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NCT Number: NCT02594813

Bleeding Rate After EGD and Colonoscopy in Patients Who Continue to Take Antithrombotic Agents

The bleeding rate of both EGD (including biopsy) and colonoscopy (including biopsy, cold or hot snare polypectomy, or EMR) in patients who continue to take various antithrombotic drugs is studied prospectively. The immediate or delayed bleeding that requires hemostatic clipping or other endoscopic treatments is defined as the bleeding. Immediate bleeding requiring hemostatic clipping is defined as spurting or oozing which continued for more than 30 seconds. Delayed bleeding is defined as bleeding that requires the endoscopic treatment within 2 weeks after endoscopy. Prophylactic clipping is not performed after taking biopsy and doing polypectomy. Additionally, investigators evaluate the rate of injured submucosal arteries of the excised specimen when the bleeding occurs.

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Key information

Conditions

Bleeding After GI Endoscopy

Age range

20 year–90 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Showa Inan General Hospital

Komagane, Japan

Location status: Recruiting

Location contact

Akira Horiuchi, MD

CONTACT

[email protected]

81263288528 ext. 3012

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Inclusion criteria is all patients who continue to take antithrombotic drugs and undergo EGD or colonoscopy

Exclusion criteria

  • Patients who take prophylactic clipping after biopsy or polypectomy American Society of Anesthesiologists physical status of class IV or V

Treatment and study plan

Biopsy, cold or hot snare polypectomy, or EMR

Procedure

Primary outcomes

  1. the rate of delayed bleeding

    Time frame: 10 years

    Delayed bleeding defined as bleeding that required endoscopic treatment within 2 weeks after the procedure.

Secondary outcomes

  1. the rate of immediate bleeding

    Time frame: 10 years

    Immediate bleeding defined as spurting or oozing which continued for more than 30 seconds.

  2. the number of clip used

    Time frame: 10 years

    The number of clip used during the procedures.

Study contacts

Contact information is provided by the study sponsor or research team.

Akira Horiuchi, MD

CONTACT

[email protected]

0265822121

Sponsors and collaborators

Lead sponsor

Showa Inan General Hospital

Other

Registry information

Acronym: EGD

Important dates

Study start
2015
Primary completion
2026
Study completion
2026
First posted
Nov 3, 2015
Registry last updated
May 15, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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