Can you name keytruda's fda approval date for initial use?

What was Keytruda’s FDA approval date for its initial use?

Pembrolizumab (Keytruda) received its FDA approval on September 4, 2014 for advanced melanoma (initial indication).

Sources:
1. https://www.fda.gov/drugs/resources-information-approved-drugs/infographic-fda-approvals-pembrolizumab-keytruda