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
Moses 2.0 vs Magneto for HoLEP - a Randomized Controlled Trial
Northwestern University
- Location
- Chicago, IL
- Eligibility basics
- Ages 18–100 · Men only
- RecruitingHealthy volunteers
UCLA Magnesium Formulation Athlete Study
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteersPhase 2
Ongoing Lung Decline With Age Intensified Response
Cedars-Sinai Medical Center
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Effect of Messaging on Pragmatic Outcomes Within an Integrated Healthcare System
Kaiser Permanente
- Location
- Pasadena, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Pulse Oximeter Accuracy in Healthy Humans During Hypoxia
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Brain Stimulation Enhance Post-stroke Walking Survivors and Healthy Adults
The University of Texas Medical Branch, Galveston
- Location
- Galveston, TX
- Eligibility basics
- Ages 21–90
- RecruitingHealthy volunteers
Ear-Seizure Detection (EarSD) Study
Felicia Chu
- Location
- Worcester, MA + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Explore the Effects of Cortical Priming on Visuomotor Stepping Learning in Persons With Chronic Stroke
The University of Texas Medical Branch, Galveston
- Location
- Galveston, TX
- Eligibility basics
- Ages 21–90
- RecruitingHealthy volunteers
Effectiveness of an eHealth Intervention for Uptake of Cervical Cancer Screening in Hispanic Women
Florida A&M University
- Location
- Tallahassee, FL
- Eligibility basics
- Ages 21–65 · Women only
- RecruitingHealthy volunteers
Glaucoma Screening to Enhance At-Risk Californians' Health
University of California, San Francisco
- Location
- Fremont, CA + 1 other US site
- Eligibility basics
- Ages 50+
- RecruitingHealthy volunteers
Evaluating an Implementation Strategy to Improve Physical Activity and Reduce Cardiovascular Risk Factors in Children
The University of Texas Health Science Center, Houston
- Location
- Houston, TX
- Eligibility basics
- Ages 5+
- RecruitingHealthy volunteers
Impact of Novel vs. Usual Brand Menthol Cigarettes on Abuse Liability
Ohio State University Comprehensive Cancer Center
- Location
- Columbus, OH
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteers
The Effect of a Daily Magnesium and Melatonin Supplement on Sleep Quality in People With Nighttime Leg Cramps
StudySetGo
- Location
- Palm Beach Gardens, FL
- Eligibility basics
- Ages 40–75
- RecruitingHealthy volunteers
Sensor Ankle Brace for Special Operations Rehabilitation
Indiana University
- Location
- Bloomington, IN
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteersPhase 2
Paired Stimulation Plasticity for Motor Recovery in Humans With and Without Spinal Cord Injury
Shirley Ryan AbilityLab
- Location
- Chicago, IL
- Eligibility basics
- Ages 19–85
- RecruitingHealthy volunteers
Data-driven Rural Interventions for Vitality and Endurance Pilot Study
McLaughlin Research Institute for Biomedical Sciences, Inc.
- Location
- Great Falls, MT
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Natural History of Treated Neurocysticercosis and Long-Term Outcomes
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 3–99
- RecruitingHealthy volunteers
Studies of the Pathogenesis of HIV Infection in Human Peripheral Blood Cells and/or Body Fluids in People Living With and Without HIV
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–120
- RecruitingHealthy volunteers
Familial Mediterranean Fever and Related Disorders: Genetics and Disease Characteristics
National Human Genome Research Institute (NHGRI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2 mo–115
- RecruitingHealthy volunteers
Recruitment and Apheresis Collection of Peripheral Blood Hematopoietic Stem Cells, Mononuclear Cells and Granulocytes
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
MRI Study of Musculoskeletal Function
National Institutes of Health Clinical Center (CC)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 5–95
- RecruitingHealthy volunteers
Cytapheresis of Volunteer Donors
National Institute on Aging (NIA)
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–120
- RecruitingHealthy volunteers
Long-term Evaluation and Follow-up Care of Patients Treated With Stem Cell Transplants
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 7–80
- RecruitingHealthy volunteers
MRS Measurement of Glutamate and GABA Metabolism in Brain
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–65
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.