Cubist Pharmaceuticals to Present at Morgan Stanley Healthcare Confere

    Business Editors/Healthcare Editors
    Morgan Stanley Healthcare Conference
    BIOWIRE2K

    LEXINGTON, Mass.--(BUSINESS WIRE)--April 27, 2005--Cubist Pharmaceuticals, Inc. (Nasdaq: CBST) will present at Morgan Stanley's Third Annual Global Healthcare Unplugged Conference on Wednesday, May 4th at 8:00 am ET. Michael W. Bonney, Cubist's President and CEO will be participating in the 'fireside chat' format.
    A live audio webcast of the presentation will be accessible through a link on Cubist's website at www.cubist.com. The presentation will be archived later that day.

    About Cubist

    Cubist Pharmaceuticals, Inc. is a biopharmaceutical company focused on the research, development and commercialization of antiinfective products that meet unmet medical needs. In the U.S., Cubist markets Cubicin(R) (daptomycin for injection), the first antibiotic in a new class of antiinfectives called lipopeptides. CUBICIN is currently the only once-daily bactericidal antibiotic approved in the U.S. with activity against both methicillin-susceptible and methicillin-resistant Staphylococcus aureus (MSSA and MRSA) in complicated skin and skin structure infections. Cubist's pipeline includes HepeX-B(TM), a monoclonal antibody biologic currently in the second of two Phase 2 trials to determine its potential for the prevention of infection by the Hepatitis B virus (HBV) in liver transplant patients, and research efforts focused on novel members of the lipopeptide class of molecules and on natural products discovery. Cubist is headquartered in Lexington, MA.

    Cubist Safe Harbor Statement

    Statements contained herein that are not historical fact may be forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, and such statements are subject to a variety of risks and uncertainties. There are a number of important factors that could cause actual results to differ materially from those projected or suggested in any forward-looking statements made by Cubist. These factors include, but are not limited to: (i) the level of acceptance of CUBICIN by physicians, patients, third-party payors, and the medical community generally; (ii) Cubist's ability to continue to develop, secure additional regulatory approvals for, and successfully market, CUBICIN; (iii) Cubist's expectations regarding our ability to continue to manufacture sufficient quantities of CUBICIN in accordance with current Good Manufacturing Practices; (iv) commercialization of products that are competitive with CUBICIN; (v) Cubist's ability to discover or in-license drug candidates; (vi) Cubist's ability to successfully develop drug candidates in its pipeline, including HepeX-B; (vii) Cubist's ability to successfully commercialize any product or technology developed by Cubist; (viii) Cubist's ability to establish and maintain successful manufacturing, sales and marketing, distribution, and development collaborations; (ix) legislative or regulatory changes adversely affecting Cubist or the biopharmaceutical industry; (x) Cubist's expectations regarding the future market demand and medical need for CUBICIN; (xi) Cubist's ability to protect its intellectual property and proprietary technologies; and (xii) Cubist's ability to finance its operations . Additional factors that could cause actual results to differ materially from those projected or suggested in any forward-looking statements are contained in Cubist's recent filings with the Securities and Exchange Commission, including those factors discussed under the caption "Risk Factors" in such filings.

    Cubist and Cubicin are registered trademarks of Cubist Pharmaceuticals, Inc.; HepeX-B is a trademark of XTL Biopharmaceuticals Ltd.

    Additional information can be found at Cubist's web site at www.cubist.com

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CONTACT: Cubist Pharmaceuticals, Inc. Eileen C. McIntyre, 781-860-8533 Eileen.mcintyre@cubist.com or Fleishman-Hillard, Inc. Christine Regan, 617-692-0522 reganc@fleishman.com

KEYWORD: MASSACHUSETTS TRACK INDUSTRY KEYWORD: PHARMACEUTICAL BIOTECHNOLOGY TRADESHOW SOURCE: Cubist Pharmaceuticals, Inc.

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