Long-term cure after complete resection and adjuvant immunotherapy for distant melanoma metastases
2012
8534 Background: In phase II trials, postoperative therapy with Canvaxin allogeneic melanoma cell vaccine plus Bacillus Calmette-Guerin (BCG) improved the survival of patients with stage IV melanoma. A multicenter, phase III placebo-controlled study was undertaken to investigate the vaccine’s efficacy. Methods: After complete resection of melanoma involving up to 5 distant sites, patients were randomized to treatment with BCG plus Canvaxin (BCG-Canvaxin) or BCG plus placebo (BCG-placebo). The primary endpoint was overall survival (OS); secondary endpoints were disease-free survival (DFS) and skin test responsiveness to the study agent. Results: Between May 1998 and April 2005, 496 patients were randomized. In April 2005, entry to the study was terminated due to low probability of demonstrating treatment differences. However, 256 patients from sites enrolled in a follow-up study were monitored until March 2010. Median OS and 5-year and 10-year rates of OS were 39.1 months, 43.3% and 33.3%, respectively, in...
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