RE:Dr. Black article on Phase 2 Trial of AtezolizumabCombo therapies should normally always yield better results, however they will probably be used only after a good single agent fails. Simplicity first. N- 803 was deemed futile when used alone and hence had v low efficacy. Only when used in combination with BCG did CR hit about 42% at 12 months. We are practically there as a stand alone. Eventually Ruvidar can be used in combos with other drugs for failed cases IMHO.