Overview Monitoring Early Response to Targeted Therapy in Stage IV HER2+ Breast Cancer Patients With Advanced PET/MR Imaging Status: Recruiting Trial end date: 2028-06-30 Target enrollment: Participant gender: Summary The purpose of the study is to see if a new group of imaging tests can help identify response to stage IV HER2+ breast cancer before treatment. Phase: Phase 1/Phase 2 Details Lead Sponsor: University of Alabama at Birmingham