UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000040758
Receipt number R000046539
Scientific Title A retrospective observational study to evaluate the efficacy of laparoscopic liver resection for small hepatocellular carcinoma located in the hepatic dome.
Date of disclosure of the study information 2020/06/15
Last modified on 2023/06/17 19:10:56

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Basic information

Public title

A retrospective observational study to evaluate the efficacy of laparoscopic liver resection for small hepatocellular carcinoma located in the hepatic dome.

Acronym

Laparoscopic liver resection for small hepatocellular carcinoma located in the hepatic dome.

Scientific Title

A retrospective observational study to evaluate the efficacy of laparoscopic liver resection for small hepatocellular carcinoma located in the hepatic dome.

Scientific Title:Acronym

Laparoscopic liver resection for small hepatocellular carcinoma located in the hepatic dome.

Region

Japan


Condition

Condition

Hepatocellular carcinoma

Classification by specialty

Hepato-biliary-pancreatic surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the safety and efficacy of laparoscopic liver resection for small hepatocellular carcinoma located in the hepatic dome.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Postoperative hospital stay

Key secondary outcomes

Intraoperative blood loss, operation time


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Hepatocellular carcinoma patients
who underwent open or laparoscopic radical resection in accordance with the following criteria
1) Any gender and age
2) Patients with solitary lesions of 5 cm or less, located in liver segments 2 to 6 where it is possible to perform partial hepatectomy and lateral segmentectomy, or Patients with solitary lesion of 3cm or less, located in segments 7 or 8 where it is possible to perform partial hepatectomy and subsegmentectomy.
3) The diagnoses of hepatocellular carcinoma were confirmed pathologically (including combined hepatocellular carcinoma and cholangiocellular carcinoma)
4) Hepatocellular carcinoma patients who underwent initial hepatectomy

Key exclusion criteria

1) Hepatocellular carcinoma patients who had undergone following treatments for the target lesion
-Percutaneous local ablative therapy (PEIT, RFA, MCT)
-Transarterial (chemo) embolization
-Radiation therapy

2) Hepatocellular carcinoma patients who underwent following procedure during the operation.
-Vascular resection and reconstruction.
-Tumor thrombectomy
-Biliary reconstruction
-Simultaneous resection of liver cancer and other internal organs, except the gallbladder
-Local ablative therapy (PEIT, RFA, MCT)
3) Multiple liver lesion
4) Thoracoscopic surgery
5) Robotic-assisted surgery

Target sample size

1000


Research contact person

Name of lead principal investigator

1st name Hiroaki
Middle name
Last name Nagano

Organization

Yamaguchi University Graduate School of Medicine

Division name

Department of Gastroenterological, Breast and Endocrine Surgery

Zip code

755-8505

Address

1-1-1 Minami-Kogushi, Ube, Yamaguchi

TEL

0836-22-2264

Email

hnagano@yamaguchi-u.ac.jp


Public contact

Name of contact person

1st name Yukio
Middle name
Last name Tokumitsu

Organization

Yamaguchi University Graduate School of Medicine

Division name

Department of Gastroenterological, Breast and Endocrine Surgery

Zip code

755-8505

Address

1-1-1 Minami-Kogushi, Ube, Yamaguchi

TEL

0836-22-2264

Homepage URL


Email

yt790604@yamaguchi-u.ac.jp


Sponsor or person

Institute

Kyusyu Study Group of Liver Surgery

Institute

Department

Personal name



Funding Source

Organization

Kyusyu Study Group of Liver Surgery

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Center For Clinical Research, Yamaguchi University Hospital

Address

1-1-1 Minami-Kogushi, Ube, Yamaguchi

Tel

0836-22-2428

Email

me223@yamaguchi-u.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2020 Year 06 Month 15 Day


Related information

URL releasing protocol

https://center6.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=R000046539

Publication of results

Published


Result

URL related to results and publications

http://doi.org/10.1111/hepr.13929

Number of participants that the trial has enrolled

473

Results

After matching, 140 patients with LLR and 140 with OLR were analyzed. Significant differences were found between groups in terms of volume of blood loss (median, 55 vs. 287 ml, p < 0.001), postoperative complications (0.71 vs. 8.57%, p = 0.003), and postoperative hospital stay (median, 9 vs. 14 days, p < 0.001). The results of subgroup analysis of PS were similar. Short-term outcomes did not differ significantly between LLR-PS and LLR-AL after matching.

Results date posted

2023 Year 06 Month 17 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

Patients who underwent partial liver resection for single nodular HCCs within 3cm

Participant flow

In total, 473 patients who underwent partial liver resection for single nodular HCCs within 3 cm at the 18 institutions belonging to the Kyusyu Study Group of Liver Surgery from January 2010 to December 2018 were enrolled. The short-term outcomes of laparoscopic partial liver resection and open liver resection (OLR) for HCCs within 3 cm, with subgroup analysis of PS and AL, were compared using propensity score-matching analysis. Furthermore, results were also compared between LLR-PS and LLR-AL.

Adverse events

Not applicable

Outcome measures

Short-term results (Intraoperative blood loss, operation time, postoperative complications, length of postoperative hospital stay)

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2020 Year 05 Month 25 Day

Date of IRB

2020 Year 05 Month 29 Day

Anticipated trial start date

2020 Year 06 Month 01 Day

Last follow-up date

2022 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

In the fourth version of clinical practice guidelines for hepatocellular carcinoma by the Japan Society of Hepatology, laparoscopic hepatectomy was recommended for the Hepatocellular carcinoma patients with solitary lesions of 5 cm or less, located in liver segments 2 to 6 where it is possible to perform partial hepatectomy and lateral segmentectomy. In the current study, safety and efficacy of laparoscopic liver resection for small hepatocellular carcinoma located in the hepatic dome, which is considered to be beyond the recommended criteria, was investigated.


Management information

Registered date

2020 Year 06 Month 14 Day

Last modified on

2023 Year 06 Month 17 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000046539


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name