What is the exact year keytruda received fda approval?

What exact year did Keytruda (pembrolizumab) get FDA approval?

Keytruda received its first FDA approval in 2014 [1].

Was it approved the same year for every cancer indication?

No. Keytruda’s initial approval in 2014 was for a specific indication, and additional indications were added in later years through subsequent FDA approvals and label expansions [1].

Which “approval” year do people usually mean—first approval or a specific expanded indication?

Most people mean the first FDA approval year (2014) [1]. If you tell me which cancer type or indication you’re looking at, I can pinpoint the year that specific label was approved.

Sources
[1] https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm?event=overview.process&ApplNo=125514