Contact:

RegeneRx:
J.J. Finkelstein
jjfnk@regenerx.com
301.280.1992

RegeneRx Biopharmaceuticals, Inc. (NYSE Alternext:RGN) announced today an article entitled “Experimental drug promotes healing in patients with non-healing corneal ulcers,” was published in Ophthalmology Times, Vol. 34, No. 6, Mar 2009. The article describes the data generated by Dr. Steven Dunn, a corneal specialist in Detroit, Michigan, in patients with neurotrophic keratitis caused primarily by the herpes zoster virus and previously reported by the Company. The article may be accessed by pasting the following web address into your web browser:

http://ophthalmologytimes.modernmedicine.com/ophthalmologytimes/Modern+Medicine+Now/RGN-259-promotes-healing-in-patients-with-non-heal/ArticleStandard/Article/detail/589243?searchString=Rgn-137

About RegeneRx Biopharmaceuticals, Inc.
RegeneRx is focused on the discovery and development of novel peptides to accelerate tissue and organ repair. Currently, RegeneRx is developing three product candidates, RGN-137, RGN-259 and RGN-352 for dermal, ophthalmic, and cardiovascular tissue repair, respectively. RegeneRx is also developing RGN-457 for use in pulmonary indications such as cystic fibrosis. These product candidates are based on Tβ4, a synthetic copy of a 43-amino acid, naturally occurring peptide, in part, under an exclusive world-wide license from the National Institutes of Health. RegeneRx holds over 60 world-wide patents and patent applications related to novel peptides.

RegeneRx Technology Background
Tβ4 is a synthetic version of a naturally occurring peptide present in virtually all human cells. It is a first-in-class multi-faceted molecule that promotes endothelial cell differentiation, angiogenesis in dermal tissues, keratinocyte migration, collagen deposition, and down-regulates inflammation. RegeneRx has identified several molecular variations of Tβ4 that may affect the aging of skin, among other properties, and could be important candidates as active ingredients in pharmaceutical and consumer products. Researchers at the National Institutes of Health, and at other academic institutions in the U.S., have published scientific articles indicating Tβ4’s in vitro and in vivo efficacy in accelerating wound healing and tissue protection under a variety of conditions. Abstracts of scientific papers related to Tβ4's mechanisms of action may be viewed at RegeneRx's web page: www.regenerx.com .

Forward-Looking Statements
This press release contains certain forward-looking statements that involve risks and uncertainties that could cause actual results to be materially different from historical results or from any future results expressed or implied by such forward-looking statements. Examples of such forward-looking statements include statements concerning any future development efforts for RGN-259 as a treatment for ophthalmic indications such as neurotrophic ulcers and corneal surgeries, the results of future trials involving Tβ4, and the therapeutic potential of Tβ4 for dermal, ophthalmic and cardiovascular wounds or pulmonary indications, or its use in other pharmaceutical or consumer products. Factors that may cause actual results to differ materially from any future results expressed or implied by any forward-looking statements include the risk that RegeneRx’s product candidates may not demonstrate safety and/or efficacy in its ongoing or future clinical trials and other development efforts, including its trials and/or other development efforts related to RGN-137, RGN-259, RGN-352 and RGN-457, the risk that RegeneRx or its collaborators will not obtain approval to market RegeneRx’s product candidates in the U.S. or abroad, the risks associated with RegeneRx’s need for additional financing to meet capital requirements necessary for the further development and commercialization activities relating to RegeneRx’s product candidates, the risks associated with protecting RegeneRx’s intellectual property, or that RegeneRx will not be able to obtain patent protection, or that its issued patents will be infringed, and such other risks described in RegeneRx’s quarterly report on Form 10-Q for the period ended September 30, 2008, and other filings RegeneRx makes with the SEC. Any forward-looking statements are made pursuant to Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and, as such, speak only as of the date made. RegeneRx undertakes no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise.

SOURCE: RegeneRx Biopharmaceuticals, Inc.

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