Optimer Pharmaceuticals Files $100 Million Shelf (OPTR)

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Optimer Pharmaceuticals, Inc. (NASDAQ" OPTR) has filed an open shelf registration last night with the SEC that will allow it to sell up to $100 million in any of the following types of securities:  Common Stock; Preferred Stock; Debt Securities; Warrants; Units.

The company is focused on discovering, developing and commercializing anti-infective products, and initial development efforts are to treat gastrointestinal infections and related diseases where current therapies have limitations.  The company currently has two late-stage anti-infective product candidates, OPT-80 and Prulifloxacin.

OPT-80 is the lead product candidate and is an antibiotic that is currently in two Phase III registration trials for the treatment of Clostridium difficile-infections, also known as Clostridium difficile-associated disease, the most common nosocomial diarrhea. Prulifloxacin is an antibiotic that is currently in two Phase III trials for the treatment of infectious diarrhea in travelers, a community-acquired infection often caused by a broad range of bacteria.  The company developing additional product candidates using its proprietary technology, including its OPopS drug discovery platform.

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Optimer shares are down 1.4% at $6.21 today, and its 52-week trading range is $5.90 to $10.42.  Its current market cap is $172.95 million.

Jon C. Ogg
March 28, 2008

Jon Ogg produces the Special Situation Investing Newsletter and he can be reached at jonogg@247wallst.com; he does not own securities in the companies he covers.