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

The Chinese University of Hong Kong

Status: Unknown

Conditions: GastroIntestinal Bleeding; Aspirin

Treatments: Other: Resume Aspirin 72 - 84 hours; Other: Resume Aspirin within 12 hours

Study type: Interventional

Funder types: Other

Identifiers

NCT03785015

ReASA

Details and patient eligibility

About

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.

Full 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.

Enrollment: 436 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Age >18
2. 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
3. Subjects continue to require regular ASA or dual anti-platelet therapy for treatment of CV or cerebrovascular diseases after this bleeding episode

Exclusion criteria

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

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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436 participants in 2 patient groups

Withold aspirin till after endoscopic haemostasis

Experimental group

Description:

Withhold the standard treatment of aspirin within 12 hours after endoscopic haemostasis.

Treatment:

Other: Resume Aspirin within 12 hours

Withold aspirin till 72 hours

Active Comparator group

Description:

Withhold the standard treatment of aspirin till 72 after endoscopic haemostasis.

Treatment:

Other: Resume Aspirin 72 - 84 hours