Pharmacoeconomic aspects of poor adherence to treatment in multiple sclerosis management

Multiple sclerosis (MS) is a chronic autoimmune disease, which affects the central nervous system and is the leading cause of chronic disability in young adults. Especially in the most common form characterized by relapses and remissions (RRMS), MS is a major burden on the NHS and society at a cost of illness per year for Italy estimated at 1.5 billion euros. The DMT (Disease-Modifying Therapies) when used continuously since the diagnosis of the disease have proved effective in reducing the risk of relapses, slowing the progression of the disease, reducing the consumption of health resources, especially hospitalizations, with a significant savings on healthcare costs. High rates of adherence have been associated with DMT not only to improved clinical performance, but also to a significant reduction in costs associated with the consumption of health resources. Because some recent studies have shown that the use of IFNβ-1a IM leads to better adherence to therapy and a significant savings in hospitalizations, outpatient visits, and also on the access to the PS, it is desirable that in Italy the use of IFNβ-1a IM will become ever greater. In this way, we can assume that we can achieve a significant saving in direct health care costs that affect the NHS, as has been observed in some foreign studies in which adherence to treatment was associated with a reduction in the average annual cost per patient between 33 and 65%.