Location · Washington, DC
Clinical trials in Washington, DC
477 recruiting studies have a site in the Washington area, and 296 of them accept healthy volunteers. The area includes Bethesda, MD, Rockville, MD, Silver Spring, MD, Gaithersburg, MD, Chevy Chase, MD, Arlington, VA and nearby cities.
477 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteersPhase 1/Phase 2
Safety and Immunogenicity of Recombinant Varicella Zoster Virus Vaccine in People With HIV Who Have a CD4 Count Less Than 300 or Greater Than or Equal to 300 and a Healthy Control Population
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteersOvernight stay mentioned
NIMH Rhythms and Blues Study: A Prospective Natural History Study of Motor Activity, Mood States, and Bipolar Disorder
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 8–70
- RecruitingHealthy volunteersPhase 1
Assessment of [18F]-Fluorocellobiose ([18F]FCB) Pharmacokinetics in Healthy Volunteers and Subjects With Invasive Mold Infections
National Institutes of Health Clinical Center (CC)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteersPhase 1
Epstein-Barr Virus (EBV) gH/gL/gp42-Ferritin Nanoparticle Vaccine With or Without gp350-Ferritin in Healthy Adults With or Without EBV Infection
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–29
- RecruitingHealthy volunteersOvernight stay mentioned
Development of a Wearable Point of Care Monitoring Device for Pediatric Obstructive Sleep Apnea
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 3–12
- RecruitingHealthy volunteersPhase 1
[18F]PF-06445974 to Image PDE4B in Major Depressive Disorder Using PET
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 1
Evaluation of [11C]ZTP-1 to Image PDE4B
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–101
- RecruitingHealthy volunteersPhase 1
PET Imaging of Noradrenergic Transmission in the Brain
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–105
- RecruitingHealthy volunteersPhase 1
Nicotinic Receptor Genetic Variation and Alcohol Reward
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 21–60
- RecruitingHealthy volunteersPhase 1
Induced Blood-Stage Malaria in Healthy Malaria-Naive Adults to Assess the Safety and Infectivity of Plasmodium Vivax Challenge Agent and Evaluate Transmission in Mosquito Feeding Assays
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–54
- RecruitingHealthy volunteersPhase 1/Phase 2
Human Immune Response to Ixodes Scapularis Tick Bites
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteersPhase 1
PET Imaging of Cyclooxygenases in Neurodegenerative Brain Disease
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteersOvernight stay mentioned
Functional Magnetic Resonance Imaging Sleep Study With Auditory Stimuli
National Institute of Neurological Disorders and Stroke (NINDS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–34
- RecruitingHealthy volunteersOvernight stay mentioned
The Impact of Heavy Alcohol Use on Saliva and Oral Health
National Institutes of Health Clinical Center (CC)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteersPhase 1
PET Imaging of Cyclooxygenase in Participants With Major Depressive Disorder (MDD)
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 1
Assessment of 11C-JMJ-129 for Imaging PDE4D in Brain and Whole Body of Healthy Volunteers
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–101
- RecruitingHealthy volunteersPhase 1
PET Imaging of Cyclooxygenase-1 in Participants With Neurological Manifestations of Post-Acute Sequelae of SARS-CoV-2 Infection (PASC)
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteersPhase 1
Virtual Reality Mobility Assessment of Functional Vision in Retinal Disease
National Eye Institute (NEI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 5–120
- RecruitingHealthy volunteersPhase 1/Phase 2
Double-blind Placebo Controlled Study to Evaluate the Effect of NAD+ Boosting With Nicotinamide Riboside on Immunometabolism and Immunity in Systemic Lupus Erythematosus
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–120 · Women only
- RecruitingHealthy volunteersPhase 1
Safety, Tolerability, and Bioeffects of Alirocumab in Non-treatment Seeking Heavy Drinkers
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 21–65
- 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 volunteersPhase 1
Safety and Immunogenicity of Ad4-HIV Envelope Vaccine Vectors in Healthy Volunteers
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 1/Phase 2
Repeat Peripheral Blood Stem Cell Transplantation for Patients With Sickle Cell Disease and Falling Donor Myeloid Chimerism Levels
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–80
- RecruitingHealthy volunteersPhase 1/Phase 2
Vaginal Microbiome Seeding and Health Outcomes in Cesarean-delivered Neonates.
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Falls Church, VA
- Eligibility basics
- Ages 0 mo–50