Vorinostat in Combination With Chemotherapy in Relapsed/Refractory Solid Tumors and CNS Malignancies

This first cycle will be used to determine whether the patient can tolerate the chemotherapeutic backbone without developing a DLT. The baseline disease evaluation will be obtained following hematologic recovery from the first cycle of chemotherapy, after which combination therapy with vorinostat will be given in subsequent cycles (2-12) w/ modifications if needed. Vorinostat dose escalation in subsequent patient cohorts will occur based on DLT to determine a MTD.