Roche unit, Merck KGaA to develop companion test for cancer treatment

Ventana Medical Systems, a member of the Roche Group (RHHBY), announced it has entered into an agreement with Merck KGaA (MKGAY), which operates as EMD Serono in the United States and Canada, to collaborate with Merck KGaA's biopharmaceutical division on the development and commercialization of a companion diagnostic for an undisclosed target using Ventana's proprietary diagnostic assays.

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