Optimer Pharmaceuticals, Inc. Reports First Quarter 2009 Financial Results

SAN DIEGO, May 7 /PRNewswire-FirstCall/ -- Optimer Pharmaceuticals, Inc. today announced its financial results for the first quarter ended March 31, 2009. Optimer reported a net loss for the first quarter of 2009 of $10.9 million, or $0.36 per share which was in line with the Company’s expectations. This compares to a net loss for the first quarter of 2008 of $7.9 million, or $0.28 per share. Research and development expenses in the first quarter of 2009 were $8.8 million compared to $6.9 million in the first quarter of 2008. The increase is primarily due to an increase in clinical development and regulatory expenses related to Optimer’s fidaxomicin and prulifloxacin programs.

As of March 31, 2009, Optimer held cash, cash equivalents and short-term investments of $62.6 million.

“We are off to a strong start in 2009,” said Michael N. Chang, Ph.D., Optimer’s President and CEO. “We announced plans to prepare a marketing application in Europe based on the results of the first fidaxomicin Phase 3 trial for Clostridium difficile infection. We also reported positive top-line results from the second prulifloxacin Phase 3 trial for the treatment of infectious diarrhea.”

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About Optimer Pharmaceuticals

Optimer Pharmaceuticals, Inc. is a biopharmaceutical company focused on discovering, developing and commercializing innovative anti-infective products to treat serious infections and address unmet medical needs. Optimer has two late-stage anti-infective product candidates under development. Fidaxomicin, formerly known as OPT-80, is the only antibiotic therapy currently in Phase 3 worldwide clinical development for Clostridium difficile infection. Prulifloxacin is an antibiotic which has completed two Phase 3 clinical trials for the treatment of travelers’ diarrhea, a form of infectious diarrhea. Additional information can be found at http://www.optimerpharma.com.

Forward-looking Statements

Statements included in this press release that are not a description of historical facts are forward-looking statements, including without limitation all statements related to the development of fidaxomicin and prulifloxacin, the timing of clinical trials and anticipated results, and plans related to regulatory filings, including a potential MAA for fidaxomicin. Words such as “believes,” “anticipates,” “plans,” “expects,” “intend,” “will,” “goal” and similar expressions are intended to identify forward-looking statements. The inclusion of forward-looking statements should not be regarded as a representation by Optimer that any of its plans will be achieved. Actual results may differ materially from those set forth in this release due to the risks and uncertainties inherent in Optimer’s business including, without limitation, risks relating to: the timing, progress and likelihood of success of its product research and development programs, the timing and status of its preclinical and clinical development of potential drugs, uncertainty regarding regulatory requirements for approval, the timing of regulatory submissions and the uncertainty regarding whether such submissions will be accepted or approved, and other risks detailed in Optimer’s filings with the Securities and Exchange Commission.

CONTACT: John Prunty, CFO & VP, Finance, or Christina Donaghy, Corporate
Communications Manager, both of Optimer Pharmaceuticals, Inc.,
+1-858-909-0736; or Jason I. Spark, Vice President of Porter Novelli Life
Sciences, +1-619-849-6005, for Optimer Pharmaceuticals, Inc.

Web site: http://www.optimerpharma.com/

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