TY - JOUR A1 - Voskens, Caroline J. A1 - Goldinger, Simone M. A1 - Loquai, Carmen A1 - Robert, Caroline A1 - Kähler, Katharina C. A1 - Berking, Carola A1 - Bergmann, Tanja Regina A1 - Bockmeyer, Clemens Luitpold A1 - Eigentler, Thomas Kurt A1 - Fluck, Michael A1 - Garbe, Claus A1 - Gutzmer, Ralf A1 - Grabbe, Stephan A1 - Hauschild, Axel A1 - Hein, Rüdiger A1 - Hundorfean, Gheorghe A1 - Justich, Armin A1 - Keller, Ullrich A1 - Klein, Christina A1 - Mateus, Christine A1 - Mohr, Peter A1 - Pätzold, Sylvie A1 - Satzger, Imke A1 - Schadendorf, Dirk A1 - Schlaeppi, Marc A1 - Schuler, Gerold A1 - Schuler-Thurner, Beatrice A1 - Trefzer, Uwe A1 - Ulrich, Jens A1 - Vaubel, Julia A1 - Moos, Roger von A1 - Weder, Patrik A1 - Wilhelm, Tabea A1 - Göppner, Daniela A1 - Dummer, Reinhard A1 - Heinzerling, Lucie T1 - The price of tumor control: an analysis of rare side effects of anti-CTLA-4 therapy in metastatic melanoma from the ipilimumab network T2 - PLoS One N2 - 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. Y1 - 2013 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/28370 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-283704 SN - 1932-6203 N1 - Copyright: © 2013 Voskens et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. VL - 8 IS - (1): e53745 PB - PLoS CY - Lawrence, Kan. ER -