Advances of Targeted Therapy in Treatment of Unresectable Metastatic Colorectal Cancer

Despite being one of the most frequently diagnosed cancers worldwide, prognosis of metastatic colorectal cancer (CRC) was poor. Development and introduction of biologic agents in treatment of patients with metastatic CRC have brought improved outcomes. Monoclonal antibodies directing epidermal growt...

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Main Authors: Lee, Suk-young, Oh, Sang Cheul
Format: Online
Language:English
Published: Hindawi Publishing Corporation 2016
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4835624/
id pubmed-4835624
recordtype oai_dc
spelling pubmed-48356242016-04-28 Advances of Targeted Therapy in Treatment of Unresectable Metastatic Colorectal Cancer Lee, Suk-young Oh, Sang Cheul Review Article Despite being one of the most frequently diagnosed cancers worldwide, prognosis of metastatic colorectal cancer (CRC) was poor. Development and introduction of biologic agents in treatment of patients with metastatic CRC have brought improved outcomes. Monoclonal antibodies directing epidermal growth factor receptors and vascular endothelial growth factor are main biologic agents currently used in treatment of metastatic CRC. Encouraged by results from many clinical trials demonstrating efficacy of those monoclonal antibodies, the combination therapy with those targeted agents and conventional chemotherapeutic agents has been established as the standard therapy for patients with metastatic CRC. However, emergency of resistance to those target agents has limited the efficacy of treatment, and strategies to overcome the resistance are now being investigated by newly developed biological techniques clarifying how to acquire resistance. Here, we introduce mechanisms of action of the biologic agents currently used for treatment of metastatic CRC and several landmark historical clinical studies which have changed the main stream of treatment. The mechanism of resistance to those agents, one of serious problems in treatment metastatic CRC, and ongoing clinical trials to overcome the limitations and improve treatment outcomes will also be presented in this review. Hindawi Publishing Corporation 2016 2016-04-05 /pmc/articles/PMC4835624/ /pubmed/27127793 http://dx.doi.org/10.1155/2016/7590245 Text en Copyright © 2016 S.-y. Lee and S. C. Oh. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Lee, Suk-young
Oh, Sang Cheul
spellingShingle Lee, Suk-young
Oh, Sang Cheul
Advances of Targeted Therapy in Treatment of Unresectable Metastatic Colorectal Cancer
author_facet Lee, Suk-young
Oh, Sang Cheul
author_sort Lee, Suk-young
title Advances of Targeted Therapy in Treatment of Unresectable Metastatic Colorectal Cancer
title_short Advances of Targeted Therapy in Treatment of Unresectable Metastatic Colorectal Cancer
title_full Advances of Targeted Therapy in Treatment of Unresectable Metastatic Colorectal Cancer
title_fullStr Advances of Targeted Therapy in Treatment of Unresectable Metastatic Colorectal Cancer
title_full_unstemmed Advances of Targeted Therapy in Treatment of Unresectable Metastatic Colorectal Cancer
title_sort advances of targeted therapy in treatment of unresectable metastatic colorectal cancer
description Despite being one of the most frequently diagnosed cancers worldwide, prognosis of metastatic colorectal cancer (CRC) was poor. Development and introduction of biologic agents in treatment of patients with metastatic CRC have brought improved outcomes. Monoclonal antibodies directing epidermal growth factor receptors and vascular endothelial growth factor are main biologic agents currently used in treatment of metastatic CRC. Encouraged by results from many clinical trials demonstrating efficacy of those monoclonal antibodies, the combination therapy with those targeted agents and conventional chemotherapeutic agents has been established as the standard therapy for patients with metastatic CRC. However, emergency of resistance to those target agents has limited the efficacy of treatment, and strategies to overcome the resistance are now being investigated by newly developed biological techniques clarifying how to acquire resistance. Here, we introduce mechanisms of action of the biologic agents currently used for treatment of metastatic CRC and several landmark historical clinical studies which have changed the main stream of treatment. The mechanism of resistance to those agents, one of serious problems in treatment metastatic CRC, and ongoing clinical trials to overcome the limitations and improve treatment outcomes will also be presented in this review.
publisher Hindawi Publishing Corporation
publishDate 2016
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4835624/
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