I'm sure he is still on Leronlimab at 700mg (I was told this, last, at the beginning of the year). I do not know about a PD-L1 inhibitor. If I had to guess, I would say no. If, for no other reason than I have not seen it used in other cases that I have followed. I have not heard of either any biomarkers or any other information, beyond what his family is willing to share.