“Patients with pleural mesothelioma are usually diagnosed at an advanced stage, when the five year survival rate is only 12% and curative surgery is not an option,” said Dr. Lesley Seymour, Director of the Investigational New Drug program at CCTG, and Senior Investigator for IND.227. “The addition of pembrolizumab to platinum-pemetrexed in our study resulted in significantly improved overall survival, progression-free survival and objective response rates compared to platinum-pemetrexed alone, regardless of PD-L1 expression. This regimen represents a potential new treatment option for patients with advanced pleural mesothelioma.”