ImmuneRegen BioSciences, Inc. to Present Homspera(TM) at 2007 BARDA Industry Day

SCOTTSDALE , Ariz., July 23 /PRNewswire-FirstCall/ -- ImmuneRegen BioSciences, a wholly owned subsidiary of IR BioSciences Holdings, Inc. (OTC Bulletin Board: IRBO), today announced it will participate in the 2007 Biomedical Advanced Research and Development Authority (BARDA) Industry Day, on Aug. 3 , in Washington, DC . ImmuneRegen Senior Director of Product Development and Regulatory Affairs, Hal Siegel , Ph.D. will give a presentation on its compound Homspera(TM) and its possible effectiveness at mitigating the deleterious effects of lethal radiation and various biological insults.

The presentation will discuss the progress of current research and development activities pertaining to Homspera as a possible treatment for Acute Radiation Syndrome (ARS), Anthrax infection, and pandemic influenza. Dr. Siegel will present the test protocols as well as publicly available study results.

The 2007 BARDA Industry Day is designed to provide an open forum for companies interested in working with the Federal Government to showcase technological advances in medical countermeasures to man made and naturally occurring threats. Presenters will demonstrate the progress of current activities in advanced research and development of medical countermeasures that will contribute to the success of the HHS Pandemic Influenza Plan, Project BioShield, BARDA, and the HHS Public Health Emergency Medical Countermeasures Enterprise (PHEMCE) Strategy and Implementation Plan.

About Homspera(TM)

Homspera is a generic name used by the Company to describe the synthetic peptide Sar9, Met (O2)11-Substance P. Sar9, Met (O2)11-Substance P is an analog of the naturally occurring human neuropeptide Substance P, which can be found throughout the body, including in the airways of humans and many other species. All of the Company's research and development efforts are early, pre-clinical stage and Homspera(TM), as Viprovex(R) and Radilex(TM), has only undergone exploratory studies to evaluate its biological activity in small animals.

About ImmuneRegen BioSciences, Inc.

IR BioSciences Holdings, Inc., through its wholly owned subsidiary ImmuneRegen BioSciences, Inc., is a development stage biotechnology company focused on the research and development of Homspera(TM) and its derivatives Radilex(TM) and Viprovex(R), which are designed to be used as countermeasures for multiple homeland security bioterrorism threats. Homspera is derived from Substance P, a naturally occurring peptide immunomodulator and homeostatic compound with the dual effect of improving pulmonary function and the stimulation of the human immune system. For more information, please visit the company's website at

Statements about the Company's future expectations, including statements about the potential for the Company's drug candidates, science and technology, and all other statements in this press release other than historical facts, are "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934, and as that term is defined in the Private Securities Litigation Reform Act of 1995. The Company intends that such forward-looking statements be subject to the safe harbors created thereby. These future events may not occur as and when expected, if at all, and, together with the Company's business, are subject to various risks and uncertainties. The Company's actual results could differ materially from expected results as a result of a number of factors, including the fact that preliminary results involved only a small number of test mice, the subsequent investigations were limited in scope, the uncertainties inherent in research and development collaborations, pre-clinical and clinical trials and product development programs, (including, but not limited to the fact that future results or research and development efforts may prove less encouraging than current results or cause side effects not observed in current pre-clinical trials) the evaluation of potential opportunities, the level of corporate expenditures and monies available for further studies, capital market conditions, and others set forth in the Company's periodic report on Form 10-QSB for the three months ended March 31, 2007 and on Form 10-KSB for the twelve months ended December 31, 2006 as filed with the Securities and Exchange Commission. There are no guarantees that any of the Company's proposed products will prove to be commercially successful. The Company undertakes no duty to update forward-looking statements.

SOURCE ImmuneRegen BioSciences