“… 11 , 25 Promising results of anti-HER2 therapies prompted further investigation of their efficacy in patients with BM. 11 , 25 The HER2CLIMB was the first randomized CT to include heavily pretreated patients with active BMs. 26 The study evaluated the combination of tucatinib, an oral tyrosine kinase inhibitor, with trastuzumab and capecitabine in 198 patients with metastatic BC compared with placebo plus trastuzumab and capecitabine in 93 patients.…”