2026 data ClinicalTrials.gov official source

Conditions: C

Compiled by PlainTrial · January 1, 2026

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

2,928 conditions starting with "C"

Showing 2,551–2,600 of 2,928

Condition	Trials	Recruiting
Corneal Staining	1	-
Corneal Swelling	1	-
Corneal Transplant	1	-
Corneal Transplant Failure	2	1
Corneal Transplant Rejection	1	-
Corneal Ulcer	2	2
Corneal Wound Healing	1	-
Cornelia de Lange Syndrome	2	2
Corona Virus Infection	29	8
Coronary Aneurysm	1	-
Coronary Angiography	2	1
Coronary Arterial Disease (CAD)	6	5
Coronary Arteriosclerosis	12	-
Coronary Artery Bypass	4	3
Coronary Artery Bypass Graft	2	-
Coronary Artery Bypass Graft (CABG)	2	1
Coronary Artery Bypass Graft and/or Aortic Valve Replacement Surgery	1	-
Coronary Artery Bypass Graft Surgery	2	-
Coronary Artery Bypass Graft Surgery Patients	1	-
Coronary Artery Bypass Grafting	3	2
Coronary Artery Bypass Grafting Surgery (CABG)	1	1
Coronary Artery Calcification	5	1
Coronary Artery Disease	220	57
Coronary Artery Disease (CAD)	6	2
Coronary Artery Diseases	1	-
Coronary Artery Lesions	1	1
Coronary Artery Stenoses	1	-
Coronary Artery Stenosis	5	1
Coronary Artery Vasospasm	1	-
Coronary Atherosclerosis	6	2
Coronary Atherosclerosis of Native Coronary Artery	1	1
Coronary Bifurcation Lesions	1	1
Coronary Bypass Graft Stenosis	2	1
Coronary Calcification	2	1
Coronary Computed Tomographic Angiography	1	1
Coronary Disease	36	1
Coronary Endothelial Dysfunction	1	-
Coronary Heart Disease	20	3
Coronary Heart Disease (CHD)	2	1
Coronary Microvascular Disease	3	1
Coronary Microvascular Dysfunction	8	5
Coronary Microvascular Dysfunction (CMD)	2	2
Coronary Occlusions	1	-
Coronary Restenosis	2	-
Coronary Revascularization	1	-
Coronary Risk Equivalent	1	-
Coronary Stenosis	6	2
Coronary Vasospasm	1	-
Coronary; Ischemic	1	1
Coronary; Obstruction	1	-

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