NCT03388892

Brief Summary

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

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
44

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2015

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 29, 2015

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

December 2, 2015

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 25, 2017

Completed
5 months until next milestone

First Posted

Study publicly available on registry

January 3, 2018

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 20, 2018

Completed
Last Updated

November 23, 2018

Status Verified

November 1, 2018

Enrollment Period

2.5 years

First QC Date

December 2, 2015

Last Update Submit

November 21, 2018

Conditions

Keywords

AngioplastyDrug Eluting BalloonArteriovenous Graft

Outcome Measures

Primary Outcomes (1)

  • patent rate in percentage after PTA

    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 Outcomes (6)

  • The incidence of angiography-guided binary restenosis rate (≥50% of the diameter of the reference-vessel)

    1 year

  • The incidence of IVUS-guided binary restenosis rate (≥50% of the diameter of the reference-vessel)

    1 year

  • Change of AVG flow in liter per minute

    1 year

  • Change of AVG pressure in mmHg

    1 year

  • Time interval of patent AVG after PTA

    1 year

  • +1 more secondary outcomes

Other Outcomes (1)

  • Paclitaxel-coated balloon safety

    1 year

Study Arms (2)

Drug-Eluting Balloon

EXPERIMENTAL

PTA with DEB at venous anastomotic stenosis of AVG

Device: paclitaxel-coated balloon, IN. PACT(Invatec-Medtronic, Brescia, Italy)

Plain Balloon

ACTIVE COMPARATOR

PTA with PCB at venous anastomotic stenosis of AVG

Device: Plain Balloon

Interventions

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.

Drug-Eluting Balloon

Traditional Plain Balloon was used to dilate the venous anastomotic stenosis of arteriovenous graft (AVG) as the usual intervention

Plain Balloon

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Aged 18 to 90 years
  • Patients under hemodialysis via prosthetic arteriovenous graft in the arm
  • Vascular access was created for more than 30 days and used at least one successful session
  • Clinical failure for hemodialysis due to higher venous pressure or lower arterial flow
  • 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.
  • Reference diameter of venous anastomosis within 7 mm

You may not qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan University Hospital Hsinchu Branch

Hsinchu, Taiwan

Location

Related Publications (1)

  • Liao MT, Lee CP, Lin TT, Jong CB, Chen TY, Lin L, Hsieh MY, Lin MS, Chie WC, Wu CC. A randomized controlled trial of drug-coated balloon angioplasty in venous anastomotic stenosis of dialysis arteriovenous grafts. J Vasc Surg. 2020 Jun;71(6):1994-2003. doi: 10.1016/j.jvs.2019.07.090. Epub 2019 Oct 11.

MeSH Terms

Conditions

Kidney Failure, Chronic

Condition Hierarchy (Ancestors)

Renal Insufficiency, ChronicRenal InsufficiencyKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 2, 2015

First Posted

January 3, 2018

Study Start

January 29, 2015

Primary Completion

July 25, 2017

Study Completion

November 20, 2018

Last Updated

November 23, 2018

Record last verified: 2018-11

Locations