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Abstract
To report a subgroup analysis comparing safety and effectiveness outcomes in Japanese and non-Japanese patients as part of a prospective, multinational, randomized controlled trial (ClinicalTrials.gov identifier NCT00120406) evaluating a paclitaxel-coated drug-eluting stent (DES) compared to percutaneous transluminal angioplasty (PTA) for treating peripheral artery disease.Patients were randomly assigned to primary DES or PTA. In the Japanese cohort, 27 patients (21 men; mean age 71.2±9.6 years) were randomized to PTA and 25 patients (19 men; mean age 69.8±10.2 years) to primary DES. In the non-Japanese cohort, 211 patients (131 men; mean age 67.3±10.6 years) were randomized to PTA and 211 patients (136 men; mean age 67.6±9.5 years) to primary DES. Outcome measures included event-free survival (EFS), freedom from target lesion revascularization (TLR), patency, stent fracture, and sustained clinical benefit through 2 years.Safety and effectiveness outcomes were similar in the Japanese and non-Japanese cohorts, although the outcomes in the Japanese cohort treated with primary DES were numerically better. In the DES group, the 2-year EFS was 92.0% vs. 85.0% (p=0.61), freedom from TLR was 96.0% vs. 85.5% (p=0.55), primary patency was 80.0% vs. 74.3% (p=0.61), and clinical benefit was sustained in 88.5% vs. 80.5% of patients (p=0.31) in the Japanese and non-Japanese cohorts, respectively. Stent fractures were seen in 4 of 457 stents at 12 months: 3 in the Japanese cohort and 1 in the non-Japanese cohort.The subgroup analysis comparing Japanese and non-Japanese patients supports the safety and effectiveness of the paclitaxel-coated DES in Japanese patients with stenotic lesions in the femoropopliteal arteries. The lack of major differences associated with ethnicity in these 2-year outcomes supports the validity and value of multinational clinical trials.
View details for DOI 10.1583/14-4753.1
View details for PubMedID 25290792