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 2,051–2,100 of 2,928

Condition	Trials	Recruiting
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	394	162
Colorectal Cancer (CRC)	20	15
Colorectal Cancer (CRC) Screening	1	1
Colorectal Cancer (Diagnosis)	3	2
Colorectal Cancer (MSI-H)	1	1
ColoRectal Cancer and Inflammatory Bowel Disease	1	1
Colorectal Cancer and Melanoma	1	-
Colorectal Cancer Control and Prevention	1	1
Colorectal Cancer Liver Metastases (CRLM)	2	2
Colorectal Cancer Metastatic	19	10
Colorectal Cancer Metastatic to Liver	1	-
Colorectal Cancer Prevention	4	3
Colorectal Cancer Recurrent	3	2
Colorectal Cancer Risk	1	1
Colorectal Cancer Screening	20	10
Colorectal Cancer Stage I	3	2
Colorectal Cancer Stage II	7	6
Colorectal Cancer Stage III	7	6
Colorectal Cancer Stage IV	5	3
Colorectal Cancer Without Liver Metastases	1	-
Colorectal Cancer, Genetics of	1	-
Colorectal Cancer, Non-small Cell Lung Carcinoma (Adenocarcinoma), Triple Negative Breast Cancer, Renal Cell Carcinoma	1	-
Colorectal Cancer, NOS	1	1

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