Regeneron, Sanofi are ready to debut the 6th PD-1/L1. Is it still possible to stand out from the growing crowd?
Regeneron $REGN and Sanofi $SNY rolled out an update on their PD-1 checkpoint cemiplimab this morning, demonstrating that the promising early data they had seen on a high response rate for a deadly skin cancer remained intact for close to half of all the patients enrolled in the pivotal Phase II trial.
Investigators came up with a 46.3% ORR for advanced cutaneous squamous cell carcinoma in the study, which is being taken to regulators in search of a quick OK for what will likely be the world’s sixth PD-1/L1 therapy to hit the market. According to recent research from the Cancer Research Institute, there are another 49 PD-1/L1 checkpoints in clinical development, with hundreds more in preclinical research.
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