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Published in: Trials 1/2016

Open Access 01-12-2016 | Study protocol

Lapatinib-capecitabine versus capecitabine alone as radiosensitizers in RAS wild-type resectable rectal cancer, an adaptive randomized phase II trial (LaRRC trial): study protocol for a randomized controlled trial

Authors: Nuno Sousa, Olga Sousa, Lúcio Lara Santos, Rui Henrique, Manuel R. Teixeira, Mário Dinis-Ribeiro, Armando Teixeira-Pinto

Published in: Trials | Issue 1/2016

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Abstract

Background

Preoperative radiochemotherapy followed by surgical removal of the rectum with total mesorectum excision is the preferred treatment option for stages II and III rectal cancer. However, development of metastatic disease is the main cause of death for these patients with 5-year disease-free survival rates of 56 %. Anti-epidermal growth factor receptor (EGFR) targeted therapy is effective in metastatic rectal cancer, and human epidermal growth factor receptor 2 (HER-2) signaling may mediate resistance to EGFR inhibitors. Moreover, preclinical data support a synergistic effect of EGFR inhibition with radiation therapy.

Methods/design

This Bayesian phase II trial with adaptive randomization was designed to assess the efficacy of adding lapatinib, a dual inhibitor of EGFR and HER-2, to standard radiochemotherapy with capecitabine in stages II and III rectal cancer.

Discussion

The results of this trial will provide evidence of the feasibility and efficacy of the combination of lapatinib-capecitabine as radiosensitizers and explore potential predictive biomarkers for response to this novel neoadjuvant approach to resectable rectal cancer.

Trial registration

EudraCT 2013-001203-36. Registered on 13 December 2013.
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Metadata
Title
Lapatinib-capecitabine versus capecitabine alone as radiosensitizers in RAS wild-type resectable rectal cancer, an adaptive randomized phase II trial (LaRRC trial): study protocol for a randomized controlled trial
Authors
Nuno Sousa
Olga Sousa
Lúcio Lara Santos
Rui Henrique
Manuel R. Teixeira
Mário Dinis-Ribeiro
Armando Teixeira-Pinto
Publication date
01-12-2016
Publisher
BioMed Central
Published in
Trials / Issue 1/2016
Electronic ISSN: 1745-6215
DOI
https://doi.org/10.1186/s13063-016-1583-y

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