As of September 2026, 892 paid clinical trials are recruiting in Bethesda, Maryland. Compensation typically covers time, travel, and study visits, with stipends ranging from modest amounts for short outpatient studies to several thousand dollars for long or inpatient protocols.
Bethesda offers studies at sites including National Institutes of Health Clinical Center for conditions such as Healthy Volunteers, Breast Cancer, Prostate Cancer, Healthy Volunteer. Both patients with specific conditions and healthy volunteers can qualify. Most trials offer free study-related medical care alongside compensation.
Recruiting trial data synced daily from ClinicalTrials.gov. Last sync: .
Posted to ClinicalTrials.gov within the last 60 days — these studies are just starting to recruit.
Researchers run research studies in Bethesda, MD at 25 active sites. The clinics below currently host the largest number of recruiting studies — each name is followed by the conditions they focus on most.
| Site | Specializes in | Active trials |
|---|---|---|
| National Institutes of Health Clinical Center | Healthy Volunteers, Healthy Volunteer, Prostate Cancer | 654 |
| Walter Reed National Military Medical Center | Acute Myeloid Leukemia, Malignant Solid Neoplasm, Amputation | 68 |
| National Cancer Institute Developmental Therapeutics Clinic | Metastatic Malignant Solid Neoplasm, Advanced Malignant Solid Neoplasm, Unresectable Malignant Solid Neoplasm | 11 |
| National Institutes of Health | Abdominal Neoplasm, Advanced Solid Tumors, Anaplastic Astrocytoma | 7 |
| Mid-Atlantic Epilepsy and Sleep Center | Focal Epilepsy, Epilepsy, Focal Onset Seizures | 6 |
| NIH Clinical Center | Age-Related Macular Degeneration, COVID-19, Long Haul, Chronic Granulomatous Disease | 5 |
| National Institute of Health | Cervical Cancer, Chronic Lymphocytic Leukemia (CLL), Diffuse Large B Cell Lymphoma (DLBCL) | 5 |
| The Center for Cancer and Blood Disorders | Acute Myeloid Leukaemia (AML), Advanced Melanoma, Colorectal Cancer | 5 |
| Uniformed Services University of the Health Sciences | Alcohol Use, Arrythmia, Cardiovascular Diseases | 5 |
| National Cancer Institute | Advanced Solid Tumor, Advanced or Metastatic Solid Tumor Malignancies, Cutaneous Squamous Cell Carcinoma | 4 |
| National Cancer Institute (NCI) | Melanoma, Breast Cancer, Cardiofaciocutaneous Syndrome | 4 |
| Center for Cancer and Blood Disorders | Leukemia, Myeloid, Acute, Multiple Myeloma, Sickle Cell Disease | 4 |
| American Oncology Partners of Maryland, PA | Chronic Lymphocytic Leukemia, Immune Thrombocytopenic Purpura (ITP), Leukemia, B-cell | 3 |
| American Oncology Partners, PA | Breast Neoplasms, Chronic Lymphocytic Leukemia, Multiple Myeloma Refractory | 3 |
| American Oncology Partners, PA dba The Center for Cancer and Blood Disorders | Homeostatic Iron Regulator Gene-related Hereditary Hemochromatosis, Relapsed/Refractory Multiple Myeloma (RRMM), Secondary Immune Deficiency | 3 |
| Maryland Oncology Hematology, P.A. | Advanced Non-Small Cell Lung Cancer, Carcinoma, Non-Small-Cell Lung, Carcinoma, Non-Small-Cell Lung (NSCLC) | 3 |
| National Institutes of Health (NIH) | Eosinophilic Colitis, Eosinophilic Esophagitis, Eosinophilic Gastritis | 3 |
| Suburban Hospital | Biochemically Recurrent Prostate Carcinoma, Malignant Neoplasm, Metastatic Prostate Carcinoma | 3 |
| American Oncology Partners of Maryland Pa | Chronic Lymphocytic Leukemia, B-cell Malignancy, CLL | 2 |
| GSK Investigational Site | Colonic Neoplasms, Multiple Myeloma, Neoplasms, Colon | 2 |
| Mid Atlantic Epilepsy and Sleep Ctr | Generalized Myasthenia Gravis, Secondary Progressive Multiple Sclerosis (SPMS) | 2 |
| NCI - Center for Cancer Research | Hairy Cell Leukemia, Hereditary Leiomyomatosis and Renal Cell Carcinoma, Papillary Renal Cell Carcinoma | 2 |
| NIH Clinical Site | Drug Induced Liver Injury, Liver Diseases | 2 |
| National Eye Institute (NEI) | Albinism, Aniridia, Best Disease | 2 |
| National Institute of Allergy and Infectious Diseases (NIAID) | Healthy Volunteer Samples, Staphylococcal Infections | 2 |
Recruiting trials in Bethesda grouped by therapeutic area, drawn from ClinicalTrials.gov. Each bucket shows the most recent example studies.
There are approximately 892 recruiting clinical trials in Bethesda, Maryland listed on ClinicalTrials.gov. The number changes weekly as new studies open and others close enrollment.
Most recruiting trials in Bethesda compensate participants for their time, travel, and study visits. Compensation varies by sponsor, study phase, and visit requirements — the exact amount is disclosed by the study team during the informed consent process.
Eligibility depends on the specific study. Each trial defines its own inclusion criteria (age, diagnosis, medical history, prior treatments) and exclusion criteria. Both patients with specific conditions and healthy volunteers can qualify, depending on the study design.
The most common conditions under active study in Bethesda include Healthy Volunteers (25), Breast Cancer (19), Prostate Cancer (19), Healthy Volunteer (17), among many others. Browse the list above to explore every recruiting trial.
Yes. Healthy-volunteer studies — often early-phase pharmacology or vaccine trials — recruit in Bethesda on an ongoing basis. Use the "Healthy volunteers only" filter above to view trials that accept participants without the study's target condition.
Click any study title above to see the full study record, including eligibility criteria, visit schedule, and the study team's contact information. Reach out to the central contact or recruiting site directly — they will guide you through screening and informed consent.
Recruiting research sites in Bethesda include National Institutes of Health Clinical Center, Walter Reed National Military Medical Center, National Cancer Institute Developmental Therapeutics Clinic, among others. Each site lists its open studies and contact information on the study record above — call or email the site coordinator to ask about screening for a specific protocol.
The largest active categories in Bethesda are Cancer & tumors (236), Neurology & pain (60), Diabetes & metabolic (25). Use the filters above to narrow by therapeutic area, phase, age, or healthy-volunteer eligibility.