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This retrospective analysis aimed to characterize patients with migraine initiating erenumab and the shifting or trend of patient characteristics over time in a real-world setting.Adult patients with at least one erenumab written prescription/administration between May 1, 2018 and September 30, 2019 were identified from the Optum De-identified Electronic Health Record (EHR) database (index date = date of the first erenumab prescription/administration). Patient demographics and characteristics, acute and preventive medications used prior to initiation of erenumab, and the initial prescriber specialty were examined. In addition, the shifting or trends of patient characteristics over time were analyzed among subgroups of patients based on when they initiated erenumab.A total of 14,774 eligible patients who met inclusion and exclusion criteria were included in the analysis. Most patients were female (86.4%), average age 46.3 (standard deviation [SD] = 13.1) years, Caucasian (88.7%), non-Hispanic (91.8%), and commercially insured (59.8%) at the index date. During the 12-month pre-index period, commonly observed selected comorbid conditions included anxiety (30.6%), depression (28.2%), and cardiovascular diseases (26.4%), and the mean (SD) Elixhauser comorbidity score was 1.7 (5.5). The most common provider specialty at erenumab initiation was neurologist/headache specialist (46.5%). Over time, there was a decrease in mean baseline Elixhauser comorbidity score at erenumab initiation, an increase in general practitioners prescribing initial erenumab, and increased utilization in patients with less severe migraine overall (a proxy of the declining trend in chronic migraine and triptan use).Early use of erenumab post approval focused on patients with more severe disease and a high comorbidity index rating. Over time, utilization of this preventive medication occurred in a broader population of patients with migraine, with increased use by general practitioners and those outside of headache centers. |
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