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See the DrugPatentWatch profile for Pembrolizumab
Pembrolizumab (Keytruda) was first approved by the FDA on September 4, 2014.
That initial approval covered pembrolizumab for unresectable or metastatic melanoma that had progressed after treatment with ipilimumab and, if BRAF V600 mutation–positive, a BRAF inhibitor.
The FDA approval date for the product itself remains the original 2014 approval date. What changes over time are FDA approval dates for new indications, which are added after the initial launch.
If you tell me the cancer type (for example, NSCLC, renal cell carcinoma, head and neck cancer), I can narrow down the specific FDA label approval timing for that indication.
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