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Ann Oncol ; 24(1): 257-63, 2013 Jan.
Article in English | MEDLINE | ID: mdl-22910841

ABSTRACT

BACKGROUND: To determine efficacy and safety of bevacizumab, a recombinant humanized antibody against vascular endothelial growth factor (VEGF), in the treatment of metastatic or locally advanced angiosarcoma and epithelioid hemangioendotheliomas. PATIENTS AND METHODS: In this single-arm phase II trial, 32 patients were enrolled and they received bevacizumab 15 mg/kg IV infusion in 21-day cycles. Patients had disease that was deemed not surgically resectable, Eastern Cooperative Oncology Group (ECOG) performance status of ≤1, adequate organ function and had not received any radiation treatment in the last 28 days. RESULTS: Of the 30 patients evaluated for efficacy and toxic effect, four (two angiosarcoma and two epithelioid hemangioendothelioma; 17%) had a partial response. Fifteen patients (11 angiosarcoma and 4 epithelioid hemangioendothelioma; 50%) showed stable disease with a mean time to progression of 26 weeks. Bevacizumab was well tolerated with only one grade 4 adverse event. Expected known toxic effects of the drug were manageable. CONCLUSION: Bevacizumab is an effective and well-tolerated treatment for metastatic or locally advanced angiosarcoma and epithelioid hemangioendotheliomas. Further phase III studies of bevacizumab in combination with other chemotherapeutic agents and/or radiation treatment are warranted.


Subject(s)
Antibodies, Monoclonal, Humanized/therapeutic use , Antineoplastic Agents/therapeutic use , Hemangioendothelioma, Epithelioid/drug therapy , Hemangiosarcoma/drug therapy , Adolescent , Adult , Aged , Aged, 80 and over , Bevacizumab , Female , Humans , Male , Middle Aged , Survival Analysis , Treatment Outcome , Young Adult
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