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Study reveals potential to reduce the number of medications prescribed for older people

By Irish Pharmacist - 08th Feb 2022

A study by researchers at RCSI University of Medicine and Health Sciences of GP-delivered medication for older people led to an overall reduction in the number of medicines prescribed. The research, published in PLOS Medicine, was led by Prof Susan Smith and Dr Caroline McCarthy of the Department of General Practice at the RCSI. There is an increasing number of older people living with multiple medical conditions who are prescribed several medicines. This creates significant challenges for the healthcare system at large in terms of costs, as well as for the individual (and their carers) in coping with taking so many medicines, and for the clinicians who decide what should be taken.

The SPPiRE (Supporting prescribing in older people with multimorbidity and significant polypharmacy in primary care) research project aimed to address these challenges. This study consisted of a randomised, controlled trial involving 51 GP practices and 404 patients throughout the Republic of Ireland. Older patients with multimorbidity taking at least 15 regular medicines were invited to attend a medication review with their GP. The review included screening their prescription for potentially inappropriate combinations of medicines, considering opportunities for stopping medicines, and assessing the patient’s priorities for treatment. It then assessed whether this onceoff GP-delivered medication review reduced the number of medicines and improved the quality of prescribing.

There was a significant reduction in the number of medicines in the intervention group compared to the control group, with over 800 medicines being stopped in 208 intervention patients. Of the 800+ medicines ceased, 15 possible adverse events were reported, almost all of which were mild reactions that stopped once the medicine was re-introduced, indicating that stopping certain medicines in older people is generally safe. The quality of prescribing was also assessed, using a checklist of potentially inappropriate combinations of medicines. While there were no significant improvements in the quality of prescribing in the intervention group compared to the control group, overall there were improvements in both groups during the study period.

Prof Smith commented: “The intervention approach to managing this challenging problem is promising and demonstrates that, even in this very complex group, stopping medicines that may no longer be needed or appropriate is both possible and generally safe.”

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