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Evaluation of a new polymer-coated paclitaxel-eluting stent for treatment of de novo lesions: six-month clinical and angiographic follow-up results of the APPLAUSE trial.

BACKGROUND
This trial assesses the safety and efficacy of the PicoElite stent (amg International GmbH, Raesfeld-Erle, Germany), a new paclitaxel-eluting polymer-based stent.


METHODS
This is a first-in-man, single-center pilot trial that randomized 30 patients with 35 de novo coronary lesions in a 2:1 proportion to either the paclitaxel-eluting PicoElite stent (PES group: 20 patients with 24 lesions) or the bare metal ArthosPico stent (BMS group: 10 patients with 11 lesions).


RESULTS
Baseline characteristics were similar in both groups, apart from younger patients in the PES group (mean age 63.5 years vs. 71.7 years in the BMS group; p = 0.032) and shorter lesion length in the PES group (9.56 mm vs. 14.25 mm in the BMS group; p = 0.02). In both groups, there was no difference in the primary endpoint of major adverse cardiac events (MACE) at 30-day follow up. There was a nonsignificant trend towards lower 6-month MACE and target lesion revascularization (TLR) rates in the PES group (10.5% PES vs. 40.0% in the BMS group for both; p = 0.143), and no stent thrombosis in the PES group. At 6-month angiographic follow up, the PES group demonstrated a significantly reduced in-stent binary restenosis rate (5.0% vs. 40.0%; p = 0.031), in-stent late loss (0.47 mm vs. 1.10 mm; p = 0.004), and in-segment late loss (0.72 mm vs. 1.16 mm; p = 0.016) as compared to the BMS group.


CONCLUSIONS
The 6-month results of the APPLAUSE study demonstrate the safety and efficacy of the paclitaxel-eluting PicoElite stent for de novo lesions, with a significant reduction in late loss and a trend towards less TLR compared to a bare metal control.