Effectiveness of Shared Pharmaceutical Care for Older Patients

RESPECT Trial Findings

Published in: The British Journal of General Practice, v. 60, no. 570, Jan. 2010, p. e10-e19

Posted on RAND.org on December 31, 2009

by S Richmond, V Morton, B Cross, I Wong, I Russell, Z Philips, Jeremy N. V. Miles, A Hilton, G Hill, A Farrin, Adelaide Coulter, H Chrystyn, P Campion

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BACKGROUND: Pharmaceutical care serves as a collaborative model for medication review. Its use is advocated for older patients, although its cost-effectiveness is unknown. Although the accompanying article on clinical effectiveness from the RESPECT (Randomised Evaluation of Shared Prescribing for Elderly people in the Community over Time) trial finds no statistically significant impact on prescribing for older patients undergoing pharmaceutical care, economic evaluations are based on an estimation, rather than hypothesis testing. AIM: To evaluate the cost-effectiveness of pharmaceutical care for older people compared with usual care, according to National Institute for Health and Clinical Excellence (NICE) reference case standards. METHODS: An economic evaluation was undertaken in which NICE reference case standards were applied to data collected in the RESPECT trial. RESULTS: On average, pharmaceutical care is estimated to cost an incremental £10 000 per additional quality-adjusted life year (QALY). If the NHS's cost-effectiveness threshold is between £20 000 and £30 000 per extra QALY, then the results indicate that pharmaceutical care is cost-effective despite a lack of statistical significance to this effect. However, the statistical uncertainty surrounding the estimates implies that the probability that pharmaceutical care is not cost-effective lies between 0.22 and 0.19. Although results are not sensitive to assumptions about costs, they differ between subgroups: in patients aged >75 years pharmaceutical care appears more cost-effective for those who are younger or on fewer repeat medications. CONCLUSION: Although pharmaceutical care is estimated to be cost-effective in the UK, the results are uncertain and further research into its long-term benefits may be worthwhile.

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