NeuroRx Announces ZYESAMI™ (aviptadil, RLF-100) Met the Primary Endpoint of Its Phase 2b/3 Clinical Trial and Also Demonstrated a Meaningful Benefit in Survival from Critical COVID-19 prnewswire.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from prnewswire.com Daily Mail and Mail on Sunday newspapers.