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AVEO And Astellas Announce Initiation Of Patient Enrollment In Phase 2 Trial Of Tivozanib In Combination With Paclitaxel In Patients With Advanced Triple Negative Breast Cancer


BATON-BC is a double-blind, placebo-controlled, randomized (2:1 tivozanib/placebo), multicenter study that will enroll approximately 147 patients at 50 sites worldwide. The trial compares PFS of triple negative breast cancer patients treated with tivozanib in combination with paclitaxel versus placebo in combination with paclitaxel. Secondary objectives include evaluation of objective response rate, overall survival and safety. Additional exploratory objectives include the evaluation of potential tumor biomarkers predictive of tumor sensitivity and/or resistance to tivozanib in combination with paclitaxel and effectiveness of tivozanib in combination with paclitaxel in defined intrinsic molecular breast cancer subtypes.

About the AVEO/Astellas Collaboration

In February 2011, AVEO and Astellas entered into a worldwide agreement to develop and commercialize tivozanib outside of Asia for the treatment of a broad range of cancers. Tivozanib, AVEO's lead investigational drug, is a potent, selective, long half-life inhibitor of all three VEGF receptors that is designed to optimize VEGF blockade while minimizing off-target toxicities. Subject to regulatory approval, AVEO will lead commercialization of tivozanib in North America and Astellas will lead commercialization of tivozanib in the European Union (EU).

About Astellas

Astellas Pharma Inc., located in Tokyo, Japan, is a pharmaceutical company dedicated to improving the health of people around the world through the provision of innovative and reliable pharmaceuticals. Astellas has approximately 17,000 employees worldwide. The organization is committed to becoming a global category leader in Urology, Immunology (including Transplantation) and Infectious Diseases, Oncology, Neuroscience and DM Complications and Kidney Diseases. For more information on Astellas Pharma Inc., please visit the company website at

About AVEO

AVEO Oncology (NASDAQ: AVEO) is a cancer therapeutics company committed to discovering, developing and commercializing targeted therapies to impact patients' lives. AVEO's proprietary Human Response Platform TM provides the company unique insights into cancer biology and is being leveraged in the discovery and clinical development of its cancer therapeutics. For more information, please visit the company's website at

Cautionary Note Regarding Forward-Looking Statements

This press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995 that involve substantial risks and uncertainties. All statements, other than statements of historical facts, contained in this press release are forward-looking statements. The words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “target,” “potential,” “could,” “should,” “seek,” or the negative of these terms or other similar expressions, are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. These forward-looking statements include, among others, statements about: tivozanib’s potential role in treating patients with triple negative breast cancer; the BATON-BC trial improving AVEO’s understanding of triple negative breast cancer; the estimated enrollment of BATON-BC; assessing biomarkers to predict clinical response to tivozanib in patients with triple negative breast cancer; developing medicines that revolutionize the methods used to treat cancer patients; plans by AVEO and Astellas to commercialize tivozanib in North America and the EU, respectively; expanding the development of tivozanib in additional solid tumor types; and AVEO’s plans to leverage its Human Response Platform. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements that AVEO makes due to a number of important factors, including risks relating to: whether the results of AVEO’s Phase 3 TIVO-1 trial ( TIvozanib Versus s Orafenib in 1 st line advanced RCC) are sufficient to obtain marketing approval for tivozanib, which turns on the ability of AVEO to demonstrate to the satisfaction of the FDA or comparable foreign regulatory authorities the safety and efficacy of tivozanib based upon the findings of TIVO-1, including its data with respect to PFS, the rate of adverse events, overall survival and other information that the FDA may determine to be relevant to approvability; AVEO’s ability to demonstrate in subsequent trials any safety and efficacy it demonstrated in earlier trials of tivozanib; ongoing regulatory requirements with respect to the approval of tivozanib, including the risk that the FDA or any comparable foreign regulatory agency could require additional positive clinical trials as the basis for product approval; AVEO’s ability to obtain and maintain adequate protection for intellectual property rights relating to its product candidates and technologies; unplanned operating expenses; AVEO’s ability to raise the substantial additional funds required to achieve its goals; adverse general economic and industry conditions; competitive factors; AVEO’s ability to maintain its collaboration with Astellas; AVEO’s and Astellas’ ability to successfully launch and commercialize tivozanib if and when it may be approved for commercialization; and those risks discussed in the section titled “Risk Factors” and elsewhere in AVEO’s most recent Quarterly Report on Form 10-Q and in its other filings with the Securities and Exchange Commission. The forward-looking statements in this press release represent AVEO’s views as of the date of this press release. AVEO anticipates that subsequent events and developments will cause its views to change. However, while AVEO may elect to update these forward-looking statements at some point in the future, it specifically disclaims any obligation to do so. You should, therefore, not rely on these forward-looking statements as representing AVEO’s views as of any date subsequent to the date of this press release.

1 Mayer, EL et al. Combination of tivozanib (AV-951) with weekly paclitaxel for metastatic breast cancer: Results of a phase I study. J Clin Oncol 29: 2011 (suppl; abstr 1092).

2 Carey LA, Perou CM, Livasy CA et al. Race, breast cancer subtypes, and survival in Carolina Breast Study. JAMA 2006; 295:2492-2502.

3 Dent R, Trudeau M, Pritchard KI et al. Triple-negative breast cancer: clinical features and patterns of recurrence. Clin. Canc. Res. 2007; 13:4429-4434.

Copyright Business Wire 2010
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