Optimer Pharmaceuticals, Inc. Reports Second Quarter 2009 Financial Results

SAN DIEGO, Aug. 5 /PRNewswire-FirstCall/ -- Optimer Pharmaceuticals, Inc. today reported financial results for the second quarter ended June 30, 2009. Optimer reported a net loss for the second quarter of 2009 of $12.4 million, or $0.37 per share, which was in line with the Company’s expectations. This compares to a net loss for the second quarter of 2008 of $8.1 million, or $0.29 per share. The increase in net loss was primarily due to higher research and development expenses. Research and development expenses in the second quarter of 2009 were $10.5 million, compared to $6.2 million in the second quarter of 2008. The increase was primarily due to manufacturing scale-up expenses and expenses to prepare regulatory filings related to the Company’s fidaxomicin and prulifloxacin programs.

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As of June 30, 2009, Optimer held cash, cash equivalents and short-term investments of $51.2 million.

“During the second quarter, we had the first oral presentations of our North American Phase 3 fidaxomicin data at major scientific conferences showing that fidaxomicin is more effective than oral vancomycin when it comes to reducing recurrence of CDI, even in high risk patient populations,” said Michael N. Chang, Ph.D., Optimer’s President and Chief Executive Officer. “As we head into the second half of this year, we look forward to presenting additional data from this study at ICAAC and IDSA and we are focused on completing our second fidaxomicin Phase 3 trial and preparing regulatory filings for fidaxomicin and prulifloxacin.”

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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 and presentations of clinical trial results. 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.

SOURCE Optimer Pharmaceuticals, Inc.

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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