Native Arteriovenous Fistula, Stenosis
Conditions
Brief summary
DeVA is a single blinded, prospective, multicentre RCT designed to determine the safety and effectiveness of a drug eluting angioplasty balloon compared with a standard angioplasty balloon in patients with symptomatic native AV fistula stenosis.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
* Arteriovenous (AV) fistulas with stenosis requiring percutaneous angioplasty identified on routine diagnostic imaging or causing clinical concern on dialysis. * Fistula has been in use for at least 1 month and is \> 6 weeks old * Brachiocephalic AV fistula * Brachiobasilic AV fistula * Radiocephalic AV fistula (both proximal and distal) * Participant \>/=18 yrs old * Index lesion is less then the length of the DEB, and the reference vessel diameter is appropriate for treatment with the size range of DEB (4mm - 8mm diameter) * Participant is able to give valid informed consent
Exclusion criteria
* Allergy to iodinated Intravenous contrast * Allergy to Paclitaxel * Prosthetic grafts * Long or tandem lesions that cannot be treated with a single DEB * Thrombosed Arterio-Venous fistulas * Women who are breastfeeding, pregnant or intending to become pregnant * Participants of child-bearing age who are unwilling to use a reliable form of contraception for the duration of the study.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Patency | 12 months | Primary end point is a composite of one or more of : * \>50% stenosis of index lesion requiring re-intervention * Re-intervention of index lesion due to clinical indications without 50% re-stenosis * Fistula failure |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Technical success | Time of baseline index intervention | Defined as \<30% residual stenosis using only the study balloon to which the patient was randomised |
| Assisted technical success of balloon angioplasty | At time of baseline index intervention | Defined as \<30% residual stenosis using adjunctive procedures in addition to study balloon |
| Successful use of fistula for dialysis | In the 12 months following baseline index intervention | Defined as successful use of the fistula for dialysis using 2 needles on at least one occasion |
| Secondary patency of the access circuit | In the 12 months following baseline index intervention | — |
Countries
United Kingdom