PDCD1 and pachyonychia congenita: A separate study of 30 PC patients that combined the anti-CSF1R antibody lacnotuzumab (MCS110) with the anti-PD-1 antibody spartalizumab (PDR001) resulted in one that experienced PR (continuing in the study for 346 days) and 2 that displayed durable SD (on the study for 328 and 319 days) [83].