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 volunteersPhase 4
Ancillary Nocturnal Urinary Symptoms Analyses for TRIUMPH
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 60+ · Women only
- RecruitingHealthy volunteers
RISE Lab: Building Resilience Through Responsibility
University of Oregon
- Location
- Eugene, OR
- Eligibility basics
- Ages 11–14
- RecruitingHealthy volunteers
State Representation in Early Psychosis 2
University of Minnesota
- Location
- Minneapolis, MN + 1 other US site
- Eligibility basics
- Ages 15–45
- RecruitingHealthy volunteers
Women Informed to Screen Depending on Measures of Risk (Wisdom Study)
University of California, San Francisco
- Location
- Birmingham, AL + 8 other US sites
- Eligibility basics
- Ages 30–74 · Women only
- RecruitingHealthy volunteers
Phenotyping Genetic Risk for Type 2 Diabetes
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 10–70
- RecruitingHealthy volunteersPhase 3
PET Imaging Tau Accumulation in FTLD and Atypical Alzheimer's Using [18F]-PI-2620
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Genomic Uniformed-Screening Against Rare Disease In All Newborns
Columbia University
- Location
- New York, NY
- Eligibility basics
- Ages 0 mo–1 mo
- RecruitingHealthy volunteersPhase 2
Semaglutide for Post-Smoking Cessation Weight Management
The University of Texas Health Science Center, Houston
- Location
- Austin, TX + 1 other US site
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Variability In Mixed Meal Tests: Fixed Versus Adjusted to Energy Needs Caloric Dose
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteers
A Seek, Test, and Treat Intervention to Reduce Chlamydia Trachomatis Disparities
Tulane University
- Location
- New Orleans, LA
- Eligibility basics
- Ages 15–26
- RecruitingHealthy volunteers
Clinical Decision Support to Increase Use of Medications for Opioid Use Disorder
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 12–89
- RecruitingHealthy volunteers
Study of Mental Health and Relationships
University of Illinois at Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 9–16
- RecruitingHealthy volunteers
Exploring Neurophysiological Markers of Brain Health
The University of Texas at Dallas
- Location
- Dallas, TX
- Eligibility basics
- Ages 22–100
- RecruitingHealthy volunteers
The TAIL-PrEP Study
Columbia University
- Location
- New York, NY
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Tailored Patient Navigation to Improve the Uptake of Lung Cancer Screening in Tribal Communities in Western Washington State, SACRED LUNGS Trial
Fred Hutchinson Cancer Center
- Location
- Auburn, WA + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 3
Cessation or Reduction of Alcohol Consumption in Veterans: A Randomized Controlled Trial for Alcohol Use Disorder (CRAVE)
VA Office of Research and Development
- Location
- Long Beach, CA + 17 other US sites
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 3
Delaying the Onset of Nearsightedness Until Treatment (DONUT) Clinical Trial
Ohio State University
- Location
- Birmingham, AL + 11 other US sites
- Eligibility basics
- Ages 6–11
- RecruitingHealthy volunteers
VEDA Study (DHEA vs Estradiol)
University of Arizona
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 40–90 · Women only
- RecruitingHealthy volunteers
Comparing Two Acute Care Transition Programs for Older Adults and Their Family Caregivers
Wake Forest University Health Sciences
- Location
- Bermuda Run, NC + 3 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Adapting a Sexual Assault Prevention Intervention for Transgender Undergraduates: A One-Arm Pilot Trial
Sarah Peitzmeier
- Location
- College Park, MD
- Eligibility basics
- Ages 18–25
- RecruitingHealthy volunteers
Microbiome in Aging of Gut and Brain
University of South Florida
- Location
- Tampa, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Modafinil to Optimize the Performance of Cold-Stressed Sleep-Deprived Personnel
United States Army Research Institute of Environmental Medicine
- Location
- Natick, MA
- Eligibility basics
- Ages 17–39
- RecruitingHealthy volunteersPhase 2
This Protocol is a Sub-study Under the PPMI Program. It is a Longitudinal, Single-center Study to Assess the Performance of [18F]AV-133 Imaging Using High and Standard Resolution PET in Individuals Enrolled With…
Michael J. Fox Foundation for Parkinson's Research
- Location
- New Haven, CT
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Cyclic vs. Constant Estradiol: Regimens' Effects on Brain Health
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 38–60 · Women only
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.