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Title: Migraine-related healthcare resource use and costs for subjects prescribed fixed-dose combination sumatriptan/naproxen sodium vs. single-entity oral triptans in a managed care population in the USA.
Author: Runken MC, Goodwin B, Shah M, Eaddy M, D'Souza A, Bowers B, Bell CF.
Journal: Appl Health Econ Health Policy; 2015 Feb; 13(1):109-20. PubMed ID: 25294555.
Abstract:
BACKGROUND: Randomized clinical trials have demonstrated that the efficacy of a fixed-dose single-tablet combination containing sumatriptan and naproxen sodium (S/NS) was greater than either of its individual components. Simplifying drug regimens (e.g., via a fixed-dose combination) has been shown to improve "real-world" outcomes by reducing pill burden and treatment regimen complexity, improving adherence, and reducing healthcare resource use and associated costs; however, no studies assessing such outcomes have been conducted to date for the acute treatment of migraine. OBJECTIVE: To assess migraine-related healthcare resource use and associated costs for subjects prescribed S/NS vs. subjects prescribed single-entity oral triptans (SOTs) within a managed care population in the USA. METHODS: In this retrospective analysis of administrative claims data from July 1, 2008 to December 31, 2009 (IMS LifeLink), subjects meeting the following criteria were selected: one or more pharmacy claim(s) for either S/NS or SOT (index date), aged 18-64 years; at least one migraine diagnosis, and continuous enrollment in the 6 months prior to and post the index date. The study population was subsequently stratified for two analyses: triptan-naïve (triptan naïve in the 6-month period prior to the index date) and triptan-switch (triptan user in the 6-month period prior to the index date and switching to another triptan). Subjects prescribed S/NS were propensity-score matched with subjects prescribed SOT (triptan-naïve analysis: 1:3; triptan-switch analysis: 1:1) to assess differences in healthcare resource use and associated costs (2009 US$) between the S/NS and SOT groups. RESULTS: Results from the triptan-naïve and triptan-switch analyses suggest that subjects prescribed S/NS are likely to have similar healthcare resource use patterns as those either newly initiated on an SOT or switching SOTs, as measured by migraine medication use, migraine-related healthcare resource use, and all-cause healthcare resource use. One exception was the observed increased use of opioids in the SOT group compared with the S/NS group (change in mean number of tablets pre-index vs. post-index, S/NS vs. SOT; triptan-naïve analysis: 8.6 vs.18.3, p = 0.045; triptan-switch analysis: -8.2 vs. 17.7; p = 0.120). Total costs from the triptan-naïve analysis indicated that the S/NS group had lower migraine-related (US$744 vs. US$820; p = 0.067) and all-cause healthcare costs (US$4,391 vs. US$4,870; p = 0.040) when compared with the SOT group, driven by savings in medical costs (migraine-related: US$252 vs. US$380; p = 0.001; all-cause: US$3,023 vs. US$3,599; p = 0.014). However, no significant differences were observed for total costs from the triptan-switch analysis (migraine-related healthcare costs, S/NS vs. SOT: US$1,159 vs. US$1,117; p = 0.929; all-cause healthcare costs: US$5,128 vs. US$4,788; p = 0.381). CONCLUSION: Study results suggest similar healthcare resource use patterns and associated costs when comparing S/NS and SOT across a triptan-naïve and triptan-experienced population. While the current study focuses on direct medical costs, future studies should extend beyond such a perspective to explore functional status, productivity, and health-related quality of life and satisfaction, attributes not captured in administrative claims data, but nonetheless important treatment goals.

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