ImmuneRegen BioSciences, Inc. Appoints James Robert Campbell, Ph.D., To Bioterrorism Preparedness Advisory Board

SCOTTSDALE, Ariz., Jan. 26 /PRNewswire-FirstCall/ -- Research and development biotechnology company ImmuneRegen BioSciences, a wholly owned subsidiary of IR BioSciences Holdings, Inc. , has named James Robert Campbell, Ph.D., Manager for Biosecurity and Biodefense, in the National Security Directorate at the Pacific Northwest National Laboratory (PNNL) as Senior Advisor to its Bioterrorism Preparedness Advisory Board.

Dr. Campbell retired from a career as a Navy Medical Service Corps microbiologist to join PNNL. His current academic appointments include Adjunct Professor in the Department of Preventive Medicine at the Uniformed Services University of Health Sciences, Adjunct Associate Professor of Microbiology at the University of Maryland, Adjunct Professor of Global Health at the George Washington University School of International Public Health and Clinical Research Professor at the University Of Hawaii School Of Medicine. In 2004 he was selected as the first Medical department officer to serve on the Chief of Naval Operations Strategic Studies Group, in Newport, Rhode Island. Before that he served in Navy Bureau of Medicine headquarters in Washington, D.C., as Liaison for Force Protection and Homeland Defense to the Chief of Naval Operations. Following that, he was assigned to London, U.K., as Commanding Officer of the Office of Naval Research Global, where he managed international Science and Technology operations in the $1.7 billion portfolio of the Chief of Naval Research.

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(TM), which are designed to be used as countermeasures for multiple homeland security bioterrorism threats. Homspera is derived from modified homeostatic 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 www.immuneregen.com.

Certain statements about the Company's future expectations, 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. The Company's actual results could differ materially from expected results as a result of a number of factors, including, without limitation, the Company's ability to raise capital when needed, the Company's ability to complete the development of its planned products, the ability of the Company to obtain FDA and other regulatory approvals permitting the sale of its products, the Company's ability to manufacture its products and provide its services, the impact of government regulations, patent protection on the Company's proprietary technology, product liability exposure, uncertainty of market acceptance, competition, technological change, and others set forth in the Company's periodic report on Form 10-Q for the three months ended September 30, 2005 as filed with the Securities and Exchange Commission.

Contact: W. Jason Grimley/Dan Spelling Spelling Communications 310-477-9500 jgrimley@spellcom.com

ImmuneRegen BioSciences

CONTACT: W. Jason Grimley, jgrimley@spellcom.com, or Dan Spelling, both ofSpelling Communications, +1-310-477-9500, for ImmuneRegen BioSciences

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