ReAl-life multIceNter Outcomes Registry for Better antithrOmbotic Strategies in Patients With AF (RAINBOW-AF)

Study Overview
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Brief Summary
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Anticoagulation therapy is the most important part of the treatment strategy for atrial fibrillation. Previous studies have confirmed that both warfarin and new oral anticoagulants can effectively prevent stroke in patients with atrial fibrillation. However, the current situation of anticoagulation in atrial fibrillation is not optimistic. This project aims to explore the prevalence of inappropriate doses of anticoagulants in my country. , and the influencing factors related to such doses. By analyzing the status quo, characteristics and influencing factors, suggestions and management plans to promote rational use are put forward to provide certain guidance and help for anticoagulation therapy in patients with atrial fibrillation.

Detailed Description
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The project is carried out in 30 research centers across the country, and the research object is the prescription/medical order data of real-world atrial fibrillation patients (outpatient and inpatient), including clinical diagnosis, drug use, outpatient and emergency and inpatient records, medical records, as well as laboratory tests, Demographic and other aspects of information, a total of 5000 patients were included, and it is expected to be completed within 3 years. The analysis indicators include patient population distribution, comorbid diseases, concomitant drugs, creatinine clearance rate, proportion of various drugs used, CHA2DS2-VASc score and embolism risk, HAS-BLED score, antithrombotic therapy, etc., to evaluate the influencing factors of inappropriate anticoagulation dose, and to explore the macro trend of anticoagulation therapy.

Official Title
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ReAl-life multIceNter Outcomes Registry for Better antithrOmbotic Strategies in Patients With AF (RAINBOW-AF)

Conditions
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Atrial Fibrillation, Anticoagulant Therapy

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients with incident (initial diagnosis) AF (Atrial Fibrillation) with electrocardiographic documentation or patients with prevalent (existing diagnosis) AF who had initiation or transition to a NOAC Anticipated ability to adhere to local regularly scheduled follow-up visits Exclusion Criteria: Atrial flutter only Anticipated life expectancy less than 6 months Atrial fibrillation caused by reversible factors, such as hyperthyroidism, acute myocardial infarction, acute pulmonary embolism, etc. Active bleeding, such as intracranial hemorrhage, gastrointestinal bleeding, etc. Patients with deep vein thrombosis, pulmonary embolism, artificial hip/knee replacement and other anticoagulation indications Participation in a randomized trial of anticoagulation for AF at the time of enrollment
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Prevalence of potentially inappropriate NOAC prescriptions | We will adopt an adaptive design to involve for summary of products characteristics, and perform appropriateness assessments of prevalent NOAC strategies based on indications, NOAC selection, or dosages according to reference materials from approved NMPA labeling recommendations for each agent and 2021 European Heart Rhythm Association (EHRA) Practical Guide on the Use of NOACs in AF Patients. | 3 years | 
| Patient profiles with NOAC prescriptions | Identify the characteristics of participants who were given appropriate NOAC prescriptions and those who did not from various perspectives: demographics, clinical, medical management, prescription information, therapy, regional differences, types of treating physicians, and NOACs availability. | 3 years | 
| Number of major bleeding events | Major bleeding will be defined according to International Society of Thrombosis and Hemostasis (ISTH) criteria. | 3 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Adverse events | Detailed data on management of NOAC-related adverse events will be collected. | 3 years |