# The Effect of Cap-assisted Water Exchange Colonoscopy on Straight Passage of the Colonoscope Through the Sigmoid Colon, Without Loop Formation

> **NCT06992856** · NA · NOT_YET_RECRUITING · sponsor: **Fudan University** · enrollment: 531 (estimated)

## Conditions studied

- Colonoscope Passage

## Interventions

- **PROCEDURE:** Conventional colonoscope passage
- **PROCEDURE:** left colon water exchange colonoscope passage
- **PROCEDURE:** cap-assisted left colon water exchange colonoscope passage

## Key facts

- **NCT ID:** NCT06992856
- **Lead sponsor:** Fudan University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** NOT_YET_RECRUITING
- **Start date:** 2025-06-01
- **Primary completion:** 2026-06-01
- **Final completion:** 2026-06-01
- **Target enrollment:** 531 (ESTIMATED)
- **Last updated:** 2025-05-28


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06992856

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06992856, "The Effect of Cap-assisted Water Exchange Colonoscopy on Straight Passage of the Colonoscope Through the Sigmoid Colon, Without Loop Formation". Retrieved via AI Analytics 2026-06-23 from https://api.ai-analytics.org/clinical/NCT06992856. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*