As Professor of Medicine and Urology at Yale School of Medicine, Dr. Daniel P. Petrylak is a pioneer in the research and development of new drugs and treatments to fight prostate, bladder, kidney and testicular cancer. For patients fighting these types of cancers, Petrylak finds recent developments in the field of immunotherapy particularly promising. “Up until recently, bladder cancer had not seen any major advancement in more than 30 years,” he says. “Studies are ongoing, but interim results are exciting so far.”