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
Emphysema Research Registry and Biosample Repository
University of Pittsburgh
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteers
Biomarkers in Friedreich's Ataxia
University of Florida
- Location
- Gainesville, FL
- Eligibility basics
- Ages 6–70
- RecruitingHealthy volunteers
Couple-Based Meditation for Metastatic Lung Cancer Patients and Their Partners
M.D. Anderson Cancer Center
- Location
- Houston, TX + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Wake Forest Alzheimer's Disease Clinical Core
Wake Forest University Health Sciences
- Location
- Winston-Salem, NC
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteers
Dyadic Yoga Intervention in Improving Physical Performance and Quality of Life in Patients With Stage I-IV Non-small Cell Lung or Esophageal Cancer Undergoing Radiotherapy and Their Caregivers
M.D. Anderson Cancer Center
- Location
- Houston, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Educating Smokers About Lung Cancer Screening Using Tobacco Quitlines
M.D. Anderson Cancer Center
- Location
- Houston, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Full Vs Partial Weightbearing During the First Six Weeks of Rehab. After Fibular Collateral Ligament Reconstruction
Twin Cities Orthopedics
- Location
- Edina, MN
- Eligibility basics
- Ages 14–59
- RecruitingHealthy volunteers
Non- vs Partial Controlled Weightbearing After Multiple Knee Ligament Reconstruction
Twin Cities Orthopedics
- Location
- Edina, MN
- Eligibility basics
- Ages 14–59
- RecruitingHealthy volunteers
Impact of "Teaching the Teachers" Concept on Global Education and Application of Hepatocellular Carcinoma Diagnosis Guidelines
M.D. Anderson Cancer Center
- Location
- Houston, TX
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Exploring the Role of Neuroactive Steroids in Tourette Syndrome
University of Utah
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 8–12
- RecruitingHealthy volunteers
A Natural History Study of Metabolic Sizing in Health and Disease
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–99
- RecruitingHealthy volunteersPhase 4
Prescription of Letrozole for Uterine Myoma
University of California, San Francisco
- Location
- Los Angeles, CA + 4 other US sites
- Eligibility basics
- Ages 21–53 · Women only
- RecruitingHealthy volunteers
Pulmonary Hypertension and Oxygen Saturation Targeting in Preterm Infants
University of Alabama at Birmingham
- Location
- Birmingham, AL + 1 other US site
- Eligibility basics
- Ages 1 mo–5 mo
- RecruitingHealthy volunteersPhase 4
Sex Differences in Trauma, Inflammation and Brain Function and the Implications for Treatment Efficacy in Alcohol Use Disorder
Milky Kohno
- Location
- Portland, OR
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteers
Thrombosis and Inflammation in Vessels Initiative (TIVI)
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 5–100
- RecruitingHealthy volunteers
Evaluating Occupational Stress in Surgeons and Musicians: A Multi-modal Pilot Study Using Wearable EEG, Biomarker Analysis and Validated Questionnaires
M.D. Anderson Cancer Center
- Location
- Houston, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Walking Sensation Study
University of Florida
- Location
- Gainesville, FL
- Eligibility basics
- Ages 65–95
- RecruitingHealthy volunteers
The Vanguard Study: Testing a New Way to Screen for Cancer
National Cancer Institute (NCI)
- Location
- Pleasanton, CA + 44 other US sites
- Eligibility basics
- Ages 45–75
- RecruitingHealthy volunteers
How Animal and Plant Protein Shakes Change the Body's Nutrient and Health Responses
University of Pittsburgh
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 4
The Effect of Tirzepatide on Menopausal Vasomotor Symptoms and Biological Aging in Post-menopausal Women With Obesity
Mayo Clinic
- Location
- Jacksonville, FL
- Eligibility basics
- Ages 46–60 · Women only
- RecruitingHealthy volunteersPhase 2
Impact of Smell Testing on Health Outcomes
Monell Chemical Senses Center
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 7+
- RecruitingHealthy volunteers
Carbon Dioxide Administration and Brain Waste Clearance
Andrew Mayer
- Location
- Albuquerque, NM
- Eligibility basics
- Ages 18–82
- RecruitingHealthy volunteers
Olfactory Transcranial Focused Ultrasound
Medical University of South Carolina
- Location
- Charleston, SC
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
fMRI Studies of Memory and Perception
Florida State University
- Location
- Tallahassee, FL
- Eligibility basics
- Ages 18–35
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.