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U.S. stock market movements | Cassava Sciences(SAVA. US) pre-hours rise more than 8% The FDA rejects a citizen petition applying for a moratorium on drug trials for Alzheimer's disease

Zhitong Finance APP learned that before the US stock market on February 11 (Friday), as of press time, Cassava Sciences (SAVA. US) rose 8.01 percent at $57.3. On the news side, the U.S. Food and Drug Administration (FDA) rejected a citizens' petition to suspend a key trial of Cassava Sciences' Alzheimer's drug simufilam.

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