Catherine, PD1 long term results? Home › Forums › Melanoma Diagnosis: Stage IV › Catherine, PD1 long term results? This topic is empty. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts June 23, 2014 at 3:34 pm #22049 cherisParticipant Ipi has data showing success for a small percentage of patients for 9-10 years. How long does the PD1 have data for and the corresponding success rate? Thank you for keeping us so informed. Cheris June 23, 2014 at 9:24 pm #64749 Catherine PooleKeymaster No, the data for PD1 doesn’t extend that far. I’ve heard of 2 years so far. It just hasn’t been around being tested that long, unless someone else has some other information, I’d love to know. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Melanoma Diagnosis: Stage IV’ is closed to new topics and replies.