Journal
EXPERT REVIEW OF PHARMACOECONOMICS & OUTCOMES RESEARCH
Volume 23, Issue 7, Pages 797-803Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14737167.2023.2219898
Keywords
eptinezumab; migraine; patient-reported outcome measures; quality of life; utility scores
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This post hoc analysis aimed to estimate the therapeutic effect of eptinezumab on health utilities and determine the extent to which changes in monthly migraine days explain the changes in health utilities. The study found that reducing monthly migraine days was associated with an increase in health utility scores. Patients treated with eptinezumab had higher utility scores compared to those treated with placebo, indicating a treatment-specific impact on health utility scores in addition to the reduction in migraine days.
BackgroundThis post hoc analysis aimed to estimate eptinezumab's therapeutic effect on health utilities and determined to which extent monthly migraine days (MMDs) explain changes in health utilities.Research Design/MethodsDELIVER, a randomized, double-blind, placebo-controlled phase 3b trial (NCT04418765), investigated eptinezumab efficacy and safety in patients with 2-4 prior migraine treatment failures. Regression analysis explored the relationship between utility scores and MMDs, with eptinezumab treatment as a covariate along with MMDs to identify any MMD-independent effect on utilities. Path analysis quantified eptinezumab's impact as mediated through MMD reduction.ResultsThe base case model showed that each reduction in MMD was associated with a mean utility score increase (0.0189; 95% CI: 0.0180, 0.0198; P < 0.001). Mean utility score was generally higher for eptinezumab versus placebo, justifying addition of treatment effect to the base case model. Patients administered eptinezumab had on average 0.0562 (95% CI: 0.0382, 0.0742; P < 0.001) higher utility versus placebo when controlling for number of MMDs. From path analysis, MMD reduction resulting from eptinezumab treatment accounted for 53% additional utility gain observed in patients.ConclusionsChanges in MMDs alone inadequately captured migraine's impact on patient utility, as there was also a positive eptinezumab-driven, treatment-specific impact on utility score.
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