Anavex had nothing to do with this decision. The cost of running a trial during a pandemic was not worth the profit potential of a Rett drug. As the memo said, the data was blinded and had no bearing on the decision to end the trial. Profitability matters more.
It's good news for Anavex and its shareholders but terrible news for the Rett community because there's no guarantee either of the two remaining candidates will receive FDA approval, though both look promising.