The purpose of this study is to find out whether delivering SBRT to the prostate, combined with the study drug atezolizumab, is a safe and effective treatment when given in combination with abiraterone, prednisone, and Lupron (the standard treatment for this disease). In addition, the researchers want to find out whether the study treatment works better…
The study involves research about MGA271 in combination with Keytruda. MGA271 targets cancer cells that make a lot of a protein called B7-H3. Another way to say it is that the cells "overexpress" the protein. Very few normal cells express B7-H3. MGA271 is though to work by recognizing cancer cells that overexpress B7-H3 and directing the body's immune…