2026 data ClinicalTrials.gov official source

Conditions: C

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

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2,928 conditions starting with "C"

Showing 2,451–2,500 of 2,928

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Condition Trials
Continued Access to Study Treatment(s), Cancers With a Mass, Bulky Tumor, Nodule, Lump, Advanced Cancer, Advanced Solid Tumors, Advanced Solid Malignancies 1
Continuity of Patient Care 2
Continuous Ambulatory Peritoneal Dialysis 1
Continuous Femoral Nerve Blocks in Healthy Volunteers 1
Continuous Glucose Monitoring 4
Continuous Glucose Monitoring System 1
Continuous Positive Airway Pressure 3
Continuous Renal Replacement Therapy 1
Continuous Renal Replacement Therapy (CRRT) 1
Contraception 73
Contraception Behavior 12
Contraception Use 1
Contraceptive 1
Contraceptive Implant 1
Contraceptive Usage 12
Contraceptive Use 1
Contraceptives, Oral 1
Contralateral Breast Cancer 1
Contrast Allergies 1
Contrast Enhanced Computed Tomography 1
Contrast Enhanced Computed Tomography (CT) Scanning 1
Contrast Enhanced Images vs. Non-contrast Images 1
Contrast Enhancement in Magnetic Resonance Imaging 2
Contrast Induced Acute Kidney Injury 2
Contrast Induced Nephropathy 4
Contrast Media 1
Contrast Sensitivity 1
Contrast-induced Acute Kidney Injury (CI-AKI) Following Coronary Angiogram (CI-AKI) 1
Contrast-induced Nephropathy Following Coronary Angiogram (CIN) 1
Control 6
Control - No Incentive for Flu Vaccine 1
Control Condition 6
Control Group 1
Control Locus 1
Control Subjects 4
Controlled Human Infection 1
Controlled Hypertension 1
Controlling Mild to Moderate Bleeding During Surgery 1
Controls 2
Convalescence 2
Convalescent Plasma 2
Conventional Chondrosarcoma 1
Conventional Magnetic Resonance Imaging 1
Convergence Insufficiency 7
Conversion 1
Convulsion, Non-Epileptic 5
Cooking 1
Cooking Skills 1
Cooling 1
COPD 86

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