(UroToday.com) In the Proffered Paper session of the European Society for Medical Oncology (ESMO) Annual Congress focusing on non-prostate cancer genitourinary tumors, Dr. Sadeghi presented a phase II trial of the combination of pembrolizumab (P) and sEphB4-HSA (B4) in patients previously treated for metastatic urothelial carcinoma (mUC).