NCT04637061

Brief Summary

Anastomotic failure (AF), including anastomotic leakage (AL), increases morbidity and mortality after colorectal cancer (CRC) resection. An inadequate perfusion of the anastomosis or technical stapling defects may contribute to AF. Several studies evaluated the singular use of intraoperative near infrared (NIR) indocyanine green (ICG)-induced fluorescence angiography (FA) and air leak testing to assess the integrity and the perfusion levels of the colorectal anastomosis. So far, a combined use of these methodologies, although acknowledged has not yet been tested as an indicator of postoperative AF or of intra-operative anastomotic repair in a prospective setting. This study aims to implement the intraoperative anastomotic assessment in a prospective series of patients undergoing rectal resection plus primary anastomosis for rectal cancer with or without ostomy, using a semi-quantitative check of 4 items (4-check). The procedure will include NIR-ICG-induced FA (to assess perfusion), air leak test and evaluation of the anastomotic donuts (to assess for the presence of technical defects). Included patients will be those scheduled for elective rectal resection with total or partial mesorectal excision and primary colo-rectal anastomosis with/or without protective ostomy. Primary outcomes will be the overall incidence of intra-operative anastomotic repair and the rate of post-operative AF. Secondary outcomes will be the overall incidence of adverse events and serious complications, the estimation of costs and resources, the operative time, hospitalization and post-operative measurement of inflammatory markers.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
287

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2021

Typical duration for all trials

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 14, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 19, 2020

Completed
1 month until next milestone

Study Start

First participant enrolled

January 1, 2021

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2022

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2023

Completed
Last Updated

November 25, 2020

Status Verified

November 1, 2020

Enrollment Period

2 years

First QC Date

November 14, 2020

Last Update Submit

November 23, 2020

Conditions

Keywords

rectal cancerindocyanine greenfluorescence angiographysurgery

Outcome Measures

Primary Outcomes (2)

  • intra-operative anastomosis repairs

    defined as additional suturing or re-do anastomosis

    01/01/2021 to 31/12/2022

  • Rate of 30 day-anastomotic failure (AF)

    defined as anastomotic-related morbidity, including anastomotic leakage, pelvic abscess, anastomotic-related fistula, sinus, and anastomotic stricture

    01/01/2021 to 31/12/2022

Secondary Outcomes (6)

  • Rate of of adverse events

    01/01/2021 to 31/12/2022

  • Rate of 30-day major complications

    01/01/2021 to 31/12/2022

  • Measure of costs

    01/01/2021 to 31/12/2022

  • Medan length of post-operative stay

    01/01/2021 to 31/12/2022

  • C-Reactive Protein (CRP) measurement

    01/01/2021 to 31/12/2022

  • +1 more secondary outcomes

Study Arms (1)

REC4T study patients

Rectal adenocarcinoma or polyp with indication for resection and primary colo-rectal mechanical anastomosis using a circular stapler with/or without protective ostomy undergoing upfront surgery and patients undergoing neoadjuvant therapy followed by surgery (see Inclusion/Exclusion Criteria)

Combination Product: intraoperative near infrared (NIR) indocyanine green (ICG)-induced fluorescence angiography (FA) and air leak testing to assess the integrity and the perfusion levels of the colorectal anastomosisDiagnostic Test: Air Leak testDiagnostic Test: Evaluation of the anastomotic rings

Interventions

Extra-luminal (serosa) and Endo-luminal (mucosal) evaluation of the proximal colon and distal rectal stump perfusion based on a semi-quantitative NIR-ICG-induced FA. This will be conducted administering IV a bolus of 3.75 to 7.5 mg of ICG and evaluated using a Fluorescence Imaging System; following after completion of the anastomosis a second bolos of 3.75 to 7.5 mg of ICG will be administered IV and the anastomosis will be visualized by insertion of the system trans-anally. Colon and rectal segments and quadrants will be scored for any defect of perfusion.

Also known as: Near Infrared Fluorescence angiography, indocyanine green
REC4T study patients
Air Leak testDIAGNOSTIC_TEST

This will be conducted insufflaying air in the anastomosis through a proctoscope, tube or a flexible endoscope, after filling of the pelvis with saline solution and luminal occlusion of the intestine proximal to the anastomosis. Also, the anastomosis will be checked transanally for the presence of air leak.

REC4T study patients

The assessment of the anastomotic rings following mechanical anastomosis will be recorded as complete/incomplete

REC4T study patients

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Selected patients will receive oral bowel preparation as for colonoscopy, 2 days before surgery and managed with ERAS protocol. Patients should be treated with rectal resection with TME or PME and mechanical anastomosis with a circular stapler, using one of the following approaches: 1. Open surgery. 2. Laparoscopic surgery (operations performed through small incisions and ports placements independently from the type and length of incision for specimen extraction). 3. Robot-assisted surgery (using robotic systems to aid in surgical procedures independently from the type and length of incision for specimen extraction). 4. TaTME. Mini-invasive bottom up approach for mesorectal dissection and colorectal anastomosis using a single/double team, independently from the type and length of incision for specimen extraction. The following procedures is required during surgery: Routine splenic flexure mobilization.

You may qualify if:

  • years or older.
  • Rectal adenocarcinoma or benign polyp with indication for rectal resection with total or partial mesorectal excision and primary colo-rectal anastomosis with/or without protective ostomy.
  • Patients undergoing upfront surgery and patients undergoing neoadjuvant therapy followed by surgery.
  • Patients with adequate performance status (Eastern Cooperative Oncology Group Scale score of ≤2).
  • Patient must sign the Informed Consent Form (ICF) before any study procedures and agrees to attend all study visits.

You may not qualify if:

  • Patient pregnant or suspected pregnancy.
  • Patient with a comorbid illness or condition that would preclude the use of surgery.
  • Past medical history of Inflammatory Bowel Disease (IBD).
  • Synchronous cancers requiring extended sub-total or total colectomies.
  • Long lasting therapy with steroids to be continued in the peri-operative period (4 weeks previous and 4 weeks after surgery).
  • Use of antiplatelet drug (anti-aggregant) and/or oral anti-coagulant drug to be continued in the peri-operative period (1 week previous and 4 weeks after surgery).
  • Patients assessed as American Society of Anesthesiologists (ASA) physical status 4.
  • Patients with clinical stage of cT4b tumor after neoadjuvant theapy.
  • Metastatic disease (clinical Stage 4).
  • Patient undergoing emergency procedures.
  • Planned colonic surgery along with major concomitant procedures (i.e. liver resections, other intestinal resections).
  • Previous colon surgery (excluding appendectomy).
  • Non-restorative procedures (i.e. Miles or Hartman resection).
  • Colo-anal manual anastomosis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Rectal Neoplasms

Interventions

Indocyanine Green

Condition Hierarchy (Ancestors)

Colorectal NeoplasmsIntestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesIntestinal DiseasesRectal Diseases

Intervention Hierarchy (Ancestors)

IndolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Study Officials

  • Roberto Persiani, MD

    Fondazione Policlinico Universitarioa A Gemelli IRCCS

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Laura Lorenzon, MD PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
30 Days
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 14, 2020

First Posted

November 19, 2020

Study Start

January 1, 2021

Primary Completion

December 31, 2022

Study Completion

June 1, 2023

Last Updated

November 25, 2020

Record last verified: 2020-11

Data Sharing

IPD Sharing
Will not share