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
- Recruiting
Pediatric Percutaneous Ultrasound Gastrostomy Technique
CoapTech
- Location
- Washington D.C., DC + 2 other US sites
- Eligibility basics
- Ages 0 mo–21
- RecruitingPhase 1/Phase 2
Phase 1/2 Study of MZ-1866, an AAV-9 Gene Therapy Delivered by Intracerebroventricular Injection to Participants With Pitt Hopkins Syndrome
Mahzi Therapeutics
- Location
- Oakland, CA + 2 other US sites
- Eligibility basics
- Ages 2–25
- RecruitingPhase 3
Study of Ravulizumab in Pediatric Participants With Primary IgAN
Alexion Pharmaceuticals, Inc.
- Location
- Aurora, CO
- Eligibility basics
- Ages 2–18
- RecruitingPhase 1
Assessing the Safety, Tolerability, and Efficacy of APR-2020 in Pediatric and Adolescent Subjects With RPS19 Deficient Diamond-Blackfan Anemia
Apriligen, Inc.
- Location
- Stanford, CA + 1 other US site
- Eligibility basics
- Ages 2–25
- Recruiting
Mindfulness Training and Respiration Biosignal Feedback - Study 2
Equa Health
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 18–30
- Recruiting
STEPS - Stress Training and Engagement Via Phone-Based Systems
Equa Health
- Location
- Pittsburgh, PA
- Eligibility basics
- Ages 18–30
- RecruitingPhase 3
Beeline: A Phase 3 Study in GRIN-related Neurodevelopmental Disorder
GRIN Therapeutics, Inc.
- Location
- Los Angeles, CA + 15 other US sites
- Eligibility basics
- Ages 1 mo–18
- RecruitingPhase 3
A Study to Learn About the Study Medicine Called Rimegepant in Women When Used for Intermittent Prevention of Menstrual Migraine
Pfizer
- Location
- Phoenix, AZ + 30 other US sites
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingPhase 1/Phase 2
Study to Evaluate Safety, Efficacy and Immunogenicity of Acne mRNA Vaccine in Participants With Mild Acne
Sanofi Pasteur, a Sanofi Company
- Location
- Encino, CA + 3 other US sites
- Eligibility basics
- Ages 18–45
- RecruitingPhase 3
Pediatric Safety Follow-up Study of Prior Treatment With Romosozumab for Osteogenesis Imperfecta
Amgen
- Location
- Indianapolis, IN
- Eligibility basics
- Ages 5–19
- RecruitingPhase 1/Phase 2
A Study Exploring Changes in a Variety of Biomarkers Following Dosing With MT1988 in Participants at Clinical High Risk for Psychosis
Monument Therapeutics Limited
- Location
- Irvine, CA + 14 other US sites
- Eligibility basics
- Ages 17–30
- Recruiting
KiteLock 4% EDTA Lock Solution for the Prevention of Occlusions in Children With Intestinal Failure
SterileCare Inc.
- Location
- Boston, MA + 6 other US sites
- Eligibility basics
- Ages 1 mo–18
- RecruitingPhase 3
Efficacy, Safety, and Tolerability of Zeleciment Rostudirsen (DYNE-251) Administered Intravenously Every 4 Weeks in Ambulatory Participants With Duchenne Muscular Dystrophy (FORZETTO)
Dyne Therapeutics
- Location
- Hillsborough, NC
- Eligibility basics
- Ages 4–18 · Men only
- Recruiting
The Prism Conformity Trial for Post-Traumatic Stress Disorder in Adolescents
GrayMatters Health Ltd.
- Location
- New York, NY
- Eligibility basics
- Ages 12–21
- RecruitingPhase 2
A Study of LY4515100 in Participants With Pain Following Third Molar Removal
Eli Lilly and Company
- Location
- Salt Lake City, UT
- Eligibility basics
- Ages 18–40
- RecruitingPhase 4
Tirbanibulin for Pediatric Warts
The Skin Center Dermatology Group
- Location
- New City, NY
- Eligibility basics
- Ages 8–18
- Recruiting
Trial of Partial Enteral Nutrition With Dairy Free Diet in Eosinophilic Esophagitis
Kate Farms Inc
- Location
- Seattle, WA
- Eligibility basics
- Ages 1–21
- Recruiting
Testing Conversational Agents as a Digital Companion
Friendi.fi Corporation
- Location
- Bloomington, IN + 2 other US sites
- Eligibility basics
- Ages 18–35
- RecruitingPhase 3
To Investigate the Efficacy of Treatment With Oral NA-921 (Bionetide) Versus Placebo in Females With Rett Syndrome
Biomed Industries, Inc.
- Location
- Phoenix, AZ + 13 other US sites
- Eligibility basics
- Ages 5–20 · Women only
- RecruitingPhase 3
Evaluation of Efficacy and Safety of a Single Dose of CTX001 in Participants With Transfusion-Dependent β-Thalassemia and Severe Sickle Cell Disease
Vertex Pharmaceuticals Incorporated
- Location
- New York, NY + 2 other US sites
- Eligibility basics
- Ages 12–35
- Recruiting
A Digitally Assisted Risk Reduction Platform for Youth at High Risk for Suicide
Ksana Health
- Location
- New York, NY
- Eligibility basics
- Ages 13–18
- RecruitingPhase 3
A Trial of Etelcalcetide in Pediatric Participants With Secondary Hyperparathyroidism and Chronic Kidney Disease on Hemodialysis
Amgen
- Location
- Los Angeles, CA + 4 other US sites
- Eligibility basics
- Ages 0 mo–18
- RecruitingPhase 1/Phase 2
Safety and Efficacy of CELZ-201 in Patients With Recent Onset Type 1 Diabetes
Creative Medical Technology Holdings Inc
- Location
- Miami, FL
- Eligibility basics
- Ages 18–35
- RecruitingPhase 2/Phase 3
Evaluating the Pharmacokinetics, Pharmacodynamics, and Safety of Efgartigimod Administered Intravenously in Children With Generalized Myasthenia Gravis
argenx
- Location
- Chicago, IL + 2 other US sites
- Eligibility basics
- Ages 2–18
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.