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
Muscle O2 Saturation and Hemoglobin Levels During Rehabilitation From Arthroscopic Surgery
University Hospitals Cleveland Medical Center
- Location
- Cleveland, OH
- Eligibility basics
- Ages 14–30
- RecruitingHealthy volunteers
The Impact of Expressive Emotional Writing on Facilitating Grief Resolution in Adults With Spinal Cord Injury
University of Alabama at Birmingham
- Location
- Birmingham, AL
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
THRIVE Well Cancer FDTN/Exercise_Creatine Supplementation
The University of Texas Medical Branch, Galveston
- Location
- Galveston, TX
- Eligibility basics
- Ages 18–75 · Women only
- RecruitingHealthy volunteers
Effects of E-cigarette Use on Health
University of Wisconsin, Madison
- Location
- Madison, WI
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteers
The Ohio State University (OSU) SCREEN Community Program
Ohio State University Comprehensive Cancer Center
- Location
- Columbus, OH
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteersPhase 2
Progesterone in Gender Affirming Hormone Therapy Study
Emory University
- Location
- Atlanta, GA
- Eligibility basics
- Ages 18–60 · Men only
- RecruitingHealthy volunteers
Studying Flavors and Cooling Agents in Oral Nicotine Pouches to Understand User Preferences
Ohio State University Comprehensive Cancer Center
- Location
- Columbus, OH
- Eligibility basics
- Ages 21+
- RecruitingHealthy volunteers
Towards Restoring Complex Movement After Paralysis: Algorithm Development With Healthy Participants
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Clinical and Radiographic Success of MTA vs Biodentine
Geisinger Clinic
- Location
- Danville, PA
- Eligibility basics
- Ages 2–12
- RecruitingHealthy volunteers
Eccentric Muscle Training, Stimulation, and Biomarkers in SCI
Ohio State University
- Location
- Columbus, OH
- Eligibility basics
- Ages 18–85
- RecruitingHealthy volunteers
Reading Outcomes in Children With Vestibular Loss
Father Flanagan's Boys' Home
- Location
- Omaha, NE
- Eligibility basics
- Ages 7–18
- RecruitingHealthy volunteers
Imaging-based Assessment of Oral Biofilm and Gingival Health
University of California, Irvine
- Location
- Irvine, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Optimal Digital Weight Loss Treatment for Rural Individuals
University of South Carolina
- Location
- Columbia, SC
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
CGM for the Early Detection and Management of Hyperglycemia in Pregnancy
Jaeb Center for Health Research
- Location
- Birmingham, AL + 7 other US sites
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Using the Smart Underwear Device to Determine a Baseline of Flatus Activity Normalized to Fiber Intake
University of Maryland, College Park
- Location
- College Park, MD
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Executive Function Training for Children and Adolescents
Northeastern University
- Location
- Boston, MA
- Eligibility basics
- Ages 12–17
- RecruitingHealthy volunteers
Efficacy of Lavender Aromatherapy on Anxiety and Pain Reduction During Awake Otolaryngologic Procedures
Cedars-Sinai Medical Center
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Imaging Histone Deacetylase in the Heart
Massachusetts General Hospital
- Location
- Boston, MA
- Eligibility basics
- Ages 18–85
- RecruitingHealthy volunteers
BrainWeighve App Feasibility Study
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 14–21
- RecruitingHealthy volunteers
US Imaging for the Assessment of LUTS
University of Wisconsin, Madison
- Location
- Madison, WI
- Eligibility basics
- Ages 18–80 · Men only
- RecruitingHealthy volunteers
Understanding Aided Speech Perception in Noise
University of South Florida
- Location
- Tampa, FL
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteersPhase 4
ANG-First Trial (Angiotensin II as First-Line Vasopressor Therapy in Cardiac Surgery)
University of Maryland St. Joseph Medical Center
- Location
- Towson, MD
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersPhase 4
Ketorolac Effects on Post-operative Pain and Lumbar Fusion
University of Maryland St. Joseph Medical Center
- Location
- Towson, MD
- Eligibility basics
- Ages 18–85
- RecruitingHealthy volunteers
RCT for Latina Mental Health Using Web-Based Apps
University of California, Los Angeles
- Location
- Los Angeles, CA
- 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.