Resumen

ZANGA, Gisela et al. Adherence to treatment of multiple sclerosis in a health care program. Medicina (B. Aires) [online]. 2021, vol.81, n.3, pp.311-317. ISSN 0025-7680.

Adherence to prescribed treatment in chronic diseases, as occurs in multiple sclerosis (MS), is a critical factor for a successful therapeutic response. The objective of this study was to evaluate the association between demographic variables and adherence to treatment of the population of MS patients in Argentina. A retrospective cohort study of MS patients who received treatment with disease-modifying drugs, included in the drug dispensing database of the National Care Medical Program: PAMI (Programa Asistencia Médica Integral), was conducted. Optimal adherence was defined as an acquisition of the drug greater than 80% during a 9-month follow-up. A total of 648 patients were included, mean age 55 years (IQR 46-64), 59.4% women. The mean adherence to treatment was 67% (IQR 44-89) and optimal adherence was documented only in 35.5% of cases. Adherence to injectable medications was 10% lower than that of oral drugs (p = 0.0001) and the use of original brands was associated with 7.4% greater adherence than with generic drugs (p = 0.001). In conclusion, adherence to treatment has been suboptimal. In the Patagonian region, the use of injectables and generic drugs was associated with lower adherence to therapy. These data are very important in order to planning socio-sanitary programs that aim to increase therapeutic adherence.

Palabras clave : Adherence; Multiple sclerosis; Disease modifying treatment.

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