deaths (OS)

squamous - mNSCLC - L1 - all population metastatic/advanced NSCLC (mNSCLC) - 1st line (L1) squamous cell - mNSCLC - L1 squamous - mNSCLC - L1 - all population

versus placebo plus SoC
pembrolizumab plus SoC vs. placebo plus SoC 1 0.64 [0.49; 0.84], 1 RCT, I2=0% conclusive
unassessable degree of certainty