Overview Pyrotinib in Metastatic HER2 Non-amplified But HER2 Mutant Breast Cancer Status: Unknown status Trial end date: 2019-06-25 Target enrollment: Participant gender: Summary A Phase II Study of Pyrotinib in Metastatic HER2 Non-amplified But HER2 Mutant Breast Cancer Phase: Phase 2 Details Lead Sponsor: Peking Union Medical College