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Updated cost-effectiveness analysis of onabotulinumtoxinA for the prevention of headache in adults with chronic migraine who have previously received three or more preventive treatments in the UK.

Abstract：

:Aims: OnabotulinumtoxinA is recommended by NICE for the treatment of chronic migraine. This economic evaluation provides updated estimates of the cost-effectiveness of onabotulinumtoxinA for chronic migraine using new utility estimates in an existing model structure.Methods: A previously published model was revised to include EQ-5D utility estimates from a large observational study (REPOSE; n = 633). Efficacy data were taken from the pooled phase III PREEMPT clinical trial program, while resource utilization estimates were obtained from the International Burden of Migraine Study (IBMS). The model estimated costs and quality-adjusted life years (QALYs) gained over 2 years from the UK NHS perspective.Results: OnabotulinumtoxinA treatment resulted in total discounted incremental costs of £1,204 and an incremental discounted QALY gain of 0.07 compared with placebo in patients with chronic migraine who have previously failed three or more preventive treatments, corresponding to an incremental cost-effectiveness ratio (ICER) of £16,306 per QALY gained. Scenario analysis showed that the administration of onabotulinumtoxinA by a specialist nurse rather than a neurology consultant reduced the ICER from £16,306 to £13,832 per QALY gained. Removal of the positive stopping rule recommended in current NICE guidance increased the ICER to £20,768 per QALY for onabotulinumtoxinA vs. placebo. Combining these two scenarios produced an ICER of £17,686 per QALY gained.Conclusion: NICE recommended onabotulinumtoxinA for the prevention of chronic migraine in 2012 amid concerns about the uncertainty of ICER estimates, with a positive stopping rule used to manage some of these uncertainties. Since the publication of the NICE guidance, the REPOSE study provides a more recent source of utility data based on real-world evidence. The results of analyses including these utilities suggest that the application of the positive stopping rule may not be necessary to ensure cost-effectiveness and that this aspect of the current NICE guidance for onabotulinumtoxinA may merit reconsideration.

journal_name

J Med Econ

journal_title

Journal of medical economics

authors

Hollier-Hann G,Curry A,Onishchenko K,Akehurst R,Ahmed F,Davies B,Keyzor I

doi

10.1080/13696998.2019.1675417

subject

Has Abstract

pub_date

2020-01-01 00:00:00

pages

113-123

issue

eissn

1369-6998

issn

1941-837X

journal_volume

pub_type

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Updated cost-effectiveness analysis of onabotulinumtoxinA for the prevention of headache in adults with chronic migraine who have previously received three or more preventive treatments in the UK.