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
RHI Interval Effects on Brain Health
Indiana University
- Location
- Bloomington, IN
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteersPhase 4
Betadine vs Sterile Water for Periurethral Preparation
University of Louisville
- Location
- Louisville, KY + 1 other US site
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Effects of a 5-Week Probiotic Supplementation Intervention on Markers of Delayed Onset Muscle Soreness
University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteers
Increasing Lung Cancer Screening Uptake Among Emergency Department Patients
University of Rochester
- Location
- Rochester, NY
- Eligibility basics
- Ages 50–80
- RecruitingHealthy volunteers
Emergency Department-based Cervical Cancer Screening Through Self-sampling
University of Rochester
- Location
- Rochester, NY
- Eligibility basics
- Ages 30–65 · Women only
- RecruitingHealthy volunteers
The Use of Lymph Node Biopsies to Support HIV Pathogenesis Studies
University of California, San Francisco
- Location
- San Francisco, CA
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Peripheral Blood Flow Responses to Electromagnetic Energy
University of Alabama at Birmingham
- Location
- Milwaukee, WI
- Eligibility basics
- Ages 18–59
- RecruitingHealthy volunteers
Tumor Cell and DNA Detection in the Blood, Urine and Bone Marrow of Patients With Solid Cancers
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Characterization of the Microbiome in Cutaneous T Cell Lymphoma
Northwestern University
- Location
- Chicago, IL
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteers
Non-invasive BCI-controlled Assistive Devices
University of Texas at Austin
- Location
- Austin, TX
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
A Culturally Tailored Smartphone Application for African American Smokers
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Child-Adult Relationship Enhancement in Primary Care (PriCARE) / Criando Niños Con CARIÑO (CARIÑO)
University of North Carolina, Chapel Hill
- Location
- Chapel Hill, NC
- Eligibility basics
- Ages 1–99
- RecruitingHealthy volunteers
Acute Normovolemic Hemodilution on Urine Neutrophil Gelatinase-associated Lipocalin Levels
University of Maryland, Baltimore
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 2
Effects of Cannabidiol and Tetrahydrocannabinol on Microbiome and Neuroinflammation in HIV
University of California, San Diego
- Location
- San Diego, CA
- Eligibility basics
- Ages 21–70
- RecruitingHealthy volunteers
Determinants of Insulin Sensitivity by Age, Sex, Race/Ethnicity, BMI, and PCOS Diagnosis
Ali Chappell
- Location
- Houston, TX
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Adipose Tissue Blood Flow in Aging Humans
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Women Focused Encounters for Resilience Independence Strength and Eudaimonia
University of California, San Diego
- Location
- San Diego, CA
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Implementing Scalable, PAtient-centered, Team-based, Technology-enabled Care for Adults With Type 2 Diabetes (iPATH)
Stanford University
- Location
- Stanford, CA + 2 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Blood Flow Restriction Training for People With Disabilities
Medical College of Wisconsin
- Location
- Milwaukee, WI
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Timing of Energy Availability on Menstrual Cycle Function
University of Colorado, Colorado Springs
- Location
- Colorado Springs, CO
- Eligibility basics
- Ages 18–40 · Women only
- RecruitingHealthy volunteers
Avoidance-driven Decision Making and Learning in Anorexia Nervosa and Bulimia Nervosa
University of California, San Diego
- Location
- La Jolla, CA
- Eligibility basics
- Ages 18–39 · Women only
- RecruitingHealthy volunteers
Daoist Zhanzhuang and Human Flourishing
University of North Carolina, Charlotte
- Location
- Charlotte, NC
- Eligibility basics
- Ages 18–25
- RecruitingHealthy volunteersPhase 2/Phase 3
Efficacy of a Smartphone-Based JITAI to Reduce Drinking Among Adults Experiencing Homelessness
University of Oklahoma
- Location
- Oklahoma City, OK
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Music Use in Parturients Admitted to Labor & Delivery
Tufts Medical Center
- Location
- Boston, MA
- 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.