Newsroom.

Teaneck, NJ/PRNewswire - GC Biopharma USA, Inc. today announces that the US Food and Drug Administration (FDA) has approved ALYGLO (immune globulin intravenous, human-stwk) 10% Liquid, formerly referred to as “G5107B,” for the treatment of adult patients aged 17 years and older with primary humoral immunodeficiency (PI).

The ALYGLO pivotal phase 3 clinical study followed FDA guidance for the treatment of patients with PI. The clinical trial (NCT02783482) GC5107B was a prospective, open-label, single-arm, historically controlled, multicenter phase 3 study to assess the efficacy and safety of GC5107B in patients with a confirmed diagnosis of PI. The studies were conducted in the United States and Canada. Key findings from the phase 3 clinical trial for patients aged 17 years and older include the following:

1. A primary efficacy end point of 0.03 acute serious bacterial infections (aSBIs) per patient-year, which met the FDA efficacy requirement of less than one aSBI per patient-year.
2. The proportion of infusions with temporally associated adverse events occurring during or within 72 hours after infusion was 0.22 (95% one-sided upper confidence bound: 30%), which met the FDA-required prespecified end point of less than 0.40.
3. Secondary analyses were annual rate or days of other infections, antibiotic use, days out of work/school/day care or unable to perform normal activities due to infection, and days of hospitalization due to infection.

The results of the phase 3 trial are published by Dr. Elena Perez, MD, PhD, et al in Frontiers in Immunology (2021).

In addition, ALYGLO uses its novel Cation Exchange Chromatography (CEX) in the manufacturing process for removing coagulation factor XIa (FXIa) to undetectable levels. The presence of residual activated FXIa in some commercial IGIV products has been identified as the root cause of a small number of thromboembolic events in patients receiving immunoglobulin infusions. A recent study published in Frontiers in Cardiovascular Medicine details the extensive testing of ALYGLO and its results of the GC Biopharma manufacturing process. GC Biopharma is committed to evaluating how this new manufacturing process serves to further improve product safety.

Dr. Eun-chul Huh, President and CEO of GC Biopharma, said, “The approval of ALYGLO by the US FDA is a significant milestone for GC Biopharma and patients with primary immunodeficiency disease. It reinforces GC Biopharma’s commitment to patients and health care professionals by expanding our product portfolio globally to serve individuals with rare diseases. We are pleased to offer patients another important treatment option in the coming months that is both safe and effective.”

For any medical or scientific questions regarding ALYGLO, call the GC Biopharma USA medical department at 1-833-426-6426, or email Dr. Alan Huber.

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About ALYGLO
ALYGLO is a liquid solution containing 10% immunoglobulin G (100 mg/mL) for intravenous infusion, manufactured from pooled human plasma from US donors. The manufacturing process includes three steps to reduce the risk of virus transmission. These include fractionation, solvent/detergent treatment, and nanofiltration. ALYGLO also uses its novel Cation Exchange Chromatography (CEX) in the manufacturing process for removing FXIa to undetectable levels.

About PI
Primary Immunodeficiency (PI) refers to a group of disorders where the body’s ability to produce antibodies is impaired, affecting the immune system’s ability to fight infections. In PI, there’s a deficiency or absence of B cells or plasma cells, which are key in producing antibodies, particularly immunoglobulin G. This leads to increased susceptibility to infection, especially bacterial infections affecting the respiratory and gastrointestinal tracts.

People with PI might experience frequent infections, some of which can be severe or chronic. Treatment often involves immunoglobulin replacement therapy to boost the immune system. Vaccinations and antibiotics may also be used to prevent and treat infections. The exact type and severity of PI can vary widely among individuals.

The PI indication for ALYGLO includes, but is not limited to, congenital agammaglobulinemia, common variable immunodeficiency (CVID), Wiskott-Aldrich syndrome, and severe combined immunodeficiencies.

About GC Biopharma Corp.
GC Biopharma Corp. (formerly known as Green Cross Corporation) is a biopharmaceutical company that delivers lifesaving and life-sustaining protein therapeutics and vaccines. Headquartered in Yongin, South Korea, GC Biopharma is a leading global plasma protein and vaccine product manufacturer and has been dedicated to quality health care solutions for over half a century.

About GC Biopharma USA, Inc.
GC Biopharma USA, Inc., headquartered in Teaneck, NJ, established its sales, marketing, and business operations in 2018 to serve customers and patients throughout the US. Our foundation is built on the expertise of our parent company, GC Biopharma’s, expertise—a leading biopharmaceutical company delivering plasma therapies and vaccines worldwide. With GC Biopharma USA, Inc., GC Biopharma further extends its footprint, bringing its expertise and legacy to the United States.

This press release may contain forward-looking statements that express the current beliefs and expectations of GC Biopharma USA management. Such statements do not represent any guarantee by GC Biopharma USA or its management of future performance and involve known and unknown risks, uncertainties, and other factors. GC Biopharma USA undertakes no obligation to update or revise any forward-looking statement contained in this press release or any other forward-looking statements it may make, except as required by law or stock exchange rule.