Barriers and Enablers for Deprescribing Glucose-Lowering Treatment in Older Adults: A Systematic Review

Marion Mellot, Lina Jawal, Thomas Morel,Jean-Pascal Fournier, Florence Tubach, Jean-Sebastien Cadwallader,Antoine Christiaens,Lorene Zerah

JOURNAL OF THE AMERICAN MEDICAL DIRECTORS ASSOCIATION(2024)

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Abstract
Objectives: Overtreatment with glucose-lowering treatment (GLT) is frequent and a source of high morbidity and mortality in older adults with type 2 diabetes mellitus (T2DM). This study aimed to identify and synthesize barriers and enablers for deprescribing GLT in older adults (>= 65 years) with T2DM. Design: Systematic review of qualitative and mixed-methods studies. Setting and Participants: Older adults with T2DM, any participants [patients, health care providers (HCPs), caregivers], any settings. Methods: Two researchers (and a referred third researcher at all stages) independently screened original articles reporting qualitative and mixed-methods studies exploring barriers and enablers for deprescribing GLT in older adults published during 2010-2023, identified from MEDLINE, Embase, CINAHL, and gray literature. Quality of the included studies was assessed with the Mixed-Methods Appraisal Tool. Verbatim statements on barriers and enablers were extracted, and determinants of behaviors were identified with the Theoretical Domains Framework (TDF) version 2, and related intervention functions (targets for future interventions) were proposed according to the Behavior Change Wheel (BCW). Results: We identified only 4 studies from 2 countries (United States and the Netherlands), all recently published (2019-2023), that primarily reported barriers to GLT deprescribing from interviews or focus groups of patients or HCPs practicing outpatient medicine. Knowledge, fear, poor communication, inertia, and trust with HCPs were the main determinants of behaviors that influenced deprescribing, and education, training, persuasion and environmental restructuring were the main intervention functions for proposing future interventions. Studies did not cover financial aspects, physician characteristics, or caregiver and family viewpoints. Conclusions and Implications: The use of a behavioral theory and a validated implementation framework provided a comprehensive approach to identifying barriers and enablers for deprescribing GLT in older adults (>= 65 years) with T2DM. The behavioral determinants identified may be useful in tailoring interventions to improve the implementation of GLT deprescribing in older adults in ambulatory settings. (c) 2023 AMDA - The Society for Post-Acute and Long-Term Care Medicine.
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Key words
Behavior,deprescription,geriatrics,hypoglycemic agents,qualitative research
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