HALOZYME THERAPEUTICS INC

Halozyme Therapeutics, Inc. is a biopharmaceutical company advancing disruptive solutions to improve patient experiences and outcomes for emerging and established therapies.

As the innovators of ENHANZE drug delivery technology ("ENHANZE") with our proprietary enzyme, rHuPH20, our commercially validated solution is used to facilitate the subcutaneous ("SC") delivery of injected drugs and fluids, with the goal of improving the patient experience with rapid SC delivery and reduced treatment burden. We license our technology to biopharmaceutical companies to collaboratively develop products that combine ENHANZE with our partners’ proprietary compounds. We are also developing partner products with Hypercon drug delivery technology ("Hypercon technology") and developing the Surf Bio drug delivery technology to expand the breadth of our drug delivery technology portfolio. Hypercon technology is an innovative microparticle technology that has been demonstrated in non-clinical testing to enable hyperconcentration of drugs and biologics and reduce the injection volume for the same dosage, potentially expanding opportunities for at-home and health care provider administration. The Surf Bio hyperconcentration technology is being developed to create high antibody and biologic concentrations of up to 500 mg/mL, for delivery in a single auto-injector shot for at-home or in a health care provider’s office use. We also develop, manufacture and commercialize, for ourselves or with our partners, drug-device combination products using our advanced auto-injector technologies that are designed to provide commercial or functional advantages such as improved convenience, reliability and tolerability, and enhanced patient comfort and adherence.

Our ENHANZE partners’ approved products and product candidates are based on rHuPH20, our patented recombinant human hyaluronidase enzyme. rHuPH20 works by breaking down hyaluronan, a naturally occurring carbohydrate that is a major component of the extracellular matrix of the SC space. This temporarily reduces the barrier to bulk fluid flow allowing for improved and more rapid SC delivery of high dose, high volume injectable biologics, such as monoclonal antibodies and other large therapeutic molecules, as well as small molecules and fluids. We refer to the application of rHuPH20 to facilitate the delivery of other drugs or fluids as ENHANZE. We license our ENHANZE technology to form collaborations with biopharmaceutical companies that develop and/or market drugs requiring or benefiting from injection via the SC route of administration. In the development of proprietary intravenous ("IV") drugs combined with our ENHANZE technology, data have been generated supporting the potential for ENHANZE to reduce patient treatment burden, as a result of shorter duration of SC administration with ENHANZE compared to IV administration. ENHANZE may enable fixed-dose SC dosing compared to weight-based dosing typically required for IV administration, extend the dosing interval for drugs that are already administered subcutaneously and potentially allow for lower rates of infusion-related reactions. ENHANZE may enable more flexible treatment options such as home administration by a healthcare professional or potentially the patient or caregiver. Lastly, certain proprietary drugs co-formulated with ENHANZE have been granted additional exclusivity, extending the patent life of the product beyond the patent expiry of the proprietary IV drug.

We currently have ENHANZE collaborations and licensing agreements with F. Hoffmann-La Roche, Ltd. and Hoffmann-La Roche, Inc. ("Roche"), Takeda Pharmaceuticals International AG and Baxalta US Inc. ("Takeda"), Pfizer Inc. ("Pfizer"), Janssen Biotech, Inc. ("Janssen"), AbbVie, Inc. ("AbbVie"), Eli Lilly and Company ("Lilly"), Bristol-Myers Squibb Company ("BMS"), argenx BVBA ("argenx"), ViiV Healthcare (the global specialist HIV Company majority owned by GlaxoSmithKline) ("ViiV"), Chugai Pharmaceutical Co., Ltd. ("Chugai"), Acumen Pharmaceuticals, Inc. ("Acumen"), Merus N.V. ("Merus") and Skye Bioscience, Inc. ("Skye Bioscience"). In addition to receiving upfront licensing fees from our ENHANZE collaborations, we are entitled to receive event and sales-based milestone payments, revenues from the sale of bulk rHuPH20 and royalties from commercial sales of approved partner products co-formulated with ENHANZE. We currently earn royalties from the sales of ten commercial products including sales of five commercial products from the Roche collaboration, two commercial products from the Janssen collaboration and one commercial product from each of the Takeda, argenx and BMS collaborations.