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 901–950 of 2,954

Condition	Trials	Recruiting
Challenging Behaviour	1	1
Change in Bone Mineral Density	1	1
Change in Dietary Outcomes	1	-
Change in Sustained Attention	2	2
Changes in Olfactory Behavior Across Different Contexts Associated With Different Amygdala Subregions	1	1
Channelopathy	1	1
Chaotic Aneuploidy	1	1
Chaperonin-Containing TCP-1	1	-
Character	1	-
Characteristics of Subcutaneous Fat	1	-
Charcot Joint of Foot	1	-
Charcot Marie Tooth Disease	8	3
Charcot Marie Tooth Disease (CMT)	3	2
Charcot-Marie-Tooth	2	1
Charcot-Marie-Tooth Disease Type 2	1	1
Charcot-Marie-Tooth Disease Type 2A	1	1
Charcot-Marie-Tooth Disease Type 2A1	1	1
Charcot-Marie-Tooth Disease Type 2A2B	1	1
Charcot-Marie-Tooth Disease Type 2B2	1	1
Charcot-Marie-Tooth Disease Type 4B1	1	1
Charcot-Marie-Tooth Disease, Type 2C	1	1
Charcot-Marie-Tooth Disease, Type IA	1	1
Charcot-Marie-Tooth Disease, Type Ia (Disorder)	1	1
Chatbot	1	1
CHD	2	-
CHD - Congenital Heart Disease	1	1
Checkpoint Kinase 2 Gene Mutation	1	1
Chediak-Higashi Syndrome	2	1
Cheek	1	-
Cheek Augmentation	1	-
Cheek Wrinkles	2	1
CHEK1 Gene Mutation	1	-
CHEK2 Gene Mutation	2	-
Chemical Injuries	1	-
Chemically-Induced Disorders	4	3
Chemo Fog	2	1
Chemo-brain	5	3
Chemobrain	1	-
Chemonaive	1	-
Chemoradiation	1	1
Chemotherapeutic Agent Toxicity	1	-
Chemotherapeutic Drug - Induced Nephropathy	1	1
Chemotherapeutic Toxicity	3	2
Chemotherapy	4	2
Chemotherapy Effect	8	5
Chemotherapy Induced Neuropathic Pain	1	1
Chemotherapy Induced Peripheral Neuropathy (CIPN)	3	3
Chemotherapy Induced Thrombocytopenia	5	1
Chemotherapy Resistant Acute Lymphoblastic Leukemia	1	-
Chemotherapy Side Effects	2	2

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