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pone.0356480.t007 - Vera Logan (20671065) Alex Conboy (25073155) Neil Carter (845595) David Hughes (47111) Adam Turner (8983262) Alan Watkins (432126) Sue Jordan (432125) Medicine Biotechnology Immunology Cancer Science Policy Infectious Diseases patient using metformin p >&# 8220 one problem addressed comprising six practices benefit following referrals 82 %] vs participants &# 8217 randomized controlled trial randomised controlled trial practice medical records avoidable harm due adverse drug reaction intervention proved critical 27 vs 24 patients &# 8217 control arm patients intervention arm completed address clinical problems intervention arm patients study &# 8217 second adre profile trial arm &# 8211 clinical problems patients completed second profiles proved difficult practice pharmacist iatrogenic harm adverse effects two patients three patients 60 patients xlink "> west wales usual care term medicines symptoms recorded reducing risk random intercept process evaluation primary care prescribed medicines incomplete monitoring flecainide de confidence interval <div> IntroductionThe avoidable harm due to incomplete monitoring of repeat prescriptions in primary care has been known for decades, but prevention has proved difficult. We aimed to test the ability of the Adverse Drug Reaction (ADRe) Profile to identify and address clinical problems for patients aged ≥65 prescribed >4 long-term medicines, living in their own homes, and managed in primary care. MethodsA pragmatic cluster-randomized controlled trial was undertaken in 6 primary care practices in South-West Wales, alongside a process evaluation. In addition to usual care, patients in the intervention arm completed the ADRe Profile, which was then shared with the practice pharmacist. Patients completed a second ADRe Profile with the nurse researcher 20 weeks later. The control arm received usual care. Information on patients’ clinical problems and prescriptions was extracted from practice medical records before and after the intervention and analysed using multilevel generalised linear mixed models (GLMM), including practice as a random intercept, and accounting for trial arm, age, deprivation and co-morbidities. Symptoms recorded on the first and second Profiles were compared. Resolution of clinical problems was described, and participants’ perspectives sought. ResultsWe recruited one general practice group, comprising six practices, and 60 patients. Three patients were lost to the study. Intervention arm patients were more likely to have more than one problem addressed than control arm patients (22/27[82%] vs. 11/30[35%], adjusted odds ratio [aOR] 7.48, 95% confidence interval [CI] 1.99-28.10). All intervention arm patients either benefited or expected to benefit following referrals. For two patients, the intervention proved critical: detection of B12 deficiency in a patient using metformin and flecainide de-prescribing. Fewer patients reported pain by the study’s end (16/27 vs 24/27). All patients were grateful for ADRe, but clinicians had reservations concerning staff time. ConclusionThe ADRe Profile benefited patients by reducing risk of suboptimal prescribing and iatrogenic harm. The project is registered with the Clinicaltrials.gov as NCT04663360 (<a href="https://clinicaltrials.gov/study/NCT04663360" target="_blank">https://clinicaltrials.gov/study/NCT04663360</a>).</div> 2026-09-18T17:27:21Z Dataset Dataset 10.1371/journal.pone.0356480.t007 https://figshare.com/articles/dataset/pone_0356480_t007_-_p_p_/33937783 CC BY 4.0