After a year as Merck KGaA healthcare CEO, Guenter reflects on I-O bispecific flop, spots new multiple sclerosis strategy

Just a few days after Peter Guenter joined Merck KGaA as its healthcare CEO at the beginning of 2021, the 22-year Sanofi veteran found himself picking up the pieces from a major setback: Then-GlaxoSmithKline-partnered bispecific antibody bintrafusp alfa failed to outdo Merck & Co.’s PD-1 king Keytruda in a high-profile head-to-head trial in non-small cell lung cancer.

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