Bevacizumab Plus Vinorelbine in Treating Patients With Stage IV Breast Cancer

Inclusion Criteria: Histologically or cytologically confirmed stage IV breast cancer Patients without pathologic or cytologic confirmation of metastatic disease must have unequivocal evidence of metastasis by physical exam or radiologic study Must meet 1 of the following criteria: Received 1 or 2 prior conventional chemotherapy regimens for metastatic disease Relapsed within 1 year after adjuvant chemotherapy and no prior chemotherapy for metastatic disease At least 1 unidimensionally measurable lesion, meeting 1 of the following criteria: At least 20 mm by conventional techniques At least 10 mm by spiral CT scan No CNS metastases by CT scan or MRI within the past 6 weeks No prior or concurrent primary CNS tumor on physical exam Disease progression after bone marrow or peripheral blood stem cell transplantation allowed HER2-positive tumors allowed if previously treated with trastuzumab (Herceptin) Hormone receptor status: Not specified Male or female Performance status - ECOG 0-2 Performance status - Karnofsky 60-100% More than 3 months Absolute neutrophil count at least 1,500/mm^3 Hemoglobin at least 9 g/dL Platelet count at least 100,000/mm^3 No prior bleeding diathesis or coagulopathy Bilirubin no greater than 1.5 times upper limit of normal (ULN) AST/ALT no greater than 2.5 times ULN INR no greater than 1.5 Creatinine less than 2 mg/dL Urine protein no greater than +1 by dipstick Urine protein less than 500 mg by 24-hour urine collection LVEF at least 50% No prior stroke No New York Heart Association class II-IV congestive heart failure No serious cardiac arrhythmia requiring medication, including atrial fibrillation requiring systemic anticoagulation No grade II or greater peripheral vascular disease within the past year No clinically significant peripheral artery disease No deep vein thrombosis or embolism within the past 5 years No arterial thromboembolic event within the past 6 months, including any of the following: Transient ischemic attack Cerebrovascular accident Unstable angina Myocardial infarction No other significant cardiovascular disease Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception No evidence of seizures not controlled with standard medical therapy No prior allergic reactions attributed to compounds of similar chemical or biologic composition to bevacizumab or other agents used in the study Prior mild infusion reaction to trastuzumab allowed No serious non-healing wound, ulcer, or bone fracture No significant traumatic injury within the past 4 weeks No other concurrent illness (such as active infection) that would require active treatment or preclude study No psychiatric illness or social situation that would preclude study See Disease Characteristics No prior bevacizumab No other prior experimental angiogenesis inhibitors At least 2 weeks since prior trastuzumab and recovered Concurrent epoetin alfa or filgrastim (G-CSF) allowed See Disease Characteristics At least 2 weeks since prior chemotherapy and recovered No prior vinorelbine No more than 2 prior conventional chemotherapy regimens for metastatic breast cancer Prior hormonal therapy allowed At least 1 week since prior radiotherapy and recovered No concurrent radiotherapy At least 4 weeks since prior major surgical procedure or open biopsy At least 1 week since prior fine-needle aspiration except in the breast No concurrent major surgical procedure Recovered from the toxic effects of any prior therapy At least 10 days since prior oral or parenteral anticoagulants (e.g., heparin or warfarin) except to maintain the patency of permanent, indwelling central venous catheter At least 10 days since prior thrombolytic agents No chronic aspirin therapy greater than 325 mg per day or non-steroidal anti-inflammatory medications that inhibit platelet function No concurrent COX-2 inhibitors that inhibit platelet function No other concurrent investigational or commercial agents or therapies for the malignancy No concurrent antiretroviral therapy for HIV-positive patients No concurrent ketoconazole, zidovudine, or macrolide antibiotics No concurrent oral or parenteral anticoagulants except to maintain patency of permanent, indwelling central venous catheter No concurrent thrombolytic agent Concurrent bisphosphonates allowed Concurrent celecoxib or rofecoxib allowed