Use of Implanting the Biotronik Passeo-18 Lux Drug Coated Balloon to Treat Failing Haemodialysis Arteriovenous Fistulas and Grafts. (SEMPER FI)

May 6, 2020 updated by: Singapore General Hospital

Use of Implanting the Biotronik Passeo-18 Lux Drug Coated Balloon to Treat Failing Hemodialysis Arteriovenous Fistulas and Grafts

The most common problem with haemodialysis arteriovenous fistulas (AVF) and arterio-venous grafts (AVG) is stenosis, which can lead to inadequate dialysis, and eventual access thrombosis. Conventional plain old balloon angioplasty is associate with high recurrence rates of stenosis and repeated interventions. The advent of successful drug-eluting technology in the treatment of the coronary vascular bed and subsequent positive accumulating evidence in the peripheral arterial circulation has prompted the use of drug coated balloons (DCB) in the access fistula circuit for venous stenosis and in-stent restenosis. Recent studies suggest that DCBs may significantly reduce re-intervention rates on native and recurrent lesions. The restenosis process is in part or in whole the result of neo-intimal hyperplasia (NIH) and NIH is considered the main culprit in access circuit target lesion stenosis. NIH is the blood vessel's healing response to the barotrauma from the angioplasty process. A critical component of NIH is the cellular proliferative stage with mononuclear leucocytes identified as the primary inflammatory cell type involved. The rationale for drug elution is to block the NIH response with an anti-metabolite such as paclitaxel. It is important to emphasize that the role of drug elution in the treatment of vascular stenosis is not to obtain a good haemodynamic and luminal result but to preserve a good result obtained during POBA from later restenosis due to NIH and minimise reinterventions and readmissions to hospital for what is a frail population of patients.

A meta-analysis performed by Khawaja et al. seemed to suggest that DCBs conferred some benefit in terms of improving target lesion primary patency (TLPP) in AVFs. An updated meta-analysis performed by our own institution recently showed that DCB appears to be a better and safe alternative to conventional balloon angioplasty (CBA) in treating patients with HD stenosis based on 6- and 12-months primary patency and increased intervention free period.

The Passeo-18 Lux (Biotronik Asia Pacific Pte Ltd (Singapore)) drug-coated balloon (DCB) is packaged with a low dose of paclitaxel. Recent studies have shown that low dose coating of paclitaxel with this DCB is useful for preventing restenosis, decrease lumen loss and target lesion revascularization in the peripheral vasculature6 but has not been tested in the dialysis access circuit.

Study Overview

Study Type

Observational

Enrollment (Anticipated)

100

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

      • Singapore, Singapore, 169856
        • Singapore General Hospital

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

Ages Eligible for Study

21 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients who have a native upper limb AVF or AVG, that is currently in use for haemodialysis, which has a significant inflow or outflow stenosis. Significant stenosis defined as diameter greater than 50% compared to adjacent normal segment and/or other evidence of AVF malfunction. Malfunction defined as the AVF performing inadequate dialysis and clinical signs of a failing dialysis access. Inadequate fistula volume flow - Qa as measured by ultrasound < 500mL/min as probably inadequate. Dialysis numbers: - Qb - a significant stenosis is suggested when the pump speed is < 200ml/min, venous pressure is > 140 mmHg and/or arterial pressure > - 100mmHg. Maximum of 2 discrete stenoses (separated by > 3cm) are allowed to be included.

Description

Inclusion Criteria:

  • Patient aged ≥21 years and ≤90 years
  • Native AVF was created more than 2 months prior to the index procedure and had undergone 10 or more hemodialysis sessions utilizing 2 needles
  • Target lesion location had to be located between the anastomosis to the axillary-subclavian vein junction, as defined by insertion of the cephalic vein.
  • On initial fistulogram, target lesion stenosis had to be >50% on angiographic assessment and in keeping with the clinical indicator for intervention
  • Stenosis had to be < 10cm in length to allow for potential treatment with one PCB (length 12 cm) only
  • Stenosis had to be initially treated successfully with a high-pressure plain balloon prior to PCB treatment as defined by:

    1. No clinically significant dissection
    2. No extravasation requiring treatment/stenting
    3. Residual stenosis ≤20% by angiographic measurement
    4. Ability to completely efface the lesion waist using the pre-dilation balloon
  • No more than one additional ("nontarget") lesions in the access circuit that had to be also successfully treated (≤30% residual stenosis) before drug elution. Separate lesion was defined by at least 3 cm in distance from the target lesion.
  • Reference vessel diameter 4mm - 8mm

Exclusion Criteria:

  • Women who were pregnant, lactating, or planning on becoming pregnant during the study
  • Subject had more than two lesions in the access circuit
  • Subject had a secondary non-target lesion that could not be successfully treated
  • Sepsis or active infection
  • Asymptomatic target lesions
  • A thrombosed access or an access with thrombosis treated ≤30 days prior to the index procedure
  • Surgical revision of the access site performed, planned or expected ≤ 3 months before or after the index procedure
  • Patients who were taking immunosuppressive therapy or are routinely taking ≥ 15 mg of prednisone per day;
  • Currently participating in an another investigational drug, biologic, or device study involving sirolimus or paclitaxel
  • Contraindication to aspirin or clopidogrel usage
  • Mental condition rendering the subject unable to understand the nature, scope and possible consequences of the study, or language barrier such that the subject is unable to give informed consent
  • Uncooperative attitude or potential for non-compliance with the requirements of the protocol making study participation impractical
  • Where final angioplasty treatment requires a stent or drug eluting balloon > 8mm in diameter
  • Metastatic cancer or terminal medical condition
  • Blood coagulation disorders
  • Limited life expectancy (< 12 months)
  • Allergy or other known contraindication to iodinated media contrast, heparin or paclitaxel

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
AVG/AVF Treated with Passeo-18 Lux
Patients with failing dialysis access, treated lesions located between the anastomosis to the axillary-subclavian vein junction.
Patients with significant inflow or outflow stenosis between the anastomosis to the axillary-subclavian vein junction, as defined by the insertion of the cephalic vein, who had undergone fistuloplasty with Passeo-18 Lux
Other Names:
  • Biotronik

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
6-month Target Lesion Primary Patency
Time Frame: 6-month post-procedure
Patency with no re-intervention to the area 5mm proximal to, within, and 5mm distal to, the index treatment segment. TLPP ends when any of the following occur: 1) clinically driven re-intervention to the treatment segment 2) thrombotic occlusions that includes the treatment segment 3) surgical intervention that excludes the treatment segment from the access circuit 4) abandonment of the AVF/AVG due to an inability to treat the treatment segment
6-month post-procedure

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Primary Patency
Time Frame: 12 months post-op
A duration of time measuring intra-access patency that starts from the date of angioplasty with Passeo-18 Lux DCB to the date of one of the following events: thrombosis, or any intervention to facilitate, maintain or re-establish patency (e.g. angioplasty)
12 months post-op
Primary assisted patency
Time Frame: 12 months post-op
Interval date of angioplasty with Passeo-18 Lux DCB until thrombosis
12 months post-op
Secondary Patency
Time Frame: 12 months post-op
A duration of time measuring intra-access patency that starts from the date of angioplasty with Passeo-18 Lux DCB to the date of vascular access abandonment
12 months post-op
Number of reinterventions
Time Frame: 12 months post-op
12 months post-op
Adverse Events
Time Frame: 12 months post-op
Intraoperative/perioperative complications, infections, revision surgeries required
12 months post-op

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Tang Tjun Yip, Sinapore General Hospital
  • Principal Investigator: Yap Hao Yun, Singapore 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 (Anticipated)

June 1, 2020

Primary Completion (Anticipated)

January 1, 2022

Study Completion (Anticipated)

June 1, 2022

Study Registration Dates

First Submitted

May 6, 2020

First Submitted That Met QC Criteria

May 6, 2020

First Posted (Actual)

May 11, 2020

Study Record Updates

Last Update Posted (Actual)

May 11, 2020

Last Update Submitted That Met QC Criteria

May 6, 2020

Last Verified

May 1, 2020

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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