Drug-Eluting Balloon in Arteriovenous Graft

November 21, 2018 updated by: National Taiwan University Hospital Hsin-Chu Branch

A Randomized Controlled Trial of Drug-Eluting Balloon Angioplasty in Venous Anastomotic Stenosis of Dialysis Arteriovenous Graft

The investigators' study aims is to evaluate the safety and efficacy of percutaneous transluminal angioplasty (PTA) with paclitaxel-coated balloon (PCB) at venous anastomotic stenosis of arteriovenous graft (AVG) in patients with hemodialysis

Study Overview

Status

Status

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

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.

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 (Actual)

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.
44

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.
  • 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 Locations

  • Taiwan
      • Hsinchu, Taiwan
        • National Taiwan University Hospital HsinChu Branch

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

18 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Aged 18 to 90 years
  2. Patients under hemodialysis via prosthetic arteriovenous graft in the arm
  3. Vascular access was created for more than 30 days and used at least one successful session
  4. Clinical failure for hemodialysis due to higher venous pressure or lower arterial flow
  5. Angiography proved venous anastomotic stenosis ≥50% (the entire lesion of venous anastomotic stenosis will be extended into AVG no more than 2cm and naive vein no more than 7 cm). There was no other obvious stenosis.
  6. Reference diameter of venous anastomosis within 7 mm

Exclusion Criteria:

  1. Patient could not write informed consent
  2. Being unwilling or unable to return for follow-up visits or reason to believe that adherence to follow-up visits would be irregular
  3. Current or scheduled enrollment in other, conflicting studies.
  4. Acute thrombosis in the past 3 months
  5. Central venous stenosis
  6. Concomitant disease (e.g., terminal cancer) or other medical condition likely to result in death within 6 months
  7. A blood coagulation disorder
  8. Sepsis or infected arteriovenous access graft
  9. A contraindication to the use of contrast medium
  10. Pregnancy

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: Single

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: Drug-Eluting Balloon
PTA with DEB at venous anastomotic stenosis of AVG
Device: paclitaxel-coated balloon, IN. PACT(Invatec-Medtronic, Brescia, Italy)
Arteriovenous graft (AVG) dysfunction or acute thrombosis is mainly caused by neointimal hyperplasia. Although endovascular intervention, such as percutaneous transluminal angioplasty (PTA), catheter-based directed thrombolysis with urokinase, mechanical thrombectomy with percutaneous thrombolytic device or even if graft stenting, can salvage the hemodialysis access, the long-term primary and secondary patent rate don't improve due to repeated restenosis from neointimal hyperplasia. Drug eluting balloon is used in reducing neointimal hypoplasia in patients with coronary in-stent restenosis and it's also effective in restenosis of peripheral arterial diseases. It's reasonable to hypothesize that PTA with PCB at venous anastomotic stenosis of AVG could prolong the patency and reduce the acute thrombosis rate.
Active Comparator: Plain Balloon
PTA with PCB at venous anastomotic stenosis of AVG
Device: Plain Balloon
Traditional Plain Balloon was used to dilate the venous anastomotic stenosis of arteriovenous graft (AVG) as the usual intervention

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
patent rate in percentage after PTA
Time Frame: 1 year
Late luminal loss in patients was evaluated by quantitative angiography after PTA and intravascular ultrasound (IVUS) up to 12 months after PTA. Late luminal loss is defined as the difference between the minimal lumen diameter in percentage and the late luminal loss less than 50% was defined as patency.
1 year

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
The incidence of angiography-guided binary restenosis rate (≥50% of the diameter of the reference-vessel)
Time Frame: 1 year
Measure the stenotic percentage every 2 months up to 1 year for angiography
1 year
The incidence of IVUS-guided binary restenosis rate (≥50% of the diameter of the reference-vessel)
Time Frame: 1 year
Measure the stenotic percentage 1, 6, 12 months for IVUS
1 year
Change of AVG flow in liter per minute
Time Frame: 1 year
measure the AVG flow and pressure before PTA, 1 week and every 2 months up to 1 year after PTA
1 year
Change of AVG pressure in mmHg
Time Frame: 1 year
measure the AVG flow and pressure before PTA, 1 week and every 2 months up to 1 year after PTA
1 year
Time interval of patent AVG after PTA
Time Frame: 1 year
Patent AVG was defined as luminal loss less than 50%
1 year
The rate of AVG failure at 6 months and 12 months
Time Frame: 1 year
AVG failure was defined as AVG thrombosis, AVG re-intervention
1 year

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Paclitaxel-coated balloon safety
Time Frame: 1 year
Record complications of paclitaxel-coated balloon such as graft failure and vessel dissection or rupture.
1 year

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.
National Taiwan University Hospital Hsin-Chu Branch

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.
January 29, 2015

Primary Completion (Actual)

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.
July 25, 2017

Study Completion (Actual)

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.
November 20, 2018

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).
December 2, 2015

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.
January 2, 2018

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.
January 3, 2018

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.
November 23, 2018

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.
November 21, 2018

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.
November 1, 2018

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.
  • 103-065-F

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.

Clinical Trials on Kidney Failure, Chronic

Clinical Trials on paclitaxel-coated balloon, IN. PACT(Invatec-Medtronic, Brescia, Italy)

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings