Clinical data have supported the combination of subcutaneous r-interleukin-2 (rIL-2) and r-interferon-alpha (rIFN-alpha) as a promising combination for advanced renal cell carcinoma (RCC), with a reduced toxicity. We evaluated the activity and safety of this outpatient immunotherapy and report on the clinical results and the long-term survival analysis. Objective responses was observed in 9 of 50 (18%) patients, 6 of whom (12%) achieved a complete response. Overall median survival is 12 months, six patients were surviving at a median follow-up of 24 months, and three (6%) are still progression-free.

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