
Shares of drug developer Arcus Biosciences RCUS.N fall 8.5% to $23 premarket
Co says it and Gilead GILD.O will stop a late-stage study testing their experimental cancer drug combination in patients with advanced stomach and esophageal cancers after it failed to show a survival benefit
An interim analysis showed the combination of GILD's domvanalimab and RCUS' zimberelimab with chemotherapy did not improve overall survival compared to Bristol Myers Squibb's BMY.N nivolumab and chemotherapy
Up to last close, stock had risen 68.8% YTD