Study of SyB L-0501 in Combination With Rituximab to Treat Relapsed/Refractory Diffuse Large B-Cell Lymphoma

"The administration of SyB L-0501 at 120 mg/m\^2/day by intravenous infusion on day 2 and 3 of each 21-day cycle with up to 6 cycles. Dose modifications are permitted from 2nd cycle according to dose reduction schedule.~SyB L-0501 60 mg/m\^2, 90 mg/m\^2 or 120 mg/m\^2/day on Day 2 and Day 3 will be followed by 18 days of observation."

The administration of rituximab at 375 mg/m\^2/day by intravenous infusion on day 1 of each 21-day cycle with up to 6 cycles. Dose modifications are not permitted.