Clinical Outcome and Future Liver Remnant Regenerative Response in Laparoscopic Versus Open ALPPS

August 13, 2024 updated by: Albert Chi Yan Chan, The University of Hong Kong

Clinical Outcome and Future Liver Remnant Regenerative Response in Laparoscopic Versus Open ALPPS: A Randomized Clinical Trial

Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) is a new surgical procedure that induces rapid liver regeneration in patients with small liver remnant planning for major liver resection. It is a two-staged operation with stage I including portal vein ligation and splitting the right liver away from the left liver. After stage I, the left liver will undergo rapid liver regeneration and the stage II operation can be performed at 7-10 days after stage I operation when the liver remnant reaches an adequate size. In stage II operation, the right liver that contains the tumor is then removed. This surgical procedure was incepted in Germany in 2013 and was later started in Queen Mary Hospital in Hong Kong for the first time in December 2015. The initial indication was mainly for colorectal liver metastasis but due to the relatively high incidence of hepatocellular carcinoma in Hong Kong, HBP surgery team of Queen Mary Hospital has transferred this procedure to be applied for hepatitis-related hepatocellular carcinoma and so far, the centre has cumulated one of the largest single-center experience in the literature. Nonetheless, the usual approach for ALPPS involved open surgery and induced substantial surgical stress to the patient, especially after stage I operation. With the advent of minimally invasive liver surgery in recent years, the team has successfully applied laparoscopic surgery to ALPPS in 2019. Despite the advancement in laparoscopic surgical skills that rendered laparoscopic ALPPS feasible, there is scarcity of data in the literature to evaluate its outcome in comparison with open ALPPS with regard to perioperative recovery and liver regeneration. Hence, the aim of this project is to evaluate the short-term clinical outcomes of laparoscopic ALPPS and the impact of laparoscopy on liver remnant regeneration after ALPPS in a prospective randomised clinical trial setting.

Study Overview

Detailed Description

Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) has been popularized as an alternative approach for FLR augmentation in recent years. The main indication at the early phase of development of this procedure was bilobar colorectal liver metastasis, or other non-primary liver tumors. Since 2015, HBP surgery team of Queen Mary Hospital has started to transfer this novel approach to treat patients with hepatitis-related hepatocellular carcinoma and small future liver remnant contemplating for major hepatectomy. Despite the initial global enthusiasm to embark on ALPPS, the procedure was criticized for its high postoperative morbidity and mortality rates. However, through the establishment of the international ALPPS registry and familiarization of the procedure, the outcome of ALPPS has been benchmarked and standardized with a mortality rate <4%. The initial experience of ALPPS for HCC was also reported. With cumulative experience, ALPPS has become a safe and effective treatment approach for surgical modulation of insufficient FLR when compared with the conventional approach in the form of portal vein embolization. Nonetheless, ALPPS is a two-stage procedure that commonly involved an open laparotomy. However, the postoperative pain control and speed of recovery after stage I ALPPS would be affected by the substantial surgical stress induced by laparotomy. On the other hand, the rapid development of laparoscopic surgery has rendered laparoscopic liver surgery a much more feasible and safer surgical approach in recent years. As such, minimally invasive approach becomes an attractive option for ALPPS, at least for stage I procedure. Data on the application of laparoscopic ALPPS remained scarce with only one study reported the short-term outcome in a series of 10 patients predominantly affected by colorectal liver metastasis.

Since the short-term postoperative safety profile and underlying intraoperative haemodynamic changes induced by ALPPS for hepatitis-related HCC under conventional open approach was ascertained by our recent study, it is considered that it is the right time to introduce laparoscopy for ALPPS and to compare its clinical outcome with open approach. To date, a total of 4 patients have received laparoscopic ALPPS in the centre.

Recent studies suggested that laparoscopic liver resection may be associated with reduced inflammatory and stress response as compared with open resection as indicated by a reduced expression of inflammatory cytokines such as interleukin-6, tumor necrosis factor. On the other hand, study on liver regeneration after open ALPPS showed an elevated gene expression of IL-6 and TNF as well as increased plasma levels within 24 hours after the procedure when compared with portal vein ligation. It remains uncertain if reduced level of cytokines or inflammatory markers induced by laparoscopy would affect the liver regeneration rate in ALPPS patients and its clinical outcome. Hence, there is a need to clarify this issue in the current project.

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Phase 3

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

  • Name: Albert Chan
  • Phone Number: +85222553025
  • Email: acchan@hku.hk

Study Contact Backup

Study Locations

      • Hong Kong, Hong Kong
        • Recruiting
        • The University of Hong Kong
        • Contact:
        • Principal Investigator:
          • Albert Chan
        • 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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Patients with a diagnosis of malignant liver tumor contemplating for extended right hepatectomy or right trisectionectomy
  2. Patient consent
  3. Age >/= 18
  4. FLR/ESLV </= 30%
  5. Indocyanine green clearance rate at 15 mins : < 18%
  6. Platelet count > 100x10^9/L
  7. Child A cirrhosis (due to hepatitis B/C virus, or alcohol, or autoimmune disease)
  8. American Society of Anaesthesiology score < 3
  9. Eastern Cooperative Oncology Group (ECOG) performance status 0-2

Technical factors eligible for laparoscopic ALPPS

  • single long-segment portal

Exclusion Criteria:

  1. Absence of consent
  2. Decompensated liver disease as indicated by the presence of ascites, varices and hepatic encephalopathy
  3. ECOG performance status >/= 3
  4. Main portal vein thrombosis
  5. FLR/ESLV > 30%

Technical factors not eligible for laparoscopic ALPPS

  • Short-segment right portal vein or early bifurcation of right anterior/posterior portal vein, or other portal vein anomalies
  • Large tumor size with diameter > 5 cm
  • Intolerance to CO2 pneumoperitoneum

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: Factorial Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Laparoscopic ALPPS
Laparoscopic ALPPS procedure
Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) is a surgical procedure that induces rapid liver regeneration in patients with small liver remnant planning for major liver resection. It is a two-staged operation with stage I including portal vein ligation and splitting the right liver away from the left liver. After stage I, the left liver will undergo rapid liver regeneration and the stage II operation can be performed at 7-10 days after stage I operation when the liver remnant reaches an adequate size. In stage II operation, the right liver that contains the tumor is then removed.
Other Names:
  • ALPPS
Active Comparator: Open ALPPS
Open ALPPS procedure
Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) is a surgical procedure that induces rapid liver regeneration in patients with small liver remnant planning for major liver resection. It is a two-staged operation with stage I including portal vein ligation and splitting the right liver away from the left liver. After stage I, the left liver will undergo rapid liver regeneration and the stage II operation can be performed at 7-10 days after stage I operation when the liver remnant reaches an adequate size. In stage II operation, the right liver that contains the tumor is then removed.
Other Names:
  • ALPPS

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Amount of future liver remnant volume increment by percentage after stage I ALPPS
Time Frame: During hospital stay after stage I ALPPS, an average of 1-2 weeks
Amount of future liver remnant volume increment by percentage after stage I ALPPS
During hospital stay after stage I ALPPS, an average of 1-2 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Preoperative blood loss during stage 1 ALPPS
Time Frame: During hospital stay after stage I ALPPS, an average of 1-2 weeks
Preoperative blood loss during stage 1 ALPPS
During hospital stay after stage I ALPPS, an average of 1-2 weeks
Length of hospital stay after stage 1 ALPPS
Time Frame: During hospital stay after stage I ALPPS, an average of 1-2 weeks
Length of hospital stay after stage 1 ALPPS
During hospital stay after stage I ALPPS, an average of 1-2 weeks
Overall morbidity in number and mortality rates in percentage after stage 1 ALPPS
Time Frame: During hospital stay after stage I ALPPS, an average of 1-2 weeks
Overall morbidity and mortality rates after stage 1 ALPPS
During hospital stay after stage I ALPPS, an average of 1-2 weeks
Inflammatory markers associated with inflammation and regeneration after stage 1 ALPPS
Time Frame: During hospital stay after stage I ALPPS, an average of 1-2 weeks
Inflammatory markers e.g. IL-6 (pg/ml), IL-8 (pg/ml) and TNF-alpha (pg/ml) associated with inflammation and regeneration after stage 1 ALPPS
During hospital stay after stage I ALPPS, an average of 1-2 weeks

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Albert Chan, The University of Hong Kong

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.

General Publications

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 (Actual)

September 2, 2020

Primary Completion (Actual)

December 31, 2023

Study Completion (Estimated)

December 31, 2027

Study Registration Dates

First Submitted

December 28, 2020

First Submitted That Met QC Criteria

April 27, 2021

First Posted (Actual)

April 30, 2021

Study Record Updates

Last Update Posted (Actual)

August 15, 2024

Last Update Submitted That Met QC Criteria

August 13, 2024

Last Verified

August 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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