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
Assessing Immune Dysfunction in Sepsis
University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
PrEP4U: Assessing the Effectiveness of Integrated Same-Day Lenacapavir Initiation and Follow-up Choice on PrEP Persistence
Massachusetts General Hospital
- Location
- Boston, MA + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
High Frequency Stimulation to Improve Cognition, Mobility, and Affect in Individuals With and Without Subjective Cognitive Decline
University of Florida
- Location
- Gainesville, FL
- Eligibility basics
- Ages 65–89
- RecruitingHealthy volunteers
Early Dental Risk Screening for Pediatric Sleep-Disordered Breathing
University of North Carolina, Chapel Hill
- Location
- Chapel Hill, NC
- Eligibility basics
- Ages 8–13
- RecruitingHealthy volunteers
Developing Biomarker-Supported Schizophrenia Spectrum Disorder (SSD) Prevention
The University of Texas Health Science Center, Houston
- Location
- Houston, TX
- Eligibility basics
- Ages 9–19
- RecruitingHealthy volunteers
Optimizing Lymphatic Pumping for Influenza Vaccine Responses in Vulnerable Populations
Lake Erie College of Osteopathic Medicine
- Location
- Erie, PA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
The Impact of Osteopathic Manipulative Treatment on Pelvic Floor Dysfunction, Activity, and Gait in Female Runners
Elizabeth Perrero
- Location
- Lexington, KY
- Eligibility basics
- Ages 18–35 · Women only
- RecruitingHealthy volunteers
Effectiveness of an 8-week Independent Cadence Retraining Program on Stress Urinary Incontinence in Parous Runners.
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Evaluation of Patients With HAM/TSP
National Institute of Neurological Disorders and Stroke (NINDS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–120
- RecruitingHealthy volunteers
Screening for LID Clinical Studies Unit Healthy Volunteer Protocols
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Cell Collection to Study Eye Diseases
National Eye Institute (NEI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 0 mo–120
- RecruitingHealthy volunteers
Studies of Dermatologic Diseases Biospecimen Acquisition Protocol
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 0 mo–100
- RecruitingHealthy volunteers
Molecular, Cellular, and Genetic Characterization of Human Adipose Tissue and Its Role in Metabolism
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
Pre-diabetes in Subject With Impaired Fasting Glucose (IFG) and Impaired Glucose Tolerance (IGT)
The University of Texas Health Science Center at San Antonio
- Location
- San Antonio, TX
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Natural History, Pathogenesis, and Outcome of Autoinflammatory Diseases (NOMID/CAPS, DIRA, CANDLE, SAVI, NLRC4-MAS, Still'S-like Diseases, and Other Undifferentiated Autoinflammatory Diseases)
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Up to age 99
- RecruitingHealthy volunteers
The Beneficial Effects of Naps on Motor Learning
National Institute of Neurological Disorders and Stroke (NINDS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Metabolic Profiling of Immune Responses in Immune-mediated Diseases
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteersPhase 4
Pioglitazone on Heart Failure in Type-2 Diabetes Mellitus Participants
The University of Texas Health Science Center at San Antonio
- Location
- San Antonio, TX
- Eligibility basics
- Ages 30–70
- RecruitingHealthy volunteers
Video-based Patient Education Intervention for Diabetic Eye Screening in Latinx Communities
University of Wisconsin, Madison
- Location
- Madison, WI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
CHOICE to AVOID or RESIST
Cedars-Sinai Medical Center
- Location
- Beverly Hills, CA
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Impact of Lean Pork on Endothelial Function in Perimenopause
Pennington Biomedical Research Center
- Location
- Baton Rouge, LA
- Eligibility basics
- Ages 40–55 · Women only
- RecruitingHealthy volunteers
A Community Health Intervention to Improve Lung Cancer Screening Uptake in Community Health Centers
Baystate Medical Center
- Location
- Springfield, MA
- Eligibility basics
- Ages 50–80
- RecruitingHealthy volunteers
Predicting Pre-dementia
Prevention Research Consortium Corp.
- Location
- San Diego, CA
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteers
Supporting Just-In-Time Consent for Prenatal Screening: The INFORM Study
Case Western Reserve University
- Location
- San Francisco, CA + 2 other US sites
- Eligibility basics
- Ages 18+ · 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.