Allos Therapeutics to Present at Upcoming Investor Conferences

Allos Therapeutics, Inc. (NASDAQ: ALTH), a biopharmaceutical company committed to the development and commercialization of innovative anti-cancer therapeutics, today announced that members of the Company’s senior management will present at the following investor conferences during the month of April.

April 6, 2011Needham Healthcare ConferenceNew York Palace Hotel8:40 a.m. ET

April 7, 2011Leerink Swann Cancer Roundtable ConferenceThe Roosevelt HotelLymphoma & Leukemia Panel at 2:15 p.m. ETCompany Presentation at 3:50 p.m. ET

Attendance at these conferences is by invitation only. A live audio webcast of the Needham Healthcare Conference presentation can be accessed from and available for replay through a link on the home page and investor relations section of the Allos corporate website.

About Allos Therapeutics

Allos Therapeutics, Inc. (Nasdaq: ALTH) is a biopharmaceutical company committed to the development and commercialization of innovative anti-cancer therapeutics. Allos is currently focused on the development and commercialization of FOLOTYN® (pralatrexate injection), a folate analogue metabolic inhibitor. FOLOTYN is the first and only drug approved in the U.S. for the treatment of patients with relapsed or refractory peripheral T-cell lymphoma. Allos is also developing FOLOTYN in other hematologic malignancies and solid tumors. Allos retains exclusive worldwide rights to FOLOTYN for all indications. Allos is headquartered in Westminster, CO. For additional information, please visit www.allos.com.

Safe Harbor Statement

The anticipated presentation will contain forward-looking statements that involve significant risks and uncertainties. Additional information concerning these forward-looking statements and other factors that may cause actual results to differ materially from those anticipated in the forward-looking statements is contained in the "Risk Factors" section of the Company's Annual Report on Form 10-K for the year ended December 31, 2010 and in the Company's other periodic reports and filings with the Securities and Exchange Commission. The Company cautions investors not to place undue reliance on the forward-looking statements contained in the presentation. All forward-looking statements are based on information currently available to the Company on the date thereof, and the Company undertakes no obligation to revise or update these forward-looking statements to reflect events or circumstances after the date of these presentations, except as required by law.