Alexza Pharmaceuticals announces filing of universal shelf registration statement with SEC

Alexza Pharmaceuticals, Inc. (Nasdaq: ALXA) announced today that it has filed a universal shelf registration statement with the Securities and Exchange Commission (SEC) that, if declared effective by the SEC, will allow the Company to sell, from time to time, up to $75 million of its common stock, preferred stock, debt securities and/or warrants, either individually or in units, in one or more offerings.  As of the date of this release, the Company has no specific plans to offer the securities covered by the registration statement and the Company is not required to offer the securities in the future pursuant to the registration statement.  The terms of any offering under the registration statement will be established at the time of the offering.  Proceeds from the sale of any securities will be used for the purposes described in a prospectus supplement filed at the time of an offering.  The universal shelf registration statement is intended to provide Alexza Pharmaceuticals with flexibility to raise funds from the offering of its securities in one or more offerings, subject to market conditions and the Company's capital needs.

A shelf registration statement relating to these securities was filed today with the SEC but has not yet become effective.  The securities offered by the Company pursuant to the registration statement may not be sold, nor may offers to buy the securities be accepted prior to the time the registration statement becomes effective.