“…Several studies have shown that people with MS who switch from an established DMT to a newer DMT (with an evidence base supporting superior efficacy to that of an established DMT) are more likely to be free from relapses (Prosperini et al, 2012;Bergvall et al, 2014;He et al, 2015;Spelman et al, 2015), disability progression (Prosperini et al, 2012;He et al, 2015;Spelman et al, 2015) and new MRI activity (Prosperini et al, 2012) and can even experience improvements in their disability status (He et al, 2015) compared with switching to another established DMT. A number of other studies have demonstrated that improvements in disability (Kallweit et al, 2012;Svenningsson et al, 2013;Butzkueven et al, 2014a;Kalincik et al, 2015a), quality of life measures (Khatri et al, 2014), fatigue (Svenningsson et al, 2013) and cognition (Svenningsson et al, 2013) are also possible when people with MS receive a newer DMT (with an evidence base supporting superior efficacy to that of an established DMT; Table D.1) (Khatri et al, 2011;Kallweit et al, 2012;Prosperini et al, 2012;Svenningsson et al, 2013;Bergvall et al, 2014;Butzkueven et al, 2014;Khatri et al, 2014;Meng et al, 2014;He et al, 2015;Kalincik et al, 2015a;Spelman et al, 2015). As adequate control of disease activity will not always be achieved in all people with MS taking any one DMT, regular monitoring should be the cornerstone of any treatment strategy (Section 8).…”