Halozyme Doses First Patient In Phase 3 Clinical Trial Of PEGPH20 In Combination With ABRAXANE® And Gemcitabine

SAN DIEGO, March 16, 2016 /PRNewswire/ -- Halozyme Therapeutics, Inc. (NASDAQ: HALO), a biotechnology company developing novel oncology and drug-delivery therapies, today announced the first patient has been dosed in its Halo-301 | Pancreatic study, a Phase 3 clinical trial in previously untreated metastatic pancreatic cancer patients.

The global, randomized, double-blind, placebo controlled trial will study Halozyme's investigational drug, PEGPH20, in combination with ABRAXANE® (nab-paclitaxel) and gemcitabine in patients identified to have tumors that accumulate high levels of hyaluronan (HA). HA is a glycosaminoglycan, or chain of natural sugars that may impede access of drugs targeting the tumor. Halozyme's PEGPH20 temporarily degrades HA and has been shown in animal models to increase the concentration of co-administered therapies in the targeted tumor.

Halozyme also announced that the investigational device exemption (IDE) submitted to the FDA last month by Halozyme's partner Ventana Medical Systems has been approved. This IDE allows Halozyme to use the Ventana HA CDx Assay as the companion diagnostic in Halo-301 to prospectively identify HA-High patients for inclusion in the study.

"The initiation of our Phase 3 study of PEGPH20 in HA-High pancreatic cancer patients marks a key milestone for the Halozyme team and the PEGPH20 development program," said Dr. Helen Torley, President and CEO of Halozyme.

Dr. Margaret Tempero, Director of the Pancreas Center at University of California, San Francisco and one of the Principle Investigators of the study, said, "High levels of HA have been associated with a worse prognosis in certain cancers, notably pancreas cancer. We have assembled a team of expert investigators at nearly 200 global sites to further study this potential link with the hope of bringing new treatment options to an area of high unmet need."

Halo-301 has an enrollment target of 420 HA-high patients and seeks to improve progression-free survival and overall survival in the patients receiving PEGPH20 plus ABRAXANE and gemcitabine compared to those receiving placebo plus ABRAXANE and gemcitabine.

The FDA granted orphan drug designation to PEGPH20 for the treatment of pancreatic cancer and fast track designation for PEGPH20 in combination with gemcitabine and nab-paclitaxel for the treatment of metastatic pancreatic cancer. Additionally, the European Commission, acting on the recommendation from the Committee for Orphan Medicinal Products of the European Medicines Agency, designated investigational drug PEGPH20 as an orphan medicinal product for the treatment of pancreatic cancer. 

About HalozymeHalozyme Therapeutics is a biotechnology company focused on developing and commercializing novel oncology therapies that target the tumor microenvironment. Halozyme's lead proprietary program, investigational drug PEGPH20, applies a unique approach to targeting solid tumors, allowing increased access of co-administered cancer drug therapies to the tumor in animal models. PEGPH20 is currently in development for metastatic pancreatic cancer, non-small cell lung cancer, gastric cancer, metastatic breast cancer and has potential across additional cancers in combination with different types of cancer therapies. In addition to its proprietary product portfolio, Halozyme has established value-driving partnerships with leading pharmaceutical companies including Roche, Baxalta, Pfizer, Janssen, AbbVie and Lilly for its ENHANZE™ drug delivery platform. Halozyme is headquartered in San Diego. For more information visit www.halozyme.com.

Safe Harbor Statement In addition to historical information, the statements set forth above include forward-looking statements (including, without limitation, statements concerning the possible activity, benefits and attributes of PEGPH20, the possible method of action of PEGPH20, its potential application to improve cancer therapies and statements concerning future actions and clinical trials (including the potential identification of HA-High patients for inclusion in such clinical trials using the companion diagnostic) relating to the development of PEGPH20) 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 typically, but not always, 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 unexpected expenditures and costs, unexpected results or delays in development and regulatory review, clinical trials and the companion diagnostic not producing the results we expect, regulatory approval requirements, unexpected adverse events and competitive conditions. These and other factors that may result in differences are discussed in greater detail in the Company's Annual Report on Form 10-K recently filed with the Securities and Exchange Commission.

UC Disclaimer The information stated above was prepared by Halozyme Therapeutics, Inc. and reflects solely the opinion of the corporation. Nothing in this statement shall be construed to imply any support or endorsement of Halozyme, or any of its products, by The Regents of the University of California, its officers, agents and employees.

Contacts:Jim Mazzola858-704-8122[email protected]

Chris Burton858-704-8352[email protected]

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