Halozyme Therapeutics, Inc. Reports 2008 Second Quarter Financial Results

SAN DIEGO, Aug. 8 /PRNewswire-FirstCall/ -- Halozyme Therapeutics, Inc. , a biopharmaceutical company developing and commercializing products targeting the extracellular matrix, today reported financial results for the three and six months ended June 30, 2008.

“As we’ve previously stated, we continue to increase our focus and resources on our proprietary programs that target large markets. Now we are beginning to see tangible results of that effort. Data from recent presentations at medical conferences validates the strength of our technology platform across multiple therapeutic areas,” said Jonathan Lim, MD, President and CEO of Halozyme. “For example, Phase I clinical results showed faster absorption and onset for insulin when co-administered with our PH20 enzyme, a profile more similar to the body’s own natural insulin. This could lead to the development of a best-in-class product. We have also demonstrated in animal models significant tumor suppression for PEGPH20 plus chemotherapy and controlled degradation of a structural component of the skin with HTI-501 that may prove beneficial in various dermatologic conditions. Over the next six months, we plan to initiate additional clinical trials to enhance the value of our pipeline.”

Conference Call

Halozyme management will host a pipeline update conference call today to discuss these topics beginning at 8:00 a.m. PT (11:00 a.m. ET). To participate via telephone, please call 888-256-9044 for domestic callers, or 706-643-5585 for international callers. A telephone replay will be available for 48 hours by dialing 800-642-1687 for domestic callers, or 706-645-9291 for international callers. The reservation number is 44830661. The conference call will be broadcast live over the Internet at http://www.halozyme.com and the replay will be available on the Company’s website for 30 days.

About HYLENEX

HYLENEX recombinant (hyaluronidase human injection) is indicated as an adjuvant to increase the absorption and dispersion of other injected drugs, as an adjuvant for subcutaneous fluid administration (hypodermoclysis), and as an adjunct in subcutaneous urography for improving resorption of radiopaque agents. Hyaluronidase is contraindicated in patients with hypersensitivity to hyaluronidase enzyme or any other ingredients in the formulation. Hyaluronidase should not be used to enhance the absorption and dispersion of dopamine and/or alpha agonist drugs. Discontinue HYLENEX recombinant if sensitization occurs. Hyaluronidase should not be applied directly to the cornea, and should not be injected around infected or acutely inflamed areas, nor used to reduce the swelling of bites or stings. Hyaluronidase should not be used for intravenous injections because the enzyme is rapidly inactivated. Furosemide, the benzodiazepines, and phenytoin are incompatible with hyaluronidase. Please see accompanying package insert at http://www.hylenex.com for full Prescribing Information.

About Halozyme Therapeutics, Inc.

Halozyme is a biopharmaceutical company developing and commercializing products targeting the extracellular matrix for the drug delivery, metabolism, oncology and dermatology markets. The company’s portfolio of products and product candidates is based on intellectual property covering the family of human enzymes known as hyaluronidases. The company’s Enhanze(TM) Technology is a novel drug delivery platform designed to increase the absorption and dispersion of biologics. Its key partnerships are with Roche to apply Enhanze Technology to Roche’s biological therapeutic compounds for up to 13 targets and with Baxter to apply Enhanze Technology to Baxter’s biological therapeutic compound, GAMMAGARD LIQUID 10%. In addition, the company has received FDA approval for two products: Cumulase(R), for use in in-vitro fertilization, and HYLENEX, for use as an adjuvant to increase the absorption and dispersion of other injected drugs and fluids. HYLENEX is partnered with Baxter International Inc. The Company also has a number of different enzymes in its portfolio that are targeting significant areas of unmet need.

Safe Harbor Statement

In addition to historical information, the statements set forth above include forward-looking statements (including, without limitation, statements relating to an insulin product and conclusions and implications drawn from clinical and pre-clinical trial data) that involve risk and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. The forward-looking statements are also identified through use of the words “believe,” “enable,” “may,” “will,” “could,” “intends,” “estimate,” “anticipate,” “plan,” “predict,” “probable,” “potential,” “possible,” “should,” “continue,” and other words of similar meaning. Actual results could differ materially from the expectations contained in forward-looking statements as a result of several factors, including regulatory approval requirements and competitive conditions. These and other factors that may result in differences are discussed in greater detail in the company’s reports on Forms 10-K, 10-Q, and other filings with the Securities and Exchange Commission.

CONTACT: Robert H. Uhl, Senior Director, Investor Relations of Halozyme
Therapeutics, Inc., +1-858-704-8264, ruhl@halozyme.com; or media, Karen
Sparks, +1-858-455-5500, ext. 275, karen@mentus.com, or Joleen Schultz,
+1-858-455-5500, ext. 215, jschultz@mentus.com, both of Mentus, for
Halozyme Therapeutics, Inc.

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

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