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Efgartigimod alfa - argenx

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Drug Profile

Efgartigimod alfa - argenx

Alternative Names: ARGX-113; EFG PH20 SC; Efgartigimod - argenx; Efgartigimod alfa-fcab - argenx; efgartigimod PH20; efgartigimod PH20 SC; PH20 SC; VYVDURA; VYVDURA VYVGART SC; VYVGART; VYVGART HYTRULO; VYVGART SC; Vyvgart, VYVGART SC

Latest Information Update: 01 Sep 2026

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At a glance

  • Originator arGEN-X
  • Developer argenx; Medison; ZAI Lab
  • Class Anti-inflammatories; Antiarrhythmics; Biphenyl compounds; Esters; Eye disorder therapies; Immunoglobulin Fc fragments; Immunotherapies; Monoclonal antibodies; Pentanoic acids; Skin disorder therapies; Urologics
  • Mechanism of Action Neonatal Fc receptor antagonists
  • Orphan Drug Status

    Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.

    Yes - Chronic inflammatory demyelinating polyradiculoneuropathy; Myasthenia gravis; Idiopathic thrombocytopenic purpura
  • New Molecular Entity Yes

Highest Development Phases

  • Marketed Chronic inflammatory demyelinating polyradiculoneuropathy; Myasthenia gravis
  • Registered Idiopathic thrombocytopenic purpura
  • Phase III Bullous pemphigoid; Graves ophthalmopathy; Graves' disease; Myositis; Pemphigus; Sjogren's syndrome
  • Phase II Encephalitis; Lupus nephritis; Renal transplant rejection; Systemic scleroderma
  • Preclinical Immune-mediated necrotising myopathy
  • Discontinued Anti-neutrophil cytoplasmic antibody-associated vasculitis; Membranous glomerulonephritis; Postural orthostatic tachycardia syndrome

Most Recent Events

  • 15 Aug 2026 Phase-II clinical trials in Encephalitis (In adults, In adolescents, In children, In the elderly) in USA (SC) (NCT07583641)
  • 12 Aug 2026 Argenx plans a phase II SERENITY trial for Sjogren's syndrome (SC, injection) (NCT07760818) (EudraCT2026-526218-10-00)
  • 02 Jul 2026 Argenx completes a phase II/III trial in Myositis (Treatment-experienced) in US, Denmark, United Kingdom, Turkey, Thailand, Taiwan, Switzerland, Sweden, Spain, Slovakia, Serbia, Portugal, Argentina, China, Poland, Peru, Netherlands, Mexico, Lithuania, South Korea, Japan, Italy, Israel, Ireland, Hungary, Greece, Germany, Georgia, France, Czech Republic, Cyprus, Canada, Bulgaria, Belgium, Austria and Australia (SC, Injection) (NCT05523167)

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