In this study, we will test the feasibility of N-of-1 trials for deprescribing beta-blockers in patients with Heart Failure with Preserved Ejection Fraction. To achieve this objective we will conduct 16 4-period N-of-1 trials (on vs. off) and subsequently interview participants to better understand feasibility and pragmatism. The N-of-1 trials will be iteratively refined in real-time based on this feedback.
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Features of a Feasible and Pragmatic Protocol for Deprescribing N-of-1 Trials in Patients With Heart Failure With Preserved Ejection Fraction, as Measured by Qualitative Interview
Timeframe: Baseline
Features of a Feasible and Pragmatic Protocol for Deprescribing N-of-1 Trials in Patients With Heart Failure With Preserved Ejection Fraction, as Measured by Qualitative Interview
Timeframe: The maximum amount of time a subject could have been assessed for this outcome measure is 6 times across 36 weeks. This outcome was measured at each end of period visit (weeks 6, 12, 18, 24, 30) and at the end of intervention (weeks 12, 18, 24, 30, or 36)