Can you identify keytruda's initial fda approved cancer indication?

What was Keytruda’s first FDA-approved cancer use?

Keytruda (pembrolizumab) received its initial FDA approval for the treatment of unresectable or metastatic melanoma.

When did that first approval happen?

The initial FDA approval for Keytruda was granted in 2014.

What exactly qualified as “initial indication”?

At first approval, Keytruda was indicated for patients with unresectable or metastatic melanoma (a cancer type where the drug later expanded into many additional indications).

Source

[1] https://www.drugpatentwatch.com/