Location · Maryland
Clinical trials recruiting in Maryland
891 recruiting studies have at least one site in Maryland; 511 accept healthy volunteers. Studies that need a specific condition are included too, so check each listing.
Want the research companies that run paid Phase 1 studies for healthy volunteers? Paid clinical trial companies in Maryland.
891 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingHealthy volunteers
Clinical, Laboratory, and Epidemiologic Characterization of Individuals and Families at High Risk of Melanoma
National Cancer Institute (NCI)
- Location
- Bethesda, MD + 1 other US site
- Eligibility basics
- Ages 1 mo–99
- RecruitingHealthy volunteers
Tissue Procurement for Biomedical Research
National Institute on Aging (NIA)
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteers
Natural History of Bronchiectasis
National Heart, Lung, and Blood Institute (NHLBI)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 5–100
- RecruitingHealthy volunteersPhase 4
Improving White Blood Cell Collection From Healthy Donors
National Institutes of Health Clinical Center (CC)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–75
- RecruitingHealthy volunteers
Genetic Characterization of Movement Disorders and Dementias
National Institute on Aging (NIA)
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–120
- RecruitingHealthy volunteers
Natural History, Pathogenesis and Outcome of Melorheostosis A Rare Osteosclerotic Disease
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
Collection of Human Biospecimens for Basic and Clinical Research Into Globin Variants
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Clinical, Genetic, and Epidemiologic Study of Children and Adults With RASopathies
National Cancer Institute (NCI)
- Location
- Bethesda, MD + 1 other US site
- Eligibility basics
- Ages 1 mo–99
- RecruitingHealthy volunteers
State-dependent Interoception, Value-based Decision-making, and Introspection
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Ultra-Low Field (ULF) Point-of-Care (POC) MRI System for Brain Morphology and Pathology
National Institute of Neurological Disorders and Stroke (NINDS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 3–99
- RecruitingHealthy volunteers
Cognitive Neurocomputational Task Reliability & Clinical Applications Consortium (CNTRACS): Study 1
Washington University School of Medicine
- Location
- Baltimore, MD + 4 other US sites
- Eligibility basics
- Ages 18–59
- RecruitingHealthy volunteers
Evaluation of Patients With Liver Disease
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–100
- RecruitingHealthy volunteers
Natural History of Craniofacial Anomalies and Developmental Growth Variants
National Institute of Dental and Craniofacial Research (NIDCR)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–100
- RecruitingHealthy volunteers
Long-term Observation of Participants With Mood Disorders
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–99
- RecruitingHealthy volunteers
Clinical Manifestations and Biomarkers in Amyotrophic Lateral Sclerosis Type 4 and Other Inherited Neurological Disorders of RNA Processing
National Institute of Neurological Disorders and Stroke (NINDS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 5–120
- RecruitingHealthy volunteers
The Neurodevelopmental and Behavioral Phenotyping Screening Protocol
National Institute of Mental Health (NIMH)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 1 mo+
- RecruitingHealthy volunteersPhase 2
Early Metabolic Effects of Antiretroviral Drugs in Healthy volUnteers: a Phase 2 Randomized Study
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Myocardial Mechanisms in Heart Failure With Preserved Ejection Fraction
Northwestern University
- Location
- Baltimore, MD + 5 other US sites
- Eligibility basics
- Ages 30+
- RecruitingHealthy volunteersPhase 2
Pregnenolone as a Treatment for Cannabis Intoxication
Johns Hopkins University
- Location
- Baltimore, MD
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Natural History, Management, and Genetics of the Hyperimmunoglobulin E Recurrent Infection Syndrome (HIES)
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 1 mo–120
- RecruitingHealthy volunteers
Apheresis and Specimen Collection Procedures to Obtain Plasma, Peripheral Blood Mononuclear Cells (PBMCs) and Other Specimens for Research Studies
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 3+
- RecruitingHealthy volunteers
Physical and Behavioral Traits of Overweight and Obese Adults
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100
- RecruitingHealthy volunteersPhase 2
Effects of Treatments on Atopic Dermatitis
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 2–50
- RecruitingHealthy volunteers
Evaluation of Adults With Endocrine and Metabolic-Related Conditions
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Location
- Bethesda, MD
- Eligibility basics
- Ages 18–100