Location · Washington D.C., DC
Clinical trials in Washington D.C., DC
221 recruiting studies have a site in Washington D.C., and 73 of them accept healthy volunteers.
221 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteers
Characterization of Patients With Uncommon Presentations and/or Uncommon Diseases Associated With the Cardiovascular System
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Washington D.C., DC + 1 other US site
- Eligibility basics
- Ages 1–100
- RecruitingHealthy volunteers
Technical Development of Cardiovascular Magnetic Resonance Imaging
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Washington D.C., DC + 1 other US site
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Combatting HIV Or Other STIs Early (CHOOSE)
Westat
- Location
- Washington D.C., DC + 5 other US sites
- Eligibility basics
- Ages 13–24 · Men only
- RecruitingHealthy volunteers
Collecting Blood Samples From Patients With and Without Cancer to Evaluate Tests for Early Cancer Detection
Alliance for Clinical Trials in Oncology
- Location
- Washington D.C., DC + 612 other US sites
- Eligibility basics
- Ages 40–75
- RecruitingHealthy volunteers
Buprenorphine Implementation at Syringe Service Programs to Reduce Overdoses
Montefiore Medical Center
- Location
- Washington D.C., DC + 7 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Older Breast Cancer Patients: Risk for Cognitive Decline
Georgetown University
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 60–105 · Women only
- RecruitingHealthy volunteers
Youth-Onset Type 2 Diabetes and Heart Disease: The Young at Heart Prospective Cohort Study
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Washington D.C., DC + 1 other US site
- Eligibility basics
- Ages 12–25
- RecruitingHealthy volunteers
How a Single Workout Affects Gut Bugs in Women With Different Fitness Levels and Body Types
George Washington University
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 21–40 · Women only
- RecruitingHealthy volunteers
ASSESS ALL ALS Study
St. Joseph's Hospital and Medical Center, Phoenix
- Location
- Washington D.C., DC + 35 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
PREVENT ALL ALS Study
St. Joseph's Hospital and Medical Center, Phoenix
- Location
- Washington D.C., DC + 30 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Registry of Asthma Characterization and Recruitment 3 (RACR3)
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Washington D.C., DC + 4 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Pupillary Dilation Reflex in Healthy Volunteers
Children's National Research Institute
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 18–60
- RecruitingHealthy volunteers
Physiologic Measure of VIPN
Children's National Research Institute
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 6–18
- RecruitingHealthy volunteers
Health-E You Efficacy Trial for Male Adolescents
Johns Hopkins University
- Location
- Washington D.C., DC + 7 other US sites
- Eligibility basics
- Ages 13–21 · Men only
- RecruitingHealthy volunteersPhase 2
Testing the Effect of the Broccoli Seed and Sprout Extract, Avmacol ES, on the Cancer Causing Substances of Tobacco in Heavy Smokers
National Cancer Institute (NCI)
- Location
- Washington D.C., DC + 2 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Changing Youth Narratives on Firearm Violence ("Run It Up") Intervention
George Washington University
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 11+
- RecruitingHealthy volunteers
Does Social Media Impact Adolescent Mental Health?
Georgetown University
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 10–14
- RecruitingHealthy volunteers
Protocol CAUSE-03 / CHEETAH
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Washington D.C., DC + 7 other US sites
- Eligibility basics
- Ages 6–17
- RecruitingHealthy volunteers
Cognitive Outcomes After Brain Substructure-informed Radiation Planning in Pediatric Patients
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
- Location
- Washington D.C., DC + 1 other US site
- Eligibility basics
- Ages 1–26
- RecruitingHealthy volunteers
Childhood Cancer Survivor Study
St. Jude Children's Research Hospital
- Location
- Washington D.C., DC + 26 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
STS/ACC TVT Registry Mitral Module
American College of Cardiology
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 1+
- RecruitingHealthy volunteers
Late Onset Alzheimer's Disease
Columbia University
- Location
- Washington D.C., DC + 11 other US sites
- Eligibility basics
- Ages 55+
- RecruitingHealthy volunteers
Bundled Cancer Screening and Genetic Services Navigation
Georgetown University
- Location
- Washington D.C., DC + 1 other US site
- Eligibility basics
- Ages 45–74 · Women only
- RecruitingHealthy volunteers
HDClarity: a Multi-site Cerebrospinal Fluid Collection Initiative to Facilitate Therapeutic Development for Huntington's Disease
University College, London
- Location
- Washington D.C., DC + 4 other US sites
- Eligibility basics
- Ages 11–75