Nudging for Anticoagulation Adherence in Atrial Fibrillation

Sponsor
Sun Yat-sen University
Study ID
NCT07543393
Status
Not Yet Recruiting

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Conditions

  • Atrial Fibrillation (AF)

Eligibility Criteria

Sex
ALL
Age
18 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • Nudge Intervention — BEHAVIORAL
    Participants receive a multi-component nudge intervention including: an educational video on atrial fibrillation and stroke prevention; a personalized action plan linking pill-taking to a daily routine; a paper medication calendar with check-off grid and visual cues; tapered SMS reminders (weekly frequency declines from 3 to 1 over 8 weeks); weekly feedback messages; and a mid-point telephone call at week 4.

Study Details

The goal of this clinical trial is to learn if a nudging intervention (using text message reminders, a medication calendar, and action planning) can help people with atrial fibrillation take their blood-thinning medication (anticoagulants) as prescribed. The main questions it aims to answer are: Does the nudging intervention improve medication adherence compared to usual care? How does the intervention affect patients' beliefs about their medication and the automaticity of pill-taking? Is the intervention cost-effective? Researchers will compare participants who receive the nudging intervention with those who receive usual care. Participants will: Watch a short educational video about atrial fibrillation and stroke prevention Make a personal plan to take their medication at the same time each day (for example, after breakfast) Receive text message reminders 1 to 3 times per week, with fewer messages over time Get a medication calendar to track daily doses Answer a few questionnaires at the start, at 8 weeks, and at 12 weeks

Key Dates

First listed
Apr 21, 2026
Start date
Jun 30, 2026
Status verified
Jun 2026
Primary completion
Feb 20, 2027
Completion
Feb 20, 2027

Study Design

Enrollment
84 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE

Arms

  • Experimental: Nudge Intervention
    Participants receive a multi-component nudge intervention including: an educational video on atrial fibrillation and stroke prevention; a personalized action plan linking pill-taking to a daily routine (e.g., after breakfast); a paper medication calendar with check-off grid and visual cues; tapered SMS reminders (3 times/week for weeks 1-3, 2 times/week for weeks 4-6, 1 time/week for weeks 7-8); weekly feedback messages on Sundays; and a mid-point telephone call at week 4 to address barriers and adjust the plan.
  • No Intervention: Usual Care
    Participants receive usual care as routinely provided by the cardiology clinic, including standard discharge education and regular follow-up visits. No additional adherence support is given during the study period. After the study is completed, participants in this arm will be offered the same medication calendar and text message templates as the intervention group.

Primary Outcome Measure

Medication Adherence measured by the Medication Adherence Estimation and Differentiation Scale (MEDS) [ Time Frame: Baseline (week 0), end of intervention (week 8), and follow-up (week 12) ]

Central Contacts

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