Phase 1 · District of Columbia
Phase 1 clinical trials in District of Columbia
15 studies have at least one recruiting site in District of Columbia. Phase 1 (and early Phase 1) trials are usually the first time a medicine is studied in people. They are typically small, closely monitored, and many are run in dedicated research units, sometimes with overnight stays.
15 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteersPhase 1/Phase 2
Phase 1/2 Study of Respiratory Syncytial Virus and Human Metapneumovirus (RSV+HMPV) Vaccine Candidate in Adults 60 Years of Age and Older
Sanofi
- Location
- Washington D.C., DC + 49 other US sites
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteersPhase 1
A Clinical Trial to Evaluate the Safety and Immunogenicity of rVSV∆G-MARV-GP Vaccine in Adults in Good General Health
International AIDS Vaccine Initiative
- Location
- Washington D.C., DC + 1 other US site
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersPhase 1
A Clinical Study to Investigate the Safety and Immunogenicity of rVSV∆G-SUDV-GP, a Sudan Virus (SUDV) Vaccine for the Prevention of SUDV Disease in Adults in Good General Health
International AIDS Vaccine Initiative
- Location
- Washington D.C., DC + 2 other US sites
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersEarly Phase 1
Assistance Delivery and Muscle Coordination
The Catholic University of America
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 20–80
- RecruitingHealthy volunteersPhase 1
Controlled Human Infection Study of Orally Administered Trichuris Trichiura Eggs in Naïve Adults
George Washington University
- Location
- Washington D.C., DC + 1 other US site
- Eligibility basics
- Ages 18–45
- RecruitingHealthy volunteersEarly Phase 1
Sensory Feedback and Hand Motor Adaptation
The Catholic University of America
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 20–70
- RecruitingHealthy volunteersPhase 1
Experimental Infection of Hookworm-naïve Adults With Dermally-applied Infectious Necator Americanus Hookworm Larvae
Baylor College of Medicine
- Location
- Washington D.C., DC
- Eligibility basics
- Ages 18–45
- RecruitingPhase 1/Phase 2
A Study of Pirtobrutinib in Participants With Immune Thrombocytopenia
Eli Lilly and Company
- Location
- Washington D.C., DC + 7 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1
A Study to Learn About the Study Medicine Called Zavegepant (PF-07930207) in Children With a History of Migraine
Pfizer
- Location
- Washington D.C., DC + 10 other US sites
- Eligibility basics
- Ages 6–11
- RecruitingPhase 1
Study of GS-0415 and How It Works in People With HIV
Gilead Sciences
- Location
- Washington D.C., DC + 14 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingPhase 1
OM336 in Autoimmune Cytopenias
Lakefront Biotherapeutics West LLC
- Location
- Washington D.C., DC + 3 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 1
An Open-label Study of AZD0120 in Adults With Multiple Sclerosis
AstraZeneca
- Location
- Washington D.C., DC + 4 other US sites
- Eligibility basics
- Ages 18–60
- RecruitingPhase 1/Phase 2
Descartes-08 for Children, Adolescents, and Young Adults With Autoimmune Disorders
Cartesian Therapeutics
- Location
- Washington D.C., DC + 2 other US sites
- Eligibility basics
- Ages 12+
- RecruitingPhase 1
AMX0114 in Adult Participants With Amyotrophic Lateral Sclerosis
Amylyx Pharmaceuticals Inc.
- Location
- Washington D.C., DC + 9 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1/Phase 2
Pharmacokinetics, Safety, Tolerability of Dolutegravir/Rilpivirine in Pediatrics
ViiV Healthcare
- Location
- Washington D.C., DC + 5 other US sites
- Eligibility basics
- Ages 6–12
Who these studies look for
Phase 1 studies often have narrow eligibility: specific age and weight ranges, no recent participation in another study, no nicotine, and limits on medications. Some Phase 1 studies recruit patients rather than healthy volunteers, so check each listing.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Are Phase 1 trials riskier?
Every study carries risk. Phase 1 studies involve less human data about the product, which is why they are closely monitored. The informed consent document explains the known risks; read it carefully and ask questions before signing.
Why do some Phase 1 studies include overnight stays?
Staying in the unit lets staff dose on a precise schedule and collect samples around the clock. Where a record mentions an inpatient stay we flag it on the listing.