Sentence: Our results show meaningful activity of T-DM1 after front-line pertuzumab plus trastuzumab and a taxane , with about 27 % of patients having an objective response and 40 % of patients achieving durable disease control .
Drug combination annotation:
[{'class': 'POS', 'spans': ['pertuzumab', 'trastuzumab'], 'is_context_needed': False}]