Satisfaction and practicality of a prefilled glatiramer acetate pen in relapsing-remitting multiple sclerosis patients.

Aim: Evaluation of practicality and patient satisfaction of a glatiramer acetate (GA) prefilled pen in patients with relapsing-remitting multiple sclerosis (RRMS). Patients & methods: A cross-sectional, multicenter, observational study evaluating patients' experiences with the GA-pen 3 months after its first use by means of self-reporting questionnaires. Primary end point was the proportion of patients who were satisfied with the pen. Results: 80 patients participated in the study. The majority (83.7%) was satisfied with the pen and 95% rated its application as easy or very easy. Conclusion: Most patients were satisfied with the GA-pen and rated its application as easy or very easy. Among the 12 device features, starting the injection without an injection button was considered the most appreciated feature. Improvements in pen functionality and design might allow patients to overcome many difficulties with self-injection, even those leading to nonadherence. But, this hypothesis awaits further validation by real-world follow-up studies.