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J Clin Oncol. 1999 Sep;17(9):2859-67.

Prospective randomized trial of interferon alfa-2a plus vinblastine versus vinblastine alone in patients with advanced renal cell cancer.

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  • 1Helsinki University Central Hospital, Helsinki, Finland. terttu.alakoski@tyks.fi

Abstract

PURPOSE:

The combination of interferon alfa-2a (IFNalpha2a) plus vinblastine (VLB) induces objective tumor responses in patients with advanced renal cell cancer. However, no prospective randomized trial has shown that this treatment prolongs overall survival. We compared overall survival after treatment with IFNalpha2a plus VLB versus VLB alone in patients with advanced renal cell cancer.

PATIENTS AND METHODS:

We prospectively randomized 160 patients with locally advanced or metastatic renal cell cancer to receive either VLB alone or IFNalpha2a plus VLB for 12 months or until progression of disease. In both groups, VLB was administered intravenously at 0.1 mg/kg every 3 weeks, and in the combination group IFNalpha2a was administered subcutaneously at 3 million units three times a week for 1 week, and 18 million units three times a week thereafter for the second and subsequent weeks. For patients unable totolerate IFNalpha2a at 18 million units per injection, the dose was reduced to 9 million units.

RESULTS:

Median survival was 67.6 weeks for the 79 patients receiving IFNalpha2a plus VLB and 37.8 weeks for the 81 patients treated with VLB (P =.0049). Overall response rates were 16. 5% for patients treated with IFNalpha2a plus VLB and 2.5% for patients treated with VLB alone (P =.0025). Treatment with the combination was associated with constitutional symptoms and abnormalities in laboratory parameters, but no toxic deaths were reported.

CONCLUSION:

The combination of IFNalpha2a plus VLB is superior to VLB alone in the treatment of patients with locally advanced or metastatic renal cell carcinoma. This is the first study to demonstrate that survival can be prolonged by using IFNalpha2a for these patients.

PMID:
10561363
DOI:
10.1200/jco.1999.17.9.2859
[PubMed - indexed for MEDLINE]
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