Diagnostic Performance and Feasibility of the CC100 Colon Capsule Endoscopy System: A Prospective Multicenter Study

Area of Science:

• Gastroenterology
• Medical Devices
• Diagnostic Imaging

Background:

• Conventional colonoscopy faces limitations in large-scale colorectal cancer screening due to invasiveness and accessibility issues.
• Colon capsule endoscopy (CCE) presents a less invasive option but has faced challenges with examination completeness and diagnostic accuracy.

Purpose of the Study:

• To evaluate the diagnostic accuracy and completeness of a next-generation colon capsule endoscopy (CCE) system compared to conventional colonoscopy for colorectal cancer screening.

Main Methods:

• A prospective, multicenter diagnostic accuracy study involving 136 participants at three tertiary hospitals in China.
• Participants underwent CC100 colon capsule endoscopy followed by conventional colonoscopy as the reference standard.
• Primary outcomes included complete colonic visualization and lesion detection agreement; secondary outcomes assessed lesion-specific performance and safety.

Main Results:

• Complete colonic visualization was achieved in 91.18% of participants with CC100 CCE.
• Overall agreement with colonoscopy for lesion detection was 83.82% (κ = 0.673).
• For polyps ≥6 mm, CC100 CCE demonstrated 86.67% sensitivity and 98.63% specificity, with no adverse events.

Conclusions:

• A next-generation CCE system can achieve acceptable examination completeness.
• The CC100 CCE system shows clinically meaningful diagnostic concordance with conventional colonoscopy for colorectal lesion detection.