Comparison of Hepatectomy and Local Ablation for Resectable Synchronous and Metachronous Colorectal Liver Metastasis (HELARC)

Comparison of Hepatectomy and Local Ablation for Resectable Synchronous and Metachronous Colorectal Liver Metastasis (HELARC) ------ a Randomized Controlled Multicenter Clinical Study

The surgical and local ablation strategy for the treatment of resectable synchronous and metachronous colorectal liver metastases(CRLM) has not still been defined. The purpose of this study is to compare two treatment strategies in which simultaneous resection of both primary and secondary tumor of synchronous CRLM(SCRLM) and resection of metachronous CRLM(MCRLM) is compared with resection of primary tumor and ablation of secondary tumor in SCRLM and ablation of MCRLM. Endpoints include the rate of severe complications and survival.

Study Overview

Detailed Description

Colorectal cancer(CRC) kills more than 700,000 patients every year, which is nowadays the world's 3rd common and the 4th deadly tumor. About 50% CRC patients will finally develop colorectal liver metastasis (CRLM). Among the CRLM patients, 20-25% of CRC are found with synchronous colorectal liver metastases (SCRLM) at the first visit. Meanwhile, about 20-30% CRC patients suffer by metachronous colorectal liver metastasis (MCRLM) even after radical resection of primary tumor. It is nowadays admitted that the R0 resection of both primary and secondary tumors in SCRLM and R0 resection of MCRLM represents a feasible and potential curative treatment in patients with resectable CRLM(RCRLM). However, the treatment strategy for some RCRLM (tumor number≤3 and tumor size≤3.0cm), such as whether to choose hepatectomy or local ablation, still remains in debate. In primary hepatocellular carcinoma(HCC), local ablation has been proved to has similar curative effect to that of hepatectomy. Compared to hepatectomy, local ablation has less trauma and more rapid recovery and possible lower hospitalization cost. The curative effect of local ablation is mainly influenced by tumor site and tumor size. On the other side, some RCRLM might develop repeat recurrences even after "R0" resection due to the imaging undetectable micro metastasis. Thus, local ablation might be more suitable for some repeat recurrent CRLM. The aim of this study is to compare the efficacy/safety of local ablation with hepatectomy for RCRLM (tumor number≤3, tumor size≤3.0cm), including both SCRLM and MCRLM. Patients are randomized to CRLM resection group and local ablation group. The primary endpoint is overall survival. Secondary endpoints evaluate the rate of patients with at least one severe complication within 30 days after surgery/ablation and long-term clinical outcomes, in particular disease-free survival.

Study Type

Interventional

Enrollment (Anticipated)

548

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Guangdong
      • Guangzhou, Guangdong, China, 510655
        • Recruiting
        • The 6th Affiliated Hospital of Sun Yat-sen University
        • Contact:
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. At least one metastatic adenocarcinoma of liver, histologically proven.
  2. At least one adenocarcinoma of colon and/or rectum, histologically proven.
  3. No local complication at the time of surgery (no occlusion, no sub-occlusion, no massive hemorrhage, no abscesses or local invasion).
  4. No extra-hepatic metastasis.
  5. Extra-hepatic disease (EHD) suitable for hepatectomy, liver ablation and anesthesia as long as all sites of EHD disease are radically treated.
  6. All the primary and secondary tumors which R0 resections are technically possible. (SCRLM: synchronous resection for both primary and secondary tumors, MCRLM: no local recurrence within 6 months after resection of primary tumor)
  7. Residual hepatic volume>30%-40%.
  8. At least 2-3 hepatic segments remained after hepatectomy (except S1), residual liver with normal portal vein, hepatic artery and biliary duct, at least 1 of hepatic veins (left, middle and right) not invaded.
  9. Tumor size ≤3 cm.
  10. Tumor number≤ 3.
  11. Tumors located ≥1.0 cm of vulnerable structures, e.g. colon, main trunk of portal vein, hepatic artery, hepatic vein and intrahepatic biliary duct.
  12. suitable for both hepatectomy and local ablation after multiple disciplinary team(MDT) discussion.
  13. Informed written consent.

Exclusion Criteria:

  1. Other malignant tumors history.
  2. Complications need emergency surgery (occlusion, sub-occlusion, massive hemorrhage and abscesses, et al.).
  3. Colorectal or hepatic tumor extension towards abdominal wall and/or adjacent organ making liver R0 resection impossible immediately.
  4. Hepatic lesions diagnosed with ultrasound and MRI making complete ablation impossible immediately.
  5. ≤ 2 hepatic segments remained after hepatectomy or residual hepatic volume﹤30%-40%
  6. Non resectable lymph node metastasis.
  7. American Society of Anesthesiologists(ASA) grading≥ IV and/or Eastern cooperative oncology group(ECOG) score≥ 2. (see appendix)
  8. EHD is not recommended.
  9. Physical or psychological dependence.
  10. Pregnant or breast feeding women.
  11. Not controlled preoperational infection.
  12. Enrolled in other clinical trials within 4 weeks. Other clinical or laboratorial condition not recommended by investigators.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: CRLM resection group
Resection of both primary and secondary tumors in SCRLM and resection of MCRLM. Interventions: Simultaneous resection of both primary and secondary tumors in SCRLM and resection of MCRLM.
Simultaneous resection of both primary and secondary tumors in synchronous CRLM or resection of metachronous CRLM.
Other Names:
  • Hepatectomy
Experimental: CRLM ablation group

Ablation of CRLM after resection of primary tumor in SCRLM and ablation of MCRLM.

Interventions: Ablation of liver metastasis within 30 days after resection of primary tumor in SCRLM and ablation of MCRLM.

Microwave ablation of CRLM with a 2.15-gigahertz(GHz) microwave generator and a 14 gauge diameter transcutaneous antenna within 30 days after resection of primary tumor in synchronous CRLM or ablation of metachronous CRLM.
Other Names:
  • Microwave ablation

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Overall survival
Time Frame: 3 years
3 years

Secondary Outcome Measures

Outcome Measure
Time Frame
R0 resection rate in both primary and secondary tumor in CRLM
Time Frame: Day of surgery
Day of surgery
Death rate during hospitalization or within 30 days after surgery/ablation
Time Frame: 30 days after surgery/ablation
30 days after surgery/ablation
Rate of patients with at least one postoperative severe complication within 30 days after surgery/ablation
Time Frame: 30 days after surgery/ablation
30 days after surgery/ablation
Disease-free survival and 1, 2 and 3-years disease-free survival rate
Time Frame: 1, 2 and 3-years
1, 2 and 3-years
Complete ablation rate in CRLM
Time Frame: Day of ablation
Day of ablation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Meijin Huang, MD,PHD, The 6th Affiliated Hospital of Sun Yat-sen University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2016

Primary Completion (Anticipated)

July 1, 2021

Study Completion (Anticipated)

July 1, 2026

Study Registration Dates

First Submitted

August 24, 2016

First Submitted That Met QC Criteria

August 28, 2016

First Posted (Estimate)

September 1, 2016

Study Record Updates

Last Update Posted (Estimate)

September 1, 2016

Last Update Submitted That Met QC Criteria

August 28, 2016

Last Verified

August 1, 2016

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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