O6-benzylguanine and BCNU in multiple myeloma: a phase II trial

Purpose Carmustine (BCNU) is known to have modest activity in multiple myeloma; however, resistance to BCNU manifests by the activity of O6-methylguanine methyltransferase (MGMT). The objective of this study was to determine the safety and efficacy of depletion of MGMT activity in plasma cells using O6-benzylguanine (O6-BG) with BCNU in patients with multiple myeloma.