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
Optimizing an Extended Care Intervention to Promote Weight Loss Maintenance
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 3
Lidocaine Versus Diphenhydramine to Achieve Local Anesthesia for Laceration Repairs
Florida Atlantic University
- Location
- Boynton Beach, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Study of SCAD Using Stress Contrast Echocardiography
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Chromosome 18 Clinical Research Center
The University of Texas Health Science Center at San Antonio
- Location
- San Antonio, TX + 1 other US site
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
MR Evaluation of Cerebrospinal Fluid (CSF) Dynamics
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Wound Healing Following Tooth Extraction and Ridge Preservation Using OsteoGen®
The University of Texas Health Science Center at San Antonio
- Location
- San Antonio, TX
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteers
Carotenoid Supplementation and Retinal Health in Healthy Adults
Pacific University
- Location
- Forest Grove, OR
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Immune Reconstitution in Stem Cell Transplant Recipients
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
The Role of Oxytocin in the Second Stage of Labor
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Any age listed · Women only
- RecruitingHealthy volunteers
Effects of White Button Mushroom on Inflammation in Obese Postmenopausal Women at High Risk of Breast Cancer
City of Hope Medical Center
- Location
- Duarte, CA
- Eligibility basics
- Ages 21+ · Women only
- RecruitingHealthy volunteers
The Longevity Genes in Founder Populations Project
Albert Einstein College of Medicine
- Location
- New York, NY + 1 other US site
- Eligibility basics
- Ages 65+
- RecruitingHealthy volunteers
Exercise Physiology in Patients With Aortic Aneurysm and Its Correlation With Mechanical Properties of Aortic Tissue
The Cleveland Clinic
- Location
- Cleveland, OH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Using Near-Infrared Light to Better Understand Peripheral Artery Disease
The University of Texas at Arlington
- Location
- Arlington, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Rapid Effects of a Biofield Patch on Antioxidant Status and Cellular Energy
Natural Immune Systems Inc
- Location
- Klamath Falls, OR
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteersPhase 2
Randomized Phase II Trial of Targeted Radiation With no Castration for Mcrpc
VA Office of Research and Development
- Location
- West Los Angeles, CA + 3 other US sites
- Eligibility basics
- Ages 18+ · Men only
- RecruitingHealthy volunteers
CARE Study: Cancer, Asian Americans, and Relationship Enrichment
Fox Chase Cancer Center
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 21–80
- RecruitingHealthy volunteers
Protein Requirements for Active Children
Arkansas Children's Hospital Research Institute
- Location
- Little Rock, AR
- Eligibility basics
- Ages 8–10
- RecruitingHealthy volunteers
Prospective Investigation of Multiple Sclerosis in the Three Rivers Region
University of Pittsburgh
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 7+
- RecruitingHealthy volunteers
Ridge Augmentation Using Allograft Particles Hydrated With or Without Recombinant Human Platelet-Derived Growth Factor
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteers
UCLA Perinatal Biospecimen Repository
Yalda Afshar, MD, PhD
- Location
- Los Angeles, CA
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Promoting Resilience in Early Survivorship Among Adolescents and Young Adults With Cancer
Dana-Farber Cancer Institute
- Location
- Boston, MA
- Eligibility basics
- Ages 12–25
- RecruitingHealthy volunteers
Bioavailability of Ration Items Containing Tart Cherry Extract
United States Army Research Institute of Environmental Medicine
- Location
- Natick, MA
- Eligibility basics
- Ages 17–39
- RecruitingHealthy volunteers
CanCan Body Composition Study
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 20–90
- RecruitingHealthy volunteers
Use of Artificial Intelligence for Clinical Assessment of Assisted Reproductive Techniques and IVF Outcomes
Weill Medical College of Cornell University
- Location
- New York, NY
- Eligibility basics
- Ages 18–89
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.