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Efgartigimod alfa/hyaluronidase

Efgartigimod alfa/hyaluronidase
Combination of
Efgartigimod alfaNeonatal Fc receptor blocker
HyaluronidaseEndoglycosidase
Clinical data
Trade namesVyvgart Hytrulo
Other namesARGX-113, Efgartigimod alfa/hyaluronidase-qvfc
License data
Routes of
administration		Subcutaneous
ATC code
  • None
Legal status
Legal status
Identifiers
KEGG

Efgartigimod alfa/hyaluronidase, sold under the brand name Vyvgart Hytrulo, is a coformulation medication used for the treatment of generalized myasthenia gravis and chronic inflammatory demyelinating polyneuropathy.[1] It contains efgartigimod alfa, a neonatal Fc receptor blocker, and hyaluronidase (human recombinant), an endoglycosidase.[1]

Efgartigimod alfa/hyaluronidase may increase the risk of infection, including urinary tract infection and respiratory tract infections.[2] In clinical trials, hypersensitivity reactions, including rash, angioedema (swelling), dyspnea (shortness of breath), and urticaria (itchy welts) were observed in people treated with efgartigimod alfa.[2] The most common adverse reactions (≥ 10%) of people with myasthenia gravis treated with efgartigimod alfa were respiratory tract infections, headache, and urinary tract infection.[2]

It was approved for medical use in the United States in June 2023.[3][4]

Medical uses

Efgartigimod alfa/hyaluronidase is indicated for the treatment of generalized myasthenia gravis in adults who are anti-acetylcholine receptor antibody positive.[1]

In June 2024, the US Food and Drug Administration (FDA) expanded the indication for the combination to include the treatment of chronic inflammatory demyelinating polyneuropathy in adults.[2]

History

The effectiveness of the combination for the treatment of adults with chronic inflammatory demyelinating polyneuropathy was established in a two stage, multicenter study (Study 3; NCT04281472).[2] Study 3 included an open-label period (stage A) to identify people who had evidence of improvement with the use of Vyvgart Hytrulo, who then entered a randomized, double-blind, placebo-controlled, withdrawal period (stage B).[2]

References

  1. ^ a b c d "Vyvgart Hytrulo (efgartigimod alfa and hyaluronidase- human recombinant injection, solution". DailyMed. 21 June 2023. Retrieved 29 August 2023.
  2. ^ a b c d e f "FDA approves treatment for chronic inflammatory demyelinating polyneuropathy (CIDP) in adults". U.S. Food and Drug Administration (FDA). 24 June 2024. Retrieved 25 June 2024. Public Domain This article incorporates text from this source, which is in the public domain.
  3. ^ "Halozyme Announces argenx Receives FDA Approval for Vyvgart Hytrulo With Enhanze for Subcutaneous Use in Generalized Myasthenia Gravis" (Press release). Halozyme Therapeutics. 20 June 2023. Retrieved 24 June 2023 – via PR Newswire.
  4. ^ "Argenx Announces U.S. Food and Drug Administration Approval of Vyvgart Hytrulo (efgartigimod alfa and hyaluronidase-qvfc) Injection for Subcutaneous Use in Generalized Myasthenia Gravis". Argenx (Press release). 20 June 2023. Retrieved 24 June 2023.
  • Clinical trial number NCT03669588 for "An Efficacy and Safety Study of ARGX-113 in Patients With Myasthenia Gravis Who Have Generalized Muscle Weakness (ADAPT)" at ClinicalTrials.gov
  • Clinical trial number NCT04281472 for "A Study to Assess the Safety and Efficacy of a Subcutaneous Formulation of Efgartigimod in Adults With Chronic Inflammatory Demyelinating Polyneuropathy (CIDP, an Autoimmune Disorder That Affects the Peripheral Nerves) (ADHERE)" at ClinicalTrials.gov


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