Artiva Halts Therapy and Cuts 94% of Staff

Artiva Biotherapeutics is discontinuing its experimental cell therapy for autoimmune conditions and slashing its workforce by 94 percent following two patient deaths in a mid-stage clinical trial. The company will now evaluate strategic alternatives as shares slump 32 percent.

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FILE PHOTO: A lab technician performs a test at a laboratory in the Hague, the Netherlands, October 24, 2017. REUTERS/Michael Kooren/File Photo

Artiva Biotherapeutics will halt development of its lead cell therapy and cut its workforce by 94% following two patient deaths, sending shares plunging 32%. The sudden termination ends the clinical path for AlloNK after safety complications derailed the mid-stage trial. Investors face a total loss of momentum in the company's core pipeline as management evaluates strategic alternatives.