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Arcus falls after co and Gilead scrap late-stage trial of cancer drug combo

ReutersDec 12, 2025 1:47 PM

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

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