Long-Lasting Complete Remission of Pulmonary Metastases Consequent to Renal Cell Carcinoma Obtained with Interferon- β Therapy: Review of the Literature and a Case Report

This case report describes a complete remission of pulmonary metastases, consequent to renal cancer, achieved with interferon-β therapy. After nephrectomy (July 1990), this female patient was proposed for therapeutic assessment: vinblastine chemotherapy was carried out for 10 cycles, whereas concomitant immunotherapy of interferon-α was discontinued after 30 days owing to lack of tolerability. In replacement, interferon-β administration from the 5th cycle of chemotherapy at the dose of 3 MIU 3 times a week was well tolerated. Interferon-β was interrupted 27 months later, due to an increase in transaminase levels. Partial remission of pulmonary metastases was assessed after 9 months of interferon-β therapy, and a complete remission was assessed after 1 and 2 years of therapy. In November 1994, the patient was still in good clinical conditions and disease-free after 37 months from the achievement of complete remission.