Organ sparing for locally advanced rectal cancer after neoadjuvant treatment followed by electrochemotherapy

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Abstract

Background: Currently, 45–55% of rectal cancer patients receive preoperative chemo-radio-therapy for Locally Advanced Rectal Cancer (LARC). The idea of our study is to use Elec-trochemotherapy (ECT) before surgery, in patients with major clinical response after neoadjuvant therapy, to allow for a more conservative surgical approach. Objective: To evaluate the increase of the complete response rate after neoadjuvant treatment in LARC and to spare organ function due to total mesorectal excision (TME). Patients and Methods: This is a Phase II randomized controlled trial enrolling 70 patients that will be developed in two stages. In the first step, 28 patients will be enrolled: 14 of these will receive ECT for four weeks after neo-adjuvant treatment and then local excision (treatment group) and 14 patients will receive neo-adjuvant treatment and then local excision (control group). If an increase of response rate is observed in the first stage, and/or feasibility/safety is demonstrated, the second stage of the trial will be performed, enrolling an additional 42 patients. The treatment response. in both the control arm and the treatment arm, will be assessed using the histopathological tumor regression grade on tissue specimens after local excision.

Original languageEnglish
Article number3199
JournalCancers
Volume13
Issue number13
DOIs
Publication statusPublished - Jul 1 2021

Keywords

  • Conservative surgery
  • Electrochemotherapy
  • Endoluminal electrodes
  • Locally advanced rectal cancer
  • Total mesorectal excision

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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