Mesothelioma News Excitement over new immunotherapy drugs By Mesothelioma News April 22, 2015 April 22, 2015 Mesothelioma News Patients with late-stage lung cancer face a grim prognosis. So do those with mesothelioma, a rare, incurable type of lung cancer usually caused by exposure to asbestos. Investigational personalized cellular therapy tolerated well by patients Penn Medicine: Immunotherapy drug pembrolizumab shows promise for mesothelioma patients