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
taVNS-Paired Breastfeeding to Improve Breastfeeding at Discharge
Medical University of South Carolina
- Location
- Charleston, SC
- Eligibility basics
- Ages 8 mo+
- RecruitingHealthy volunteersPhase 2/Phase 3
Empagliflozin Reversal of Arterial StiffnEss in Aging
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 60–80
- RecruitingHealthy volunteers
The Impact of an Evidence-Based Parenting Service on Maternal Sensitivity and Infant Cellular Aging in a Population of Under-Resourced Families
University of Washington
- Location
- Raleigh, NC
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Assessment of Skin Lesions Using a Tissue Oxygen Imager Based on Protoporphyrin IX (PPIX) Fluorescence. This is an Open-label, Non-randomized, Feasibility Study That Includes a One-time Application of an FDA Approved…
Dartmouth-Hitchcock Medical Center
- Location
- Lebanon, NH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Effect of Near-infrared Light Therapy on Brain Function and Cognition in Young and Older Adults
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 21–85
- RecruitingHealthy volunteersPhase 2
ALA-enriched Nutrition for Prevention of Cognitive Decline in APOE4 Older Adults
Michal Schnaider Beeri, Ph.D.
- Location
- New Brunswick, NJ
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Lung Ultrasound Artefact Analysis for Exclusion of Acute Rejection in Lung Transplant Recipients
Mayo Clinic
- Location
- Jacksonville, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Tennessee Alzheimer's Project
Vanderbilt University Medical Center
- Location
- Nashville, TN
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Preliminary Testing of Cafe Move for Primary Prevention of Physical Frailty
University of Montana
- Location
- Missoula, MT
- Eligibility basics
- Ages 50–85
- RecruitingHealthy volunteers
Telehealth Multi-Component Optional Model (MOM) Study
University of Arkansas
- Location
- Fayetteville, AR + 3 other US sites
- Eligibility basics
- Ages 18–44 · Women only
- RecruitingHealthy volunteers
Study of Human Brain-Gut Axis and Gut Microbiome in Patients With Brain Lesions - Repository for Neuroscience Research
Mayo Clinic
- Location
- Jacksonville, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Human Laboratory Study of the Effects of Nicotine Product Claims on Appeal, Perceptions, and Use Behavior
Ohio State University Comprehensive Cancer Center
- Location
- Columbus, OH
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Neurometabolic Profile of Individuals With Primary Mitochondrial Disease
Children's Hospital of Philadelphia
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 8–75
- RecruitingHealthy volunteers
Cognitive Screening Made Easy for PCPs - Administrative Supplement
University of Texas at Austin
- Location
- Austin, TX + 2 other US sites
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Healthy Volunteers Study
Abramson Cancer Center at Penn Medicine
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 30–50 · Women only
- RecruitingHealthy volunteers
Hybrid Effectiveness-Implementation Trial to Integrate Precision Skin Cancer Risk Feedback in FQHCs
H. Lee Moffitt Cancer Center and Research Institute
- Location
- Tampa, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Impact of Weizmannia (Bacillus) Coagulans JBI-YZ6.3 on Gut Health and Fecal Microbiome Changes
Lindenwood University
- Location
- Saint Charles, MO
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
North American Mitochondrial Disease Consortium Patient Registry and Biorepository (NAMDC)
Columbia University
- Location
- San Diego, CA + 15 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Germ Cell Tumor and Testicular Tumor DNA Registry
Memorial Sloan Kettering Cancer Center
- Location
- Basking Ridge, NJ + 5 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Retinal Imaging in Neurodegenerative Disease
Duke University
- Location
- Durham, NC
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Efficacy of Preoperative Administration of Gabapentin in 3rd Molar Dental Extraction.
Loma Linda University
- Location
- Loma Linda, CA
- Eligibility basics
- Ages 18–59
- RecruitingHealthy volunteers
Allergy and Immunology Natural History Study
Columbia University
- Location
- New York, NY
- Eligibility basics
- Up to age 99
- RecruitingHealthy volunteersPhase 2
129Xe MRI Cardiopulmonary
Bastiaan Driehuys
- Location
- Durham, NC
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Addressing Food Insecurity: Plant-Based Food Prescription Program
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Up to age 99
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.