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National Heart, Lung, and Blood Institute (NHLBI) clinical trials

Listed in the registry as: U.S. National Institutes of Health.

The registry lists 1,143 studies whose lead sponsor is National Heart, Lung, and Blood Institute (NHLBI). 72 are recruiting or about to start. Per ClinicalTrials.gov, last updated Oct 23, 2026.

Keep track of what changes. Save the National Heart, Lung, and Blood Institute (NHLBI) studies recruiting or about to start, and get an email each week — studies that open, close, add sites or post results.

Watch these studies

Status

Completed
994
Recruiting
58
Terminated
38
Active, not recruiting
21
Withdrawn
10
Enrolling by invitation
8

Phase

Phase 2
187
Phase 3
123
Phase 1
86
Early Phase 1
6
Phase 4
5

Where

United States
527
Canada
6
China
2
Ukraine
1
Nigeria
1
United Kingdom
1

Focus areas

Conditions National Heart, Lung, and Blood Institute (NHLBI) leads ten or more studies in, by study count. A broader condition is left out when almost all its studies are already in a narrower one listed here.

Heart Diseases442Coronary Disease213Lung Diseases134Atherosclerosis82Hypertension68Myocardial Infarction63Anemia, Sickle Cell60Coronary Artery Disease58Asthma57Anemia44Heart Failure40Anemia, Aplastic39Hematologic Diseases39Stroke36Cardiomyopathies34Vascular Diseases34Leukemia33Hypercholesterolemia32Myelodysplastic Syndromes30Pulmonary Disease, Chronic Obstructive27Leukemia, Lymphocytic, Chronic, B-Cell25Graft vs Host Disease24Cardiomyopathy, Hypertrophic23Arteriosclerosis22
Show all 51 areas
Heart Defects, Congenital21Hypertrophy21Diabetes Mellitus20Obesity18Hypertension, Pulmonary16Leukemia, Myeloid, Acute16Insulin Resistance15Death, Sudden, Cardiac14Diabetes Mellitus, Type 214Leukemia, Myelogenous, Chronic, BCR-ABL Positive14Peripheral Arterial Disease14Cerebrovascular Disorders13HIV Infections13Arrhythmias, Cardiac12Infections12Ischemia12Pulmonary Fibrosis12Sleep Apnea Syndromes12Thrombosis12Carotid Artery Diseases11Multiple Myeloma11Communicable Diseases10Cytomegalovirus Infections10Pancytopenia10Precursor Cell Lymphoblastic Leukemia-Lymphoma10Respiratory Distress Syndrome, Newborn10Thrombocytopenia10

Studies

Recruiting first, then most recently updated. Showing 50 of 1,143. Browse all 1,143 →