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Pfizer acquires option to buy Vivet Therapeutics for equivalent of $635.8 million

Tomi Kilgore

Pfizer Inc. said Wednesday it has paid 45 million euro, or the equivalent of $51 million to acquire a 15% equity stake in privately held gene therapy company Vivet Therapeutics, and has acquired an option to buy the rest of Vivet shares for EUR560 million ($635.8 million). Pfizer's stock rose 0.2% in premarket trade. Pfizer and Vivet will collaborate on developing VTX-801, Vivet's treatment for Wilson disease, a life-threatening liver disorder of impaired copper transport. Under terms of the deal, Pfizer can exercise its option to buy 100% of Vivet after the company's delivery of certain data from the phase 1/2 trial for VTX-801. Monika Vnuk, vice president of worldwide business development at Pfizer, will join Vivet's board of directors. Pfizer's stock has gained 16.4% over the past 12 months through Tuesday, while the Dow Jones Industrial Average has tacked on 4.7%.