2026 data ClinicalTrials.gov official source

Conditions: R

Every condition beginning with R that has a registered US clinical trial, with how many studies cover each.

1,694 conditions starting with "R"

Showing 951–1,000 of 1,694

Condition Trials
Refractory Transformed 1
Refractory Transformed B-cell Non-Hodgkin Lymphoma 3
Refractory Transformed Chronic Lymphocytic Leukemia 5
Refractory Transformed Follicular Lymphoma to Diffuse Large B-Cell Lymphoma 2
Refractory Transformed Non-Hodgkin Lymphoma 3
Refractory Tumor 2
Refractory Urothelial Carcinoma 1
Refractory Ventricular Tachycardia 1
Refractory Viral Infections 1
Refractory Visual Pathway Glioma 2
Refractory WHO Grade 1 Glioma 1
Refractory WHO Grade II Glioma 1
Refractory WHO Grade III Glioma 1
Refractory/Relapse Acute Myeloid Leukemia 1
Refractory/Relapsed Chronic Lymphocytic Leukemia 1
Regional Anesthesia 3
Regional Anesthesia, Saphenous Nerve Block 1
Regional Citrate Anticoagulation (RCA) 1
Regional Digestive System Neuroendocrine Tumor G1 1
Regional Gastrointestinal Carcinoid Tumor 1
Regional Neuroblastoma 4
Regression 1
Regressive Autism 1
Regulation of Energy Expenditure 1
Regulation, Emotion 1
Regurgitation 1
Regurgitation, Aortic Valve 1
Rehabilitation 16
Rehydration 1
Reimplantation for Periprosthetic Joint Infection 1
Reintegration 1
Reintegration Difficulties 2
Reiter's Disease 1
Rejection 1
Rejection Acute Renal 1
Rejection Chronic Renal 2
Rejection of Kidney Allograft 1
Rejection of Renal Transplant 1
Rejection Sensitivity 1
Rejection, Transplant 1
Rejuvenation 2
Relapse 9
Relapse Diffuse Large B Cell Lymphoma 1
Relapse Leukemia 2
Relapse Multiple Myeloma 8
Relapse Remitting Multiple Sclerosis 1
Relapse/Refractory Multiple Myeloma 1
Relapsed 3
Relapsed / Refractory Osteosarcoma 1
Relapsed Acute Biphenotypic Leukemia 1

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Data sourced from official public datasets. See our methodology for details.