OLYMPIA Phase I Registry Confirms Safety and Performance of TAXUS(TM) Liberte(TM) Stent System in Complex Patients and Lesions

Initial Six-Month Results Show Positive Outcomes in Diabetic Patients; Safety Events for Diabetic Subset Lower Than Overall Patient Population

Boston Scientific Corporation (NYSE: BSX) today announced six-month results from Phase I of its global TAXUS OLYMPIA registry, supporting the safety and performance of the TAXUS(TM) Liberte(TM) coronary stent system in real-world patients. The results were announced at the European Society of Cardiology/World Congress of Cardiology 2006 in Barcelona, Spain. TAXUS

Phase I of the global OLYMPIA registry included 529 patients from seven countries in which TAXUS Liberte(1) has been approved. The Phase I enrolment consisted of diverse and high-risk populations, reflecting complex usage patterns in "real world" clinical practices. A majority of patients exhibited complex lesions or clinical characteristics, including, multi-vessel disease (49.1 per cent), prior myocardial infarction (45.9 per cent), left anterior descending lesions (54.0 per cent), small vessels (9.0 per cent), long lesions (18.9 per cent) and diabetes (49.9 per cent).

"The OLYMPIA Phase I six-month data are very impressive, especially considering the high degree of patient and procedural complexity across a broad range of real world cases," said Waqar H. Ahmed, M.D., M.S., FACC, at King Fahed Armed Forces Hospital in Jeddah, Saudi Arabia, and the Principal Investigator for the first phase of the OLYMPIA registry. "The data show consistency with results from other TAXUS clinical trials and registries, further supporting the strong performance of the TAXUS Liberte coronary stent system."

OLYMPIA Phase I six-month findings demonstrated an overall TAXUS Liberte related cardiac event rate of 2.3 per cent, including cardiac death (0.8 per cent), myocardial infarction (1.3 per cent), and TAXUS Liberte related re-intervention of the target vessel (1.3 per cent). The OLYMPIA Phase I registry reported a stent thrombosis rate of 1.5 per cent, including 1.1 per cent at 0-

In the diabetic subset (261 patients), OLYMPIA reported low rates of overall TAXUS Liberte related cardiac events (1.5 per cent), cardiac death (0.4 per cent), myocardial infarction (0.8 per cent), TAXUS Liberte related re-interventions (1.1 per cent) and stent thrombosis (1.1 per cent). Each of these outcomes for the high-risk diabetic patient group was lower than the rates for the overall population.

"Phase I of OLYMPIA shows excellent outcomes with TAXUS Liberte in patient subsets considered high risk for bare metal stenting, including diabetics, small vessels, long lesions and multiple stents," said Jeff Goodman, President of Boston Scientific International. "The results build on the impressive body of positive data from the TAXUS clinical program, especially in complex

Phase I of the OLYMPIA registry met its primary endpoint of TAXUS Liberte stent-related cardiac events at 30 days post implant. In addition, all secondary endpoints were met including; stent-related cardiac events at six months, target vessel-related cardiac events at 30 days and six months, and angiographic and technical success.

The global, prospective OLYMPIA registry plans to enrol up to 27,000 patients in multiple phases from more than 500 centres in 70 countries and is designed to analyse real-world clinical outcomes data for Boston Scientific's next-generation TAXUS Liberte paclitaxel-eluting stent system in the treatment of patients with coronary artery disease.

Boston Scientific is a worldwide developer, manufacturer and marketer of medical devices whose products are used in a broad range of interventional medical specialties. For more information, please visit: www.bostonscientific.com or

This press release contains forward-looking statements. Boston Scientific wishes to caution the reader of this press release that actual results may differ from those discussed in the forward-looking statements and may be adversely affected by, among other things, risks associated with new product development and commercialisation, clinical trials, intellectual property, regulatory approvals, competitive offerings, Boston Scientific's overall business strategy, and other factors described in Boston Scientific's filings

(1) TAXUS Liberte stent is not approved for use in the European Economic Area in vessel diameter < 2.25 mm

SOURCE: Boston Scientific Corporation

CONTACT: Geraldine Varoqui,

Boston Scientific PR Manager International,

Tel: +49-2102-489-461,

[email protected] , or

Tracy Paul,

BSC press office,

Tel: +44-207-13-3101,

[email protected]

Web site: http://www.bostonscientific.com

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