Covid-19 roundup: Synairgen turns to post-hoc analyses after failed drug trial; EU terminates Valneva vaccine contract

After halting enrollment in an NIH-led Phase II/III study, and failing an earlier Phase III trial, UK-based Synairgen’s Covid-19 drug did show some promise in some select subgroups, the company said in its presentation of a post-hoc analysis on Monday at a conference in San Francisco.


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