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 2,901–2,928 of 2,928

Condition	Trials	Recruiting
Cystitis;Puerperium	1	-
Cystocele	1	-
Cystoid Macular Edema	3	1
Cystoid Macular Edema, Postoperative	1	-
Cystoscopy	2	-
Cysts	1	-
CYTALUX (Pafolacianine) Injection	1	1
Cytochrome P-450 CYP2D6	1	-
Cytochrome P450 CYP2C19 Enzyme Deficiency	1	-
Cytochrome P450 CYP2C9 Enzyme Deficiency	1	-
Cytochrome P450 CYP2D6 Enzyme Deficiency	1	-
Cytogenetic Abnormality	1	1
Cytokine	1	-
Cytokine Release Syndrome	4	3
Cytomegaloviral Infection	4	2
Cytomegalovirus	6	3
Cytomegalovirus (CMV)	2	2
Cytomegalovirus (CMV) Infection	1	-
Cytomegalovirus Cell Mediated Immunity	1	1
Cytomegalovirus Congenital	1	-
Cytomegalovirus Disease	1	-
Cytomegalovirus Infection	6	2
Cytomegalovirus Infections	25	9
Cytomegalovirus Positive	1	-
Cytomegalovirus Prophylaxis	1	1
Cytomegalovirus Retinitis	7	-
Cytopenia	12	8
Cytopenias	6	-

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