SAN FRANCISCO: SAN FRANCISCO, Feb. 14, 2022 /PRNewswire/ -- The Janssen Pharmaceutical Companies of Johnson & Johnson today announced initial results from the Phase 3 MAGNITUDE study evaluating the investigational use of niraparib, a selective poly-ADP ribose polymerase (PARP) inhibitor, in combination with abiraterone acetate plus prednisone in patients with...