Use caution and monitor patients when administering FOLOTYN to patients with moderate to severe renal function impairment.Elevated liver function test abnormalities may occur and require monitoring. If liver function test abnormalities are greater-than or equal to Grade 3, omit or modify dose. Adverse Reactions The most common adverse reactions were mucositis (70%), thrombocytopenia (41%), nausea (40%), and fatigue (36%). The most common serious adverse events are pyrexia, mucositis, sepsis, febrile neutropenia, dehydration, dyspnea, and thrombocytopenia. Use in Specific Patient Population Nursing mothers should be advised to discontinue nursing or the drug, taking into consideration the importance of the drug to the mother. Drug Interactions Co-administration of drugs subject to renal clearance (e.g., probenecid, NSAIDs, and trimethoprim/sulfamethoxazole) may result in delayed renal clearance. Please see FOLOTYN® Full Prescribing Information at www.FOLOTYN.com. This press release may contain forward-looking statements regarding future events of Spectrum Pharmaceuticals and Allos Therapeutics that involve risks and uncertainties that could cause actual results to differ materially. These statements are based on management's current beliefs and expectations. Such forward-looking statements include statements regarding the success and strategic fit of the proposed combination of Spectrum Pharmaceuticals and Allos Therapeutics and the ability of Spectrum Pharmaceuticals to successfully integrate Allos Therapeutics. These forward-looking statements will depend on Spectrum Pharmaceuticals’ and Allos Therapeutics’ ability to identify, acquire, develop and commercialize a broad and diverse pipeline of late-stage clinical and commercial products, and to leverage the expertise of partners and employees around the world to assist us in the execution of our combined strategy. The forward-looking statements contained in this document are subject to risks and uncertainties which may cause actual results to differ materially from the forward-looking statements. These risks and uncertainties include, but are not limited to, risks and uncertainties are discussed in documents filed with the U.S. Securities and Exchange Commission by Allos Therapeutics, including the solicitation/recommendation statement, as well as the tender offer statement (including an offer to purchase, letter of transmittal, and related tender offer documents) that have been filed by Spectrum Pharmaceuticals and Sapphire Acquisition Sub, Inc. Spectrum Pharmaceuticals and Allos Therapeutics do not plan to update any such forward-looking statements and expressly disclaim any duty to update the information contained in this press release except as required by law.