• Tara R Earl, Nicole D Katapodis, Stephanie R Schneiderman, and Sarah J Shoemaker-Hunt.
• From the Abt Associates Inc, Rockville, Maryland.
• J Patient Saf. 2020 Sep 1; 16 (3S Suppl 1): S23-S35.

ObjectivesApproximately 98% of older Americans are simultaneously taking 5-or more-medications to manage at least 2 chronic conditions. Polypharmacy and the use of potentially inappropriate medications (PIMs) are a concern for older adults because they pose a risk for adverse drug events (ADEs), which are associated with emergency department visits and hospitalizations and are an important patient safety priority. We sought to review the evidence of patient safety practices aimed at reducing preventable ADEs in older adults, specifically (i) deprescribing interventions to reduce polypharmacy and (ii) use of the Screening Tool of Older Persons' Potentially Inappropriate Prescriptions (STOPP) to reduce PIMs.MethodsWe conducted a systematic review of literature published between 2008 and 2018 that studied examined the effect of these interventions to reduce preventable ADEs in older adults.ResultsTwenty-six studies and 1 systematic review were included (14 for deprescribing and 12 for STOPP and the systematic review). The deprescribing interventions involved decision support tools, educational interventions, and medication reviews by pharmacists and/or providers. Deprescribing studies primarily examined the effect of interventions on process outcomes and observed reductions in polypharmacy, often significantly. A few studies also examined clinical and economic outcomes. Studies of the use of the STOPP screening criteria most commonly reported changes in PIMs, as well as some economic outcomes.ConclusionsDeprescribing interventions and interventions using the STOPP criteria seem effective in reducing polypharmacy and PIMs in older adults, respectively. Future research on the effectiveness of these approaches on clinical outcomes, the comparative effectiveness of different multicomponent interventions using these approaches, and how to most effectively implement them to improve uptake and evidence-based care is needed.

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