Phase I/II Study of SU11248 (Sutent) in Combination With Metronomic Dosing of Cyclophosphamide and Methotrexate in Patients With Metastatic Breast Cancer

Maximum Tolerated Dose of Sunitinib (Phase I)

时间窗: 8 weeks

Patients in each cohort were followed for DLT for at least 8 weeks (2 week lead-in with sunitinib and 6 weeks of treatment with sunitinib and metronomic cyclophosphamide and methotrexate) before opening accrual to the next dose level. Dose limiting toxicity (DLT) defined as: 1) ≥ grade 3 anemia that does not resolve with appropriate growth factors afebrile grade 4 neutropenia that does not resolve with growth factor support after ≥ 7 days 2) grade 4 neutropenia associated with fever (1 reading of oral temperature \> 38.5 degrees Celsius or 3 readings of oral temperature \> 38.0 degrees Celsius in a 24 hour period) 3) ≥ grade 3 thrombocytopenia 4) ≥ grade 3 non-hematologic toxicities, except those that can be controlled to grade 2 or less with appropriate treatment. 5) Inability to resume treatment with any of the study medications within 14 days of stopping due to treatment related toxicity.

Patients With Progression-free Survival (PFS) Greater Than or Equal to 12 Weeks (Phase II)

时间窗: up to 12 weeks after treatment start date

Progression defined as: 25% increase or an increase of 10 sq. cm (whichever is smaller) in the sum of products of measurable lesions over smallest sum observed (over baseline if no decrease), or appearance of any lesion which had disappeared, or clear worsening of any evaluable disease, or appearance of any new lesion/site, or failure to return for evaluation due to deteriorating condition (unless deterioration is clearly unrelated to this cancer).