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.
4,995 recruiting studiesSource: ClinicalTrials.gov, refreshed October 27, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteersEarly Phase 1
Understanding Disorder-specific Neural Pathophysiology in Laryngeal Dystonia and Voice Tremor
Massachusetts Eye and Ear Infirmary
- Location
- Boston, MA
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 1
Delayed Immunological Tolerance in Patients With Well-functioning Pre-existing HLA-matched Kidney Transplants
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Trigeminal Evoked Responses to Improve Rhizotomy
University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Early Neurovascular Adaptations in Aging Women
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18–70 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Study of Biodistribution, Metabolism, Excretion and Brain Uptake of 11C-HY-2-15
University of Pennsylvania
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 40–80
- RecruitingHealthy volunteersEarly Phase 1
Bone Marrow Derived Stem Cells Mobilization for Treatment of Abnormal Endometrium
Hugh Taylor
- Location
- Orange, CT
- Eligibility basics
- Ages 18–40 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Differing Levels of Hypoglycemia
University of Maryland, Baltimore
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
Cannabidiol (CBD) in Adults With ASD
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
Applying pGz in Mitochondrial Disease
Children's Hospital of Philadelphia
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 10–60
- RecruitingHealthy volunteersPhase 1/Phase 2
ACTION: Trial of Adding Buprenorphine, CBT, and TMS to Improve Outcomes of Long-Term Opioid Therapy for Chronic Pain
Medical University of South Carolina
- Location
- Charleston, SC
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1/Phase 2
Assess Fibrin in Brains With AD/ADRD
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 55–90
- RecruitingHealthy volunteersEarly Phase 1
Role of Autophagy in Type 2 Diabetes Microvascular Dysfunction
Medical College of Wisconsin
- Location
- Milwaukee, WI
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersEarly Phase 1
Predictors of Aspirin Failure in Preeclampsia Prevention
Rockefeller University
- Location
- New York, NY
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteersEarly Phase 1
Mapping Auricular Vagus Nerve Circuitry
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1
Investigating the Persisting Effects of a Single Dose of Psilocybin on Structural Plasticity in Healthy Older Adults
University of California, Berkeley
- Location
- Berkeley, CA
- Eligibility basics
- Ages 60–85
- RecruitingHealthy volunteersPhase 1
Repetitive Transcranial Magnetic Stimulation for Post-concussion Headaches
State University of New York - Upstate Medical University
- Location
- Syracuse, NY
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
Pilot Study to Identify the Mediators and Inflammatory Cell Surface Receptors Involved in Allergic Airway Inflammation
Benjamin Medoff
- Location
- Boston, MA
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersPhase 1
Clinical Trial to Evaluate the Safety and Immunogenicity of a Priming Regimen of 426c.Mod.Core-C4b Followed by HxB2.WT.Core-C4b Boosts, Both Adjuvanted With 3M-052 AF + Alum, in Adult Participants Without HIV and in…
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Decatur, GA + 1 other US site
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1/Phase 2
Advair HFA in Healthy and HAPE Predisposed Subjects
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersEarly Phase 1
Vocal Emotion Communication With Cochlear Implants
Father Flanagan's Boys' Home
- Location
- Tempe, AZ + 2 other US sites
- Eligibility basics
- Ages 6–80
- RecruitingHealthy volunteersPhase 1
1726-nm Laser for Acne Inversa (Hidradenitis Suppurativa)
Wynn Medical Center
- Location
- Rosemead, CA
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteersEarly Phase 1
Sympathetic Vascular Transduction Across the Menopause Transition: Contributing Mechanisms
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18–70 · Women only
- RecruitingHealthy volunteersPhase 1/Phase 2
Dex +/- Caffeine Sedation in a Post-MRI Recovery in a Pediatric Population
University of Chicago
- Location
- Chicago, IL
- Eligibility basics
- Ages 3–12
- RecruitingHealthy volunteersPhase 1
Azithromycin Before Induction
Arrowhead Regional Medical Center
- Location
- Colton, CA
- Eligibility basics
- Ages 18–45 · 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.