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 volunteers
Caregiving Networks Across Disease Context and the Life Course
National Human Genome Research Institute (NHGRI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Viral Infections in Healthy and Immunocompromised Hosts
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 6 mo–120
- RecruitingHealthy volunteers
A Repository to Study Host-Microbiome Interactions in Health and Disease
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Randomized Controlld Trial of Dementia Education Resources for Action
George Mason University
- Location
- Fairfax, VA
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Acute Infection in Mitochondrial Disease: Metabolism, Infection and Immunity
National Human Genome Research Institute (NHGRI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2 mo–115
- RecruitingHealthy volunteers
The Efficacy of Vitamin D Supplementation to Sustain Performance Outcomes
Walter Reed Army Institute of Research (WRAIR)
- Location
- Silver Spring, MD
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Observational Digital Biomarker Discovery in Respiratory Virus Challenge Studies
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Mirror Neuron Network Dysfunction as an Early Biomarker of Neurodevelopmental Disorder
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 10 mo–65
- RecruitingHealthy volunteers
Controls and Healthy Vasculature Initiative
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
Natural History Study of Progressive Multifocal Leukoencephalopathy (PML)
National Institute of Neurological Disorders and Stroke (NINDS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–120
- RecruitingHealthy volunteers
NIAAA Natural History Protocol
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteersPhase 2
Desmopressin Stimulation Test Performance in ACTH-Dependent Cushing Syndrome
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Screening of Healthy Volunteers for Investigational Antimalarial Drugs, Malaria Vaccines, and Controlled Human Malaria Challenge
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Geospatial Analysis of Neighborhood Environmental Stress in Relation to Biological Markers of Cardiovascular Health and Health Behaviors in Women
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 19–45 · Women only
- RecruitingHealthy volunteers
Top-Down Attentional Control of Visual-Processing
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteers
Natural History of Individuals With Immune System Problems That Lead to Fungal Infections
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 0 mo–99
- RecruitingHealthy volunteers
PREVENT ALL ALS Study
St. Joseph's Hospital and Medical Center, Phoenix
- Location
- Birmingham, AL + 30 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Cerebral Palsy and the Study of Brain Activity During Motor Tasks
National Institutes of Health Clinical Center (CC)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 5–100
- RecruitingHealthy volunteers
Observational Study of Advanced Data Analytics in Genetic Conditions
National Human Genome Research Institute (NHGRI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 0 mo–120
- RecruitingHealthy volunteers
Genotype -Phenotype Correlation of PKLR Variants With Pyruvate Kinase, 2,3-Diphosphglycerate and Adenosine Triphosphate Activities in Red Blood Cells of People With Sickle Cell Disease
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–80
- RecruitingHealthy volunteers
Biochemical and Phenotypical Aspects of Smith-Lemli-Opitz Syndrome and Related Disorders of Cholesterol Metabolism
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 0 mo–100
- RecruitingHealthy volunteers
Clinical, Molecular and Imaging Biomarkers in Spinal and Bulbar Muscular Atrophy (SBMA)
National Institute of Neurological Disorders and Stroke (NINDS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–120 · Men only
- RecruitingHealthy volunteers
Adaptive Optics Retinal Imaging
National Eye Institute (NEI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 12–120
- RecruitingHealthy volunteersPhase 2
Non-Alcoholic Fatty Liver Disease, the HEpatic Response to Oral Glucose, and the Effect of Semaglutide (NAFLD HEROES)
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100