Sentence: Between Oct 24 , 2016 , and Jan 24 , 2018 , 861 patients were randomly assigned to receive pembrolizumab plus axitinib ( n=432 ) or sunitinib monotherapy ( n=429 ) .
Drug combination annotation:
[{'class': 'POS', 'spans': ['pembrolizumab', 'axitinib'], 'is_context_needed': True}]