In a per-protocol analysis with @ patients in RICOVER-noRTh excluded for receiving unplanned RT , multivariable analysis revealed HRs of @ ( @ % CI , @ to @ ; P = @ ) for EFS , @ ( @ % CI , @ to @ ; P = @ ) for PFS , and @ ( @ % CI , @ to @ ; P = @ ) for OS for patients not receiving RT to bulky disease .