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Second and Third Look Laparoscopy in pT4 Colon Cancer Patients for Early Detection of Peritoneal Metastases

NCT03413254 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 389

Last updated 2024-02-23

No results posted yet for this study

Summary

The COLOPEC II multicentre randomized trial will investigate the role of second and third look laparoscopy to detect metachronous peritoneal metastases at a clinically occult stage during the follow-up of pT4 colon cancer patients. It is expected that detection of PM at a clinically occult stage will translate into survival benefit, due to higher percentage of patients eligible for curative intent treatment with cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC).

Conditions

Interventions

OTHER

Routine follow-up

Patients visit the outpatient clinic twice a year during the first two to three years and annually thereafter, until five years postoperative. CEA-levels are determined at 3, 6, 9, 12, 15, 18, 21, 24, 30, 36, 48 and 60 months after primary resection. Detection of liver metastases with ultrasound or CT is performed at 12, 24, 36, 48 and 60 months postoperative. At 6 and 18 months postoperative, a CT-scan is part of the study protocol, but ultrasound of the liver is allowed for other time intervals during follow-up. Colonoscopy is performed at 12 and 48 months postoperative.

PROCEDURE

Second look DLS

Second look DLS is performed within one month from negative CT at 6-9 months (depending last date of adjuvant chemotherapy) and normal CEA. Laparoscopic access to the abdominal cavity is obtained under general anaesthesia, followed by adhesiolysis if necessary. Complete staging is performed, with biopsy of any lesion suspicious of PM, and determining the peritoneal cancer index (PCI) in case of PM. Conversion to laparotomy not allowed for better exposure, but only for intra-operative complications.

PROCEDURE

Third look DLS

Third look DLS is performed within one month from negative CT at 18 months and normal CEA. Laparoscopic access to the abdominal cavity is obtained under general anaesthesia, followed by adhesiolysis if necessary. Complete staging is performed, with biopsy of any lesion suspicious of PM, and determining the peritoneal cancer index (PCI) in case of PM. Conversion to laparotomy not allowed for better exposure, but only for intra-operative complications.

Sponsors & Collaborators

  • Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-03-01
Primary Completion
2025-03-01
Completion
2028-10-01

Countries

  • Netherlands

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03413254 on ClinicalTrials.gov