FDA busts Mer­ck­'s Keytru­da in triple-neg­a­tive breast can­cer with a CRL — not un­ex­pect­ed giv­en its dis­as­trous ad­comm

Mer­ck and the FDA have en­gaged in a high-noon stand­off over check­point in­hibitor Keytru­da in triple-neg­a­tive breast can­cer af­ter the agency round­ly panned its re­sults in high-risk pa­tients. Now, with a de­ci­sive ad­comm sup­port­ing its crit­i­cisms, the FDA has shown Keytru­da the door in that in­di­ca­tion.

The FDA slapped Keytru­da with a CRL in high-risk triple-neg­a­tive breast can­cer af­ter the agency’s On­co­log­ic Drugs Ad­vi­so­ry Com­mit­tee hand­ed out a rather gen­tle slap­down on the I/O drug’s ap­pli­ca­tion last month, Mer­ck said Mon­day.

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