Pregnant women with Multiple Sclerosis (MS)

April 17, 2006

NeuroVax announced positive results of a clinical trial of NeuroVax for the treatment of multiple sclerosis (MS) at the AAN Annual Meeting. This open-label study enrolled 25 subjects, 17 of whom had not previously received NeuroVax. The untreated patient subset showed significantly lower levels of FOXP3+ regulatory T-cells (as measured by FOXP3+ mRNA (p=0.03) and protein expression (p=0.02)). Trial data indicated that NeuroVax significantly increased FOXP3 expression in 14 of 17 subjects, including levels of both FOXP3+ mRNA (p=0.01) and FOXP3 protein (p=0.02). Based on these results, the company confirmed plans to initiate a phase II trial of NeuroVax for the treatment of MS across sites in the US and Eastern Europe later in 2006; this study was designed to investigate the effect of the drug on MRI measures and relapse rates.