Timing to Minimally Invasive Surgery After Neoadjuvant Chemoradiotherapy for Rectal Cancer

  • STATUS
    Recruiting
  • End date
    Jun 5, 2029
  • participants needed
    332
  • sponsor
    Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo di Alessandria
Updated on 1 February 2021
Investigator
Igor Monsellato, MD
Primary Contact
Casa Sollievo della Sofferenza Opera Padre Pio (0.0 mi away) Contact
+15 other location
cancer surgery
chemoradiotherapy
adenocarcinoma
low anterior resection
abdominoperineal resection
adenocarcinoma of rectum
total mesorectal excision

Summary

The trial is a multicenter, prospective, randomized controlled, unblinded, parallel-group trial comparing standard and delayed surgery after neoadjuvant chemoradiotherapy for the curative treatment of rectal cancer. Three-hundred and thirty-two patients will be randomized on an equal basis to either robotic-assisted/standard laparoscopic rectal cancer surgery after 8 weeks or robotic-assisted/standard laparoscopic rectal cancer surgery after 12 weeks. The recruiting interval will be of 5 years and the follow-up period will end 5 years after the last patient is randomized.

Description

PURPOSE

To demonstrate if delayed timing of surgery after neoadjuvant chemoradiotherapy actually affects pathological complete response (pCR) and reflects on disease-free survival (DFS) and overall survival (OS) rather than standard timing. Eight weeks are the current standard interval to surgery after neoadjuvant treatment, while 12 weeks represent the "minimum" longer time interval to determine further tumor modifications and the "a priori" choice to avoid hypothetical surgical detrimental effect (postoperative complications related to radiation therapy).

Primary Endpoint

  • pCR

Secondary Endpoints

  • DFS
  • OS
  • QoL (quality of Life)

Site Eligibility

The trial is a multicenter collaboration, involving all those centers able to provide the standard of cure for locally advanced rectal cancer. All the involved centers have to respect the following criteria:

  • Site able to perform robotic-assisted and standard laparoscopic rectal cancer surgery and TaTME (transanal total mesorectal excision)
  • Site able to provide a preoperative work up according to the work up criteria specified in this trial
  • Site able to provide standard neoadjuvant treatment, both chemo and radiation therapy, according to the criteria specified in this trial
  • Predicted capability to recruit a minimum of 15 patients per year to the trial.

Randomization will take place after consent is obtained and after patients have completed their baseline patient reported questionnaires. Patient consent and randomization will take place as close to the date of start of the neoadjuvant treatment as possible and must be no more than 30 days prior to planned treatment.

Details
Condition Colorectal Cancer, Rectal Cancer, Colon Cancer Screening, Colon cancer; rectal cancer, rectal carcinoma
Treatment Surgery after 8 weeks from chemoradiation treatment, Surgery after 12 weeks from chemoradiation treatment
Clinical Study IdentifierNCT03465982
SponsorAzienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo di Alessandria
Last Modified on1 February 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Age >18 years
cT3/4N0/+M0 confirmed on CT-scan, MRI (stratification for T3a-b-c-d) 3
Tumor starting from the distal or medium rectum (even those crossing the peritoneal reflection at distal margin, within 15 cm from the anal margin)
Histologically-proven adenocarcinoma of the rectum
Eligible for a resective surgery with TME (low anterior resection, intersphincteric resection, abdominoperineal resection)
Eligible for resection by minimally-invasive surgery (standard or robotic-assisted laparoscopic procedure, all robotic systems will be accepted)
Eligible for chemoradiation treatment
Able to give written informed consent
Capable of completing required questionnaires at time of consent (provided questionnaires are available in a language spoke fluently by the participant)

Exclusion Criteria

Metastatic disease
Squamous carcinoma of the anal canal
Synchronous colorectal tumors requiring multi-segment surgical resection (n.b. a benign lesion within the resection field in addition to the main cancer would not exclude a patient)
History of psychiatric or addictive disorder or other medical condition that, in the opinion of the investigator, would preclude the patient from meeting the trial requirements
Pregnancy
Unable to complete neoadjuvant treatment
Unable to give free informed consent
Previous radiation treatment on the pelvis
Inflammatory bowel disease
Hereditary colorectal disease
Previous tumors other than non-melanoma skin cancer, papillary or follicular thyroid cancer
Participation in another rectal cancer clinical trial relating to the topic of this trial
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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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