Prospective randomised trial examining the impact of an educational intervention versus usual care on anticoagulation therapy control based on an SAMe-TT2R2 score-guided strategy in anticoagulant-naïve Thai patients with atrial fibrillation (TREATS-AF): a study protocol

TREATS-AF Study Group, Arintaya Phrommintikul, Surakit Nathisuwan, Siriluck Gunaparn, Rungroj Krittayaphong, Wanwarang Wongcharoen, Sukhi Sehmi, Samir Mehta, Neil Winkles, Peter Brocklehurst, Jonathan Mathers, Sue Jowett, Kate Jolly, Deirdre Lane, G Neil Thomas, Gregory Y H Lip

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Abstract

INTRODUCTION: The burden of atrial fibrillation (AF) in Thailand is high and associated with increased morbidity, mortality and healthcare costs. Vitamin K antagonists (eg, warfarin), commonly used for stroke prevention in patients with AF in Thailand, are effective but are often suboptimally controlled. We aim to evaluate the impact of an SAMe-TT2R2 score-guided strategy and educational intervention compared to usual care on anticoagulation control expressed by the time in therapeutic range (TTR) at 12 months, in anticoagulant-naïve Thai patients with AF.

METHODS AND ANALYSIS: Multicentre, open-label, parallel-group, randomised controlled trial conducted in Thailand among adult patients (age: 18 years) with AF who are anticoagulant naïve. Patients will be randomised to one of two groups; an SAMe-TT2R2 score-guided strategy with educational intervention and usual care versus usual care alone. The planned follow-up period is 12 months. The primary outcome is TTR at 12 months. Secondary outcomes include: (1) TTR at 6 months; (2) thromboembolic and bleeding events at 12 months; (3) composite major adverse cardiovascular events at 12 months; (4) change in patients' knowledge of AF between baseline and 6 months and 12 months; (5) cost effectiveness; (6) quality of life at baseline, 6 months and 12 months using EQ-5D-5L (Thai version) and (7) patient satisfaction/perceptions of the TREAT intervention. An embedded qualitative study will assess patient perceptions of the TREAT intervention.

ETHICS AND DISSEMINATION: The study has been approved by the Ethical Review Committee, Ministry of Public Health of Thailand, and registered in the Thai Clinical Trials Registry. The results of this trial will be submitted for publication in a peer-reviewed journal. Participants will be informed via a link to a preview of the publication. A lay summary will also be provided to all participants prior to publication.

TRIAL REGISTRATION NUMBER: TCTR20180711003.

Original languageEnglish
Article numbere051987
Number of pages9
JournalBMJ open
Volume11
Issue number10
DOIs
Publication statusPublished - 11 Oct 2021

Bibliographical note

Funding Information:
Funding This study is supported by the Newton Fund through the collaboration of the Medical Research Council, the UK (grant reference number: MR/R020892/1) and the Thailand Research Fund, Thailand (grant reference number: DBG6180009).

Publisher Copyright:
© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY. Published by BMJ.

Keywords

  • Adolescent
  • Adult
  • Anticoagulants/therapeutic use
  • Atrial Fibrillation/complications
  • Humans
  • Prospective Studies
  • Quality of Life
  • Randomized Controlled Trials as Topic
  • Stroke/prevention & control
  • Thailand
  • Treatment Outcome
  • cardiology
  • qualitative research
  • health economics

ASJC Scopus subject areas

  • General Medicine

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