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
A Study to Evaluate Breathing Muscle Training in Cardiac Rehab
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Testing eSCCIP: An eHealth Psychosocial Intervention for English and Spanish Speaking Parents of Children With Cancer
Nemours Children's Clinic
- Location
- Wilmington, DE
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteersPhase 4
Durability of Vaccine Responses
Emory University
- Location
- Atlanta, GA + 2 other US sites
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Small Extracellular Vesicles and Insulin Action
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 25–55
- RecruitingHealthy volunteersPhase 2
Fimepinostat, Combination HDAC and Pi3-kinase Inhibitor Tumor-Directed Therapy for Cushing Disease
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Childhood Trauma, Exercise, and Cognition
University of Texas at Austin
- Location
- Austin, TX
- Eligibility basics
- Ages 40–60
- RecruitingHealthy volunteers
Goal Setting to Promote Physical Activity Adherence in Midlife Adults
Arizona State University
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 45–65
- RecruitingHealthy volunteers
FDG PET/MR Imaging of Peripheral Pain Generators
University of Wisconsin, Madison
- Location
- Madison, WI
- Eligibility basics
- Ages 18–85
- RecruitingHealthy volunteers
Deep Functional Phenotyping of the ALA Lung Health Cohort
Johns Hopkins University
- Location
- Birmingham, AL + 11 other US sites
- Eligibility basics
- Ages 25–35
- RecruitingHealthy volunteers
Effects of Goji vs. Fiber on Macular Degeneration
University of California, Davis
- Location
- Sacramento, CA
- Eligibility basics
- Ages 65–95
- RecruitingHealthy volunteers
Comprehensive HHT Outcomes Registry of the United States (CHORUS)
Cure HHT
- Location
- Birmingham, AL + 15 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Phenotyping of Postural Orthostatic Tachycardia Syndrome (POTS)
University of Texas Southwestern Medical Center
- Location
- Dallas, TX
- Eligibility basics
- Ages 14+
- RecruitingHealthy volunteersPhase 2
Smart Walk: A Culturally Tailored Smartphone-Delivered Physical Activity Intervention for African American Women
Arizona State University
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 24–65 · Women only
- RecruitingHealthy volunteers
Adversity, Brain and Opioid Use Study
University of Michigan
- Location
- Ann Arbor, MI
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Exercise Training Intensity and Nitrate Supplementation in Post-Menopausal Females
University of Virginia
- Location
- Charlottesville, VA
- Eligibility basics
- Ages 45–75 · Women only
- RecruitingHealthy volunteers
Gut-Brain Neural Coupling in Spinal Cord Injury
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Assessing and Addressing Health-Related Social Needs Among Families of Children With Cancer
Wake Forest University Health Sciences
- Location
- Winston-Salem, NC
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Social Media Support Groups for Adolescent Vaping Cessation
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 13+
- RecruitingHealthy volunteers
Eating Almonds Before a Meal to Control Blood Sugar
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 25–50
- RecruitingHealthy volunteers
Evaluating How Well Different Types of Light-sensitive Cells in the Eye Contribute to Its Focusing Ability
Rochester Institute of Technology
- Location
- Rochester, NY
- Eligibility basics
- Up to age 35
- RecruitingHealthy volunteers
Randomized Controlled Trial Testing a Training Program About Section 504 of the Rehabilitation Act
Vanderbilt University
- Location
- Nashville, TN
- Eligibility basics
- Ages 12+
- RecruitingHealthy volunteers
Effects of Acute Ketone Supplementation on the Brain
Christopher Crabtree
- Location
- Columbus, OH
- Eligibility basics
- Ages 45–65
- RecruitingHealthy volunteers
PCORI-CER-1306-03385 Lung Cancer Screening Decision Aid Development and Testing
M.D. Anderson Cancer Center
- Location
- Galveston, TX + 1 other US site
- Eligibility basics
- Ages 55–80
- RecruitingHealthy volunteers
Chemotherapy-induced Cognitive and Brain Changes in Older Adults With Breast Cancer
Massachusetts General Hospital
- Location
- Boston, MA + 1 other US site
- Eligibility basics
- Ages 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.