Interventions to Reduce Adverse Drug Event-Related Outcomes in Older Adults: A Systematic Review and Meta-analysis

The impact of long-term care interventions on healthcare utilisation among older persons: a scoping review of reviews

BACKGROUND

As the ageing population grows, the demand for long-term care (LTC) services will rise, concurrently amplifying healthcare utilisation. This review aims to examine and consolidate information on LTC interventions that influence healthcare utilisation among older persons.

METHODS

A scoping review was performed through a systematic search in PubMed, EBSCO CINAHL, EBM Reviews - Cochrane Database of Systematic Reviews, Embase, APA PsycInfo, EBM Reviews - Health Technology Assessment, and EBM Reviews - NHS Economic Evaluation Database. Systematic reviews with meta-analyses published between 1 January 2010 and 2 June 2022 among older persons aged 60 and above were included. The characteristics of LTC interventions were mapped to the World Health Organization (WHO) Healthy Ageing Framework. The effect sizes of healthcare utilisations for LTC interventions were recalculated using a random-effects model. The methodological quality was assessed with the AMSTAR-2 checklist, while the quality of evidence for each association was evaluated using GRADE.

RESULTS

Thirty-seven meta-analyses were included. The most prominent domain of the healthy ageing framework was managing chronic conditions. One hundred twelve associations between various LTC interventions and healthcare utilisations were identified, with 22 associations impacting healthcare utilisation. Four interventions were supported by suggestive or convincing evidence. Preventive home visits were found to reduce hospital admission (OR: 0.73, 95% CI: 0.59, 0.91, p = 0.005), caregiver integration during discharge planning (OR: 0.68, 95% CI: 0.57, 0.81, p < 0.001), and continuity of care (OR: 0.76, 95% CI: 0.61, 0.95, p = 0.018) reduced hospital readmission, and perioperative geriatric interventions reduced the length of hospital stay (MD: -1.50, 95% CI: -2.24, -0.76, p < 0.001). None of the associations impacted emergency department visits, medication use, and primary care utilisations with convincing evidence. Most reviews received low methodological quality.

CONCLUSION

The findings suggest that LTC interventions could benefit from transitioning to a community-based setting involving a multidisciplinary team, including carers. The spectrum of services should incorporate a comprehensive assessment to ensure continuous care.

Digital Medication Management in Polypharmacy

BACKGROUND

Inappropriate drug prescriptions for patients with polypharmacy can have avoidable adverse consequences. We studied the effects of a clinical decision-support system (CDSS) for medication management on hospitalizations and mortality.

METHODS

This stepped-wedge, cluster-randomized, controlled trial involved an open cohort of adult patients with polypharmacy in primary care practices (=clusters) in Westphalia-Lippe, Germany. During the period of the intervention, their medication lists were checked annually using the CDSS. The CDSS warns against inappropriate prescriptions on the basis of patient-related health insurance data. The combined primary endpoint consisted of overall mortality and hospitalization for any reason. The secondary endpoints were mortality, hospitalizations, and high-risk prescription. We analyzed the quarterly health insurance data of the intention- to-treat population with a mixed logistic model taking account of clustering and repeated measurements. Sensitivity analyses addressed effects of the COVID-19 pandemic and other effects.

RESULTS

688 primary care practices were randomized, and data were obtained on 42 700 patients over 391 994 quarter years. No significant reduction was found in either the primary endpoint (odds ratio [OR] 1.00; 95% confidence interval [0.95; 1.04]; p = 0.8716) or the secondary endpoints (hospitalizations: OR 1.00 [0.95; 1.05]; mortality: OR 1.04 [0.92; 1.17]; high-risk prescription: OR 0.98 [0.92; 1.04]).

CONCLUSION

The planned analyses did not reveal any significant effect of the intervention. Pandemicadjusted analyses yielded evidence that the mortality of adult patients with polypharmacy might potentially be lowered by the CDSS. Controlled trials with appropriate follow-up are needed to prove that a CDSS has significant effects on mortality in patients with polypharmacy.

Contexts and mechanisms relevant to General Practitioner (GP) based interventions to reduce adverse drug events (ADE) in community dwelling older adults: a rapid realist review

Background

Older adults in Ireland are at increased risk of adverse drug events (ADE) due, in part, to increasing rates of polypharmacy. Interventions to reduce ADE in community dwelling older adults (CDOA) have had limited success, therefore, new approaches are required.A realist review uses a different lens to examine why and how interventions were supposed to work rather than if, they worked. A rapid realist review (RRR) is a more focused and accelerated version.The aim of this RRR is to identify and examine the contexts and mechanisms that play a role in the outcomes relevant to reducing ADE in CDOA in the GP setting that could inform the development of interventions in Ireland.

Methods

Six candidate theories (CT) were developed, based on knowledge of the field and recent literature, in relation to how interventions are expected to work. These formed the search strategy. Eighty full texts from 633 abstracts were reviewed, of which 27 were included. Snowballing added a further five articles, relevant policy documents increased the total number to 45. Data were extracted relevant to the theories under iteratively developed sub-themes using NVivo software.

Results

Of the six theories, three theories, relating to GP engagement in interventions, relevance of health policy documents for older adults, and shared decision-making, provided data to guide future interventions to reduce ADEs for CDOA in an Irish setting. There was insufficient data for two theories, a third was rejected as existing barriers in the Irish setting made it impractical to use.

Conclusions

To improve the success of Irish GP based interventions to reduce ADEs for CDOA, interventions must be relevant and easily applied in practice, supported by national policy and be adequately resourced. Future research is required to test our theories within a newly developed intervention.

Systematic Review and Meta-analysis of Interventions to Reduce Adverse Drug Reactions in Older Adults: An Update

BACKGROUND

We previously reported that interventions to optimize medication use reduced adverse drug reactions (ADRs) by 21% and serious ADRs by 36% in older adults. With new evidence, we sought to update the systematic review and meta-analysis.

METHOD

We searched OVID, Cochrane Library, ClinicalTrials.gov and Google Scholar from 30 April 2017-30 April 2023. Included studies had to be randomized controlled trials of older adults (mean age ≥65 years) taking medications that examined the outcome of ADRs. Two authors independently reviewed all citations, extracted relevant data, and assessed studies for potential bias. The outcomes were any and serious ADRs. We performed subgroup analyses by intervention type and setting. Random-effects models were used to combine the results from multiple studies and create summary estimates.

RESULTS

Six studies are new to the update, resulting in 19 total studies (15,675 participants). Interventions were pharmacist-led (10 studies), other healthcare professional-led (5 studies), technology based (3 studies), and educational (1 study). The interventions were implemented in various clinical settings, including hospitals, outpatient clinics, long-term care facilities/rehabilitation wards, and community pharmacies. In the pooled analysis, the intervention group participants were 19% less likely to experience an ADR (odds ratio [OR] 0.81, 95% confidence interval [CI] 0.68-0.96) and 32% less likely to experience a serious ADR (OR 0.68, 95% CI 0.48-0.96). We also found that pharmacist-led interventions reduced the risk of any ADR by 35%, compared with 8% for other types of interventions.

CONCLUSION

Interventions significantly and substantially reduced the risk of ADRs and serious ADRs in older adults. Future research should examine whether effectiveness of interventions vary across health care settings to identify those most likely to benefit. Implementation of successful interventions in health care systems may improve medication safety in older patients.

Costs associated with adverse drug reactions in an older population admitted to hospital: a prospective cohort study

PURPOSE

This study examines healthcare costs associated with adverse drug reactions (ADR) in an older population admitted acutely to an Irish tertiary hospital.

METHODS

Prospective cohort study involving older persons admitted to hospital with and without an ADR. Data was collected at baseline, during hospitalisation and post-discharge. Participants provided information on healthcare resource use three months before admission (baseline) and three months after discharge (follow-up). For each healthcare resource, unit costs were derived and applied. The average cost (standard deviation (SD)) associated with the hospital admission for the ADR and non-ADR are presented. In addition, baseline and follow-up care costs were compared using difference-in-difference analysis and presented with 95% confidence intervals (CI). Costs by preventability and severity of ADR are also presented.

RESULTS

A total of n = 230 participants were included (n = 93 ADR and n = 137 without ADR). The average cost associated with hospital admission for an ADR was €9538 (SD €10442) and €9828 (SD €11770) for non-ADR. The additional follow-up costs (difference-in-difference) associated with the ADR was estimated at €2047 (95% CI: -€889 to €4983). The mean incremental follow-up cost of definite preventable ADRs was estimated at €1648 (95% CI: -€4310 to €7605), possible preventable ADRs €2259 (95 CI: -€1194 to €5712) and unavoidable ADRs €1757 (95% CI: -€3377 to €6890). The mean incremental follow-up cost associated with moderate severe ADRs was estimated at €1922 (95% CI: -€1088 to €4932) and €3580 (95% CI: -€4898 to €12,058) for severe ADRs.  CONCLUSION: ADRs leading to hospital admission are associated with modest incremental healthcare costs during and three months after admission. Severe and possibly preventable ADRs were associated with higher costs.

The impact of hospital-based post-discharge pharmacist medication review on patient clinical outcomes: A systematic review

Background

Clinical pharmacists have been shown to identify and resolve medication related problems post-discharge, however the impact on patient clinical outcomes is unclear.

Aims

To undertake a systematic review to identify, critically appraise and present the evidence on post-discharge hospital clinics that provide clinical pharmacist medication review; report the patient clinical outcomes measured; and describe the activities of the clinical pharmacist.

Methods

Published studies evaluating a patient clinical outcome following a post-discharge hospital clinic pharmacy service were included. All studies needed a comparative design (intervention vs control or comparator). Pubmed, Embase, CINAHL, PsycnINFO, Web of Science, IPA and APAIS-Health databases were searched to identify studies. The type of clinic and the clinical pharmacist activities were linked to patient clinical outcomes.

Results

Fifty-seven studies were included in the final analysis, 14 randomised controlled trials and 43 non-randomised studies. Three key clinic types were identified: post-discharge pharmacist review alone, inpatient care plus post-discharge review and post-discharge collaborative clinics. The three main outcome metrics identified were hospital readmission and/or representation, adverse events and improved disease state metrics. There was often a mix of these outcomes reported as primary and secondary outcomes. High heterogeneity of interventions and clinical pharmacist activities reported meant it was difficult to link clinical pharmacist activities with the outcomes reported.

Conclusions

A post-discharge clinic pharmacist may improve patient clinical outcomes such as hospital readmission and representation rates. Future research needs to provide a clearer description of the clinical pharmacist activities provided in both arms of comparative studies.

A rapid review of interventions to improve medicine self-management for older people living at home

BACKGROUND

As people age, they are more likely to develop multiple long-term conditions that require complicated medicine regimens. Safely self-managing multiple medicines at home is challenging and how older people can be better supported to do so has not been fully explored.

AIM

This study aimed to identify interventions to improve medicine self-management for older people living at home and the aspects of medicine self-management that they address.

DESIGN

A rapid review was undertaken of publications up to April 2022. Eight databases were searched. Inclusion criteria were as follows: interventions aimed at people 65 years of age or older and their informal carers, living at home. Interventions needed to include at least one component of medicine self-management. Study protocols, conference papers, literature reviews and articles not in the English language were not included. The results from the review were reported through narrative synthesis, underpinned by the Resilient Healthcare theory.

RESULTS

Database searches returned 14,353 results. One hundred and sixty-seven articles were individually appraised (full-text screening) and 33 were included in the review. The majority of interventions identified were educational. In most cases, they aimed to improve older people's adherence and increase their knowledge of medicines. Only very few interventions addressed potential issues with medicine supply. Only a minority of interventions specifically targeted older people with either polypharmacy, multimorbidities or frailty.

CONCLUSION

To date, the emphasis in supporting older people to manage their medicines has been on the ability to adhere to medicine regimens. Most interventions identify and target deficiencies within the patient, rather than preparing patients for problems inherent in the medicine management system. Medicine self-management requires a much wider range of skills than taking medicines as prescribed. Interventions supporting older people to anticipate and respond to problems with their medicines may reduce the risk of harm associated with polypharmacy and may contribute to increased resilience in the system.

PATIENT OR PUBLIC CONTRIBUTION

A patient with lived experience of medicine self-management in older age contributed towards shaping the research question as well as the inclusion and exclusion criteria for this review. She is also the coauthor of this article. A patient advisory group oversaw the study.

Detection tools for prediction and identification of adverse drug reactions in older patients: a systematic review and meta-analysis

Tools to accurately predict and detect adverse drug reactions (ADR) in elderly patients have not been developed. We aimed to identify and evaluate reports on tools that predict and detect ADR in elderly patients (≥ 60 years). In this review, we followed the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. Databases were searched until January 2022 using key terms “elderly,” “adverse drug reaction,” and “detection instruments.” Eighteen studies met the inclusion criteria, and they examined assorted interventions: STOPP/START version 1/2 (n = 10), Beers Criteria 2012 or 2015 (n = 4), Systematic Tool to Reduce Inappropriate Prescribing (STRIP) (n = 2), Tool to Reduce Inappropriate Medications (TRIM) (n = 1), Medication Risk Score (MERIS) (n = 1), Computerized alert systems (n = 1), and Norwegian General Practice-Nursing Home criteria (n = 1). The interventions affected the number of potential prescription omissions (OR, 0.50 [0.37–0.69]; p < 0.0001; four studies). No apparent reduction in the number of drug interactions within 2 months (OR, 0.84 [0.70–1.02]; p = 0.08; two studies) and mortality (OR, 0.92 [0.76–1.12]; p = 0.41; three studies) was observed. In conclusion, there is no definitive and validated assessment tool for detecting and predicting ADR in elderly patients. Thus, more research on refining existing tools or developing new ones is warranted.

Contexts and mechanisms relevant to General Practitioner (GP) based interventions to reduce adverse drug events (ADE) in community dwelling older adults: a rapid realist review

Background: Older adults in Ireland are at increased risk of adverse drug events (ADE) due, in part, to increasing rates of polypharmacy. Interventions to reduce ADE in community dwelling older adults (CDOA) have had limited success, therefore, new approaches are required. A realist review uses a different lens to examine why and how interventions were supposed to work rather than if, they worked. A rapid realist review (RRR) is a more focused and accelerated version. The aim of this RRR is to identify and examine the contexts and mechanisms that play a role in the outcomes relevant to reducing ADE in CDOA in the GP setting that could inform the development of interventions in Ireland. Methods: Six candidate theories (CT) were developed, based on knowledge of the field and recent literature, in relation to how interventions are expected to work. These formed the search strategy. Eighty full texts from 633 abstracts were reviewed, of which 27 were included. Snowballing added a further five articles, relevant policy documents increased the total number to 45. Data were extracted relevant to the theories under iteratively developed sub-themes using NVivo software. Results: Of the six theories, three theories, relating to GP engagement in interventions, relevance of health policy documents for older adults, and shared decision-making, provided data to guide future interventions to reduce ADEs for CDOA in an Irish setting. There was insufficient data for two theories, a third was rejected as existing barriers in the Irish setting made it impractical to use. Conclusions: To improve the success of Irish GP based interventions to reduce ADEs for CDOA, interventions must be relevant and easily applied in practice, supported by national policy and be adequately resourced. Future research is required to test our theories within a newly developed intervention.

A multi-centre cohort study on healthcare use due to medication-related harm: the role of frailty and polypharmacy

OBJECTIVES

To determine the association between frailty and medication-related harm requiring healthcare utilisation.

DESIGN

Prospective observational cohort study.

SETTING

Six primary and five secondary care sites across South East England, September 2013-November 2015.

PARTICIPANTS

One thousand and two hundred and eighty participants, ≥65 years old, who were due for discharge from general medicine and older persons' wards following an acute episode of care. Exclusion criteria were limited life expectancy, transfer to another hospital and consent not gained.

MAIN OUTCOME MEASURES

Medication-related harm requiring healthcare utilisation (including primary, secondary or tertiary care consultations related to MRH), including adverse drug reactions, non-adherence and medication error determined via the review of data from three sources: patient/carer reports gathered through a structured telephone interview; primary care medical record review; and prospective consultant-led review of readmission to recruiting hospital. Frailty was measured using a Frailty Index, developed using a standardised approach. Marginal estimates were obtained from logistic regression models to examine how probabilities of healthcare service use due to medication-related harm were associated with increasing number of medicines and frailty.

RESULTS

Healthcare utilisation due to medication-related harm was significantly associated with frailty (OR = 10.06, 95% CI 2.06-49.26, P = 0.004), independent of age, gender, and number of medicines. With increasing frailty, the need for healthcare use as a result of MRH increases from a probability of around 0.2-0.4. This is also the case for the number of medicines.

CONCLUSIONS

Frailty is associated with MRH, independent of polypharmacy. Reducing the burden of frailty through an integrated health and social care approach, alongside strategies to reduce inappropriate polypharmacy, may reduce MRH related healthcare utilisation.

Characterization of potentially inappropriate medications use in Indian elderly population and their impact on quality of life using Beers criteria

Background

Polypharmacy is principal cause of potentially inappropriate medications (PIMs) in elderly patients, which include over prescribing, under prescribing, and misprescribing.

Methods

Elderly subjects (≥60 years), of either sex, receiving two or more medications for one or more chronic ailments, attending Geriatrics Outpatient Department (OPD), at All India Institute of Medical Sciences (AIIMS) New Delhi, were included. Their prescriptions were assessed for PIMs by using Beers criteria 2015 and were further followed up at least once in 6 months for adverse events, telephonically. The results were analyzed by using suitable regression models and correlation analysis.

Results

Three hundred eighty patients average age of 65.4 ± 4.7 years were enrolled. Eighty-eight percent of the people were having greater than or equal to two ailments. Each patient was prescribed 6.7 ± 2.1 medications with 65% of prescriptions having one or more PIMs. Out of the total prescribed drugs, 15% were satisfying Beers criteria for PIMs. There were 63 adverse drug reactions (ADRs) reported. A statistically significant correlation was observed among comorbidities, number of prescribed medications, PIMs, and ADRs. Quality of life (QOL) of the elderly patients was negatively corelated with polypharmacy and female sex.

Conclusion

A risk-benefit analysis of prescribed medications is part and parcel of prescribing, especially in elderly patients. In order to decrease further risks associated with inappropriate prescribing, there is need for indigenous guidelines and intensive training.

Deprescribing Interventions among Community-Dwelling Older Adults: A Systematic Review of Economic Evaluations

BACKGROUND

Deprescribing can reduce the use of inappropriate or unnecessary medication; however, the economic value of such interventions is uncertain.

OBJECTIVE

This study seeks to identify and synthetise the economic evidence of deprescribing interventions among community-dwelling older adults.

METHODS

Full economic evaluation studies of deprescribing interventions, conducted in the community or primary care settings, in community-dwelling adults aged ≥ 65 years were systematically reviewed. MEDLINE, EconLit, Scopus, Web of Science, CEA-TUFTS, CRD York and Google Scholar databases were searched from inception to February 2021. Two researchers independently screened all retrieved articles according to inclusion and exclusion criteria. The main outcome was the economic impact of the intervention from any perspective, converted into 2019 US Dollars. The World Health Organization threshold of 1 gross domestic product per capita was used to define cost effectiveness. Studies were appraised for methodological quality using the extended Consensus on Health Economics Criteria checklist.

RESULTS

Of 6154 articles identified by the search strategy, 14 papers assessing 13 different interventions were included. Most deprescribing interventions included some type of medication review with or without a supportive educational component (n = 11, 85%), and in general were delivered within a pharmacist-physician care collaboration. Settings included community pharmacies, primary care/outpatient clinics and patients' homes. All economic evaluations were conducted within a time horizon varying from 2 to 12 months with outcomes in most of the studies derived from a single clinical trial. Main health outcomes were reported in terms of quality-adjusted life-years, prevented number of falls and the medication appropriateness index. Cost effectiveness ranged from dominant to an incremental cost-effectiveness ratio of $112,932 per quality-adjusted life-year, a value above the country's World Health Organization threshold. Overall, 85% of the interventions were cost saving, dominated usual care or were cost effective considering 1 gross domestic product per capita. Nine studies scored > 80% (good) and two scored ≤ 50% (low) on critical quality appraisal.

CONCLUSIONS

There is a growing interest in economic evaluations of deprescribing interventions focused on community-dwelling older adults. Although results varied across setting, time horizon and intervention, most were cost effective according to the World Health Organization threshold. Deprescribing interventions are promising from an economic viewpoint, but more studies are needed.

Interventions to improve medicines optimisation in frail older patients in secondary and acute care settings: a systematic review of randomised controlled trials and non-randomised studies

Background: Frailty is a geriatric syndrome in which physiological systems have decreased reserve and resistance against stressors. Frailty is associated with polypharmacy, inappropriate prescribing and unfavourable clinical outcomes. Aim: To identify and evaluate randomised controlled trials (RCTs) and non-randomised studies of interventions designed to optimise the medications of frail older patients, aged 65 years and over, in secondary or acute care settings. Method: Literature searches were conducted across seven electronic databases and three trial registries from the date of inception to October 2021. All types of interventional studies were included. Study selection, data extraction, risk of bias and quality assessment were conducted by two independent reviewers. Results: Three RCTs were eligible for inclusion; two employed deprescribing as the intervention, and one used comprehensive geriatric assessment. All reported significant improvements in prescribing appropriateness. One study investigated the effect of the intervention on clinical outcomes including hospital presentations, falls, fracture, quality of life and mortality, and reported no significant differences in these outcomes, but did report a significant reduction in monthly medication cost. Two of the included studies were assessed as having ‘some concerns’ of bias, and one was judged to be at ‘high risk’ of bias. Conclusion: This systematic review demonstrates that medicines optimisation interventions may improve medication appropriateness in frail older inpatients. However, it highlights the paucity of high-quality evidence that examines the impact of medicines optimisation on quality of prescribing and clinical outcomes for frail older inpatients. High-quality studies are needed to address this gap.

Clinical and Humanistic Outcomes of Community Pharmacy-Based Healthcare Interventions Regarding Medication Use in Older Adults: A Systematic Review and Meta-Analysis

This review and meta-analysis aimed to determine the clinical and humanistic outcomes of community pharmacy-based interventions on medication-related problems of older adults at the primary care level. We identified randomized controlled trials (RCTs) examining the impact of various community pharmacy-based interventions from five electronic databases (namely, MEDLINE (Ovid), EMBASE (Ovid), CINAHL, APA PSYInfo, and Scopus) from January 2010 to December 2020. Consequently, we assessed these interventions’ clinical and humanistic outcomes on older adults and compared them with non-intervention. We included 13 RCTs in the current review and completed a meta-analysis with six of them. The included studies had a total of 6173 older adults. Quantitative analysis showed that patient education was significantly associated with an increase in the discontinuation of sedative–hypnotics use (risk ratio 1.28; 95% CI (1.20, 1.36) I2 = 0%, p < 0.00001). Moreover, the qualitative analysis showed that medication reviews and education with follow-ups could improve various clinical outcomes, including reducing adverse drug events, reducing uncontrolled health outcomes, and improving appropriate medication use among the elderly population. However, medication review could not significantly reduce the number of older adults who fall (risk ratio 1.25; 95% CI (0.78, 1.99) I2 = 0%, p = 0.36) and require hospitalization (risk ratio 0.72; 95% CI (0.47, 1.12) I2 = 45%, p = 0.15). This study showed that community pharmacy-based interventions could help discontinue inappropriate prescription medications among older adults and could improve several clinical and humanistic outcomes. However, more effective community pharmacy-based interventions should be implemented, and more research is needed to provide further evidence for clinical and humanistic outcomes of such interventions on older adults.

Safer prescribing and care for the elderly (SPACE): cluster randomised controlled trial in general practice

Background

Safer prescribing in general practice may help to decrease preventable adverse drug events (ADE) and related hospitalisations.

Aim

To test the effect of the Safer Prescribing and Care for the Elderly (SPACE) intervention on high-risk prescribing of non-steroidal anti-inflammatory drugs (NSAIDs) and/or antiplatelet medicines and related hospitalisations.

Design & setting

A pragmatic cluster randomised controlled trial in general practice. Participants were patients at increased risk of ADEs from NSAIDs and/or antiplatelet medicines at baseline. SPACE comprises automated search to generate for each GP a list of patients with high-risk prescribing; pharmacist outreach to provide education and one-on-one review of list with GP; and automated letter inviting patients to seek medication review with their GP.

Method

The primary outcome was the difference in high-risk prescribing of NSAIDs and/or antiplatelet medicines at 6 months. Secondary outcomes were high-risk prescribing for gastrointestinal, renal, or cardiac ADEs separately, 12-month outcomes, and related ADE hospitalisations.

Results

Thirty-nine practices were recruited with 205 GPs and 191 593 patients, of which 21 877 (11.4%) were participants. Of the participants, 1479 (6.8%) had high-risk prescribing. High-risk prescribing improved in both groups at 6 and 12 months compared with baseline. At 6 months, there was no significant difference between groups (odds ratio [OR] 0.99; 95% confidence intervals [CI] = 0.87 to 1.13) although SPACE improved more for gastrointestinal ADEs (OR 0.81; 95% CI = 0.68 to 0.96). At 12 months, the control group improved more (OR 1.29; 95% CI = 1.11 to 1.49). There was no significant difference for related hospitalisations.

Conclusion

Further work is needed to identify scalable interventions that support safer prescribing in general practice. The use of automated search and feedback plus letter to patient warrants further exploration.

[Prescription appropriateness in elderly patients with polypharmacy in primary care: Cluster-randomized controlled trial PHARM-PC]

Objetivos

Evaluar la efectividad de la revisión sistemática de medicación realizada por farmacéutico sobre medicaciones potencialmente inapropiadas (MPI), resultados en salud y costes.

Diseño

Ensayo clínico prospectivo, abierto, controlado y aleatorizado por clústeres.

Emplazamiento

Seis centros de atención primaria de las Islas Baleares.

Participantes

Se incluyeron 42 clústeres (21 por grupo), y 549 pacientes de ≥ 65 años y ≥ 5 medicamentos crónicos, de los cuales 277 se asignaron al Grupo Intervención (GI) y 272 al Grupo Control (GC). Se excluyeron pacientes: institucionalizados, desplazados, atendidos habitualmente por la sanidad privada, o en atención domiciliaria.

Intervención

Detección de MPI por parte del farmacéutico mediante combinación de métodos explícitos e implícitos y comunicación de las alternativas terapéuticas más apropiadas al médico prescriptor.

Mediciones

Se evaluaron la proporción de pacientes con MPI y número medio de MPI/paciente (variables principales); así como morbilidad, mortalidad, y costes (variables secundarias).

Análisis estadístico

Siguiendo el principio de intención de tratar, se compararon las variables cuantitativas y cualitativas mediante las pruebas t Student y X², respectivamente. Los resultados se expresaron como diferencia de proporciones para variables cualitativas y diferencia de medias para cuantitativas, con los correspondientes intervalos de confianza 95% (IC 95%).

Resultados

Después de la intervención, la proporción de pacientes con MPI disminuyó un 13,7% (IC 95%: 9,3; 18,2) más en GI que GC. El número medio de MPI/paciente y coste medio de MPI/paciente disminuyeron en 0,43 (IC 95%: 0,32; 0,54) y 72,11€ (IC 95%: 26,15; 118,06) más en GI que GC, respectivamente. Sin embargo, no se observaron diferencias estadísticamente significativas en morbilidad, mortalidad ni en costes de episodios asistenciales.

Conclusiones

La detección de MPI y emisión de recomendaciones por el farmacéutico pudo contribuir a reducir significativamente MPI y gasto en medicamentos, pero sin alcanzar diferencias estadísticamente significativas en morbimortalidad ni costes de episodios asistenciales.

A systematic review of general practice-based pharmacists' services to optimize medicines management in older people with multimorbidity and polypharmacy

BACKGROUND

Few studies have evaluated roles of general practice-based pharmacists (PBPs), particularly in optimizing medicines management for older people with both multimorbidity and polypharmacy.

OBJECTIVE

To explore the types and effectiveness of services provided by PBPs, either alone or in collaboration with other primary health care professionals, that sought to optimize medicines management for older people with multimorbidity and polypharmacy.

METHODS

Eight electronic databases and three trial registries were searched for studies published in English until April 2020. Inclusion criteria were randomized controlled trials, non-randomized controlled trials and controlled before-and-after studies of services delivered by PBPs in primary care/general practice, for patients aged ≥65 years with both multimorbidity and polypharmacy that focused on a number of outcomes. The Cochrane risk of bias tool for randomized trials (RoB 1) and the Risk of Bias in Non-randomized Studies-of Interventions (ROBINS-I) assessment tool were used for quality assessment. A narrative synthesis was conducted due to study heterogeneity.

RESULTS

Seven studies met inclusion criteria. All included studies employed PBP-led medication review accompanied by recommendations agreed and implemented by general practitioners. Other patient-level and practice-level interventions were described in one study. The limited available evidence suggested that PBPs, in collaboration with other practice team members, had mixed effects on outcomes focused on optimizing medicines management for older people. Most included studies were of poor quality and data to estimate the risk of bias were often missing.

CONCLUSION

Future high-quality studies are needed to test the effects of PBP interventions on a well-defined range of medicines management-related outcomes.

Development of a primary care pharmacy outcomes framework: An umbrella literature review

BACKGROUND

An aging population and rising multi-morbidity has shifted healthcare provision from secondary to primary care. Pharmacy-led services have been introduced to support this. The development of an outcomes framework for these services would facilitate conclusions to be drawn on their effectiveness.

OBJECTIVES

To identify outcomes used to evaluate pharmacy-led medication therapy and disease management services within primary care settings to develop an outcomes framework for future studies.

METHODS

An umbrella literature review was conducted. MEDLINE, EMBASE, The Cochrane Library and PsycINFO were searched in June 2020 to identify relevant articles. Eligible reviews were those including studies published from 2010 onwards which reported on the outcomes of pharmacy-led medication therapy and disease management services within primary care, excluding community pharmacy settings. Data were extracted and a content analysis, guided by the ECHO model, stratified the outcomes into four areas: economic, clinical, humanistic and service.

RESULTS

Twenty-four reviews covering 52 unique studies were identified. Pharmacy-led services included: medication reviews (n=24, 46.2%), disease and therapy management (n=17, 32.7%), educational services (n=6, 11.5%), medicines reconciliation (n=3, 5.8%), and medication compliance support (n=1, 1.9%). Services were commonly targeted towards endocrine (n=23, 44.2%) or cardiovascular diseases (n=20, 38.5%). Outcomes most commonly explored were clinical (n=38, 73.1%) and service outcomes (n=37, 71.2%), followed by humanistic (n=23, 44.2%) and economic outcomes (n=13, 25.0%). Overall, 17 sub-categories of outcomes were identified; common sub-categories were: disease indicators [clinical]; medication use and healthcare utilisation [service]; adherence to medicines [humanistic]; and healthcare costs [economic].

CONCLUSIONS

The findings informed the development of an outcomes framework to guide the evaluation of medication therapy and disease management services, and facilitate international standardised outcome measures within primary care pharmacy to be developed. This could help offer vital evidence on the effectiveness of these services to ensure the pharmacy workforce is working optimally to support primary care.

Effects of hospital pharmacist interventions on health outcomes in older polymedicated inpatients: a scoping review

PURPOSE

To identify the evidence that supports the effect of interventions made by hospital pharmacists, individually or in collaboration with a multidisciplinary team, in terms of healthcare outcomes, a more effective utilization of resources and lower costs in older polymedicated inpatients.

METHODS

We searched the following databases: MEDLINE, EMBASE and the Cochrane Library. We also conducted a hand search by checking the references cited in the primary studies and studies included in reviews identified during the process of research. Four review authors working by pairs searched for studies, extracted data, and drew up the results tables.

RESULTS

Twenty-six studies were included in the review. In 13 of them pharmacists carried out their intervention exclusively while the patients were in hospital, whereas in 13 interventions were delivered during admission and after hospital discharge. Outcomes identified were mortality, length of stay, visits to the emergency department, readmissions and reported quality of life, among others. Pharmacist interventions were found to be beneficial in fifteen studies, specifically on hospital readmissions, visits to the emergency department and healthcare costs.

CONCLUSION

There is no hard evidence demonstrating the effectiveness of hospital pharmacist interventions in older polymedicated patients. Mortality does not show as a relevant outcome. Other health care outcomes, such as hospital readmissions, visits to the emergency department and healthcare costs, seem to be more relevant and amenable to change. Interventions that include pharmacists in multidisciplinary geriatric teams seem to be more promising that isolated pharmacist interventions. Interventions prolonged after hospital discharge seem to be more appropriate that interventions delivered only during hospital admission. Better-designed studies should be conducted in the future to provide further insight into the effect of hospital pharmacist interventions.

Ghent Older People's Prescriptions Community Pharmacy Screening (GheOP3S)-Tool Version 2: Update of a Tool to Detect Drug-Related Problems in Older People in Primary Care

Background

The Ghent Older People’s Prescriptions community Pharmacy Screening (GheOP³S)-tool was developed in 2016 as a screening tool to detect drug-related problems (DRPs) and to help in performing medication reviews in older people (≥ 65 years).

Objective

This study aimed to revise and update the GheOP³S-tool.

Methods

Users’ comments were collected to improve the usability and appropriateness of the original GheOP³S-tool, followed by a two-round modified Delphi process according to the RAND/UCLA appropriateness method. This included a literature review, a round zero meeting, a first written round (with 15 international and multidisciplinary experts) and a second face-to-face round (with 11 experts) to change, delete or add GheOP³S-criteria. An additional third round with 14 community pharmacists was organised to preserve criteria applicable in the current community pharmacy practice.

Results

The updated GheOP³S-tool consists of five lists of DRPs and a new addendum containing medications that should be avoided or used with caution in older people with reduced renal function. During the first two rounds, related criteria were grouped, 14 criteria were added and 17 criteria were deleted from the original tool. All criteria were deemed applicable in round 3. This led to a final tool (version 2) with 64 GheOP³S-criteria.

Conclusion

GheOP³S-criteria were revised and updated according to experts’ agreement on their clinical relevance and recent scientific evidence. Future studies should investigate the impact of pharmacist-led medication reviews with GheOP³S-tool version 2 on clinical, humanistic and economic outcomes in primary care.

Supplementary Information

The online version contains supplementary material available at 10.1007/s40266-021-00862-6.

Risk of Hospitalization Associated with Cardiovascular Medications in the Elderly Italian Population: A Nationwide Multicenter Study in Emergency Departments

Background: There is a significant gap in knowledge addressing cardiovascular (CV) medications safety in elderly. In this context, our purposes were to define clinical and pharmacological characteristics of outpatients’ adverse drug events (ADEs) related to CV medications leading to emergency department (ED) visits in the elderly Italian patients according to different age groups, and to evaluate the risk of hospitalization associated to ADEs in this population.

Methods: A multicentre, retrospective study was performed on reports of suspected ADEs collected between 2007–2018 in 94 EDs involved in the MEREAFaPS Study. Elderly patients who experienced one or more CV medications-related ADEs leading to ED visit were selected. Patients’ characteristics, suspected (ATC classes B and C) and concomitant drugs, and ADE description were collected. Elderly patients were stratified into three age groups (65–74, 75–84, and ≥85 years) and compared to adults (18–64 years). Logistic regression analyses were used to estimate the reporting odds ratios (RORs) with 95% confidence intervals (CIs) of ADE-related hospitalization adjusting for sex, presence of two or more suspected drugs, concomitant drugs, and one or more comorbidities.

Results: Among elderly, 16,926 reports of suspected ADE related to CV medications were collected, and 6,694 (39.5%) resulted in hospitalization. Patients were mostly female, Caucasians, and middle-old (75–84). 78.9% of patients were treated with only one suspected drug, and 71.9% and 47.1% reported concomitant medications and comorbidities, respectively. Compared to adults, risk of hospitalization was significantly higher for middle-old and oldest-old patients exposed to vitamin K antagonists (1.29 [1.09–1.52] and 1.56 [1.30–187]), direct thrombin inhibitors (3.41 [1.44–8.08] and 4.12 [1.67–10.17]), antiplatelets (1.51 [1.26–1.81] and 2.09 [1.71–2.57]), and beta-blockers (1.89 [1.38–2.59 and 2.31 [1.60–3.35]). Overall, a higher risk of hospitalization was observed for renin-angiotensin system inhibitors (1.32 [1.04–1.68], 1.65 [1.32–2.06], and 2.20 [1.70–2.85]), presence of two or more concomitant drugs, and concomitant conditions.

Conclusion: Our real-world findings underline relevant safety aspects of CV medications in the elderly Italian population. ED clinicians must always consider the higher risk of hospitalization related to the use of CV drugs in elderly, particularly in oldest-old ones, for antiarrhythmics, beta-blocking agents, renin-angiotensin system inhibitors, antiplatelets, and anticoagulants.

FORTA(Fit-fOR-The-Aged)-based medication optimization: retrospective analysis of experiences from an unconventional outpatient service

Aim

To map prescription considerations concerning older community dwelling subjects emerging in a special gerontopharmacology hospital-based consultation.

Findings

Almost 10 recommendations had to be issued per patient: drugs to be stopped, added or replaced, dosing, frequency and time of intake were optimized. Applying the Fit-fOR-The-Aged (FORTA) tool resulted in a significant improvement of under- and overtreatment errors, and the sum of errors, the FORTA score.

Message

A medication review service aided by the FORTA tool detects a large number of medication errors in older outpatients and should be established in other places as well.

Purpose

To address potentially harmful polypharmacy in multimorbid older patients. Secondary to assess FORTA (Fit-fOR-The-Aged) utility in ambulatory patients.

Methods

Consecutive patients attending a novel ambulatory service for gerontopharmacology were included in this retrospective analysis. Baseline data, diagnoses, previous drug treatment and recommended changes in medication were analysed and the change of the FORTA score (sum of over- and undertreatment errors) calculated.

Results

The analysis of 182 cases revealed a high number of recommended medication alterations per case (9.81; 95% CI 9.13–10.50). The FORTA score was significantly reduced from 4.24 ± 2.30 to 0.80 ± 1.08 (P < 0.00001), as were under- and overtreatment errors if analysed separately.

Conclusions

The large number of recommendations given in this special outpatient service points to a profound unmet medical need for improving medications in older patients. The FORTA approach was found to be useful to reduce both over- and undertreatment in multimorbid older patients.