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JACC Cardiovasc Interv. 2012 Mar;5(3):323-30. doi: 10.1016/j.jcin.2012.01.008.

Long-term follow-up after treatment of coronary in-stent restenosis with a paclitaxel-coated balloon catheter.

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Klinik für Innere Medizin, III, Universitätsklinikum des Saarlandes, Homburg/Saar, Germany.



This study presents long-term clinical follow-up, including binary restenosis rate and major adverse cardiovascular events, of the PACCOCATH-ISR (Treatment of In-Stent Restenosis by Paclitaxel Coated PTCA Balloons) I and II trial.


The PACCOCATH-ISR trial was a first-in-human study with a drug-coated balloon catheter and the first study for the treatment of coronary ISR with a drug-coated balloon. So, far no long-term follow-up data have been presented.


This study enrolled 108 patients in a randomized, double-blinded multicenter trial on the efficacy and safety of a paclitaxel-coated balloon (3 μg/mm(2) balloon surface; PACCOCATH [Bayer AG, Germany]) compared with an uncoated balloon. The main inclusion criteria were a diameter stenosis of ≥ 70% and <30-mm length with a vessel diameter of 2.5 to 3.5 mm. The primary endpoint was angiographic late lumen loss in-segment after 6 months. Combined antiplatelet therapy was continued only for 1 month followed by treatment with aspirin alone.


During a follow-up of 5.4 ± 1.2 years, the clinical event rate was significantly reduced in patients treated with the drug-coated balloon (major adverse cardiovascular events: 59.3% vs. 27.8%, p = 0.009), which was mainly driven by the reduction of target lesion revascularization from 38.9% to 9.3% (p = 0.004).


Treatment of coronary ISR with paclitaxel-coated balloon catheters is safe and persistently reduces repeat revascularization during long-term follow-up. The initial results were sustained over the 5-year period. (Treatment of In-Stent Restenosis by Paclitaxel Coated PTCA Balloons [PACCOCATH ISR I]; NCT00106587. Treatment of In-Stent Restenosis by Paclitaxel Coated PTCA Balloons [PACCOCATH ISR II]; NCT00409981).

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