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Does Early Re-administration of Aspirin/Clopidogrel Increase the Risk of Bleeding From Artificial Ulcer After EMR or ESD?

Early Gastric Cancer Clinical Trial

Official title:
Does Early Re-administration of Aspirin/Clopidogrel Increase the Risk of Bleeding From Artificial Ulcer After EMR or ESD?

Clinical Trial Summary

Aspirin and/or clopidogrel users are increasing due to increased prevalence of cardiovascular or cerebrovascular disease with an aging society in Korea. Also, the patients having endoscopic mucosal resection (EMR) or endoscopic submucosal dissection (ESD) for early gastric cancer or gastric premalignant lesions including adenoma and dysplasia are increasing among aspirin and/or clopidogrel users. Practically, aspirin or clopidogrel is recommended to be stopped for 5~14 days before EMR or ESD because bleeding risk during or after procedure. And it is recommended to restart of aspirin and/or clopidogrel as soon as possible if immediate bleeding during or after the procedure is not occurred in consideration of thromboembolic risk. However, early restarting of aspirin and/or clopidogrel raise the risk of delayed bleeding and the risk of complications associated with delayed ulcer healing. Although it is important to determine the timing of restarting aspirin and/or clopidogrel in consideration of complications of post-EMR/ESD ulcer and thromboembolic risk, there is no definite guideline about the timing of restarting aspirin and/or clopidogrel.

This study is aimed to determine the timing of restarting aspirin and/or clopidogrel for the patients having EMR or ESD among aspirin and/or clopidogrel users. The investigators planned to compare the delayed bleeding rate and ulcer healing rate in patients with post-EMR/ESD ulcer when take proton pump inhibitor (pantoprazole 40 mg per day) between the patients restarting aspirin and/or clopidogrel within 3~4 days after the procedure and the patients restarting aspirin and/or clopidogrel 2 weeks after the procedure during 4 weeks. The primary endpoint is delayed ulcer bleeding rate at 4 weeks after EMR/ESD. The secondary end point is ulcer healing rate within 4 weeks.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01621451
Study type Interventional
Source Asan Medical Center
Contact
Status Enrolling by invitation
Phase Phase 4
Start date June 2012
Completion date June 2014
View Details
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