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Yan VKC, Haendler M, Lau H, Li X, Lao KSJ, Tsui SH, Yap CYL, Knapp MRJ, Chan EW. Cost-Effectiveness of Midazolam Versus Haloperidol Versus Olanzapine for the Management of Acute Agitation in the Accident and Emergency Department. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2022; 25:1099-1106. [PMID: 35151559 DOI: 10.1016/j.jval.2021.11.1374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 10/31/2021] [Accepted: 11/29/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVES A multicenter randomized clinical trial in Hong Kong Accident and Emergency (A&E) departments concluded that intramuscular (IM) olanzapine is noninferior to haloperidol and midazolam, in terms of efficacy and safety, for the management of acutely agitated patients in A&E setting. Determining their comparative cost-effectiveness will further provide an economic perspective to inform the choice of sedative in this setting. METHODS This analysis used data from a randomized clinical trial conducted in Hong Kong A&E departments between December 2014 and September 2019. A within-trial cost-effectiveness analysis comparing the 3 sedatives was conducted, from the A&E perspective and a within-trial time horizon, using a decision-analytic model. Sensitivity analyses were also undertaken. RESULTS In the base-case analysis, median total management costs associated with IM midazolam, haloperidol, and olanzapine were Hong Kong dollar (HKD) 1958.9 (US dollar [USD] 251.1), HKD 2504.5 (USD 321.1), and HKD 2467.6 (USD 316.4), respectively. Agitation management labor cost was the main cost driver, whereas drug costs contributed the least. Midazolam dominated over haloperidol and olanzapine. Probabilistic sensitivity analyses supported that midazolam remains dominant > 95% of the time and revealed no clear difference in the cost-effectiveness of IM olanzapine versus haloperidol (incremental cost-effectiveness ratio 667.16; 95% confidence interval -770.89, 685.90). CONCLUSIONS IM midazolam is the dominant cost-effective treatment for the management of acute agitation in the A&E setting. IM olanzapine could be considered as an alternative to IM haloperidol given that there is no clear difference in cost-effectiveness, and their adverse effect profile should be considered when choosing between them.
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Affiliation(s)
- Vincent K C Yan
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Miriam Haendler
- School of Pharmacy, University College London, London, England, UK
| | - Hayden Lau
- Department of Accident and Emergency, Queen Mary Hospital, Hong Kong Special Administrative Region, China
| | - Xue Li
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China; Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China; Laboratory of Data Discovery for Health (D(2)4H), Hong Kong Science Park, Hong Kong Special Administrative Region, China
| | - Kim S J Lao
- Global Medical and Scientific Affairs, Merck Research Laboratories, Merck Sharp & Dohme, Xuhui, Shanghai, China
| | - Sik-Hon Tsui
- Department of Accident and Emergency, Queen Mary Hospital, Hong Kong Special Administrative Region, China
| | - Celene Y L Yap
- Department of Nursing, Melbourne School of Health Sciences, The University of Melbourne, Australia
| | - Martin R J Knapp
- Care Policy and Evaluation Centre, London School of Economics and Political Science, London, England, UK
| | - Esther W Chan
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China; Laboratory of Data Discovery for Health (D(2)4H), Hong Kong Science Park, Hong Kong Special Administrative Region, China; Department of Pharmacy, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China; Shenzhen Institute of Research and Innovation, The University of Hong Kong, Shenzhen, China.
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