Introduction: Consistent treatment adherence is an important determinant of durable response in multiple sclerosis (MS). Published data indicate that adherence to > 80% of prescribed doses may be considered optimal. Feedback of electronic application monitoring data to patients has been considered a promising means to support high adherence.

Methods: The 2-year prospective non-interventional study REBIFLECT conducted at outpatient neurological centers (731 patients at 134 study sites in Germany) investigated whether treatment adherence to subcutaneous (sc) interferon beta-1 injection during a 1-year period is enhanced by regular physician-patient talks reflecting dosing data recorded by the application device in the context of clinical data or disease parameters. Qualitative adherence was defined as number of weeks with properly distributed injections per total number of weeks with prescribed injections. Quantitative adherence was defined as number of administered injections per prescribed injections.

Results: Overall median qualitative adherence was 90.5%. Approximately 70% of patients with adherence data available in the respective periods had a qualitative treatment adherence of 80-100%. With a mean of 97.9% quantitative adherence was very high and remained stable in the 2-year observation period. The stability of this effect is demonstrated by the subgroup with just one reflection talk (≥ 100%) and only a slight decrease in the subgroup with more than five reflection talks (97.9%).

Conclusion: Treatment adherence with the Rebismart device was generally very high, consistent with other non-interventional studies. The first reflection talk supported by RebiSmart induces excellent adherence, stabilized by repetition. Reflection to patients of subcutaneous interferon beta-1a treatment monitored by RebiSmart is recommended to ensure prolonged strong treatment adherence.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9122862PMC
http://dx.doi.org/10.1007/s12325-022-02100-wDOI Listing

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