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Clinical trials in St. Louis, MO

1,360 clinical studies are recruiting at sites in and around St. Louis (within about 30 miles).

Studies for healthy volunteers in St. Louis — 113 studies

Studies by condition

• Non-Small Cell Lung Cancer68 studies
• Breast Cancer63 studies
• Metastatic Cancer52 studies
• Cancer (all types)51 studies
• Colorectal Cancer51 studies
• Prostate Cancer45 studies
• Ovarian Cancer37 studies
• Lung Cancer37 studies
• Pancreatic Cancer33 studies
• Head and Neck Squamous Cell Carcinoma32 studies
• Endometrial Cancer29 studies
• Multiple Myeloma26 studies
• Obesity25 studies
• Kidney Cancer (Renal Cell Carcinoma)25 studies
• Heart Failure24 studies
• Acute Myeloid Leukemia23 studies
• Melanoma23 studies
• Bladder Cancer22 studies
• Alzheimer's Disease22 studies
• Triple-Negative Breast Cancer21 studies
• Cardiovascular Disease20 studies
• Crohn's Disease19 studies
• Stomach Cancer18 studies
• Esophageal Cancer17 studies
• Head and Neck Cancer17 studies
• Overweight16 studies
• Lymphoma15 studies
• Liver Cancer (Hepatocellular Carcinoma)14 studies
• Colon Cancer14 studies
• Stroke13 studies
• Ulcerative Colitis13 studies
• Small Cell Lung Cancer13 studies
• Myelodysplastic Syndromes13 studies
• Glioblastoma12 studies
• Soft Tissue Sarcoma12 studies
• Cervical Cancer12 studies
• Ischemic Stroke12 studies
• Sickle Cell Disease12 studies
• Brain Tumors12 studies
• Depression11 studies
• Blood Cancers10 studies
• Osteosarcoma10 studies
• Myeloproliferative Neoplasms10 studies
• Atrial Fibrillation10 studies
• Urothelial (Transitional Cell) Carcinoma10 studies
• Kidney Cancer10 studies
• Rectal Cancer10 studies
• Non-Hodgkin Lymphoma10 studies
• Myelofibrosis9 studies
• Neuroblastoma9 studies
• Glioma9 studies
• Asthma9 studies
• Type 2 Diabetes9 studies
• Heart Diseases9 studies
• Parkinson's Disease9 studies
• Neuroendocrine Tumors9 studies
• Steatotic Liver Disease8 studies
• Metabolic Disorders8 studies
• Esophageal Adenocarcinoma8 studies
• Amyotrophic Lateral Sclerosis8 studies
• Multiple Sclerosis8 studies
• Inflammatory Bowel Disease8 studies
• Pain After Surgery8 studies
• Schizophrenia8 studies
• Diffuse Large B-Cell Lymphoma8 studies
• Oral Cancer8 studies
• Mantle Cell Lymphoma8 studies
• Cystic Fibrosis8 studies
• Mild Cognitive Impairment8 studies
• Dementia8 studies
• Post-Traumatic Stress Disorder7 studies
• Spinal Cord Injuries7 studies
• Acute Lymphoblastic Leukemia7 studies
• Major Depressive Disorder7 studies
• COPD7 studies
• Flu7 studies
• Liver Cancer7 studies
• Chronic Lymphocytic Leukemia7 studies
• Oropharyngeal Cancer7 studies
• Brain Diseases7 studies
• Pain6 studies
• Cardiomyopathy6 studies
• Treatment-Resistant Depressive Disorder6 studies
• Lung Diseases6 studies
• Medulloblastoma6 studies
• Coronary Artery Disease6 studies
• Chronic Myeloid Leukemia6 studies
• Insulin Resistance6 studies
• Burkitt Lymphoma6 studies
• Non-Muscle Invasive Bladder Cancer6 studies
• Chronic Kidney Disease6 studies
• Follicular Lymphoma6 studies
• Laryngeal Cancer6 studies
• Squamous Cell Carcinoma6 studies
• Amyloidosis6 studies
• Neurologic Diseases6 studies
• Vascular Diseases5 studies
• Liposarcoma5 studies
• Digestive Diseases5 studies
• Geographic Atrophy5 studies
• Leukemia5 studies
• Esophageal Squamous Cell Carcinoma5 studies
• Aortic Valve Stenosis5 studies
• Lupus5 studies
• Diabetes5 studies
• Lupus Nephritis5 studies
• Epilepsy5 studies
• Glycogen Storage Disease Type II5 studies
• Chronic Inflammatory Demyelinating Polyradiculoneuropathy5 studies
• Gastrointestinal Cancers5 studies
• Skin Cancer5 studies
• Marginal Zone Lymphoma5 studies
• B-Cell Lymphoma5 studies
• Clear-cell metastatic renal cell carcinoma5 studies
• High Blood Pressure5 studies
• Diabetic Foot5 studies
• Bile Duct Cancer (Cholangiocarcinoma)5 studies
• Cerebral Hemorrhage5 studies
• Brain and Spinal Cord Tumors5 studies
• Bleeding5 studies
• Down Syndrome5 studies
• Myasthenia Gravis5 studies
• Diffuse Intrinsic Pontine Glioma5 studies
• Barrett Esophagus5 studies
• Chronic Progressive Multiple Sclerosis4 studies
• Anxiety4 studies
• Hidradenitis Suppurativa4 studies
• Pneumonia4 studies
• Obstructive Sleep Apnea4 studies
• Interstitial Lung Diseases4 studies
• Essential Thrombocythemia4 studies
• Macular Degeneration4 studies
• Anaplastic Large-Cell Lymphoma4 studies
• Migraine4 studies
• Endometriosis4 studies
• Acute Biphenotypic Leukemia4 studies
• Autoimmune Diseases4 studies
• Anemia4 studies
• Adenomatous Polyposis Coli4 studies
• Rheumatoid Arthritis4 studies
• Wilms Tumor4 studies
• Neurofibrosarcoma4 studies
• Brain Aneurysm4 studies
• Aneurysms4 studies
• Neoplasms by Histologic Type4 studies
• Hereditary Angioedemas4 studies
• Graft-Versus-Host Disease4 studies
• Bronchiolitis Obliterans Syndrome4 studies
• Sepsis4 studies
• Islet Cell Adenoma4 studies
• Hemophilia4 studies
• Neuroendocrine Carcinoma4 studies
• Ovarian Epithelial Carcinoma4 studies
• HIV4 studies
• Carotid Artery Disease4 studies
• Biliary Tract Cancer4 studies
• Astrocytoma4 studies
• Aplastic Anemia4 studies
• Smoking and Youth4 studies
• Liver Diseases4 studies
• T-Cell Lymphoma4 studies
• Immune System and Disorders4 studies
• Germ Cell and Embryonal Cancer4 studies
• Hemoglobinopathies4 studies
• Abdominal Aortic Aneurysm4 studies
• Hypopharyngeal Cancer4 studies
• Mesothelioma4 studies
• Atherosclerosis4 studies
• Precursor T-Cell Lymphoblastic Leukemia-Lymphoma4 studies
• Traumatic Brain Injury4 studies
• Drug Use and Addiction3 studies
• Blood Disorders3 studies
• Vascular Malformations3 studies
• Duchenne Muscular Dystrophy3 studies
• Ewing Sarcoma3 studies
• E. coli Infections3 studies
• Cholesterol3 studies
• Hyperlipidemias3 studies
• Urologic Cancer3 studies
• Acute Traumatic Stress Disorders3 studies
• Chronic Myelomonocytic Leukemia3 studies
• Juvenile Myelomonocytic Leukemia3 studies
• Genetic Disorders3 studies
• Rhabdoid Tumor3 studies
• Scleroderma3 studies
• Arrhythmia3 studies
• Type 1 Diabetes3 studies
• Disorders of Excessive Somnolence3 studies
• Insomnia3 studies
• Left Ventricular Dysfunction3 studies
• Synovial Sarcoma3 studies
• Heart Valve Diseases3 studies
• Carcinoma in Situ3 studies
• Urogenital Cancer3 studies
• Peripheral Nerve Disorders3 studies
• Merkel Cell Carcinoma3 studies
• Sudden Cardiac Arrest3 studies
• Thyroid Cancer3 studies
• Psychotic Disorders3 studies
• Leiomyosarcoma3 studies
• Renal Insufficiency3 studies
• Castration-Resistant Prostatic Cancer3 studies
• Desmoid Tumors3 studies
• Uterine Cancer3 studies
• Oligodendroglioma3 studies
• Aortic Aneurysm3 studies
• Aortic Dissection3 studies
• Retinoblastoma3 studies
• Kidney Failure3 studies
• Mycosis Fungoides3 studies
• Sezary Syndrome3 studies
• Meningioma3 studies
• Viral Infections3 studies
• Pulmonary Arterial Hypertension3 studies
• Pulmonary Hypertension3 studies
• Systolic Heart Failure3 studies
• Mitral Valve Insufficiency3 studies
• Immunoblastic Lymphadenopathy3 studies
• Rare Diseases3 studies
• Congenital Heart Defects3 studies
• Long COVID3 studies
• Mania3 studies
• Critical Illness3 studies
• Primitive Neuroectodermal Tumors3 studies
• Transthyretin-Related Hereditary Amyloidosis3 studies
• Familial Amyloid Neuropathies3 studies
• Urge Urinary Incontinence3 studies

From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.