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
Human-Machine System for the H2 Lower Limb Exoskeleton
University of Houston
- Location
- Houston, TX
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Improving Access and Affordability of Adult Hearing Healthcare
University of Alabama, Tuscaloosa
- Location
- Tuscaloosa, AL
- Eligibility basics
- Ages 40+
- RecruitingHealthy volunteersPhase 4
Iron Deficiency Anemia (IDA) and the Brain
Children's Hospital Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 16–60 · Women only
- RecruitingHealthy volunteers
Embo Registry; National Registry for Artery Embolization
Vascular Solutions of North Carolina
- Location
- Cary, NC + 1 other US site
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Reducing Urban Cervical Cancer Disparities
Fox Chase Cancer Center
- Location
- New Brunswick, NJ + 2 other US sites
- Eligibility basics
- Ages 18–90 · Women only
- RecruitingHealthy volunteers
An Evaluation of LASIK, SMILE and PRK Surgery in Physicians
Stanford University
- Location
- Palo Alto, CA
- Eligibility basics
- Ages 21–62
- RecruitingHealthy volunteers
Standardized Yoga & Meditation Program for Stress Reduction for Adolescents With Irritable Bowel Syndrome
The Cooper Health System
- Location
- Camden, NJ
- Eligibility basics
- Ages 12–21
- RecruitingHealthy volunteers
Blood Flow Restriction Training on Upper Extremity Grip Strength
Casa Colina Hospital and Centers for Healthcare
- Location
- Pomona, CA
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteers
Chronic Cannabis Smoking, Oxidative Stress and the Pulmonary Innate Immune Response
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Influence of Fast and Slow Imagined Muscle Contractions on Muscle Function or Central Nervous System Properties
Kennesaw State University
- Location
- Kennesaw, GA
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteersPhase 2
This Study is Evaluating a New Radiation Treatment Technique for Patients Who Have Had Prostate Cancer, Undergone Surgery for Cancer, and Then Have Evidence That Their Prostate Cancer Has Returned.
University of Rochester
- Location
- Rochester, NY
- Eligibility basics
- Ages 18+ · Men only
- RecruitingHealthy volunteers
Molecular Optimization Via Exercise (MOVE)
Buck Institute for Research on Aging
- Location
- Novato, CA
- Eligibility basics
- Ages 65–80
- RecruitingHealthy volunteersPhase 2
PrEPsmart 2-1-1 Pilot
Public Health Foundation Enterprises, Inc.
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18+ · Men only
- RecruitingHealthy volunteers
Non-invasive Evaluation of Upper and Lower Body Function With Showmotion
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 4
Preemptive Ibuprofen Effects on Pain Perception Following Extraction and Bone Graft
Marquette University
- Location
- Milwaukee, WI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Optimized Tailored Interventions in Metabolic and Lifestyle Outcomes (OPTIMAL)
University of Illinois at Urbana-Champaign
- Location
- Urbana, IL
- Eligibility basics
- Ages 45–64
- RecruitingHealthy volunteers
Exercise Neuroprotection in Parkinson's Disease
University of Nevada, Las Vegas
- Location
- Las Vegas, NV
- Eligibility basics
- Ages 30–85
- RecruitingHealthy volunteers
Neurocognitive Mechanisms of Sentence Production Impairment in Aphasia
University of Maryland, College Park
- Location
- College Park, MD
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Pharmacogenetically-guided Escitalopram Treatment for Pediatric Anxiety: Aiming to Improve Safety and Efficacy (PrEcISE)
University of Cincinnati
- Location
- Cincinnati, OH
- Eligibility basics
- Ages 12–17
- RecruitingHealthy volunteers
Next Generation Chest X-Ray Tomosynthesis for Screening of Lung Cancer
University of California, San Diego
- Location
- San Diego, CA
- Eligibility basics
- Ages 30–85
- RecruitingHealthy volunteers
Liquid Biopsies in Pediatric Solid Tumors
Children's Hospital Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 6 mo+
- RecruitingHealthy volunteers
Multicenter Outcome Registry of AnaLgesic Effect of SCS(MORALES) Registry Protocol
Cardio Surgical Partners
- Location
- Reno, NV
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Role of Endothelial Function in SCI CVD Risk
Craig Hospital
- Location
- Englewood, CO
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteersPhase 4
Vaginal Estradiol vs Oral Beta-3 Agonist for Overactive Bladder Syndrome
Walter Reed National Military Medical Center
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18+ · 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.