deaths (OS)

mHNSCC - L2 - PDL1 positive metastatic-recurrent HNSCC (mHNSCC) mHNSCC - 2nd line (L2) mHNSCC - L2 - PDL1 positive

versus Standard of Care (SoC)
pembrolizumab alone vs. Standard of Care (SoC) 1 certainty unassessablestatistically conclusive-24%