Terminated PHASE4 INTERVENTIONAL 2-arm NCT01510977

Second Bowel Preparation for Colonoscopy Failure

The Outcome of a Second Preparation for Colonoscopy After Preparation Failure in the First Procedure: a Prospective Randomized Controlled Study

Sponsor: Asan Medical Center

Conditions Colonoscopy Failure Poor Bowel Preparation

Interventions polyethylene glycol polyethylene glycol, Bisacodyl

Updated 6 times since 2017 Last updated: Feb 11, 2013 Started: Nov 30, 2011 Primary completion: Feb 28, 2013 Completion: Feb 28, 2013

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Terminated

This trial was terminated. No reason was provided.

Other terminated trials from Asan Medical Center

See all terminations from Asan Medical Center

This PHASE4 trial investigates Colonoscopy Failure and Poor Bowel Preparation and is currently terminated or withdrawn. Asan Medical Center leads this study, which shows 6 recorded versions since 2011 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

6 versions recorded

Sep 2025 — Present [monthly]

Terminated PHASE4
Sep 2024 — Sep 2025 [monthly]

Terminated PHASE4
Jul 2024 — Sep 2024 [monthly]

Terminated PHASE4
Jan 2021 — Jul 2024 [monthly]

Terminated PHASE4
Jun 2018 — Jan 2021 [monthly]

Terminated PHASE4

▶ Show 1 earlier version

Jan 2017 — Jun 2018 [monthly]

Terminated PHASE4

First recorded

Nov 2011

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Asan Medical Center

Data source: Asan Medical Center

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Seoul, South Korea