First patients dosed in phase 2 platform clinical trial testing Wednesday, June 01, 2022 Currently, the majority of ovarian cancers – upwards of 75 percent – are of the subtype “high grade serous carcinoma,” which is the type being treated in this phase 2 study. While most patients with this malignant ovarian cancer subtype initially respond to standard cytotoxic therapies, more than 80 percent will relapse and succumb to the disease within five years. New treatments are urgently needed for this deadliest of gynecological cancers, which is diagnosed in more than a quarter-million women worldwide each year according to World Health Organization estimates. This phase 2 trial titled, “Immunotherapy Platform Study in Platinum Resistant High Grade Serous Ovarian Cancer (IPROC)” (NCT04918186), is sponsored by CRI clinical partner the Canadian Cancer Trials Group (CCTG), and is open and actively recruiting patients to sites in Canada and, in the second half of 2022, will open sites in the United States. Overall, up to 60 patients are planned to be enrolled in this platform study with up to 40 patients in these two initial cohorts. “We are excited to move forward in partnership with CRI, OCRA, and our collaborators with this important study. IPROC’s innovative trial design means that we can accelerate the pace of discovery in understanding how to optimize immunotherapy for the treatment of patients diagnosed with ovarian cancer,” said CCTG study lead Helen MacKay, MBChB, B.Sc., MRCP, M.D.This clinical trial is using an adaptive platform study design that utilizes a single master protocol that allows for multiple treatments to be evaluated in different groups of patients, or cohorts, from the same patient population. Such a study design offers flexibility in that different treatments can be evaluated in different cohorts, treatment regimens can be modified between cohorts, and treatment selection criteria can be customized for a specific cohort. Find out more