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Ampligen

Generic name: rintatolimod
Treatment for: Chronic Fatigue Syndrome

FDA Accepts Complete Response Submission Regarding the Ampligen New Drug Application for Chronic Fatigue Syndrome

PHILADELPHIA, Aug. 14, 2012 (GLOBE NEWSWIRE) -- Hemispherx Biopharma, Inc. (the "Company" or "Hemispherx") filed on July 31, 2012 with the U.S. Food and Drug Administration its complete response to the FDA's November 25, 2009 Complete Response Letter in support of Ampligen's New Drug Application for Chronic Fatigue Syndrome ("CFS"). (Please see the Company's press release and Form 8-K dated August 1, 2012.) On August 10, 2012, the FDA acknowledged in writing receipt of the Company's August 1, 2012, response stating, "We consider this a complete, class 2 response to our November 25, 2009, action letter. Therefore, the user fee goal date is February 2, 2013."

Thomas Equels, Vice Chairman of Hemispherx, stated, "We welcome this recent FDA confirmation and acceptance of our resubmission. At present, no drug has received FDA approval to treat CFS, a chronic, seriously debilitating disease suffered by millions of Americans. While the FDA's acceptance of our resubmission does not commit the Agency to approve the Ampligen NDA, the Company is pleased to have the opportunity for FDA review and consideration. Because the user fee goal date is February 2, 2013, we hope to receive a decision by the FDA on or before that date."

DISCLOSURE NOTICE: The information in this press release includes certain "forward-looking" statements (explained below), including statements about the remaining steps to potentially gain FDA approval of the Ampligen(R) NDA for the treatment of Chronic Fatigue Syndrome.
The final results of these and other ongoing activities could vary materially from Hemispherx's expectations and could adversely affect the chances for approval of the Ampligen(R) NDA. These activities and the ultimate outcomes are subject to a variety of risks and uncertainties, including but not limited to risks that (i) the FDA may ask for additional data, information or studies to be completed or provided prior to approval; and (ii) the FDA may require additional work related to the commercial manufacturing process to be completed prior to approval or may, in the course of the inspection of manufacturing facilities, identify issues to be resolved. Any failure to satisfy the FDA's requirements could significantly delay, or preclude outright, approval of the Ampligen NDA.

About Hemispherx Biopharma

Hemispherx Biopharma, Inc. is an advanced specialty pharmaceutical company engaged in the manufacture and clinical development of new drug entities for treatment of seriously debilitating disorders.
Hemispherx's flagship products include Alferon N Injection(R) (FDA approved for a category of sexually transmitted diseases) and the experimental therapeutics Ampligen(R) and Alferon(R) LDO. Because both
Ampligen(R) and Alferon(R) LDO are experimental in nature, they are not designated safe and effective by a regulatory authority for general use and are legally available only through clinical trials with the referenced disorders. Ampligen(R) is an experimental RNA nucleic acid being developed for globally important debilitating diseases and disorders of the immune system including Chronic Fatigue Syndrome.
Hemispherx's platform technology includes components for potential treatment of various severely debilitating and life threatening diseases. Hemispherx has patents comprising its core intellectual property estate and a fully commercialized product (Alferon N Injection(R)). The Company wholly owns and exclusively operates a GMP certified manufacturing facility in the United States for commercial products. For more information please visit www.hemispherx.net.

Forward-Looking Statements

To the extent that statements in this press release are not strictly historical, all such statements are forward-looking, and are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Words such as "hopes," "believes,"
"plans," "anticipates," and similar expressions are intended to identify forward-looking statements. These statements are based on the company's current beliefs and expectations and represent the Company's judgment as of the date of this release. The inclusion of forward-looking statements should not be regarded as a representation by Hemispherx that any of its plans will be achieved. These forward-looking statements are neither promises nor guarantees of future performance, and are subject to a variety of risks and uncertainties, many of which are beyond Hemispherx's control, which could cause actual results to differ materially from those contemplated in these forward-looking statements. Examples of such risks and uncertainties include those set forth in the Disclosure Notice, above, as well as the risks described in Hemispherx's filings with the Securities and Exchange Commission, including the most recent reports on Forms 10-K, 10-Q and 8-K. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and Hemispherx undertakes no obligation to update or revise the information contained in this press release, whether as a result of new information, future events or circumstances or otherwise revise or update this release to reflect events or circumstances after the date hereof.


CONTACT: Company/Investor Contact:
Dianne Will
Hemispherx Biopharma, Inc.
518-398-6222
ir@hemispherx.net

Posted: August 2012

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