Vorinostat in Combination With Bortezomib, Doxorubicin and Dexamethasone (VBDD) in Patients With Refractory or Relapsed Multiple Myeloma (MM)

"Vorinostat 100 mg/d p.o., on day 1-4, 8-11, and 15-18 /28 day treatment cycle in combination with BDD.~The dose level of Vorinostat will be escalated in each new cohort:~if no dose limiting toxicity (DLT) has been observed in the previous dose level in 3 patient, the second cohort of 3 new patients will be treated with Vorinostat 200 mg/d p.o. and the third cohort will be given Vorinostat with 300 mg/d p.o."

1.3mg/m2 (days 1,8,15)/28 day treatment cycle, i.v., for max. 6 treatment cycles

18mg/m2 i.v. (days 1 and 8)/ 28 day treatment cycle, max. 6 treatment cycles

40mg abs. p.o. (days 1,8,15,22) 1st treatment cycle, 20mg abs. p.o.(days 1,8,15,22) 2-6 treatment cycles