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Case report of a KIT-mutated melanoma patient with an excellent response to apatinib and temozolomide combination therapy

Authors Luo C, Shen JY, Ying J, Fang XH, Wang XH, Fu ZX, Liu P

Received 14 July 2017

Accepted for publication 26 August 2017

Published 14 September 2017 Volume 2017:10 Pages 4553—4557


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Amy Norman

Peer reviewer comments 2

Editor who approved publication: Dr Yao Dai

Cong Luo,1 Jiayu Shen,2 Jieer Ying,1 Xianhua Fang,3 Xiaohong Wang,1 Zhixuan Fu,4 Peng Liu5

1Department of Abdominal Oncology, Zhejiang Cancer Hospital, 2The Second Clinical Medical College, Zhejiang Chinese Medical University, 3Department of Pathology, 4Department of Colorectal Surgery, 5Department of Radiotherapy, Zhejiang Cancer Hospital, Hangzhou, People’s Republic of China

Abstract: Malignant melanoma is one kind of malignant disease which has high rates of mortality, metastasis, and poor prognosis. The therapeutic landscape is rapidly changing with the development of novel agents in recent decades, such as anti-PD-1 agents, anti-CTLA-4 agents, and BRAF inhibitors. However, since most of these novel agents are very expensive, not all patients can afford them. Apatinib is a novel oral small-molecule tyrosine kinase inhibitor targeting the intracellular domain of vascular endothelial growth factor receptor 2 (VEGFR-2) and may also be effective on Ret, c-KIT, and c-src. Temozolomide (TMZ) is a second-generation alkylating agent and a cytotoxic drug for melanoma treatment. In this work, we reported a case of metastatic melanoma with an excellent response to apatinib/TMZ combination therapy with progression-free survival for more than one year. This patient showed high expression of CD117, VEGFR-3, and KIT mutation in exon 11, suggesting that apatinib may induce clinical response via inhibiting VEGFR and c-KIT. Apatinib/TMZ combination therapy could be a new option for the treatment of advanced melanoma with KIT mutation.

Keywords: advanced melanoma, KIT mutation, apatinib, temozolomide, combination therapy

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