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Regorafenib for Metastatic Colorectal Cancer: An Analysis of a Registry-Based Cohort of 555 Patients

Authors Novakova-Jiresova A, Kopeckova K, Boublikova L, Chloupkova R, Melichar B, Petruzelka L, Finek J, Fiala O, Grell P, Batko S, Linke Z, Kiss I, Prausova J, Buchler T

Received 24 March 2020

Accepted for publication 12 June 2020

Published 3 July 2020 Volume 2020:12 Pages 5365—5372


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Chien-Feng Li

Alena Novakova-Jiresova,1 Katerina Kopeckova,2 Ludmila Boublikova,1 Renata Chloupkova,3 Bohuslav Melichar,4 Lubos Petruzelka,5 Jindrich Finek,6 Ondrej Fiala,6,7 Peter Grell,8 Stanislav Batko,2 Zdenek Linke,2 Igor Kiss,8 Jana Prausova,2 Tomas Buchler1

1Department of Oncology, First Faculty of Medicine and Thomayer Hospital, Charles University, Prague, Czech Republic; 2Department of Oncology, University Hospital in Motol, Charles University, Prague, Czech Republic; 3Institute of Biostatistics and Analysis, Faculty of Medicine, Masaryk University, Brno, Czech Republic; 4Department of Oncology, Palacky University Medical and Teaching Hospital, Olomouc, Czech Republic; 5Department of Oncology, General Faculty Hospital, Charles University, Prague, Czech Republic; 6Department of Oncology and Radiotherapy, Medical School and University Hospital in Pilsen, Charles University, Pilsen, Czech Republic; 7Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic; 8Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Brno, Czech Republic

Correspondence: Tomas Buchler
Department of Oncology, First Faculty of Medicine and Thomayer Hospital, Charles University, Videnska 800, Prague 140 59, Czech Republic
Tel +420-261-082-637
Fax +420-261-082-522

Purpose: Regorafenib is an oral multikinase inhibitor approved for the therapy of previously treated metastatic colorectal carcinoma (mCRC). The aim of the present study was to analyze the outcomes of treatment with regorafenib in real-world clinical practice based on data from a national registry.
Methods: The CORECT registry, the Czech non-interventional database of patients with mCRC treated with targeted agents, searched for patients with metastatic CRC treated with regorafenib. In total, 555 evaluable patients were identified.
Results: The median age at diagnosis was 61.7 years. All patients had disease progression on or after previous systemic treatment. Most patients were treated with an initial dose of 160 mg daily (n = 463; 83.6%). The median duration of treatment was 2.7 months (range 0.0– 23.4 months). By the data cut-off date, 472 patients (85%) had completed treatment with regorafenib and were evaluable for treatment response evaluation. Partial response was reported in 13 patients (2.8%) and disease stabilization in 130 patients (27.5%). Median progression-free survival (PFS) and overall survival (OS) were 3.5 months (95% confidence interval [CI] 3.2– 3.7 months) and 9.3 months (95% CI 8.3– 10.3 months), respectively. The 6-month OS rate was 67.7% (95% CI 63.4– 72.1%). Multivariable analysis showed that female gender, longer interval from diagnosis of metastatic disease, M0 stage at diagnosis, and Eastern Cooperative Oncology Group performance status (ECOG PS) 0 were associated with longer PFS, while higher body-mass index (BMI), longer interval from diagnosis of metastatic disease, and ECOG PS of 0 were associated with longer OS.
Conclusion: OS of patients treated with regorafenib in the real-world clinical practice in this cohort exceeded that reported in randomized trials. Regorafenib is a safe and active treatment option for a subgroup of patients with mCRC who are progressing after other systemic therapies and maintain good performance status.

Keywords: colorectal cancer, regorafenib, registry, survival, outcome analysis

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