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
Effects of Clear Speech on Listening Effort and Memory in Sentence Processing
University of Utah
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 60–90
- RecruitingHealthy volunteers
Safety and Feasibility of an ExoNET for Supination Assistance for Stroke Survivors
Shirley Ryan AbilityLab
- Location
- Chicago, IL
- Eligibility basics
- Ages 40–70
- RecruitingHealthy volunteers
Neurobehavioral Therapy For Epilepsy And Major Depressive Disorder
The University of Texas Health Science Center, Houston
- Location
- Houston, TX + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Effects of Caffeine on Reinforcement Learning in Healthy Adults Using PET/MRI
Hsiao-Ying Wey
- Location
- Charlestown, MA
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Investigating the Efficacy of OMT to Recover Olfactory Perception After COVID-19
Burrell College of Health Sciences
- Location
- Las Cruces, NM
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Transcranial Direct Current Stimulation (tDCS) With Verb Network Strengthening Treatment (VNeST) in Chronic Aphasia
City University of New York
- Location
- New York, NY
- Eligibility basics
- Ages 21–80
- RecruitingHealthy volunteers
The Dream Team: Testing Implementation of a Sleep Intervention for Perinatal Women Delivered by Direct Care Workers
Rhode Island Hospital
- Location
- Providence, RI
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteers
The Treatment in Pregnancy for Hepatitis C ("TiP-HepC") Registry
The Task Force for Global Health
- Location
- Atlanta, GA
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Sentence Production Training in Aphasia
Purdue University
- Location
- West Lafayette, IN
- Eligibility basics
- Ages 21–85
- RecruitingHealthy volunteersPhase 4
Transvaginal Versus Fluoroscopy-guided Trans Gluteal Pudendal Nerve Block for Pudendal Neuralgia
University of Louisville
- Location
- Louisville, KY
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
The Role of the Time of Day in the Effects of Exercise on Memory in Heathy Young Adults
University of North Carolina, Greensboro
- Location
- Greensboro, NC
- Eligibility basics
- Ages 18–25
- RecruitingHealthy volunteers
Creative Arts Program to Reduce Burnout in Healthcare Professionals
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–85
- RecruitingHealthy volunteers
CYP2C19 Variants and Limonene Metabolism
Stanford University
- Location
- Stanford, CA
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Postpartum Intervention for Mothers With Opioid Use Disorders
Stony Brook University
- Location
- Ann Arbor, MI + 1 other US site
- Eligibility basics
- Ages 18–50 · Women only
- RecruitingHealthy volunteers
Upper and Lower Extremity Exercise and Exercise-Induced Hypoalgesia in Knee Osteoarthritis
University of Texas, El Paso
- Location
- El Paso, TX
- Eligibility basics
- Ages 45–90
- RecruitingHealthy volunteers
TPAD for Recovery of Standing After Severe SCI
Kessler Foundation
- Location
- West Orange, NJ
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 2
Effects of Oral Tranexamic Acid Following Total Knee Arthroplasty
Matthew Grosso, MD
- Location
- Hartford, CT
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteers
Noninvasive Brain Stimulation in Adult Amblyopia
Midwestern University
- Location
- Downers Grove, IL
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Blood Warming in Preterm Infants to Decrease Hypothermia
University of South Carolina
- Location
- Columbia, SC
- Eligibility basics
- Ages 6 mo–7 mo
- RecruitingHealthy volunteers
Effect of Intradetrusor onabotulinumtoxinA Injection Versus Conservative Management on Female Sexual Function in Patients With Bladder Pain Syndrome
Walter Reed National Military Medical Center
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–99 · Women only
- RecruitingHealthy volunteersPhase 2
Changes in Hemorrhage With Prophylactic Oxytocin for Dilation and Evacuation
University of Colorado, Denver
- Location
- Denver, CO
- Eligibility basics
- Ages 18–55 · Women only
- RecruitingHealthy volunteers
Enhancing Language Function in Aphasia
University of Arizona
- Location
- Tucson, AZ
- Eligibility basics
- Ages 21–80
- RecruitingHealthy volunteers
Young Adult Education on Alcohol & Health
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–24 · Women only
- RecruitingHealthy volunteersPhase 2
Effects of an Antioxidant Supplement on Blood Vessel Health
University of Georgia
- Location
- Athens, GA
- Eligibility basics
- Ages 18–75
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.