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 volunteersPhase 1
Tranexamic Acid in Rhinoplasty: Perioperative Bleeding, Edema and Ecchymosis
Vanderbilt University Medical Center
- Location
- Nashville, TN
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
Hyperpolarized 129Xe MR Imaging of Lung Function in Healthy Volunteers and Subjects With Pulmonary Disease
Mario Castro, MD, MPH
- Location
- Kansas City, KS
- Eligibility basics
- Ages 3+
- RecruitingHealthy volunteersEarly Phase 1
Combination of Tagraxofusp With Pacritinib in Patients With Intermediate-1 or Higher Myelofibrosis, Who Have Had Prior Therapy With the Approved JAK Inhibitors or in Which Therapy With the Approved JAK Inhibitors is Not…
University of Kansas Medical Center
- Location
- Fairway, KS
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Transcranial Magnetic Stimulation Treatment for Alzheimer's Disease
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 40–99
- RecruitingHealthy volunteersEarly Phase 1
Effect of Melatonin on Sleep Patterns of Resident Trainees During Night Float Shift
University of Virginia
- Location
- Charlottesville, VA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
PET Imaging CCR2 in Lung Inflammation
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteersOvernight stay mentioned
Sickle Cell Disease and the Genomic and Gene Therapy Needs of Stakeholders
St. Jude Children's Research Hospital
- Location
- Memphis, TN
- Eligibility basics
- Ages 13+
- RecruitingHealthy volunteersEarly Phase 1
Cannabis Use, Cognition, and the Endocannabinoid System in HIV
University of California, San Diego
- Location
- San Diego, CA
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersEarly Phase 1
The Potential of Oxytocin to Reduce Opioid Abuse Liability and Pain Among Older Adults
University of Florida
- Location
- Gainesville, FL
- Eligibility basics
- Ages 45–85
- RecruitingHealthy volunteersEarly Phase 1
Quadriceps Motor Unit Adaptation to Simulated Knee Injury
University of Central Florida
- Location
- Orlando, FL
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteersPhase 1
NMDA Receptor Antagonist Nitrous Oxide Targets Affective Brain Circuits
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1
Gender Related Differences in the Acute Effects of Delta-9-Tetrahydrocannabinol in Healthy Humans: Sub-Study II
Yale University
- Location
- West Haven, CT
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersEarly Phase 1
Cannabidiol Effects on Learning and Anxiety
University of Connecticut
- Location
- Storrs, CT
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersPhase 1/Phase 2
Lipomas Treated With Subcutaneous Injections of Cooled or Warmed Sodium Chloride
West Virginia University
- Location
- Morgantown, WV
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Mental Health in Veterans and Families After Group Therapies
Soul Medicine Institute
- Location
- Santa Rosa, CA
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersEarly Phase 1
Study of Biodistribution, Metabolism, Excretion and Brain Uptake11C-M503
University of Pennsylvania
- Location
- New Haven, CT + 2 other US sites
- Eligibility basics
- Ages 40–85
- RecruitingHealthy volunteersPhase 1/Phase 2
FACE Phase II (a Stage II Trial)
Stanford University
- Location
- Palo Alto, CA
- Eligibility basics
- Ages 60–89
- RecruitingHealthy volunteersPhase 1/Phase 2
Clinical Trials of Multivalent Opioid Vaccine Components
New York State Psychiatric Institute
- Location
- Eatontown, NJ
- Eligibility basics
- Ages 18–59
- RecruitingHealthy volunteersPhase 1
Safety and Immunogenicity of Ad4-HIV Envelope Vaccine Vectors in Healthy Volunteers
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1/Phase 2
Neural Response to Inflammatory Challenge in Major Depressive Disorder
Laureate Institute for Brain Research, Inc.
- Location
- Tulsa, OK
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1
Microelectrode Recordings From the Vagus Nerve in Awake Humans
University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteersPhase 1/Phase 2
Rh-PDGF vs EMD for Treatment of Intra-bony Defects
Nova Southeastern University
- Location
- Davie, FL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
Comparative Analysis of Biotinylated, Irradiated and 51-Chromium Radiolabeled Red Blood Cells for Analysis of Recovery and Survival After Autologous Transfusion
Jose Cancelas
- Location
- Cincinnati, OH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersOvernight stay mentioned
Circadian Rhythms in Human Adipose
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18–55
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.