When Should Low-dose Aspirin be Resumed After Peptic Ulcer Bleeding?

  • STATUS
    Recruiting
  • End date
    Feb 28, 2024
  • participants needed
    436
  • sponsor
    Chinese University of Hong Kong
Updated on 10 February 2022
aspirin
anticoagulants
haemostasis
peptic ulcer
bleeding ulcer

Summary

Acute upper gastrointestinal (GI) bleeding associated with the use of low-dose aspirin (ASA) is a major cause of peptic ulcer bleeding worldwide. Among survivors of acute myocardial infarction, a study of over 14,000 patients reported that the risk of life-threatening GI bleeding in the first two months is 7 times higher than that in the subsequent months. After endoscopic control of ulcer bleeding, most patients with cardiovascular (CV) diseases will need to resume ASA. However, the investigator found that immediate resumption of ASA saves life but at the expense of higher risk of recurrent bleeding. Peptic ulcer bleeding associated with ASA is a major cause of hospitalization in Hong Kong. Currently, ASA use has contributed to about one-third of the bleeding ulcers admitted to our hospital that serves a local population of 1.5 million. Accordingly, current international guidelines recommend early resumption of ASA but the optimal timing is unknown. Clinicians often face the dilemma: when should ASA be resumed? Furthermore, patients who suffer from acute peptic ulcer bleeding are often elderly patients with significant co-morbidities. Mortality in these patients remains high. Clinicians are facing an increasing number of patients who are on antiplatelet drugs or anticoagulants. The investigator proposes a open-label randomized-controlled trial to evaluate the optimal timing of resuming ASA in patients with CV diseases complicated by peptic ulcer bleeding. Patients will be randomized to resume the standard treatment within first few hours or only to resume the standard treatment 72 hours after endoscopic haemostasis.

Description

Acute upper gastrointestinal (GI) bleeding associated with the use of low-dose aspirin (ASA) is a major cause of peptic ulcer bleeding worldwide. Among survivors of acute myocardial infarction, a study of over 14,000 patients reported that the risk of life-threatening GI bleeding in the first two months is 7 times higher than that in the subsequent months (1). After endoscopic control of ulcer bleeding, most patients with cardiovascular (CV) diseases will need to resume ASA. Clinicians often face the dilemma: when should ASA be resumed? Furthermore, patients who suffer from acute peptic ulcer bleeding are often elderly patients with significant co-morbidities. Mortality in these patients remains high. Clinicians are facing an increasing number of patients who are on antiplatelet drugs or anticoagulants.

However, there are very limited data to guide the best timing for resumption of ASA in these high risk patients. To date, our group has conducted the only randomized controlled trial in the literature that has partially addressed this issue. Importantly, the investigator found that immediate resumption of ASA saves life but at the expense of higher risk of recurrent bleeding (2). Accordingly, current international guidelines recommend early resumption of ASA but the optimal timing is unknown.

In the setting of acute GI bleeding, it is often a dilemma whether to stop or to restart these drugs. The balance between bleeding and thrombotic risks is difficult and treatment is often empirical and not evidence-based.

The investigator aims to test the hypothesis that in ASA users complicated by peptic ulcer bleeding, withholding ASA till day 3 reduces the risk of recurrent bleeding compared to immediate resumption of ASA without a significant increase in mortality.

References

  1. Moukarbel GV, Signorovitch JE, Pfeffer MA et al. Gastrointestinal bleeding in high risk survivors of myocardial infarction: the VALIANT Trial. Eur Heart J 2009;30(18):2226-32.
  2. Sung JJ, Lau JY, Ching JY et al. Continuation of low-dose aspirin therapy in peptic ulcer bleeding: a randomized trial. Ann Intern Med 2010;152(1):1-9.

Details
Condition Aspirin, GastroIntestinal Bleeding
Treatment Resume Aspirin within 12 hours, Resume Aspirin 72 - 84 hours
Clinical Study IdentifierNCT03785015
SponsorChinese University of Hong Kong
Last Modified on10 February 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Age >18
Patients with actively bleeding gastroduodenal lesions (peptic ulcer, bleeding erosions, or Dieulafoy's lesion) or ulcers showing other high risk stigmata (visible blood vessels or adherent clots) treated by endoscopic therapy
Subjects continue to require regular ASA or dual anti-platelet therapy for treatment of CV or cerebrovascular diseases after this bleeding episode

Exclusion Criteria

Patients who received ASA for primary prophylaxis
Unsuccessful endoscopic hemostasis of bleeding ulcers or ulcer perforation
Gastric outlet obstruction
Known sensitivity to PPIs
Previous partial gastrectomy or vagotomy
Patients need concomitant anticoagulant
Pregnant unless sterilization, menopause or last menstrual period within 7 days
Other co-morbidities or advanced age that will hinder the drug compliance or follow up
Malignancy on active treatment
Unable to give consent
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