2026 data ClinicalTrials.gov official source

Conditions: C

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

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

2,956 conditions starting with "C"

Showing 2,851–2,900 of 2,956

Condition	Trials	Recruiting
Cutaneous Melanocytic Neoplasm	1	1
Cutaneous Melanoma	31	16
Cutaneous Melanoma by AJCC V7 Stage	2	1
Cutaneous Melanoma, Stage II	1	1
Cutaneous Melanoma, Stage III	3	2
Cutaneous Melanoma, Stage IV	2	1
Cutaneous Metastases	1	1
Cutaneous Neurofibroma	4	2
Cutaneous Neurofibromas	1	-
Cutaneous Nodular Melanoma	1	-
Cutaneous Polyarteritis Nodosa	1	1
Cutaneous Porphyrias	1	1
Cutaneous Sarcoidosis	1	1
Cutaneous Sarcoma	1	1
Cutaneous Sclerosis	1	-
Cutaneous Squamous Cell Cancer	3	3
Cutaneous Squamous Cell Carcinoma	19	11
Cutaneous Squamous Cell Carcinoma (CSCC)	5	4
Cutaneous Squamous Cell Carcinoma in Situ	1	-
Cutaneous Squamous Cell Carcinoma of the Head and Neck	3	2
Cutaneous Sutures and Scar Cosmesis	1	-
Cutaneous T Cell Lymphoma	24	15
Cutaneous T Cell Lymphoma (CTCL)	2	1
Cutaneous T-Cell Lymphoma Refractory	2	1
Cutaneous T-Cell Lymphoma, Relapsed	1	-
Cutaneous T-Cell Lymphoma, Unspecified	1	1
Cutaneous T-Cell Lymphoma/Mycosis Fungoides	1	-
Cutaneous T-Cell Lymphomas	1	1
Cutaneous Toxicity From ICI Therapy	1	-
Cutaneous Tumor	2	1
Cutaneous Vasculitis	1	1
Cutaneous Venous Malformations	1	1
Cutaneous Wounds	1	1
Cutaneous/Peripheral T-Cell Lymphoma	1	1
Cutibacterium Acnes	3	1
Cutibacterium Acnes Contamination	1	1
Cutis Laxa Facialis	1	-
Cutting	1	-
CVA	2	-
CVA (Cerebrovascular Accident)	4	3
CVD	4	-
CVD - Cardiovascular Disease	3	2
CVID	3	1
Cyclic Neutropenia	1	1
Cyclic Vomiting Syndrome	4	3
Cyclical Breast Pain	1	-
Cyclin-Dependent Kinase-Like 5 Deficiency Disorder	1	-
Cyclothymia	1	-
Cynophobia	1	1
CYP2C19 Genetic Variants	1	1

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