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BioRexis Completes $30 Million Series B Financing
Newswire

March 11, 2004
King of Prussia PA,– BioRexis Pharmaceutical Corporation, a privately-held biopharmaceutical company, announced today that it has raised $30 million in a Series B private equity financing. The financing was oversubscribed and included new investors Prism Venture Partners, Anthem Capital Management, Johnson & Johnson Development Corporation, Gund Investment Corporation and existing investors Quaker BioVentures, ProQuest Investments and Tullis-Dickerson & Company. BioRexis has raised over $38 million since its inception in July 2002.

The funds raised in the Series B round will be used to advance BioRexis’ pipeline of biopharmaceuticals through preclinical testing and clinical trials. BioRexis’ proprietary protein engineering technology provides novel protein and peptide drugs with superior pharmacology and Trans-bodiesTM to replace conventional monoclonal antibodies (“MAbs”). BioRexis’ technology involves fusion of peptides and proteins to a modified version of the blood serum protein transferrin, thereby prolonging their circulatory half-life, improving efficacy, decreasing side effects and reducing dosage. The company’s lead product is a peptide fusion, currently in preclinical trials for type 2 diabetes. Additional biopharmaceutical products under development include a novel longer-acting interferon and an erythropoietin receptor agonist.

“We are very impressed with the management team at BioRexis and the fact that they have previously built a highly successful, similar company,” stated Gerry Schaafsma, a general partner of Anthem Capital Management. He added, “BioRexis’ protein engineering technology has the potential to develop many blockbuster drug candidates in relatively short time frames, thus generating rapid value creation for shareholders.”

BioRexis’ CEO, David R. King, said “We are delighted to have attracted such a high caliber group of investors and appreciate their endorsement of our technology and strategic direction. This financing will enable us to accelerate the advancement of our preclinical programs into the clinic so that we can commercialize proprietary improved biopharmaceuticals using our protein engineering technology and manufacturing systems.”

About BioRexis Pharmaceutical Corporation
BioRexisTM Pharmaceutical Corporation develops novel, extended half-life protein and peptide drugs with superior pharmacology and Trans-bodiesTM to replace conventional monoclonal antibodies (“MAbs”). Both can be produced in highly efficient manufacturing systems that use Saccharomyces cerevisiae (baker’s yeast) instead of expensive mammalian cell culture.

Many proteins and peptides face difficulties in development and commercialization due to their poor pharmacokinetic profiles, requiring both high and frequent dosing which often leads to side effects. This reduces therapeutic benefit and can limit the range of indications for which the drug can be used. High dosing per patient also places a further burden on already limited manufacturing capacity, driving up the cost of treatment (as in the case of MAbs and other high priced biopharmaceuticals).

BioRexis solves these problems through its proprietary protein engineering approach, using a natural variant of the human serum protein transferrin as a carrier protein and as a scaffold for the effective presentation of proteins and peptides. BioRexis developed and solely owns this technology, which gives it great flexibility in transactions with pharmaceutical companies. For additional information, please visit www.biorexis.com.

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