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SYNTAX substudy shows positive outcomes for left main patients treated with TAXUS(R) Express(2)(R) Stent System

^{Published on 2009-05-19 14:48:39, Last Modified on 2009-05-19 14:50:56 - Market Wire}
 

 VANCOUVER, May 19 /CNW/ - Angiotech Pharmaceuticals, Inc. (NASDAQ: ANPI, TSX: ANP) today announced that its corporate partner, Boston Scientific Corporation (NYSE: BSX) has reported positive outcomes from a substudy of patients with left main coronary disease who were treated with the TAXUS(R) Express(2)(R) Paclitaxel-Eluting Coronary Stent System. SYNTAX-LE MANS is a substudy of the landmark SYNTAX trial, the first randomized, controlled clinical trial to compare percutaneous coronary intervention (PCI) using the TAXUS Stent to coronary artery bypass graft (CABG) surgery in patients with left main disease and/or significant narrowing of all three coronary arteries (three-vessel disease). The substudy data were presented by A. Pieter Kappetein, M.D., Ph.D., at the annual EuroPCR Scientific Program in Barcelona. SYNTAX-LE MANS compares late angiographic and clinical outcomes in 263 patients with left main disease (149 treated with the TAXUS Stent and 114 treated with CABG). It is designed to assess 15-month patency (vessel openness) and the safety of stents and grafts in this high-risk population; it includes separate primary endpoints for each treatment arm. For PCI patients, the primary endpoint is the rate of long-term patency (defined here as (less than)50% stenosis) of the treated lesion sites. For CABG patients, the primary endpoint is the ratio of obstructed/occluded grafts (defined here as (greater than or equal to)50% stenosis) to total placed grafts. Results were presented separately for each group, and no formal statistical inferences between the two groups were made due to the different primary endpoints. Results were also broken out by left main lesion location, including distal and non-distal. For those patients receiving a TAXUS Stent, the patency rate for the treated lesion was 92 percent. Restenosis was more common with distal lesions (90% patency) compared with non-distal lesions (98% patency). Reported in-stent late loss was low at 0.2 mm for non-distal lesions. The reported 15-month MACCE rate (all-cause death, stroke, myocardial infarction and revascularization) for the TAXUS Stent patients was 13 percent, driven primarily by a nine percent repeat revascularization rate. For CABG patients, the overall obstruction/occlusion ratio at 15 months was 16 percent, with six percent of grafts obstructed in the range of (greater than or equal to)50% to (less than)100%, and 10 percent of grafts occluded 100%. On a per patient basis, the obstruction/occlusion ratio was 27 percent, with nine percent of patients having a graft obstructed in the (greater than or equal to)50% to (less than)100% range and 18 percent of patients having a graft occluded 100%. The reported MACCE rate for CABG patients at 15 months was nine percent. "The data announced today from SYNTAX-LE MANS will offer important insights for doctors as they evaluate treatment options for challenging left main patients," said Keith Dawkins, M.D., Associate Chief Medical Officer of Boston Scientific. "We are encouraged by the high stent patency rate at 15 months, which increases our confidence in the application of PCI in this high-risk population. The results support previously announced outcomes with PCI and CABG in patients with left main disease." The safety and effectiveness of the TAXUS Express(2) Stent System have not been established in patients with left main or three-vessel disease. 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For a more thorough discussion of the risks associated with our business, see the "Risk Factors" section in our annual report for the year ended December 31, 2008 filed with the SEC on Form 10-K, and our quarterly report for the three months ended March 31, 2009 filed with the SEC on Form 10-Q. Given these uncertainties, assumptions and risk factors, readers are cautioned not to place undue reliance on such forward-looking statements. Except as required by law, we disclaim any obligation to update any such factors or to publicly announce the result of any revisions to any of the forward-looking statements contained in this press release to reflect future results, events or developments. About Angiotech Pharmaceuticals Angiotech Pharmaceuticals, Inc. is a global specialty pharmaceutical and medical device company with over 1,500 dedicated employees. Angiotech discovers, develops and markets innovative treatment solutions for diseases or complications associated with medical device implants, surgical interventions and acute injury. To find out more about Angiotech (NASDAQ: ANPI, TSX: ANP), please visit our website at [ www.angiotech.com ].

For further information: DeDe Sheel, Investor Relations and Corporate Communications, Angiotech Pharmaceuticals, Inc., (415) 293-4412, [ dede.sheel@fdashtonpartners.com ]