Sentence: New agents , such as taxane , irinotecan and oxaliplatin , combined with old agents , such as cisplatin and 5-FU , are currently under evaluation to further improve treatment outcomes .
Drug combination annotation:
[{'class': 'COMB', 'spans': ['taxane', 'cisplatin', '5-FU'], 'is_context_needed': True}, {'class': 'COMB', 'spans': [0, 3, 4], 'is_context_needed': True}, {'class': 'COMB', 'spans': [1, 3, 4], 'is_context_needed': True}]