Sentence: In transplant eligible patients , induction therapy consists of bortezomib , lenalidomide , dexamethasone ( VRd ) given for approximately 3 - 4 cycles followed by autologous stem cell transplantation ( ASCT ) .
Drug combination annotation:
[{'class': 'POS', 'spans': ['bortezomib', 'lenalidomide', 'dexamethasone'], 'is_context_needed': True}]