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 551–600 of 1,694

Condition	Trials	Recruiting
Recurrent Non-small Cell Lung Cancer	16	1
Recurrent Non-Small Cell Lung Carcinoma	7	-
Recurrent Non-Small Lung Cell Cancer	1	-
Recurrent Oligodendroglioma	1	-
Recurrent or Metastatic Solid Tumors	2	2
Recurrent or Progressive Endometrial Cancer	1	1
Recurrent or Progressive Glioblastoma	1	-
Recurrent or Refractory Glypican 3 (GPC3)	1	1
Recurrent or Tophaceous Gout	1	-
Recurrent Oral Cavity Carcinoma	1	1
Recurrent Oral Cavity Squamous Cell Carcinoma	7	3
Recurrent Oral Cavity Verrucous Carcinoma	1	-
Recurrent Oropharyngeal Carcinoma	1	1
Recurrent Oropharyngeal Squamous Cell Carcinoma	6	2
Recurrent Osteosarcoma	14	3
Recurrent Ovarian Cancer	7	4
Recurrent Ovarian Carcinoma	40	13
Recurrent Ovarian Carcinosarcoma	2	2
Recurrent Ovarian Clear Cell Adenocarcinoma	5	3
Recurrent Ovarian Endometrioid Adenocarcinoma	4	3
Recurrent Ovarian Epithelial Cancer	15	-
Recurrent Ovarian Germ Cell Tumor	2	-
Recurrent Ovarian High Grade Serous Adenocarcinoma	2	2
Recurrent Ovarian Low Grade Endometrioid Adenocarcinoma	1	1
Recurrent Ovarian Serous Adenocarcinoma	1	1
Recurrent Ovary Cancer	2	2
Recurrent Pancreatic Adenocarcinoma	1	1
Recurrent Pancreatic Cancer	8	-
Recurrent Pancreatic Carcinoma	7	-
Recurrent Paranasal Sinus Squamous Cell Carcinoma	1	-
Recurrent Pediatric Brain Tumor	1	1
Recurrent Pericarditis	5	4
Recurrent Peripheral Primitive Neuroectodermal Tumor	1	1
Recurrent Peritoneal Malignant Mesothelioma	3	-
Recurrent Pharyngeal Squamous Cell Carcinoma	1	1
Recurrent Plasma Cell Myeloma	24	5
Recurrent Platinum-Resistant Fallopian Tube Carcinoma	2	1
Recurrent Platinum-Resistant Ovarian Carcinoma	6	5
Recurrent Platinum-Resistant Primary Peritoneal Carcinoma	1	-
Recurrent Pleural Malignant Mesothelioma	2	-
Recurrent Polymorphic Post-Transplant Lymphoproliferative Disorder	3	1
Recurrent Pregnancy Loss	3	2
Recurrent Primary Amyloidosis	1	-
Recurrent Primary Central Nervous System Neoplasm	3	1
Recurrent Primary Cutaneous Diffuse Large B-Cell Lymphoma, Leg Type	1	1
Recurrent Primary Cutaneous T-Cell Non-Hodgkin Lymphoma	5	2
Recurrent Primary Malignant Central Nervous System Neoplasm	1	1
Recurrent Primary Mediastinal (Thymic) Large B-Cell Cell Lymphoma	4	-
Recurrent Primary Mediastinal (Thymic) Large B-Cell Lymphoma	6	3
Recurrent Primary Mediastinal Large B-Cell Lymphoma	4	3

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

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