PD1 Trial update Home › Forums › Melanoma Diagnosis: Stage IV › PD1 Trial update This topic is empty. Viewing 1 post (of 1 total) Author Posts December 2, 2013 at 9:44 pm #21693 Catherine PooleKeymaster I’ve learned all ipi refractory (prior use of IPI) trials of PD1, Merck and BMS are closed. There are a few of the IPI naive still open. Hopefully new ones will pop up soon this month or next. Author Posts Viewing 1 post (of 1 total) The forum ‘Melanoma Diagnosis: Stage IV’ is closed to new topics and replies.