Publikation
The Price of Tumor Control: An Analysis of Rare Side Effects of Anti-CTLA-4 Therapy in Metastatic Melanoma from the Ipilimumab Network
Wissenschaftlicher Artikel/Review - 14.01.2013
Voskens Caroline J, Mateus Christine, Mohr Peter, Paetzold Sylvie, Satzger Imke, Schadendorf Dirk, Schlaeppi Marc, Schuler Gerold, Schuler-Thurner Beatrice, Trefzer Uwe, Ulrich Jens, Vaubel Julia, von Moos Roger, Weder Patrik, Wilhelm Tabea, Göppner Daniela, Dummer Reinhard, Klein Christina, Keller Ullrich, Goldinger Simone M, Loquai Carmen, Robert Caroline, Kaehler Katharina C, Berking Carola, Bergmann Tanja, Bockmeyer Clemens L, Eigentler Thomas, Fluck Michael, Garbe Claus, Gutzmer Ralf, Grabbe Stephan, Hauschild Axel, Hein Rüdiger, Hundorfean Gheorghe, Justich Armin, Heinzerling Lucie M
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BACKGROUND
Ipilimumab, a cytotoxic T-lymphocyte antigen-4 (CTLA-4) blocking antibody, has been approved for the treatment of metastatic melanoma and induces adverse events (AE) in up to 64% of patients. Treatment algorithms for the management of common ipilimumab-induced AEs have lead to a reduction of morbidity, e.g. due to bowel perforations. However, the spectrum of less common AEs is expanding as ipilimumab is increasingly applied. Stringent recognition and management of AEs will reduce drug-induced morbidity and costs, and thus, positively impact the cost-benefit ratio of the drug. To facilitate timely identification and adequate management data on rare AEs were analyzed at 19 skin cancer centers.
METHODS AND FINDINGS
Patient files (n = 752) were screened for rare ipilimumab-associated AEs. A total of 120 AEs, some of which were life-threatening or even fatal, were reported and summarized by organ system describing the most instructive cases in detail. Previously unreported AEs like drug rash with eosinophilia and systemic symptoms (DRESS), granulomatous inflammation of the central nervous system, and aseptic meningitis, were documented. Obstacles included patientś delay in reporting symptoms and the differentiation of steroid-induced from ipilimumab-induced AEs under steroid treatment. Importantly, response rate was high in this patient population with tumor regression in 30.9% and a tumor control rate of 61.8% in stage IV melanoma patients despite the fact that some patients received only two of four recommended ipilimumab infusions. This suggests that ipilimumab-induced antitumor responses can have an early onset and that severe autoimmune reactions may reflect overtreatment.
CONCLUSION
The wide spectrum of ipilimumab-induced AEs demands doctor and patient awareness to reduce morbidity and treatment costs and true ipilimumab success is dictated by both objective tumor responses and controlling severe side effects.