ClinicalTrials.gg

National Institutes of Health clinical trials

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

Also known as NIH.

The registry lists 11,571 studies whose lead sponsor is National Institutes of Health or one of its 27 institutes, centers and offices the registry lists separately. 947 are recruiting or about to start. Per ClinicalTrials.gov, last updated Oct 23, 2026.

Keep track of what changes. Save the National Institutes of Health 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
8,464
Terminated
979
Recruiting
826
Active, not recruiting
548
Withdrawn
315
Status unknown
274

Phase

Phase 2
3,748
Phase 1
2,956
Phase 3
848
Phase 4
177
Early Phase 1
80

Where

United States
10,030
Canada
389
Puerto Rico
320
South Africa
112
Australia
90
Brazil
76

Registry sponsor names on this page

Each name exactly as ClinicalTrials.gov lists it.

  • National Cancer Institute (NCI)
    Part of National Institutes of Health
    3,554 studies →
  • National Institute of Allergy and Infectious Diseases (NIAID)
    Part of National Institutes of Health
    2,445 studies →
  • National Heart, Lung, and Blood Institute (NHLBI)
    Part of National Institutes of Health
    1,143 studies →
  • National Institute of Neurological Disorders and Stroke (NINDS)
    Part of National Institutes of Health
    601 studies →
  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
    Part of National Institutes of Health
    537 studies →
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
    Part of National Institutes of Health
    422 studies →
  • National Institute on Drug Abuse (NIDA)
    Part of National Institutes of Health
    393 studies →
  • National Institutes of Health Clinical Center (CC)
    Part of National Institutes of Health
    375 studies →
  • National Institute of Mental Health (NIMH)
    Part of National Institutes of Health
    367 studies →
  • National Eye Institute (NEI)
    Part of National Institutes of Health
    272 studies →
  • National Center for Research Resources (NCRR)
    Part of National Institutes of Health
    265 studies →
  • National Center for Complementary and Integrative Health (NCCIH)
    Part of National Institutes of Health
    223 studies →
  • National Human Genome Research Institute (NHGRI)
    Part of National Institutes of Health
    203 studies →
  • National Institute of Environmental Health Sciences (NIEHS)
    Part of National Institutes of Health
    183 studies →
  • National Institute on Aging (NIA)
    Part of National Institutes of Health
    160 studies →
  • National Institute on Alcohol Abuse and Alcoholism (NIAAA)
    Part of National Institutes of Health
    102 studies →
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
    Part of National Institutes of Health
    100 studies →
  • National Institute of Dental and Craniofacial Research (NIDCR)
    Part of National Institutes of Health
    94 studies
  • National Institute of Nursing Research (NINR)
    Part of National Institutes of Health
    51 studies
  • National Institute on Deafness and Other Communication Disorders (NIDCD)
    Part of National Institutes of Health
    37 studies
  • National Institute of General Medical Sciences (NIGMS)
    Part of National Institutes of Health
    19 studies
  • National Institutes of Health (NIH)
    National Institutes of Health itself
    9 studies
  • Office of Rare Diseases (ORD)
    Part of National Institutes of Health
    6 studies
  • National Library of Medicine (NLM)
    Part of National Institutes of Health
    4 studies
  • National Institute on Minority Health and Health Disparities (NIMHD)
    Part of National Institutes of Health
    3 studies
  • National Institute for Biomedical Imaging and Bioengineering (NIBIB)
    Part of National Institutes of Health
    1 study
  • National Center for Advancing Translational Sciences (NCATS)
    Part of National Institutes of Health
    1 study
  • Fogarty International Center of the National Institute of Health
    Part of National Institutes of Health
    1 study

Focus areas

Conditions National Institutes of Health 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.

Show all 466 areas
Neoplasm Metastasis137Myelodysplastic Syndromes136Glioblastoma127Malaria124Carcinoma, Renal Cell123Asthma122Glioma120Depression118Pancreatic Neoplasms117Hepatitis115Ovarian Neoplasms111Substance-Related Disorders110Atherosclerosis108Cocaine-Related Disorders106Immunologic Deficiency Syndromes106Lymphoma, Large B-Cell, Diffuse106Obesity103Adenocarcinoma102Brain Neoplasms102Hypertension102Stroke93Colonic Neoplasms92COVID-1992Colorectal Neoplasms91Tuberculosis91Alcoholism89Parkinson Disease89Lymphoma, B-Cell88Hepatitis C87Carcinoma, Ovarian Epithelial86Depressive Disorder86Lymphoma, Mantle-Cell85Anemia, Sickle Cell84Liver Neoplasms83Lymphoma, Follicular83Gliosarcoma81Anemia80Burkitt Lymphoma79Opioid-Related Disorders78Diabetes Mellitus, Type 277Tobacco Use Disorder74Leukemia, Myelogenous, Chronic, BCR-ABL Positive73Rectal Neoplasms72Astrocytoma71Diabetes Mellitus, Type 171Fallopian Tube Neoplasms71Kidney Neoplasms70Alzheimer Disease69Myocardial Infarction69Neuroblastoma69Carcinoma, Squamous Cell67Hodgkin Disease67Urinary Bladder Neoplasms67Coronary Artery Disease66Insulin Resistance66Carcinoma, Hepatocellular65Sclerosis65Squamous Cell Carcinoma of Head and Neck63Virus Diseases63Head and Neck Neoplasms62Kidney Diseases62Lymphoma, B-Cell, Marginal Zone62Stomach Neoplasms62Multiple Sclerosis59Small Cell Lung Carcinoma59Central Nervous System Neoplasms58Uterine Cervical Neoplasms58Sarcoma, Kaposi57Schizophrenia57Hematologic Neoplasms56Macular Degeneration56Depressive Disorder, Major54Graft vs Host Disease54Plasmablastic Lymphoma54Thyroid Neoplasms54Lymphoma, Large-Cell, Immunoblastic52Osteosarcoma52Waldenstrom Macroglobulinemia52Ependymoma51Oropharyngeal Neoplasms51Endometrial Neoplasms50Leukemia, Myelomonocytic, Acute50Anemia, Aplastic49Lupus Erythematosus, Systemic49Pneumonia49Arthritis48Mesothelioma48Autoimmune Diseases47Breast Neoplasms, Male47Dystonia47Epilepsy47Esophageal Neoplasms47Influenza in Birds47Lymphoma, Large-Cell, Anaplastic47Medulloblastoma47Nervous System Diseases47Carcinoma, Transitional Cell46Hematologic Diseases46Leukemia, Myelomonocytic, Chronic46Lymphoma, T-Cell, Cutaneous46Osteoporosis46Sarcoma, Ewing46Skin Neoplasms46Bipolar Disorder45Hypersensitivity45Liver Diseases45Oligodendroglioma45Thyroid Diseases45Dystonic Disorders44Heart Failure44Hypercholesterolemia44Mesothelioma, Malignant44Mood Disorders43Mycosis Fungoides43Rhabdomyosarcoma43Vascular Diseases43Cholangiocarcinoma42Cytomegalovirus Infections42Hepatitis B42Laryngeal Neoplasms42Leukemia, Erythroblastic, Acute42Leukemia, Monocytic, Acute42Nasopharyngeal Carcinoma42Uveitis42Arthritis, Rheumatoid41Leukemia-Lymphoma, Adult T-Cell41Leukemia, Megakaryoblastic, Acute41Kidney Failure, Chronic40Movement Disorders40Myeloproliferative Disorders40Overweight40Retinal Diseases39Retinitis39Cardiomyopathies38Sezary Syndrome38Dengue37Neurofibromatosis 137Leukemia, Myelomonocytic, Juvenile36Blast Crisis34Brain Injuries34Lymphomatoid Granulomatosis34Renal Insufficiency34Triple Negative Breast Neoplasms34Cystic Fibrosis33Granulomatous Disease, Chronic33Mental Disorders33Neuroectodermal Tumors, Primitive, Peripheral33Salivary Gland Neoplasms33Brain Injuries, Traumatic32Dementia32Dermatitis, Atopic32Immunoblastic Lymphadenopathy32Pneumonia, Pneumocystis32Gastrointestinal Neoplasms31Leukemia, Hairy Cell31Lymphoma, T-Cell, Peripheral31Lymphoproliferative Disorders31Neoplasms, Germ Cell and Embryonal31Pulmonary Disease, Chronic Obstructive31Attention Deficit Disorder with Hyperactivity30Bile Duct Neoplasms30Neuroendocrine Tumors30Seizures30Cystadenocarcinoma, Serous29Dermatitis29Eye Diseases29Heart Defects, Congenital29Hypereosinophilic Syndrome29Laryngeal Diseases29Lipodystrophy29Malaria, Falciparum29Metabolic Syndrome29Mycobacterium Infections29Peritoneal Neoplasms29Cerebral Palsy28Coronavirus Infections28Gallbladder Neoplasms28Herpes Simplex28Infertility28Lymphoma, Extranodal NK-T-Cell28Metabolic Diseases28Anemia, Refractory, with Excess of Blasts27Neurofibromatoses27Premature Birth27Wounds and Injuries27Arteriosclerosis26Autistic Disorder26Carcinoma, Neuroendocrine26Eczema26Fatigue26Fatty Liver26Gastrointestinal Stromal Tumors26Mouth Neoplasms26Wilms Tumor26Adenocarcinoma of Lung25Cardiomyopathy, Hypertrophic25Cataract25Cytomegalovirus Retinitis25Hyperplasia25Intraocular Lymphoma25Vaccinia25Bronchiolitis Obliterans Syndrome24Cerebrovascular Disorders24Genetic Diseases, Inborn24Psoriasis24Anus Neoplasms23Granuloma23Hepatitis C, Chronic23Hypertrophy23Macular Edema23Myelodysplastic-Myeloproliferative Diseases23Papillomavirus Infections23Paranasal Sinus Neoplasms23Autism Spectrum Disorder22Carcinoma, Verrucous22Cognitive Dysfunction22Cystadenocarcinoma22Diabetic Retinopathy22Hypertension, Pulmonary22Immune System Diseases22Leukemia, Promyelocytic, Acute22Liver Cirrhosis22Melanoma, Cutaneous Malignant22Neutropenia22Non-alcoholic Fatty Liver Disease22Sjogren's Syndrome22Ureteral Neoplasms22Amyotrophic Lateral Sclerosis21Anemia, Refractory21Carcinoma, Endometrioid21Carcinosarcoma21HIV Seropositivity21Leiomyosarcoma21Respiratory Syncytial Virus Infections21Rhabdoid Tumor21Stress Disorders, Post-Traumatic21Thrombocytopenia21Tourette Syndrome21Adrenocortical Carcinoma20Alcohol-Related Disorders20Meningioma20Neurofibroma, Plexiform20Psychotic Disorders20Pulmonary Fibrosis20AIDS-Related Complex19Brain Diseases19Candidiasis19Carcinoma, Adenosquamous19Hemorrhagic Fever, Ebola19Hepatitis, Chronic19Hyperlipidemias19Intestinal Neoplasms19Ischemia19Leukemia, Basophilic, Acute19Obsessive-Compulsive Disorder19Osteoarthritis19Papilloma19Pinealoma19Respiratory Distress Syndrome, Newborn19Thrombosis19Thyroid Cancer, Papillary19Bacterial Infections18Inflammatory Bowel Diseases18Leukemia, Eosinophilic, Acute18Neoplasms, Unknown Primary18Pheochromocytoma18Primary Immunodeficiency Diseases18Smallpox18Tuberculosis, Pulmonary18Urethral Neoplasms18Crohn Disease17Cushing Syndrome17Dermatomyositis17Developmental Disabilities17Leukemia, Myeloid, Accelerated Phase17Muscular Dystrophies17Mycobacterium avium-intracellulare Infection17Pain17Peripheral Nervous System Diseases17Adenocarcinoma, Bronchiolo-Alveolar16Adenocarcinoma, Clear Cell16Adenocarcinoma, Follicular16Adenocarcinoma, Mucinous16Bone Diseases, Metabolic16Carcinoma in Situ16Carcinoma, Adenoid Cystic16Cognition Disorders16Food Hypersensitivity16Gonorrhea16Hepatoblastoma16Intellectual Disability16Leukemia, Prolymphocytic16Peripheral Arterial Disease16Poisoning16Precursor T-Cell Lymphoblastic Leukemia-Lymphoma16Respiratory Tract Infections16Retinitis Pigmentosa16Weight Gain16Bone Diseases15Brenner Tumor15Carcinoid Tumor15Carcinoma, Basal Cell15Carotid Artery Diseases15Death, Sudden, Cardiac15Encephalitis15Hearing Loss15Histiocytosis, Langerhans-Cell15Intestinal Diseases15Leukemia, Large Granular Lymphocytic15Neurofibrosarcoma15Primary Myelofibrosis15Sarcoma, Synovial15Sleep Apnea Syndromes15Spinal Cord Neoplasms15Tongue Neoplasms15Vasculitis15Carcinoma, Intraductal, Noninfiltrating14Choroid Plexus Neoplasms14Cytopenia14Granulomatosis with Polyangiitis14Heroin Dependence14Herpes Zoster14Histiocytoma, Malignant Fibrous14Hypogonadism14Leukemia, Myeloid, Chronic-Phase14Muscular Diseases14Myositis14Opportunistic Infections14Precancerous Conditions14Scleroderma, Systemic14Thalassemia14Thymoma14Acute Lung Injury13Arrhythmias, Cardiac13Carcinoma, Medullary13Chlamydia Infections13Chronic Pain13Endometriosis13Germinoma13Hypertriglyceridemia13Leiomyoma13Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative13Liposarcoma13Lyme Disease13Muscle Spasticity13Neurologic Manifestations13Paraganglioma13Polycystic Ovary Syndrome13Rhinitis13Scleroderma, Diffuse13Severe Combined Immunodeficiency13Thymus Neoplasms13Turner Syndrome13Uterine Cervical Dysplasia13Zika Virus Infection13Amphetamine-Related Disorders12beta-Thalassemia12Carcinoma, Small Cell12Craniopharyngioma12Essential Tremor12Esthesioneuroblastoma, Olfactory12Fanconi Anemia12Fever12Fibromyalgia12Gastrinoma12Gastroenteritis12Gaucher Disease12Glucose Intolerance12Hepatitis B, Chronic12Lead Poisoning12Malignant Carcinoid Syndrome12Metabolism, Inborn Errors12Polycythemia Vera12Rare Diseases12Rhabdomyosarcoma, Embryonal12Sleep Wake Disorders12Spinal Cord Injuries12Testicular Neoplasms12Toxemia12Tremor12Urinary Tract Infections12Von Hippel-Lindau Disease12Breast Carcinoma In Situ11Carcinoma, Merkel Cell11Carcinoma, Mucoepidermoid11Connective Tissue Diseases11Deglutition Disorders11Diabetic Nephropathies11Endocrine System Diseases11Epilepsies, Partial11Fabry Disease11Glomerulosclerosis, Focal Segmental11Inflammatory Breast Neoplasms11Low Back Pain11Mastocytosis11Mixed Tumor, Mullerian11Myofascial Pain Syndromes11Nasopharyngeal Neoplasms11Necrosis11Pancytopenia11Panic Disorder11Pituitary Neoplasms11Plasmacytoma11Pre-Eclampsia11Primary Ovarian Insufficiency11Rhinitis, Allergic11Sarcoidosis11Sarcoma, Alveolar Soft Part11Sepsis11Sexually Transmitted Diseases11Skin Diseases11Staphylococcal Infections11Adenoma10Arthritis, Juvenile10Bronchopulmonary Dysplasia10Cachexia10Carcinoma, Islet Cell10Colitis, Ulcerative10Colorectal Neoplasms, Hereditary Nonpolyposis10Deafness10Death10Down Syndrome10Edema10Emphysema10Epilepsy, Temporal Lobe10Fibrous Dysplasia, Polyostotic10Frontotemporal Dementia10Gastrointestinal Diseases10Genetic Predisposition to Disease10Hemolysis10Hyperinsulinism10Hypopharyngeal Neoplasms10Iron Deficiencies10Memory Disorders10Nephrotic Syndrome10Philadelphia Chromosome10Polycythemia10Rheumatic Diseases10Severe Acute Respiratory Syndrome10Telangiectasis10Tic Disorders10Urogenital Neoplasms10

Studies

Recruiting first, then most recently updated. Showing 50 of 11,571. Browse all 11,571 →