Sentence: Second-line treatments consisted of cetuximab plus irinotecan for arm A , and oxaliplatin plus either 5-fluorouracil ( FOLFOX ) or capecitabine ( CapeOX ) for the control arms .
Drug combination annotation:
[{'class': 'POS', 'spans': ['cetuximab', 'irinotecan'], 'is_context_needed': True}, {'class': 'POS', 'spans': [2, 3], 'is_context_needed': True}, {'class': 'POS', 'spans': [2, 4], 'is_context_needed': True}]