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 volunteersPhase 1/Phase 2
Assessing Pulmonary Changes in HSCT
Children's Hospital Medical Center, Cincinnati
- Location
- Cincinnati, OH
- Eligibility basics
- Ages 3+
- RecruitingHealthy volunteersPhase 1
Gamma Oscillations as a Prognostic Marker for Ketamine Therapy in Treatment Resistant Depression
Texas A&M University
- Location
- Houston, TX + 1 other US site
- Eligibility basics
- Ages 21–45
- RecruitingHealthy volunteersPhase 1
PRoMiSS: Psilocybin and the Role of Music in Set and Setting
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–75
- RecruitingHealthy volunteersPhase 1/Phase 2
Use of Hyperpolarized 129Xe MR Lung Imaging in Adults for Calibration
Children's Hospital Medical Center, Cincinnati
- Location
- Cincinnati, OH
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Single-tracer Multiparametric PET Imaging
University of California, Davis
- Location
- Sacramento, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
Iadademstat + SBRT With Atezo in ES-SCLC
Yale University
- Location
- New Haven, CT
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Psilocybin Administration With 5-HT1a Blockade
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21–60
- RecruitingHealthy volunteersEarly Phase 1
Imaging Mitochondrial Complex-I in Cocaine Use Disorder: a [F-18]BCPP-EF PET Study
Rajesh Narendran
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteersPhase 1/Phase 2
Annatto-derived GG for Statin-associated Myopathy
Texas Tech University Health Sciences Center
- Location
- Lubbock, TX
- Eligibility basics
- Ages 40+
- RecruitingHealthy volunteersPhase 1
OMAR Opioid Use Disorder
Yale University
- Location
- New Haven, CT
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersEarly Phase 1
Impact of Early Aging and Menopause on the Vascular Responses to Hypoxia
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18–70 · Women only
- RecruitingHealthy volunteersPhase 1/Phase 2
Study of Cannabidiol and Neuroimaging on Stress
Icahn School of Medicine at Mount Sinai
- Location
- New York, NY
- Eligibility basics
- Ages 18–25
- RecruitingHealthy volunteersEarly Phase 1
Beta3-adrenergic Receptors and Cardiovascular Function in Aging Women
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18–70 · Women only
- RecruitingHealthy volunteersPhase 1
Testing RG1-VLP Vaccine to Prevent HPV-related Cancers
National Cancer Institute (NCI)
- Location
- Madison, WI
- Eligibility basics
- Ages 18–60 · Women only
- RecruitingHealthy volunteersPhase 1
Exploring the Utility of [18F]3F4AP for Demyelination Imaging
Yale University
- Location
- New Haven, CT
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteersPhase 1
A Study of Psychedelics in Healthy Older Adults With Low Well-being
Jennifer Mitchell
- Location
- San Francisco, CA
- Eligibility basics
- Ages 50–85
- RecruitingHealthy volunteersPhase 1
Evaluation of Oral THC and CBD in Men and Women
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 21–55
- RecruitingHealthy volunteersPhase 1
Vaporized Cannabis Administration and Co-Administration of Alcohol on Impairment
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteersEarly Phase 1
Randomized Directly Observed Therapy Study to Interpret Clinical Trials of Doxy-PEP
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 1
High Potency Cannabis: Acute and Protracted Effects
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 21–55
- RecruitingHealthy volunteersEarly Phase 1
Sympathetic Transduction in Obesity-associated Hypertension (OB-HTN)
University of Texas Southwestern Medical Center
- Location
- Dallas, TX
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
The Pharmacokinetics of a Hemp-Based Topical Product
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteersPhase 1
Alpelisib Challenge Test (ACT)
Columbia University
- Location
- New York, NY
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersEarly Phase 1
Zinc Oxide Versus Petrolatum Following Skin Surgery
Melissa Pugliano-Mauro
- Location
- Pittsburgh, PA, PA
- Eligibility basics
- Ages 18+
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.