• Jennifer Mead, Ryan Dammerman, and Soeren Rasmussen.
• Amgen Inc., Thousand Oaks, CA, USA.
• Patient Prefer Adher. 2020 Jan 1; 14: 1137-1144.

PurposeErenumab-aooe (erenumab, Aimovig®)-a fully human monoclonal antibody that inhibits the calcitonin gene-related peptide (CGRP) receptor-is approved for the prevention of migraine in adults in a number of countries. The approved monthly dosage of erenumab (70 and/or 140 mg, depending on the country) is available as a single, prefilled autoinjector for subcutaneous administration in most countries where it is approved. This study evaluated the patient-reported ease-of-use, ability to learn self-injection, confidence in performing a simulated self-injection, and ergonomics of a prefilled autoinjector device for erenumab (SureClick® autoinjector) in individuals in the US with migraine.Patients And MethodsParticipants with migraine headaches, all of whom were naïve to the use of an autoinjector for migraine or another condition and CGRP therapy, were recruited from three US-based headache centers. Each participant received a supervised demonstration of the autoinjector during a 30-minute one-on-one session using a standard protocol-driven script. Participants then practiced a simulated injection into an artificial tissue pad using the autoinjector and were asked to rate their agreement with 19 statements about the device on a 5-point Likert scale (1 = completely disagree, 2 = somewhat disagree, 3 = neutral, 4 = somewhat agree, 5 = completely agree).ResultsParticipants who completed the study and provided responses (n = 204) were between 21 and 85 years of age, inclusive, and 73% were female. More than 90% of the participants completely or somewhat agreed with 16/19 statements relating to the device, including ease-of-use, ability to self-inject, and confidence in using the device, with an average rating of >4.5 on the 5-point Likert scale. Participants rated the size of the device and the compactness of the device as 4.23/5 and 4.26/5, respectively.ConclusionThe erenumab-prefilled disposable autoinjector was consistently highly rated across categories by individuals with migraine, with an average rating of >4.5 on the 5-point Likert scale; results were consistent across the three study centers.© 2020 Mead et al.

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