pembrolizumab
merck
['kn789']
great to finally see the kn789 data. negative for pfs(ia) and os (final)as expected, but near miss for pfs not os. negative, all the same. q is which subsets may benefit no signal in multivariable. am not convinced pdl1 is predictive in data shown #asco23 
Thoracic Oncologist @royalmarsdenNHS, Professor @ICR_London; Chair @BTOGorg; views are my own.