Baxter International Inc. (NYSE:BAX) and Halozyme Therapeutics, Inc. (NASDAQ:HALO) announced today that Baxter has completed submission of an amended biologics license application (BLA) to the United States Food and Drug Administration (FDA) to re-initiate the review process for approval of HyQvia [Immune Globulin Infusion 10% (human) with Recombinant Human Hyaluronidase] facilitated subcutaneous infusion for the treatment of adult patients with primary immunodeficiency (PI). HyQvia is a combination of human immune globulin (IG) and recombinant human hyaluronidase. Baxter and Halozyme submitted additional preclinical data that was requested from the FDA in 2012, and expect a six-month review period. ''We believe that if approved, HyQvia may become a valuable option for patients with immune deficiency as it allows for the delivery of a full dose of immunoglobulin often in a single site every three to four weeks, in the comfort of a patient’s home,'' said Ludwig Hantson, Ph.D., president of Baxter’s BioScience business. ''As a long-standing leader in the IG market, we are committed to continually developing new treatment options like HyQvia that have the potential to make a meaningful difference in the way patients are treated.'' The original BLA submission for HyQvia was based on results from a Phase III, prospective, open-label, non-controlled multi-center clinical trial, which evaluated the safety and effectiveness of HyQvia in the prevention of acute serious bacterial infections, rate of adverse reactions and the pharmacokinetic parameters compared to immunoglobulin administered intravenously. In the tolerability assessment of HyQvia, the most frequently reported adverse reactions for patients who received HyQvia were local infusion site reactions (such as pain or discomfort, redness, swelling, and itching) and headache, nausea, fatigue and fever. HyQvia was approved and launched in a number of European countries in the second half of 2013. About HyQvia HyQvia is a product consisting of human normal immunoglobulin (IG 10%) and recombinant human hyaluronidase (licensed from Halozyme Therapeutics). The IG provides the therapeutic effect and the recombinant human hyaluronidase facilitates the dispersion and absorption of the IG administered subcutaneously, increasing its bioavailability. The IG is a 10% solution that is prepared from human plasma consisting of at least 98% IgG, which contains a broad spectrum of antibodies.