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Recruiting NCT06493292

Effectiveness of Endoluminal Treatment of Autologous Arteriovenous Endovascular Fistula Failure

— Observational Hemodialysis Access Failure

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Endovascular therapy.
Who it may be relevant to
Registry conditions: Hemodialysis Access Failure. Basic parameters: 18 years — 75 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
China
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Official title

Comparison of the Efficacy of Drug-Coated Balloons and Cutting Balloons in the Treatment of Autologous Arteriovenous Fistula Stenosis: A Multi-Center Prospective Real-World Study.

Overview

This study was aimed at comparing the efficacy and safety of cutting balloons versus drug-coated balloons in treating venous segment stenosis of autologous arteriovenous fistulas.This is a prospective, multi-center cohort study.

Detailed description

The study will recruit 180 patients with venous segment stenosis of autologous arteriovenous fistulas at multiple centers from June 2024 to December 2025. Patients will be divided into two cohorts based on the treatment method: the Cutting Balloon group and the Drug-Coated Balloon group. The primary outcomes observed will be the primary patency rates of the target lesion at 1, 3, 6, and 12 months post-operation, re-intervention rates of the target vessel, and the technical success rates and procedural success rates of the two devices, along with major adverse events during the perioperative period.

Interventions

  • Procedure Endovascular therapy
    Endovascular therapy is a minimally invasive interventional approach that utilizes the vascular system as a pathway to access and treat various pathological conditions within the body. By employing specialized catheters and devices, endovascular techniques enable precise delivery of therapeutic agents or interventional procedures directly to the target site, without the need for conventional open surgery.

Primary outcome measures

  • Clinically-driven target lesion re-intervention [Time frame: 1-month#3-month#6-month#12-month]
Secondary outcome measures (2)
  • Target lesion primary patency [Time frame: 1-month#3-month#6-month#12-month]
  • Target lesion assisted primary patency [Time frame: 1-month#3-month#6-month#12-month]

Eligibility criteria

Inclusion criteria

  • Subjects aged between 18 and 75 years.
  • Subjects possess a mature upper limb autologous arteriovenous fistula (AVF) and have undergone at least one hemodialysis session.
  • Target lesion must be located in the venous segment of the upper limb AVF.
  • Doppler ultrasound confirms that the target lesion stenosis is ≥50%, accompanied by at least one of the following clinical manifestations: elevated venous pressure during dialysis, abnormal fistula signs, significant reduction in blood flow (<200ml/min).
  • Guidewire and balloon successfully pass through the lesion and complete dilation. 6.Subjects or their legal representatives must understand the purpose of the trial, voluntarily participate in the clinical trial, and sign an informed consent form, while also being willing to adhere to the specific follow-up schedules set by this trial.

Exclusion criteria

  • Target lesion located in the arterial segment or anastomosis of the AVF.
  • Target lesion located in the lower limb AVF.
  • Subjects with previous stent implantation in the AVF.
  • Patients diagnosed with symptomatic central venous occlusive disease: AVF flow reduction accompanied by swelling of the ipsilateral limb, chest, or facial area, with DSA confirmation of central venous occlusive disease.
  • Subjects with two or more target lesions in the AVF (when two stenoses are less than 3 cm apart, they are considered as one target lesion).
  • Subjects with acute thrombosis in the AVF or who have undergone AVF thrombolysis or thrombectomy within the past 30 days.
  • Subjects who have undergone or plan to undergo surgical intervention on the AVF within 30 days.
  • Subjects with AVF infection or concurrent systemic active infection.
  • Subjects planning renal transplantation or switching to peritoneal dialysis within the next 12 months.
  • Subjects with diseases causing coagulopathy, such as thrombocytopenic purpura.
  • Subjects undergoing immunotherapy or suspected/diagnosed with vasculitis.
  • Subjects with allergies or contraindications to heparin or contrast agents.
  • Subjects who are pregnant or breastfeeding.
  • Subjects with a life expectancy of less than 12 months.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Observational model
Cohort

Study locations

China · 3 centers
  • First Affiliated Hospital of Zhengzhou University — Zhengzhou
  • The Second Affiliated Hospital of Nanjing Medical University — Nanjing
  • Renji Hospital — Shanghai

Identifiers

NCT: NCT06493292 · Drug-Coated/Cutting Balloons

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗