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Non-warfarin Oral AntiCoagulant Resumption After Gastrointestinal Bleeding in Atrial Fibrillation Patients
Current clinical society guidelines and statements are non-specific and relatively open-ended regarding the optimal timing to restart non-warfarin oral anticoagulant (NOAC) after gastrointestinal bleeding (GIB) in patients with atrial fibrillation (AF) who require the prophylactic medication for stroke prevention. These patients are at increased risk for devastating future thromboembolic events including stroke if NOAC is not resumed promptly, whilst premature resumption of anticoagulants can result in recurrent GIB, haemorrhage, anaemia, myocardial ischaemia and infarction in those with ischaemic heart disease, and even death. However, the question as to how early a NOAC can be safely restarted after acute GIB has not been previously answered, and there remains an important knowledge gap.
Study details:
The effectiveness and relative safety of NOACs have been demonstrated in large international studies where reductions in the incidence of stroke in patients with AF have been reported. However, the benefits of an anticoagulant are offset by increased incident rates of bleeding including gastrointestinal bleeding (GIB) and, less commonly, intracranial bleeding, warranting careful anticoagulation management during periods when patients are susceptible to the risks for bleeding, stroke and thromboembolism. The exact duration for withholding NOAC after acute GIB is unknown and in general, current clinical society guidelines and statements are non-specific and relatively open-ended regarding the optimal timing to restart non-warfarin oral anticoagulant (NOAC) after gastrointestinal bleeding (GIB) in patients with atrial fibrillation (AF) who require the prophylactic medication for stroke prevention.
These patients are at increased risk for devastating future thromboembolic events including stroke if NOAC is not resumed, whilst premature resumption of anticoagulants can result in recurrent GIB, haemorrhage, anaemia, myocardial ischaemia and infarction in those with ischaemic heart disease, and even death. The purpose of this study is to determine if restarting NOAC very early after endoscopic haemostasis of bleeding peptic ulcer lesions is equivalent to early resumption in AF patients in terms of safety and efficacy for prevention of recurrent bleeding freedom from GIB recurrence, while maintaining undiminished benefits in reducing incident rates of systemic thromboembolism.
Eligibility criteria
Researchers look for people who fit a certain description, called eligibility criteria. See if you qualify.
Inclusion criteria
Exclusion criteria
Eligibility
Age eligible for study : 18 and older
Healthy volunteers accepted : No
Gender eligible for study: All
Things to know
Study dates
Study start: 2019-03-11
Primary completion: 2024-06-30
Study completion finish: 2025-12-30
Study type
PREVENTION
Phase
NA
Trial ID
NCT03785080
Intervention or treatment
OTHER: restart NOAC very early
OTHER: restart NOAC early
Conditions
- • Upper Gastrointestinal Bleeding
Find a site
Closest Location:
Blacktown Hospital
Research sites nearby
Select from list below to view details:
Blacktown Hospital
Blacktown, New South Wales, Australia
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Participant Group/Arm | Intervention/Treatment |
---|---|
EXPERIMENTAL: restart NOAC very early
| OTHER: restart NOAC very early
|
ACTIVE_COMPARATOR: restart NOAC early
| OTHER: restart NOAC early
|
What is the study measuring?
Primary outcome
Primary Outcome Measure | Primary Outcome Description | Primary Outcome Time Frame |
---|---|---|
recurrent gastrointestinal bleeding | melaena and/or haematemesis with drop in Hb \>2g/dL and confirmation of bleeding by endoscopy. | 30 days |
Secondary outcome
Secondary Outcome Measure | Secondary Outcome Description | Secondary Outcome Time Frame |
---|---|---|
recurrent gastrointestinal bleeding | melaena and/or haematemesis with drop in Hb \>2g/dL and confirmation of bleeding by endoscopy. | 90 days |
Ischemic stroke or transient ischaemic attack | an acute episode of neurologic deficit of presumed vascular or cardioembolic origin; its presence will be confirmed by a member of the neurology service | 30 days |
Systemic thromboembolism | any clinical and/or radiographic acute stroke and/or an acute peripheral arterial thromboembolic event including acute limb ischaemia, coronary embolism and arterial thromboembolism | 30 days |
Death | All-cause mortality | 6 months |
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