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Τρίτη 12 Φεβρουαρίου 2019

Recent success and limitations of immune checkpoint inhibitors for cancer: a lesson from melanoma

Abstract

Several researches have been carried over the last few decades to understand of how cancer evades the immune system and thus to identify therapies that could directly act on patient's immune system in the way of restore or induce a response to cancer. As a consequence, "cancer immunotherapy" is conquering predominantly the modern scenario of the fight against cancer. The recent clinical success of immune checkpoint inhibitors (ICIs) has created an entire new class of anti-cancer drugs and restored interest in the field of immuno-oncology, leading to regulatory approvals of several agents for the treatment of a variety of malignancies. The first to be approved in 2011 was the anti-CTLA-4 antibody ipilimumab for the treatment of unresectable or metastatic melanoma. Subsequently, the anti-PD-1s, nivolumab and pembrolizumab, received regulatory approvals for the treatment of melanoma and several other cancers. More recently, three anti-PD-L1 antibodies have received approval: atezolizumab and durvalumab for locally advanced or metastatic urothelial carcinoma and metastatic non-small cell lung cancer (NSCLC) and avelumab for the treatment of locally advanced or metastatic urothelial carcinoma and metastatic Merkel cell carcinoma. This review, starting from the results of melanoma trials, highlights in turn different ICIs and data for different indications in several malignancies are included under each drug class.



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