- Recovery from ≥ grade 2 toxicities of prior therapy regimen to grade 1 or baseline, with the exception of anemia and lymphopenia and chronic residual toxicities that in the opinion of the investigator are not clinically relevant given the known safety/toxicity profiles of gemicitabine, sorafenib, and vorinostat (eg, alopecia, changes in pigmentation, stable endocrinopathies). Patients with ≤ grade 2 peripheral sensory or motor neuropathy are eligible..