%0 Clinical Trial, Phase I %T Radiation Therapy Followed by Intrathecal Trastuzumab-Pertuzumab for ERBB2-Positive Breast Leptomeningeal Disease: A Phase 1 Nonrandomized Controlled Trial. %A Ahmed KA %A Kumthekar PU %A Pina Y %A Kim Y %A Vogelbaum MA %A Han HS %A Forsyth PA %J JAMA Oncol %V 10 %N 7 %D 2024 Jul 1 %M 38780965 %F 33.006 %R 10.1001/jamaoncol.2024.1299 %X This nonrandomized controlled trial examines the safety of radiation therapy (RT) followed by intrathecal trastuzumab and pertuzumab for patients with ERBB2-positive breast leptomeningeal disease (LMD).