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
Benefits of Nicotinamide Riboside Upon Cognition and Sleep
State University of New York at Buffalo
- Location
- Buffalo, NY
- Eligibility basics
- Ages 65–85
- RecruitingHealthy volunteers
Natural History of Inflammatory Muscle Diseases
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–120
- RecruitingHealthy volunteers
Latinx Children and Surgery
University of California, Irvine
- Location
- Orange, CA
- Eligibility basics
- Ages 2–12
- RecruitingHealthy volunteers
Pelvic Vein Quantitative Flow Characterization Using 2D and 4D Flow MRI
Ningcheng Peter Li
- Location
- Worcester, MA
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteers
Comparison of Microbiome Changes in Healthy Adults Following Ketone Ester Consumption
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Comparison of Two Different Sperm Processing Methods and Their Effects on Sperm DNA Fragmentation and Embryo Development
Richard Kordus, PhD, HCLD (ABB)
- Location
- Greenville, SC
- Eligibility basics
- Ages 18–34
- RecruitingHealthy volunteers
Insomnia and Insulin Resistance
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersPhase 2
JAK Signaling in Depression and Cognition in Male Football Players
Emory University
- Location
- Atlanta, GA + 2 other US sites
- Eligibility basics
- Ages 30–55 · Men only
- RecruitingHealthy volunteers
Mobile Sun Health Intervention EnabLing Daily Protection
University of Utah
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 18–29
- RecruitingHealthy volunteers
Anchoring and Postural Stability
University of Central Florida
- Location
- Orlando, FL
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Greek Connections Study
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–29
- RecruitingHealthy volunteers
Lower Body Negative Pressure to Validate Physiological Monitors
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Dystonia Genotype-Phenotype Correlation
University of Texas Southwestern Medical Center
- Location
- Dallas, TX
- Eligibility basics
- Ages 11+
- RecruitingHealthy volunteers
Neurobiological Mechanisms of Aging and Stress on Prospective Navigation
Georgia Institute of Technology
- Location
- Atlanta, GA
- Eligibility basics
- Ages 65–80
- RecruitingHealthy volunteers
American Lung Association (ALA) Lung Health Cohort
Johns Hopkins University
- Location
- Birmingham, AL + 26 other US sites
- Eligibility basics
- Ages 25–35
- RecruitingHealthy volunteers
Combating Alzheimer's Through Sleep and Exercise
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Ages 55–80
- RecruitingHealthy volunteers
Examining the Impact of Exercise Training on Vascular Dysfunction in Individuals With Mental Health Disorders - Study 1
Virginia Commonwealth University
- Location
- Richmond, VA
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteers
UCLA REST Study (REsearch on Sleep Techniques)
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18–22
- RecruitingHealthy volunteers
Leveraging Chatbot to Improve PrEP in the Southern United States
Yale University
- Location
- Miami, FL + 3 other US sites
- Eligibility basics
- Ages 18+ · Men only
- RecruitingHealthy volunteers
Improving Memory in Alzheimer's Disease With Noninvasive Brain Stimulation
Boston University Charles River Campus
- Location
- Boston, MA
- Eligibility basics
- Ages 50–100
- RecruitingHealthy volunteers
Prospective Study of Sensation and Satisfaction in Cancer and Transgender Mastectomy Patients
Weill Medical College of Cornell University
- Location
- Boston, MA + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Biomarker Approach to Screening for the Early Detection of HPV-related Oropharyngeal Cancer (BASH OPC)
H. Lee Moffitt Cancer Center and Research Institute
- Location
- Tampa, FL + 2 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Precise Oncology Interventions in Nutrition and Training (OnPoint)
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Behavioral Economic Intervention to Improve HIV Behaviors in Sexual Minority Individuals
The University of Texas Health Science Center at San Antonio
- Location
- San Antonio, TX
- Eligibility basics
- Ages 18–34
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.