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Clinical Trial Summary

Drug-coated balloon (DCB) angioplasty has been shown to be superior to POBA in the treatment of stenosis in AVF. This is because the very intervention used to treat underlying stenosis by POBA can induce vascular injury and accelerate intimal hyperplasia, resulting in rapid restenosis and need for repeated procedure to maintain vessel patency. The anti-proliferative drug that is coated on the surface of balloon is released to the vessel wall during balloon angioplasty and blunt the acceleration of intimal hyperplasia response, resulting in improved primary patency after angioplasty. Additionally, unlike stents, DCB does not leave a permanent structure that may impede future surgical revision. Recent randomized control trials (RCT) have shown the superiority of paclitaxel durg-coated balloon (PDCB) over POBA in the treatment of stenosis in AVFs. In a large multicenter RCT, PDCB was demonstrated to result in a 6-month target lesion primary patency of 82.2% compared to 59.5% for POBA. However, concerns had also arisen recently in the use of PDCB. In large lower limb studies involving the use of paclitaxel devices, meta-analysis by Katsanos et al had revealed increased late risk mortality in patient that are treated with PDCB or paclitaxel-coated stent. Sirolimus drug-coated balloon (SDCB) is the new generation of drug eluting balloons that are available in the market. Compared to paclitaxel, sirolimus is cytostatic in its mode of action with a high margin of safety. It has a high transfer rate to the vessel wall and effectively inhibit neointimal hyperplasia in the porcine coronary model. The effectiveness of SDCB in patients with dialysis access dysfunction has been shown in a small pilot study in AVF stenosis and AVG thrombosis. SAVE AVF registry ams to assess the efficacy and safety of SDCB vs PDCB angioplasty.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT05333640
Study type Observational [Patient Registry]
Source Singapore General Hospital
Contact Charyl Yap
Phone 6576 7986
Email Charyl.yap.j.q@sgh.com.sg
Status Recruiting
Phase
Start date April 18, 2022
Completion date April 30, 2024

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