2026 data ClinicalTrials.gov official source

Conditions: C

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

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

2,954 conditions starting with "C"

Showing 2,051–2,100 of 2,954

Condition	Trials	Recruiting
Colon Adenoma	3	-
Colon Adenomas	1	-
Colon and Rectal Cancer	1	1
Colon Cancer	99	34
Colon Cancer Liver Metastases	1	1
Colon Cancer Liver Metastasis	1	1
Colon Cancer Screening	5	1
Colon Cancer Surveillance	1	-
Colon Carcinoma	8	1
Colon Cleansing	2	-
Colon Disease	2	-
Colon Inflammation	1	-
Colon Lesion	1	-
Colon Lesions	1	-
Colon Mucinous Adenocarcinoma	1	-
Colon Neoplasm	1	-
Colon Neoplasms	2	-
Colon Polyp	4	-
Colon Polyps	6	2
Colon Resection	1	1
Colon Signet Ring Cell Adenocarcinoma	1	-
Colon/Rectal Ca	1	-
Colonic Cancer	3	-
Colonic Diseases	7	2
Colonic Neoplasm	1	-
Colonic Neoplasms	15	6
Colonic Polyp	2	1
Colonic Polyps	7	1
Colonic Surgery	2	2
Colonic Transit	1	-
Colonization, Asymptomatic	1	1
Colonoscopy	21	4
Colonoscopy Adherence	1	-
Colonoscopy, Colorectal	1	-
Color Blindness, Acquired	1	-
Colorectal	3	3
Colorectal (Colon or Rectal) Cancer	3	3
Colorectal Adenocarcinoma	20	10
Colorectal Adenocarcinoma Metastatic in the Liver	1	1
Colorectal Adenoma	9	4
Colorectal Adenoma With Severe Dysplasia	1	-
Colorectal Adenomas	1	-
Colorectal Adenomatous Polyp	1	1
Colorectal Adenomatous Polyps	3	-
Colorectal Anastomosis	1	1
Colorectal Cancer	382	154
Colorectal Cancer (CRC)	20	15
Colorectal Cancer (CRC) Screening	1	1
Colorectal Cancer (Diagnosis)	3	2
Colorectal Cancer (MSI-H)	1	1

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