers, The State University of New Jersey
- Location
- Piscataway, NJ
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Spinal Networks of Balance Learning and Retention in Older Adults
University of Florida
- Location
- Gainesville, FL
- Eligibility basics
- Ages 65–95
- RecruitingHealthy volunteers
Diaphragmatic Breathing for the Treatment of Bloating and Distension
Mayo Clinic
- Location
- Jacksonville, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2
Investigating the Interaction of Psilocybin and Context of Its Administration in Healthy Volunteers
Robin Carhart-Harris, PhD, MA
- Location
- San Francisco, CA
- Eligibility basics
- Ages 21–70
- RecruitingHealthy volunteers
Physical and Cognitive Aging Study in Older Adults
University of Florida
- Location
- Jacksonville, FL
- Eligibility basics
- Ages 55–85
- RecruitingHealthy volunteers
Aquagenic Wrinkling Prediction
University of Iowa
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–24
- RecruitingHealthy volunteersPhase 2
Allo HSCT for High Risk Hemoglobinopathies
Masonic Cancer Center, University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Up to age 55
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.