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The final analysis of the Phase 3 PROTEUS study met both primary endpoints, demonstrating that apalutamide plus ADT given perioperatively significantly improves pathologic complete response and metastasis-free survival versus ADT alone. These data support a potential new perioperative treatment paradigm for high-risk localized or locally advanced prostate cancer, with regulatory review not yet initiated.
Johnson & Johnson's Phase 3 prostate cancer study shows ERLEADA® (apalutamide) before and after surgery significantly reduces risk of metastasis or death, breaking a decades-long treatment paradigm Johnson & Johnson's Phase 3 prostate cancer study shows ERLEADA® (apalutamide) before and after surgery significantly reduces risk of metastasis or death, breaking a decades-long treatment paradigm News provided by Johnson & Johnson May 31, 2026, 08:27 ET Share this article Share to X Share this article Share to X Patients were nine times more likely to have little to no cancer remaining in the prostate after surgery, with a 20% reduction in the risk of developing metastasis or death Data selected to open the plenary presentation at ASCO 2026 and published in The New England Journa