Phase I Study of Bevacizumab and Sorafenib Combined with Low Dose Cyclophosphamide in Patients with Refractory Solid Tumors and Leukemia. Patients with solid tumors (including central nervous tumors) that are recurrent or refractory to standard therapy, or for whom standard therapy is not available. Once a maximum tolerated dose (MTD) has been established in patients with recurrent or refractory solid tumors, the tolerability of this dose will be tested in a maximum of 6 patients, in cohorts of 3, with refractory or recurrent leukemia and a maximum of 24 evaluable patients, in cohorts of 6, with refractory or recurrent solid tumors.~Approximately 21-24 patients with refractory solid tumors to define the maximum tolerated dose (MTD) and 6 patients with recurrent or refractory leukemia,12 patients with refractory or recurrent bone or soft tissue sarcomas and 12 patients with other refractory or recurrent solid tumors (including lymphomas) to test the tolerability of this MTD in patients with hematological malignancies. Bevacizumab will be administered intravenously at a starting dose of 5 mg/kg every 3 weeks with sorafenib by mouth every 12 hrs at a starting dose of 90 mg/m2 every 12 hours and cyclophosphamide by mouth daily at a dose of 50 mg/m2/day (dose level 1). A course of therapy will be considered to be of 21 days duration. Once a maximum tolerated dose of sorafenib (sMTD) in combination with bevacizumab and cyclophosphamide has been determined, 6 patients with recurrent or refractory leukemia will be then be evaluated at the solid tumor MTD to test the tolerability of this combination in patients with hematological malignancies.
Phase I Study of Bevacizumab and Sorafenib Combined with Low Dose Cyclophosphamide in Patients with Refractory Solid Tumors and Leukemia. Patients with solid tumors (including central nervous tumors) that are recurrent or refractory to standard therapy, or for whom standard therapy is not available. Once a maximum tolerated dose (MTD) has been established in patients with recurrent or refractory solid tumors, the tolerability of this dose will be tested in patients with refractory or recurrent leukemia and an expanded cohort of patients with refractory or recurrent solid tumors.