Halozyme Announces FDA Approval Of Herceptin Hylecta™

SAN DIEGO, Feb. 28, 2019 /PRNewswire/ -- Halozyme Therapeutics, Inc. HALO, a biotechnology company developing novel oncology and drug-delivery therapies, today announced that Genentech, a member of the Roche Group, has received approval from the U.S. Food and Drug Administration (FDA) for Herceptin Hylecta™, a subcutaneous fixed-dose combination of trastuzumab and hyaluronidase-oysk. Herceptin Hylecta™ is approved for the treatment of certain people with HER2-positive early breast cancer (node-positive, or node-negative and ER/PR-negative or with one high-risk feature) in combination with chemotherapy and HER2-positive metastatic breast cancer in combination with paclitaxel or alone in people who have received one or more chemotherapy regimens for metastatic disease. Herceptin Hylecta™ is a co-formulation of trastuzumab with Halozyme's proprietary recombinant human hyaluronidase enzyme (ENHANZE^® technology). Herceptin Hylecta™ is a ready-to-use formulation that can be administered in two to five minutes, compared to 30 to 90 minutes for intravenous trastuzumab.

"We are delighted that Herceptin Hylecta™ has been approved in the U.S. and that the potential for two- to five-minute administration time will now be available to patients in most of the major developed markets," said Dr. Helen Torley, president and chief executive officer. "Herceptin Hylecta™ is the third product co-formulated with ENHANZE to receive FDA approval, which represents an important achievement."

About ENHANZE^® Technology 
Halozyme's proprietary ENHANZE® drug-delivery technology is based on its patented recombinant human hyaluronidase enzyme (rHuPH20). rHuPH20 has been shown to remove traditional limitations on the volume of biologics that can be delivered subcutaneously (just under the skin). By using rHuPH20, some biologics and compounds that are administered intravenously may instead be delivered subcutaneously. ENHANZE® may also benefit subcutaneous biologics by reducing the need for multiple injections. This delivery has been shown in studies to reduce health care practitioner time required for administration and shorten time for drug administration.

About Halozyme
Halozyme 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 pegvorhyaluronidase alfa (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 the treatment of several cancers and has the potential to be used 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, Lilly, Bristol-Myers Squibb, Alexion and argenx for its ENHANZE^® drug delivery technology. 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 ENHANZE®, the possible method of action of ENHANZE®, its potential application to aid in the dispersion and absorption of other injected therapeutic drugs, the potential development and commercialization of products co-formulated with ENHANZE® and statements concerning such products facilitating more rapid delivery of injectable medications through subcutaneous delivery 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, 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 most recently filed Annual Report on Form 10-K and Quarterly Reports on Form 10-Q filed with the Securities and Exchange Commission.

Contact:
Al Kildani
Vice President, Investor Relations and Corporate Communications
858-704-8122
ir@halozyme.com

SOURCE Halozyme Therapeutics, Inc.