• Jesús Martínez-Sotelo, Manuel Pinteño-Blanco, Rosario García-Ramos, and María Isabel Cadavid-Torres.
• Servicio de Farmacia. Hospital Comarcal de Inca, Inca, España. Electronic address: jesus.martinezs@hcin.es.
• Aten Primaria. 2021 Dec 1; 53 (10): 102124.

ObjectivesTo assess the effectiveness of a pharmacist-led systematic review of medications on: potentially inappropriate medications (PIM), health outcomes and costs.DesignProspective, open, controlled and cluster-randomized clinical trial.SettingSix primary care clinics from Balearic Islands.ParticipantsForty-two clusters (21 per group), and 549 patients aged ≥65 years and ≥5 chronic medications were included; of which 277 were allocated to Intervention Group (IG) and 272 to Control Group (CG). Patients were excluded if they were: institutionalized, temporarily displaced, routinely monitored under private healthcare, or home care.InterventionPIM detection by the pharmacist using a combination of explicit and implicit methods; and communication of the most appropriate therapeutic strategies to the physician.MeasurementsProportion of patients with PIM and mean number of PIM/patient (main outcomes); and morbidity, mortality, and costs (secondary outcomes) were assessed.Statistical PlanFollowing an intention-to-treat approach, quantitative and qualitative outcomes variables were compared by T-Student and Chi-square tests, respectively. Results were providing as difference in proportions for qualitative outcomes and difference in means for quantitative outcomes with respective 95% confidence intervals (95% CI).ResultsAfter intervention, proportion of patients with PIM decreased by 13.7% (95% CI: 9.3; 18.2) more in IG than CG. Mean number of PIM/patient and mean cost of PIM/patient decreased by 0.43 (95% CI: 0.32; 0.54) and 72.11€ (95% CI: 26.15; 118.06) more in IG than CG, respectively. However, no statistically significant differences were observed in morbidity, mortality or costs of healthcare resources.ConclusionsPIM detection and recommendations provided by pharmacist could contribute to reduce significantly PIM and drug expenditure; but without reaching statistically significant differences in morbidity, mortality, and healthcare resources costs.Copyright © 2021 The Author(s). Publicado por Elsevier España, S.L.U. All rights reserved.

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