Younger adults · Washington
Studies for younger adults in Washington
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.
24 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteersEarly Phase 1
Evaluating a Potential Pharmacokinetic Kratom-oxycodone Interaction Concurrent With Clinical Endpoints
Washington State University
- Location
- Spokane, WA
- Eligibility basics
- Ages 21–45
- RecruitingHealthy volunteers
Contraceptive Efficacy Study of Ovaprene
Daré Bioscience, Inc.
- Location
- Seattle, WA + 3 other US sites
- Eligibility basics
- Ages 18–40 · Women only
- RecruitingPhase 3
A Research Study to See How Much CagriSema Lowers Blood Sugar and Body Weight Compared to Placebo in Children and Adolescents With Type 2 Diabetes
Novo Nordisk A/S
- Location
- Seattle, WA + 13 other US sites
- Eligibility basics
- Ages 10–18
- RecruitingPhase 3
A Phase 3 Study of Fenfluramine Hydrochloride in Rett Syndrome
UCB BIOSCIENCES, Inc.
- Location
- Seattle, WA + 7 other US sites
- Eligibility basics
- Ages 5–35
- RecruitingPhase 3
A Study to Investigate Efficacy and Safety of Teplizumab Compared With Placebo in Participants 1 to 25 Years of Age With Stage 3 Type 1 Diabetes
Sanofi
- Location
- Seattle, WA + 33 other US sites
- Eligibility basics
- Ages 1–25
- RecruitingPhase 2
SAFety and Efficacy of Human Anti-thymocyte ImmunoGlobUlin SAB-142 ARresting Progression of Type 1 Diabetes
SAb Biotherapeutics, Inc.
- Location
- Seattle, WA + 20 other US sites
- Eligibility basics
- Ages 5–40
- RecruitingPhase 2
A Study of Belumosudil in Children With Chronic Graft Versus Host Disease (schoolROCK)
Sanofi
- Location
- Seattle, WA + 6 other US sites
- Eligibility basics
- Ages 1–18
- RecruitingPhase 1/Phase 2
CNP-103 in Adolescent and Adult Subjects Ages 12-35 With Recently Diagnosed (Within 6 Months) Stage 3 Type 1 Diabetes (T1D)
COUR Pharmaceutical Development Company, Inc.
- Location
- Seattle, WA + 44 other US sites
- Eligibility basics
- Ages 12–35
- RecruitingPhase 1/Phase 2
Study to Evaluate Safety, Efficacy and Immunogenicity of Acne mRNA Vaccine in Adults With Moderate to Severe Acne
Sanofi Pasteur, a Sanofi Company
- Location
- Seattle, WA + 78 other US sites
- Eligibility basics
- Ages 18–45
- RecruitingPhase 3
Beeline: A Phase 3 Study in GRIN-related Neurodevelopmental Disorder
GRIN Therapeutics, Inc.
- Location
- Seattle, WA + 15 other US sites
- Eligibility basics
- Ages 1 mo–18
- Recruiting
KiteLock 4% EDTA Lock Solution for the Prevention of Occlusions in Children With Intestinal Failure
SterileCare Inc.
- Location
- Seattle, WA + 6 other US sites
- Eligibility basics
- Ages 1 mo–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
- RecruitingPhase 3
To Investigate the Efficacy of Treatment With Oral NA-921 (Bionetide) Versus Placebo in Females With Rett Syndrome
Biomed Industries, Inc.
- Location
- Seattle, WA + 13 other US sites
- Eligibility basics
- Ages 5–20 · Women only
- RecruitingPhase 3
Fontan Udenafil Exercise Longitudinal Assessment Trial - 2
Mezzion Pharma Co. Ltd
- Location
- Seattle, WA + 34 other US sites
- Eligibility basics
- Ages 12–18
- RecruitingHealthy volunteers
Wakaya: Rising Up for Choctaw Youth Health
University of Washington
- Location
- Seattle, WA + 1 other US site
- Eligibility basics
- Ages 12–19
- RecruitingHealthy volunteers
Greek Connections Study
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–29
- RecruitingHealthy volunteersPhase 4
Sleep Loss and Circadian Misalignment - Mechanisms of Insulin Resistance
Washington State University
- Location
- Spokane, WA
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
A Digital Intervention (ACT on Vaping App) for Vaping Cessation in Young Adult E-Cigarette Users
Fred Hutchinson Cancer Center
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteers
Sleep and Performance
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteers
Pediatric Normative Markerless Movement Analysis
MultiCare Health System Research Institute
- Location
- Puyallup, WA
- Eligibility basics
- Ages 3–25
- RecruitingHealthy volunteers
Individual Factors of CBT Underlying Success
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteers
Stress and Resilience
University of Washington
- Location
- Seattle, WA + 1 other US site
- Eligibility basics
- Ages 18–30
- RecruitingHealthy volunteers
TrialNet Pathway to Prevention of T1D
University of South Florida
- Location
- Seattle, WA + 16 other US sites
- Eligibility basics
- Ages 2–45
- RecruitingHealthy volunteers
Young Adult Education on Alcohol & Health
University of Washington
- Location
- Seattle, WA
- Eligibility basics
- Ages 18–24 · Women only