Early morphological change for predicting outcome in metastatic colorectal cancer after regorafenib.

Related Articles

Early morphological change for predicting outcome in metastatic colorectal cancer after regorafenib.

Oncotarget. 2017 Dec 15;8(66):110530-110539

Authors: Arai H, Miyakawa K, Denda T, Mizukami T, Horie Y, Izawa N, Hirakawa M, Ogura T, Tsuda T, Sunakawa Y, Nakajima TE

Abstract
Background and Objective: It is unclear whether early morphological change (EMC) is a predictive marker for regorafenib in metastatic colorectal cancer (mCRC). Therefore, the present study investigated whether EMC can predict the outcome of mCRC patients receiving regorafenib.
Results: This study evaluated 68 patients. Among 52 patients with lung metastasis, 16 (31%) had cavity formation (CF). The median progression-free survival (PFS) and overall survival (OS) in patients with/without CF were 4.2/2.4 months (p<0.01) and 9.2/6.5 months (p=0.09), respectively. Among 45 patients with liver metastasis, 14 (31%) had active morphological response (MR). The median PFS and OS in patients with/without active MR were 5.3/2.4 months (p<0.01) and 13.6/6.9 months (p=0.02), respectively. Overall, 25 patients (37%) had EMC. The median PFS and OS in patients with/without EMC were 5.3/2.1 months (p<0.01) and 13.3/6.1 months (p<0.01), respectively.
Materials and Methods: This retrospective study included mCRC patients with lung and/or liver metastases receiving regorafenib. CF in lung metastasis and MR in liver metastasis were evaluated at the first post-treatment computed tomography scan. EMC was determined as CF and/or active MR. We compared PFS and OS between patients with and those without EMC.
Conclusions: EMC could be a useful predictive marker for regorafenib in mCRC.

PMID: 29299166 [PubMed]

http://ift.tt/2quvgxt