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Randomized Controlled Trial
Patient-tailored interventions to improve specialty medication adherence: results from a prospective randomized controlled trial.
- Amanda M Kibbons, Ryan Moore, Leena Choi, and Autumn D Zuckerman.
- Vanderbilt University Medical Center, Nashville, United States. Electronic address: Amanda.m.kibbons@vumc.org.
- Am. J. Med. 2023 Jul 1; 136 (7): 694701.e1694-701.e1.
BackgroundSpecialty medication nonadherence results in poor clinical outcomes and increased costs. This study evaluated the impact of patient-tailored interventions on specialty medication adherence.MethodsA pragmatic, randomized controlled trial was conducted at a single-center health-system specialty pharmacy from May 2019 to August 2021. Participants included recently nonadherent patients prescribed self-administered specialty medications from multiple specialty clinics. Eligible patients were stratified by historical clinic rates of nonadherence and randomized 1:1 to usual care or intervention arms. Intervention patients received patient-tailored interventions and 8 months of follow-up. A Wilcoxon test was used to analyze the difference in 6-, 8-, and 12-month post-enrollment adherence, calculated using proportion of days covered, between the intervention and usual care arms.ResultsFour hundred and thirty eight patients were randomized. Baseline characteristics were similar between groups: mostly women (68%), white (82%), with a median age of 54 years (interquartile range, 40, 64). The most common reasons for nonadherence in the intervention arm were memory (37%) and unreachability (28%). There was a significant difference in median proportion of days covered between patients in the usual care and intervention arms at 8-months (0.88 vs 0.94, P < .001), 6-months (0.90 vs 0.95, P = .003), and 12-months post-enrollment (0.87 vs 0.93, P < .001).ConclusionsPatient-tailored interventions resulted in significant specialty medication adherence improvement compared with standard of care. Specialty pharmacies should consider targeting nonadherent patients for adherence interventions.Copyright © 2023 Elsevier Inc. All rights reserved.
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