Who can join
Studies for younger adults
These studies accept adults from 21 or younger and set an upper age limit of 45 or below, so they are aimed at younger adults. Being in the age range does not mean you qualify; screening decides.
674 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteers
Impact of Sleep Restriction on Blood Pressure Reactivity
University of Missouri-Columbia
- Location
- Columbia, MO
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
iPAWS: Improving Pain Management After Wisdom Tooth Extraction Surgery
Brown University
- Location
- Providence, RI
- Eligibility basics
- Ages 15–20
- RecruitingHealthy volunteers
Physiologic Measure of VIPN
Children's National Research Institute
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 6–18
- RecruitingHealthy volunteers
Role of Acetaldehyde in the Development of Oral Cancer
Masonic Cancer Center, University of Minnesota
- Location
- Minneapolis, MN
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
A Study of TopSpin360 Training Device
Mayo Clinic
- Location
- Rochester, MN
- Eligibility basics
- Ages 18–21
- RecruitingHealthy volunteers
Acute Effects of Neurodynamics on Strength and Endurance in Athletes
High Point University
- Location
- High Point, NC
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteersPhase 2
Convergent Mechanisms Underlying Reprometabolic Syndrome in Women
University of Colorado, Denver
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 18–38 · Women only
- RecruitingHealthy volunteers
Auditory Biofeedback Gait Training Individuals With Chronic Ankle Instability
Danielle Torp
- Location
- Lexington, KY
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Transforming Adolescent Perception and Mental Health Through Meditation and Cognitive Reappraisal A Mixed Method Study
Beth Israel Deaconess Medical Center
- Location
- Boston, MA
- Eligibility basics
- Ages 15–18
- RecruitingHealthy volunteers
An Acceptance-Based Healthy Lifestyle Intervention for Diverse Adolescents
Nemours Children's Clinic
- Location
- Philadelphia, PA
- Eligibility basics
- Ages 14–19 · Women only
- RecruitingHealthy volunteers
HAVEN-Connect Youth Suicide Prevention
George Washington University
- Location
- New York, NY + 1 other US site
- Eligibility basics
- Ages 13–19
- RecruitingHealthy volunteers
Supporting Adolescent Alcohol Treatment With Computer-Based ('Path180') Skills Training
Brown University
- Location
- Providence, RI
- Eligibility basics
- Ages 13–19
- RecruitingHealthy volunteers
DNA Repair Activity in the Skin of Day and Night Shift Workers
Wright State University
- Location
- Fairborn, OH
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Transcranial Magnetic Stimulation (TMS) to Treat Depression in Autism Spectrum Disorder
Yale University
- Location
- New Haven, CT
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteersPhase 4
Oral Contraceptive Pill (OCP) Pharmacogenomics
Yale University
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
Social Facilitation of Emotion Regulation in Adolescence
University of California, Los Angeles
- Location
- Los Angeles, CA
- Eligibility basics
- Ages 13–25
- RecruitingHealthy volunteers
Speech Motor Learning and Retention (Aim 3)
Yale University
- Location
- New Haven, CT
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Assessment and Educational Intervention to Reduce Ultra-processed Food Consumption in Pediatric Patients With IBD
Connecticut Children's Medical Center
- Location
- Hartford, CT
- Eligibility basics
- Ages 10–21
- RecruitingHealthy volunteers
Game-Based Intervention to Reduce Alcohol Use Among Youth
University of Pittsburgh
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 14–18
- RecruitingHealthy volunteers
Sleep and Emotion Processing in Adolescent Post-traumatic Stress Disorder
University of Wisconsin, Madison
- Location
- Madison, WI
- Eligibility basics
- Ages 14–18
- RecruitingHealthy volunteers
Health-E You Efficacy Trial for Male Adolescents
Johns Hopkins University
- Location
- Oakland, CA + 7 other US sites
- Eligibility basics
- Ages 13–21 · Men only
- RecruitingHealthy volunteersPhase 2
Effect of Ketone Esters on Liver Fat Content and Metabolic Function
Washington University School of Medicine
- Location
- St Louis, MO
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
MicroRNAs as Biomarkers in First Episode Schizophrenia
Northwell Health
- Location
- Glen Oaks, NY
- Eligibility basics
- Ages 15–40
- RecruitingHealthy volunteers
Neural-Derived Plasma Exosomal MicroRNAs As Promising Novel Biomarkers for Suicidality and Treatment Outcome in Adolescents
University of Alabama at Birmingham
- Location
- Birmingham, AL + 1 other US site
- Eligibility basics
- Ages 10–24
Questions
If I fit this group, will I qualify?
Not necessarily. Age and sex limits are only the first filter. Each study has its own inclusion and exclusion criteria, and the research team decides at screening.
Where do these age and sex limits come from?
From the eligibility section of each study’s official ClinicalTrials.gov record. We don’t infer eligibility from anything else.