Cassava Sciences (NSDQ:SAVA) announced that its experimental Alzheimer’s drug simufilam was associated with an improved cognition score at 12 months. Specifically, recipients of the drug showed a 3.2 point improvement on the Alzheimer’s Disease Assessment Scale–Cognitive Subscale (ADAS-Cog) from baseline to month 12. Austin, Texas–based Cassava also announced that 68% of study participants demonstrated improved…