NCT03399045

9 Minutes for Colonoscopy Withdrawal

Impact of 9-minute Withdrawal Time on Adenoma Detection Rate：a Multicenter, Prospective, Randomized Controlled Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 1,027 (actual)
• Sponsor: Changhai Hospital · Academic / Other
• Sex: All
• Age: 40 Years – 85 Years
• Healthy volunteers: Not accepted

Summary

A withdrawal time of at least 6 minutes has been considered to be necessary to guarantee the adenoma detection rate and the critical quality criterion of colonoscopy. However, several large observational investigations demonstrated that 9 minutes will be in favor of higher adenoma detection rate and lower risk of interval colorectal cancer, when compared with 6-minute withdrawal. Meanwhile, a few studies also indicated that no significant benefit were observed in longer withdrawal time. Up to now, no randomized controlled trials have been conducted to give a definitive conclusion. Therefore, we performed a multicenter, prospective, randomized Controlled trial to compare adenoma detection rate of 6-minute and 9-minute withdrawal in colonoscopy.

Conditions

• Colon Polyps
• Colorectal Adenomas

Interventions

Type	Name	Description
PROCEDURE	9-minute withdrawal	Patients in 9-minute withdrawal group will be carefully observed for 9 minutes during the colonoscopy withdraw
PROCEDURE	6-minute withdrawal	Patients in 6-minute withdrawal group will be carefully observed for 6 minutes during the colonoscopy withdraw

Timeline

• Start date: 2018-01-20
• Primary completion: 2019-07-01
• Completion: 2019-07-06
• First posted: 2018-01-16
• Last updated: 2020-01-02

Locations

1 site across 1 country: China