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
Energy Dense Fueling for Cold-Weather Operations
United States Army Research Institute of Environmental Medicine
- Location
- Natick, MA
- Eligibility basics
- Ages 18–39
- RecruitingHealthy volunteers
Pituitary Tumor Surveillance: Pathogenic Correlation
Cedars-Sinai Medical Center
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Femoral Peri-arterial Local Anesthetic Injection Via Peri-arterial Perineural Catheter Reverses Tourniquet Associated Ischemic Hypertension
Duke University
- Location
- Durham, NC
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Role of Microvascular Insulin Resistance and Cardiorespiratory Fitness Diabetes
University of Colorado, Denver
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 30–55
- RecruitingHealthy volunteers
Metabolism and Sleep Apnea Treatment
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Preoperative Weight Loss for Open Abdominal Wall Reconstruction
Benjamin T. Miller
- Location
- Chicago, IL + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Implementing a Scalable Smoke-free Home Intervention in Armenia and Georgia
George Washington University
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Efficacy Trial of Healthy Together ("Juntos")
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Ages 12–15
- RecruitingHealthy volunteers
De-escalation of Adjuvant Radiation for Low-Risk HPV Oropharyngeal Cancers
Georgetown University
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Mechanism of Ketogenic Diet-Induced Hypercholesterolemia
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–39
- RecruitingHealthy volunteers
Kaempferol Absorption and Pharmacokinetics Evaluation
University of Pittsburgh
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 2
Fasted vs. Fed State Exercise
Arkansas Colleges of Health Education
- Location
- Fort Smith, AR
- Eligibility basics
- Ages 18–59
- RecruitingHealthy volunteers
Clinical Research in ALS Study
University of Miami
- Location
- Miami, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Effects of Breathing Mild Bouts of Low Oxygen on Limb Mobility After Spinal Injury
Spaulding Rehabilitation Hospital
- Location
- Cambridge, MA
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteersPhase 2
Impact of Tamsulosin on Post-Operative Urinary Retention Following Pelvic Reconstructive Surgery
Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
3D-Printed Versus Laboratory-Fabricated Hyrax Expanders
Ildeu Andrade Jr.
- Location
- Pittsburgh, PA + 1 other US site
- Eligibility basics
- Ages 8–13
- RecruitingHealthy volunteers
Midwest Birth Outcomes and Indigenous American Pregnancy
Sanford Health
- Location
- Fargo, ND + 1 other US site
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Fibulink Syndesmosis Repair System With Early Full-Weight Bearing
Maimonides Medical Center
- Location
- Brooklyn, NY
- Eligibility basics
- Ages 22+
- RecruitingHealthy volunteers
Leadership Training Affect Physician Career Satisfaction
Methodist Health System
- Location
- Dallas, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Measuring Protein Turnover in Humans Across the Lifespan by Metabolic Labeling With Deuterium Oxide
National Institute on Aging (NIA)
- Location
- Baltimore, MD
- Eligibility basics
- Ages 20–120
- RecruitingHealthy volunteersPhase 4
Reduced Immunosuppression in Older Renal Transplant Recipients With Trugraf®/TRAC Monitoring (RIOT Trial): A Prospective, Randomized, Multicenter Trial.
Mayo Clinic
- Location
- Phoenix, AZ + 2 other US sites
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteers
To Compare Post-Extraction Use of a Novel Ethylenediaminetetraacetic Acid (EDTA) Post-operative Mouth Rinse and Daily Use EDTA Mouth Rinse and Standard 0.12% Chlorhexidine (CHX) Post-operative Mouth Rinse and Daily Use…
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18–85
- RecruitingHealthy volunteers
Cerebellar Stimulation and Cognitive Control
Krystal Parker, PhD
- Location
- Iowa City, IA
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
Speech-in-noise Perception in Autism and Fragile X
Children's Hospital Medical Center, Cincinnati
- Location
- Cincinnati, OH
- Eligibility basics
- Ages 15–35
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.