Balloon-occluded Retrograde Transvenous Obliteration for Gastric Variceal Rebleeding

October 24, 2023 updated by: Wen-Chi Chen, Kaohsiung Veterans General Hospital.

Balloon-occluded Retrograde Transvenous Obliteration Versus Endoscopic Tissue Glue Injection in the Prevention of Recurrent Gastric Variceal Bleeding

The goal of this randomized controlled trial is to compare the rebleeding rate in cirhotic patients with gastric variceal bleeding receiving balloon-occluded retrograde transvenous obliteration and endoscopic tissue glue injection. The main questions it aims to answer are:

  • Recurrent gastric variceal bleeding
  • Further decompensation of liver cirrhosis

Participants will receive balloon-occluded retrograde transvenous obliteration and endoscopic tissue glue injection. Researchers will compare balloon-occluded retrograde transvenous obliteration and endoscopic tissue glue injection to see if the rebleeding rate associated with balloon-occluded retrograde transvenous obliteration is lower than that associated with endoscopic tissue glue injection.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Variceal bleeding is a severe complication of portal hypertension. Gastric variceal bleeding (GVB) is more severe than bleeding from esophageal varices. Gastric varices also have a higher risk of rebleeding than esophageal varices. Previous studies showed that endoscopic injection of cyanoacrylate was superior to endoscopic variceal ligation in the management of gastric variceal bleeding. Another study showed that transjugular intrahepatic portosystemic shunt had a lower rebleeding rate than endoscopic cyanoacrylate injection. However, transjugular intrahepatic portosystemic shunt (TIPS) is more invasive and carries a risk of development of hepatic encephalopathy and is usually preserved for uncontrolled variceal bleeding. Therefore, endoscopic cyanoacrylate injection is recommended as the treatment of choice for GVB. Balloon-occluded retrograde transvenous obliteration (BRTO) is a new therapy for gastric variceal bleeding. However, BRTO is associated with increased portal pressure and worsening of ascites, hepatohydrothorax, and esophageal varices. There are only a few retrospective studies comparing BRTO and endoscopic cyanoacrylate injection in the prevention of recurrent gastric variceal bleeding.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
68

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Taiwan
      • Kaohsiung, Taiwan, 813
        • Recruiting
        • Kaohsiung Veterans General Hospital
        • Contact:
        • Principal Investigator:
          • Wen-Chi Chen, M.D

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • age more than 20 years
  • a history of liver cirrhosis
  • acute GOV2 or IGV1 bleeding

Exclusion Criteria:

  • previous treatment for gastric varices, including endoscopic therapy, transjugular intrahepatic portosystemic shunt, or shunt surgery
  • hepatocellular carcinoma or other malignancy
  • stroke, uremia, or active sepsis
  • serum total bilirubin >10 mg/dL
  • grade III/IV hepatic encephalopathy
  • refractory ascites
  • uncontrolled index bleeding
  • pregnancy
  • severe heart failure (NYHA Fc III/IV)
  • allergy to cyanoacrylate, lipiodol, iodine, or sodium tetradecyl sulfate
  • absence of gastrorenal shunt

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

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Balloon-occluded retrograde transvenous obliteration

Information of drug:

3% sodium tetradecyl sulfate injection Name: Fibro-vein injection Manufacturer: STD Pharmaceutical Products Ltd.
Drug: Sodium tetradecyl sulfate
Subjects receive sodium tetradecyl sulfate via balloon-occluded retrograde transvenous obliteration at 3 to 5 days after initial hemostasis of acute gastric variceal bleeding.
Active Comparator: Endoscopic cyanoacrylate injection

Information of drug:

N-butyl-2-cyanoacrylate Name: Histoacryl blue Manufacturer: Braun, Melsungen, Germany
Drug: Cyanoacrylate
Subjects receive endoscopic cyanoacrylate injection at 3 to 5 days after initial hemostasis of acute gastric variceal bleeding then receive repeated endoscopic cyanoacrylate injection at 1-month intervals until obliteration of gastric varices.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
recurrent gastric variceal bleeding
Time Frame: From date of randomization until the date of first documented recurrent gastric variceal bleeding or date of death from any cause, whichever comes first, assessed up to 100 months
recurrent gastric variceal bleeding after interventions
From date of randomization until the date of first documented recurrent gastric variceal bleeding or date of death from any cause, whichever comes first, assessed up to 100 months
further liver decompensation
Time Frame: From date of randomization until the date of first documented further liver decompensation or date of death from any cause, whichever comes first, assessed up to 100 months
further liver decompensation after intervensions
From date of randomization until the date of first documented further liver decompensation or date of death from any cause, whichever comes first, assessed up to 100 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
recurrent upper gastrointestinal bleeding
Time Frame: From date of randomization until the date of first documented recurrent upper gastrointestinal bleeding or date of death from any cause, whichever comes first, assessed up to 100 months
recurrent upper gastrointestinal bleeding after interventions
From date of randomization until the date of first documented recurrent upper gastrointestinal bleeding or date of death from any cause, whichever comes first, assessed up to 100 months
mortality or liver transplantation
Time Frame: From date of randomization until the date of documented liver transplantation or date of death from any cause, whichever comes first, assessed up to 100 months
mortality or liver transplantation after intervensions
From date of randomization until the date of documented liver transplantation or date of death from any cause, whichever comes first, assessed up to 100 months

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Kaohsiung Veterans General Hospital.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Wen-Chi Chen, M.D, Kaohsiung Veterans General Hospital.

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 28, 2018

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 17, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 24, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 30, 2023

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 30, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 24, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2023

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • VGHKS18-CT6-12

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

All IPD that underlie results in a publication will be shared 12 months after article publication.

IPD Sharing Time Frame

Data requests can be submitted starting 12 months after article publication and the data will be made accessible for up to 24 months.

IPD Sharing Access Criteria

Access to trial IPD can be requested by qualified researchers engaging in independent scientific research, and will be provided following review and approval of a research proposal and Statistical Analysis Plan and execution of a Data Sharing Agreement. For more information or to submit a request, please contact wcchen@vghks.gov.tw.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ANALYTIC_CODE
  • CSR

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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