Bayer Initiates Xofigo Combination Study - Analyst Blog NASDAQ The study will evaluate the effects of Xofigo in combination with Johnson & Johnson 's ( JNJ ) Zytiga (abiraterone acetate) and prednisone/prednisolone on symptomatic skeletal event-free survival. We note that Xofigo is already approved in the EU for ... Bayer HealthCare begins new prostate cancer drug trial |