So my Dad had been on Opdivo for a while, had a scan they felt they saw some pseudoprogression. His scan this week has shown new mets to his bone. My dad also has multiple myeloma but they are treating this new mets as if it is from the lung cancer. He is discontinuing Opdivo and they are starting the chemo drug Abraxzine next week. My dad has not responded well to previous chemo drugs, I know it affects everyone differently but looking for some experiences or knowledge regarding this chemo drug.