Irinotecan-based regimens for recurrent glioblastoma multiforme: [corrected] a systematic review

This systematic review aims to assess irinotecan-based salvage regimens for patients with recurrent glioblastoma multiforme (GBM) beyond first line treatment. Eligible trials were identified using databases search and 25 studies were included in the final analysis. Among the 25 studies, PFS-6 rate was reported in 15 studies and it ranged from 16% to 63%. Median PFS was reported in 18 studies and it ranged from 1 to 7.6 months. While for median OS, it was reported in 17 studies and it ranged from 5.8 months to 17.9 months. The available data suggests that routine use of irinotecan-based salvage regimens cannot be recommended outside the setting of well-controlled prospective randomized studies investigating novel combinations of irinotecan.