REPORT FROM THE 67TH AMERICAN ACADEMY OF NEUROLOGY (AAN) ANNUAL MEETING – WASHINGTON DC, APRIL 18-25, 2015 – A number of analyses of phase III studies have shown that about one-third of patients treated with a higher efficacy disease-modifying therapy can achieve no evidence of disease activity (NEDA), defined as no relapses, no MRI activity and no EDSS progression (see Optimizing patient assessment in MS: NEDA and beyond, NeuroSens, March 12, 2015).
Moreover, preliminary data suggest that 2-year NEDA rates are prognostic of better outcomes at long-term follow-up. In the STRATA extension study (which included patients from AFFIRM), at 7.4-year follow-up the mean ARR was 0.08 in those with NEDA in the first two years of treatment and 0.13 in those who didn’t achieve NEDA (O’Connor et al. AAN 2015; abstract P7.221). The cumulative probability of EDSS progression confirmed at 6 months was 23.3% and 37.5%, respectively, for the two groups. An improvement in EDSS scores was seen in 38.7% and 26.8%, respectively, in the NEDA+ and NEDA- groups. Read More