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Title: Paclitaxel-Eluting Balloon Versus Standard Balloon Angioplasty in In-Stent Restenosis of the Superficial Femoral and Proximal Popliteal Artery: 1-Year Results of the PACUBA Trial.
Author: Kinstner CM, Lammer J, Willfort-Ehringer A, Matzek W, Gschwandtner M, Javor D, Funovics M, Schoder M, Koppensteiner R, Loewe C, Ristl R, Wolf F.
Journal: JACC Cardiovasc Interv; 2016 Jul 11; 9(13):1386-92. PubMed ID: 27388828.
Abstract:
OBJECTIVES: The hypothesis that paclitaxel-eluting balloon angioplasty provides higher 1-year patency rates in femoropopliteal artery in-stent restenosis compared with standard percutaneous transluminal angioplasty (PTA) was tested. BACKGROUND: Several trials have demonstrated that paclitaxel-eluting balloon angioplasty reduces late luminal loss in comparison with PTA. METHOD: In a prospective, randomized, single-blind, dual-center study, 74 patients with symptomatic peripheral artery disease due to in-stent restenosis were treated with either paclitaxel-based drug-eluting balloon (DEB) angioplasty (n = 35) or standard PTA (n = 39). Clinical outcomes and patency rates were assessed at 1, 6, and 12 months. RESULTS: The mean lesion length was 17.3 ± 11.3 cm in the DEB group and 18.4 ± 8.8 cm in the PTA group. A single major complication (bleeding) was observed once (1.4%). The mean ankle-brachial index before endovascular treatment was 0.65 ± 0.16 in both groups and 0.79 ± 0.2 versus 0.84 ± 0.3 (p = 0.70, Student t test) in the DEB versus PTA group at 12 months. The 12-month primary patency rates were 40.7% (95% confidence interval [CI]: 0.26 to 0.64) versus 13.4% (95% CI: 0.05 to 0.36) (log-rank p = 0.02) in the DEB versus PTA group. The odds ratio for PTA over DEB angioplasty for experiencing an event was estimated at 2.8 (95% CI: 1.2 to 6.6). Freedom from clinically driven target lesion revascularization was 49.0% (95% CI: 0.32 to 0.75) versus 22.1% (95% CI: 0.10 to 0.48) (log-rank p = 0.11) in the DEB versus PTA group. Clinical improvement by ≥1 Rutherford-Becker category was 68.8% versus 54.5% (p = 0.87) in the DEB versus PTA group at 12 months. CONCLUSIONS: When treating peripheral artery disease in patients with in-stent restenosis in the femoropopliteal artery, paclitaxel-eluting balloon angioplasty provides significantly higher patency rates than standard PTA. (Paclitaxel Balloon Versus Standard Balloon in In-Stent Restenoses of the Superficial Femoral Artery [PACUBA I Trial] [PACUBA 1]; NCT01247402).

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