Trial of Romidepsin and Bortezomib for Multiple Myeloma

"Bortezomib was administered at a dose of 1.0 mg/m\^2 as an intravenous (IV) push over 3 to 5 seconds twice weekly for 2 consecutive weeks (Days 1, 4, 8 and 11) of each 28-day cycle. On days that bortezomib and romidepsin were administered together, bortezomib was administered prior to the romidepsin infusion.~Patients were treated to a maximum response plus two additional cycles or a maximum of eight cycles."

Romidepsin initially was administered at a dose of 10 mg/m\^2 as a 1-hour intravenous (IV) infusion on Days 1, 8, and 15 of each 28-day cycle. Based on the occurrence of Grade 3 thrombocytopenia at this dose level, the dose was reduced by protocol amendment to 8 mg/m\^2.