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Clinical trials in St. Louis, MO

1,338 clinical studies are recruiting at sites in and around St. Louis (within about 30 miles).

Studies for healthy volunteers in St. Louis — 108 studies

Studies by condition

• Non-Small Cell Lung Cancer71 studies
• Breast Cancer65 studies
• Metastatic Cancer53 studies
• Colorectal Cancer49 studies
• Prostate Cancer47 studies
• Cancer (all types)46 studies
• Lung Cancer39 studies
• Ovarian Cancer36 studies
• Pancreatic Cancer33 studies
• Endometrial Cancer29 studies
• Head and Neck Squamous Cell Carcinoma28 studies
• Heart Failure26 studies
• Alzheimer's Disease23 studies
• Multiple Myeloma23 studies
• Obesity23 studies
• Acute Myeloid Leukemia23 studies
• Kidney Cancer (Renal Cell Carcinoma)22 studies
• Bladder Cancer22 studies
• Cardiovascular Disease20 studies
• Melanoma20 studies
• Crohn's Disease19 studies
• Triple-Negative Breast Cancer19 studies
• Stomach Cancer18 studies
• Esophageal Cancer17 studies
• Lymphoma15 studies
• Colon Cancer15 studies
• Depression15 studies
• Head and Neck Cancer14 studies
• Soft Tissue Sarcoma14 studies
• Myelodysplastic Syndromes14 studies
• Overweight14 studies
• Stroke13 studies
• Cervical Cancer13 studies
• Liver Cancer (Hepatocellular Carcinoma)13 studies
• Small Cell Lung Cancer13 studies
• Ulcerative Colitis13 studies
• Sickle Cell Disease12 studies
• Brain Tumors12 studies
• Glioblastoma12 studies
• Ischemic Stroke11 studies
• Rectal Cancer11 studies
• Non-Hodgkin Lymphoma11 studies
• Glioma10 studies
• Blood Cancers10 studies
• Osteosarcoma10 studies
• Atrial Fibrillation9 studies
• Amyotrophic Lateral Sclerosis9 studies
• Esophageal Adenocarcinoma9 studies
• Mild Cognitive Impairment9 studies
• Dementia9 studies
• Kidney Cancer9 studies
• Neuroblastoma9 studies
• Parkinson's Disease9 studies
• Myelofibrosis8 studies
• Myeloproliferative Neoplasms8 studies
• Heart Diseases8 studies
• Oral Cancer8 studies
• Neuroendocrine Tumors8 studies
• Epilepsy8 studies
• Chronic Lymphocytic Leukemia8 studies
• Diffuse Large B-Cell Lymphoma8 studies
• Multiple Sclerosis8 studies
• Type 2 Diabetes8 studies
• Liver Cancer8 studies
• Cystic Fibrosis8 studies
• Mantle Cell Lymphoma8 studies
• Pain After Surgery8 studies
• Laryngeal Cancer7 studies
• Metabolic Disorders7 studies
• Steatotic Liver Disease7 studies
• Spinal Cord Injuries7 studies
• Asthma7 studies
• Brain Diseases7 studies
• Major Depressive Disorder7 studies
• Anxiety7 studies
• Post-Traumatic Stress Disorder7 studies
• Myasthenia Gravis7 studies
• Schizophrenia7 studies
• Amyloidosis6 studies
• Cardiomyopathy6 studies
• Non-Muscle Invasive Bladder Cancer6 studies
• Acute Lymphoblastic Leukemia6 studies
• Urothelial (Transitional Cell) Carcinoma6 studies
• Chronic Kidney Disease6 studies
• Burkitt Lymphoma6 studies
• Follicular Lymphoma6 studies
• Marginal Zone Lymphoma6 studies
• Medulloblastoma6 studies
• Neurologic Diseases6 studies
• Inflammatory Bowel Disease6 studies
• Lung Diseases6 studies
• Gastrointestinal Cancers6 studies
• Coronary Artery Disease6 studies
• Oropharyngeal Cancer5 studies
• Diabetes5 studies
• Geographic Atrophy5 studies
• Lupus5 studies
• Lupus Nephritis5 studies
• Digestive Diseases5 studies
• Diffuse Intrinsic Pontine Glioma5 studies
• Brain and Spinal Cord Tumors5 studies
• Atherosclerosis5 studies
• Abdominal Aortic Aneurysm5 studies
• Chronic Inflammatory Demyelinating Polyradiculoneuropathy5 studies
• Treatment-Resistant Depressive Disorder5 studies
• Islet Cell Adenoma5 studies
• Glycogen Storage Disease Type II5 studies
• High Blood Pressure5 studies
• Liposarcoma5 studies
• Diabetic Foot5 studies
• B-Cell Lymphoma5 studies
• Cerebral Hemorrhage5 studies
• Barrett Esophagus5 studies
• Aortic Valve Stenosis5 studies
• T-Cell Lymphoma5 studies
• Bleeding5 studies
• Pain5 studies
• Anemia4 studies
• Macular Degeneration4 studies
• Thyroid Cancer4 studies
• Liver Diseases4 studies
• Graft-Versus-Host Disease4 studies
• Insulin Resistance4 studies
• Uterine Cancer4 studies
• Duchenne Muscular Dystrophy4 studies
• Wilms Tumor4 studies
• Neurofibrosarcoma4 studies
• Leukemia4 studies
• Chronic Myeloid Leukemia4 studies
• Mesothelioma4 studies
• Chronic Progressive Multiple Sclerosis4 studies
• Interstitial Lung Diseases4 studies
• Rheumatoid Arthritis4 studies
• Migraine4 studies
• Hypopharyngeal Cancer4 studies
• Germ Cell and Embryonal Cancer4 studies
• Clear-cell metastatic renal cell carcinoma4 studies
• Meningioma4 studies
• Aplastic Anemia4 studies
• Hemoglobinopathies4 studies
• Pneumonia4 studies
• Smoking and Youth4 studies
• Down Syndrome4 studies
• Acute Biphenotypic Leukemia4 studies
• Esophageal Squamous Cell Carcinoma4 studies
• Brain Aneurysm4 studies
• Autoimmune Diseases4 studies
• Traumatic Brain Injury4 studies
• Endometriosis4 studies
• HIV4 studies
• Hereditary Angioedemas4 studies
• Bronchiolitis Obliterans Syndrome4 studies
• Aortic Dissection4 studies
• Chronic Pain4 studies
• Ovarian Epithelial Carcinoma4 studies
• Carotid Artery Disease4 studies
• COPD4 studies
• Skin Cancer4 studies
• Adenomatous Polyposis Coli4 studies
• Immune System and Disorders4 studies
• Vascular Diseases4 studies
• Anaplastic Large-Cell Lymphoma4 studies
• Post-COVID Conditions (Long COVID)4 studies
• Flu4 studies
• Familial Amyloid Neuropathies3 studies
• Transthyretin-Related Hereditary Amyloidosis3 studies
• Mitral Valve Insufficiency3 studies
• Kaposi Sarcoma3 studies
• Heart Valve Diseases3 studies
• Carcinoma in Situ3 studies
• Desmoid Tumors3 studies
• Type 1 Diabetes3 studies
• Rhabdoid Tumor3 studies
• E. coli Infections3 studies
• Seizures3 studies
• Neoplasms by Histologic Type3 studies
• Hemophilia3 studies
• Hearing Loss3 studies
• Left Ventricular Dysfunction3 studies
• Primitive Neuroectodermal Tumors3 studies
• Pulmonary Hypertension3 studies
• Disorders of Excessive Somnolence3 studies
• Insomnia3 studies
• Astrocytoma3 studies
• Viral Infections3 studies
• Oligodendroglioma3 studies
• Neuroendocrine Carcinoma3 studies
• Retinoblastoma3 studies
• Psoriatic Arthritis3 studies
• Urogenital Cancer3 studies
• Drug Use and Addiction3 studies
• Rare Diseases3 studies
• Sepsis3 studies
• Critical Illness3 studies
• Essential Thrombocythemia3 studies
• Acute Traumatic Stress Disorders3 studies
• Aneurysms3 studies
• Ewing Sarcoma3 studies
• Mania3 studies
• Scleroderma3 studies
• Hidradenitis Suppurativa3 studies
• Renal Insufficiency3 studies
• Obstructive Sleep Apnea3 studies
• Leiomyosarcoma3 studies
• Synovial Sarcoma3 studies
• Aortic Aneurysm3 studies
• Peripheral Nerve Disorders3 studies
• Merkel Cell Carcinoma3 studies
• Gastro-enteropancreatic neuroendocrine tumor3 studies
• Biliary Tract Cancer3 studies
• Castration-Resistant Prostatic Cancer3 studies
• Squamous Cell Carcinoma3 studies
• Low Back Pain3 studies
• Arrhythmia3 studies
• Precursor T-Cell Lymphoblastic Leukemia-Lymphoma3 studies
• Mycosis Fungoides3 studies
• Sezary Syndrome3 studies
• Immunoblastic Lymphadenopathy3 studies
• Bile Duct Cancer (Cholangiocarcinoma)3 studies
• Congenital Heart Defects3 studies
• Cholesterol3 studies
• Gastrointestinal Stromal Tumors3 studies
• Pulmonary Arterial Hypertension3 studies
• Kidney Failure3 studies

From ClinicalTrials.gov, data retrieved Sep 29, 2026. Each study sets its own eligibility; the study team decides who can join.