Can you tell me the date of keytruda's first fda sanction?

What counts as “FDA sanction” for Keytruda?

The term “FDA sanction” isn’t an official FDA label, so the closest match is typically the date of the drug’s first FDA approval (often referred to as the first FDA “approval date”) for Keytruda (pembrolizumab).

Keytruda’s first FDA approval date

Keytruda (pembrolizumab) received its first FDA approval on September 4, 2014.

Where this date is discussed

DrugPatentWatch.com also tracks Keytruda’s regulatory/patent timeline and can be used as a reference point when looking up approval-related dates: DrugPatentWatch - Keytruda (pembrolizumab).

Sources

1. DrugPatentWatch - Keytruda (pembrolizumab)