2026 data ClinicalTrials.gov official source

Conditions: R

Compiled by PlainTrial Editorial, Clinical Trial Intelligence Editorial Team · January 1, 2026

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 1,301–1,350 of 1,694

Condition	Trials	Recruiting
Resectable Pancreatic Cancer	4	2
Resectable Pancreatic Cancers	1	-
Resectable Pancreatic Carcinoma	3	1
Resectable Pancreatic Ductal Adenocarcinoma	6	3
Resectable Pancreatic Ductal Adenocarcinoma (PDAC)	1	1
Resectable Sarcoma	2	2
Resectable Skin Acantholytic Squamous Cell Carcinoma	1	1
Resectable Skin Clear Cell Squamous Cell Carcinoma	1	1
Resectable Skin Squamous Cell Carcinoma	2	1
Resectable Soft Tissue Sarcoma	3	-
Resectable Stage IIA to IIIB Non-small Cell Lung Cancer	1	-
Resectable Undifferentiated Pleomorphic Sarcoma	2	-
Resected Mass	1	-
Resected Pancreatic Adenocarcinoma	1	1
Resected Polyp	1	-
Resection	1	1
reSET	1	1
Resident Experience	1	-
Resident Workflow	1	-
Residential Treatment Program	1	1
Residual	1	1
Residual Cancer	1	1
Residual Disease	5	2
Residual Glioma	1	-
Residual Invasive Breast Cancer	1	-
Residual Limb Pain	2	1
Residual Limbs Pain	1	1
Residual Neuromuscular Blockade	1	-
Residual Paralysis, Post Anesthesia	1	-
Residual, Progressive or Recurrent Grade II or III Meningioma	1	1
Resilience	10	4
Resilience, Psychological	5	3
Resistance Bacterial	1	-
Resistance Exercise	5	3
Resistance Training	8	1
Resistant Cancer	3	2
Resistant Hypertension	5	2
Resistant Solid Malignancies	1	-
Resistant Starch	1	-
Resolution	1	-
Resonance Raman Spectroscopy for Dietary Carotenoid Intake	1	-
Resource Utilization	1	1
Respect	1	-
Respiration Disorders	2	1
Respiration, Artificial	7	3
Respiratory	1	1
Respiratory Aspiration of Gastric Content	1	1
Respiratory Aspiration of Gastric Contents	1	-
Respiratory Compliance	1	-
Respiratory Complication	4	4

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