期刊
JOURNAL OF CLINICAL ONCOLOGY
卷 24, 期 29, 页码 4738-4745出版社
AMER SOC CLINICAL ONCOLOGY
DOI: 10.1200/JCO.2006.06.0483
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Purpose Chemotherapy resistance in melanoma has been linked to antiapoptotic effects mediated by Bcl-2 protein. We evaluated whether targeting Bcl-2 using an antisense oligonucleotide (oblimersen sodium) could improve the efficacy of systemic chemotherapy in patients with advanced melanoma. Patients and Methods We randomly assigned chemotherapy-naive patients with advanced melanoma to treatment with dacarbazine ( 1,000 mg/m(2)) alone or preceded by a 5-day continuous intravenous infusion of oblimersen sodium ( 7 mg/kg/d) every 3 weeks for up to eight cycles. Patients were stratified by Eastern Cooperative Oncology Group performance status, liver metastases, disease site, and serum lactate dehydrogenase (LDH). The primary efficacy end point was overall survival. Results Among 771 patients randomly assigned, the addition of oblimersen to dacarbazine yielded a trend toward improved survival at 24-month minimum follow-up ( median, 9.0 v 7.8 months; P =.077) and significant increases in progression-free survival ( median, 2.6 v 1.6 months; P <.001), overall response ( 13.5% v 7.5%; P =.007), complete response (2.8% v 0.8%), and durable response (7.3% v 3.6%; P =.03). A significant interaction between baseline serum LDH and treatment was observed; oblimersen significantly increased survival in patients whose baseline serum LDH was not elevated ( median overall survival, 11.4 v 9.7 months; P =.02). Neutropenia and thrombocytopenia were increased in the oblimersen-dacarbazine group; however, there was no increase in serious infections or bleeding events. Conclusion The addition of oblimersen to dacarbazine significantly improved multiple clinical outcomes in patients with advanced melanoma and increased overall survival in patients without an elevated baseline serum LDH.
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