Drugs / Efgartigimod Alfa
last change 3 days ago re-read 9 days ago

Efgartigimod Alfa

Protein / enzyme biologic targets FCGRT via inhibition

Developed for
generalized myasthenia gravis · autoimmune thrombocytopenia · Guillain-Barre syndrome · pemphigus foliaceus · pemphigus vulgaris · polyneuropathy, inflammatory demyelinating, chronic · Sjogren syndrome · AChR+ myasthenia gravis
+24 more · antisynthetase syndrome · autoimmune encephalitis · bullous pemphigoid · dermatomyositis · Graves disease · immune-mediated necrotizing myopathy · myasthenia gravis · postural orthostatic tachycardia syndrome · primary thrombocytopenia · stiff-person syndrome · acquired epidermolysis bullosa · acquired thrombotic thrombocytopenic purpura · autoimmune thrombocytopenic purpura · disease of orbital part of eye adnexa · endocrine exophthalmos · immunoglobulin G4-related sclerosing disease · lupus nephritis · membranous glomerulonephritis · neuromyelitis optica spectrum disorder with anti-AQP4 antibodies · ocular myasthenia gravis · recessive dystrophic epidermolysis bullosa · systemic sclerosis · transplant rejection · optic neuritis
Investigated by
argenx · IQVIA Pty Ltd · First Affiliated Hospital of Wenzhou Medical University · Shanghai Zhongshan Hospital · Beijing Huaxin Hospital · Beijing Tiantan Hospital
+36 more · Beijing Tongren Hospital · Centre Hospitalier Universitaire de Nice · Chafic Karam · Clinique Neuro-Outaouais · First Affiliated Hospital of Zhejiang University · Henan Provincial People's Hospital · Huashan Hospital · M. Peter Marinkovich · Ningbo Medical Center Lihuili Hospital · Peking Union Medical College · Quintiles, Inc. · Rambam Health Care Campus · Second Affiliated Hospital of Soochow University · Second Affiliated Hospital, School of Medicine, Zhejiang University · Shandong Provincial Hospital · Sir Run Run Shaw Hospital · Stanford University · Tang-Du Hospital · The Affiliated Brain Hospital of Nanjing Medical University · The Affiliated Hospital of Xuzhou Medical University · The First Affiliated Hospital, Guangzhou University of Traditional Chinese Medicine · The Second Hospital of Hebei Medical University · Thomas Jefferson University · Tianjin Medical University General Hospital · Union Hospital, Tongji Medical College, Huazhong University of Science and Technology · University Health Network, Toronto · University of Colorado, Denver · University of Minnesota · University of South Florida · West China Hospital · Wuhan TongJi Hospital · Xijing Hospital · Zai Lab (Shanghai) Co., Ltd. · Zai Lab Pty. Ltd. · Zhejiang Provincial People's Hospital · Zhongming Qiu

Regulatory milestones approvals, filings & regulatory actions · 16 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Filed generalized myasthenia gravis 7 milestones
Filed US (FDA) — generalized myasthenia gravis 2022-11-22

“has accepted for priority review a Biologics License Application (BLA) for SC efgartigimod” argenx.com ↗

Filed US (FDA) — generalized myasthenia gravis 2022-09-21

“today announced the submission of a Biologics License Application (BLA) to the U.S. Food and Drug Administration (FDA) for SC efgartigimod” argenx.com ↗

Filed China (NMPA) VYVGART generalized myasthenia gravis 2022-07-13

“Zai Lab Announces Acceptance by China’s NMPA of the BLA for Efgartigimod for Patients with Generalized Myasthenia Gravis” zailaboratory.com ↗

Filed US (FDA) — generalized myasthenia gravis 2021-03-02

“Biologics License Application (BLA) for IV efgartigimod for treatment of gMG accepted for review by U.S. Food and Drug Administration (FDA)” argenx.com ↗

“FDA has accepted for review the Biologics License Application (BLA) for intravenous (IV) efgartigimod” argenx.com ↗

“BLA for IV efgartigimod for treatment of gMG accepted for review by FDA” argenx.com ↗

Filed US (FDA) — generalized myasthenia gravis 2021-01-07

“BLA for IV efgartigimod for treatment of gMG accepted for review by the U.S. Food and Drug Administration (FDA) in March 2021” argenx.com ↗

“Submitted BLA to FDA for efgartigimod for treatment of gMG” argenx.com ↗

“We've submitted a BLA to the FDA for efgartigimod in gMG” argenx.com ↗

Filed Japan (PMDA) — generalized myasthenia gravis —

“Japanese Marketing Authorization Application (J-MAA) for efgartigimod accepted for review by Japan’s Pharmaceuticals and Medical Device Agency (PMDA) for generalized myasthenia...” argenx.com ↗

“argenx also submitted and was notified of acceptance of an application for efgartigimod to Japan’s Pharmaceuticals and Medical Devices Agency (PMDA) earlier this year.” argenx.com ↗

“Marketing authorization application (MAA) filed in Japan in first quarter of 2023” argenx.com ↗

“Regulatory reviews of SC efgartigimod for gMG ongoing in the U.S., EU and Japan” argenx.com ↗

“J-MAA submitted to Japan’s PMDA and accepted for review” argenx.com ↗

Filed EU (EMA) — generalized myasthenia gravis —

“A Marketing Authorization Application for efgartigimod for the treatment of gMG is currently under review by the European Medicines Agency (EMA)” argenx.com ↗

Filed polyneuropathy, inflammatory demyelinating, chronic 4 milestones
Filed US (FDA) VYVGART Hytrulo polyneuropathy, inflammatory demyelinating, chronic 2026-01-13

“FDA decision on CIDP sBLA expected by June 21, 2024: Data from the ADHERE trial were submitted to the U.S. Food and Drug Administration (FDA)” argenx.com ↗

“the U.S. Food and Drug Administration ("FDA") has accepted for priority review a supplemental Biologics License Application ("sBLA")” halozyme.com ↗

“FDA has accepted for priority review a supplemental Biologics License Application (sBLA) for VYVGART®” argenx.com ↗

Filed China (NMPA) VYVGART SC polyneuropathy, inflammatory demyelinating, chronic —

“In May 2024, the NMPA accepted a supplemental Biologics License Application (sBLA) with priority review for efgartigimod SC in chronic inflammatory demyelinating polyneuropathy (CIDP).” argenx.com ↗

“completed the regulatory submissions of VYVGART® SC for CIDP in Japan, Europe, and China during the second quarter of 2024.” halozyme.com ↗

“In April 2024, Zai Lab submitted an sBLA for efgartigimod SC” zailaboratory.com ↗

Filed Japan (PMDA) VYVGART SC polyneuropathy, inflammatory demyelinating, chronic —

“completed the regulatory submissions of VYVGART® SC for CIDP in Japan, Europe, and China during the second quarter of 2024.” halozyme.com ↗

Filed EU (EMA) VYVGART SC polyneuropathy, inflammatory demyelinating, chronic —

“completed the regulatory submissions of VYVGART® SC for CIDP in Japan, Europe, and China during the second quarter of 2024.” halozyme.com ↗

Approved Indication not stated 3 milestones
Label expansions (3) US (FDA) VYVGART — 2024-08-08 – 2026-05-08 fda.gov ↗

Trials 66 · started per year

today
US approved 2021
EU approved 2022
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201720182019202020212022202320242025202620272028
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 15 trials
Phase 1 NCT05927415 Jul 2023 → Jun 2024 impaired renal function disease argenx Completed No outcome recorded
Phase 1 NCT05163834 Nov 2021 → Mar 2022 — argenx Completed No outcome recorded
Phase 1 NCT04564066 Aug → Dec 2020 — argenx Completed No outcome recorded
Phase 1 NCT04073589 Jul → Sep 2019 — argenx Completed No outcome recorded
Phase 1 NCT03334084 Oct 2017 → Sep 2018 — argenx Completed No outcome recorded
Phase 1/21 trial
Phase 1/2 NCT07011589 Jul 2026 → Jan 2028 expected acquired epidermolysis bullosa, recessive dystrophic epidermolysis bullosa M. Peter Marinkovich Not yet recruiting No outcome recorded
Phase 221 trials · 1 met primary
Phase 2 NCT07583641 Apr 2027 → Jul 2030 expected autoimmune encephalitis argenx Not yet recruiting No outcome recorded
Phase 2 NCT07806916 Sep 2026 → Jun 2027 expected Guillain-Barre syndrome Beijing Tiantan Hospital Not yet recruiting No outcome recorded
Phase 2 NCT07822776 Jun 2026 → Dec 2027 expected autoimmune encephalitis Beijing Tongren Hospital Recruiting No outcome recorded
Phase 2 NCT07025330 Nov 2025 → Mar 2028 expected immunoglobulin G4-related sclerosing disease Stanford University Recruiting No outcome recorded
Phase 2 NCT06831058 May 2025 → May 2028 expected acquired thrombotic thrombocytopenic purpura University of Minnesota Recruiting No outcome recorded
Phase 2 NCT06528392 Apr 2025 → Dec 2026 expected stiff-person syndrome University of South Florida Not yet recruiting No outcome recorded
Phase 2 NCT06655155 Nov 2024 → Feb 2027 expected systemic sclerosis argenx Recruiting No outcome recorded
Phase 2 NCT05701189 Sep 2024 → Jan 2026 Guillain-Barre syndrome Chafic Karam Withdrawn No outcome recorded Stop: Enrollment
Phase 2 NCT06503731 Aug 2024 → Nov 2027 expected transplant rejection argenx Active not recruiting No outcome recorded
Phase 2 NCT06497374 Jul 2024 → Dec 2025 overdue neuromyelitis optica spectrum disorder with anti-AQP4 antibodies Tianjin Medical University General Hospital Not yet recruiting No outcome recorded
Phase 2/38 trials · 1 met primary
Phase 2/3 NCT07860021 Sep 2026 → Dec 2027 expected stiff-person syndrome Thomas Jefferson University Recruiting No outcome recorded
Phase 2/3 NCT07194850 Oct 2025 → Oct 2028 expected autoimmune thrombocytopenic purpura argenx Recruiting No outcome recorded
Phase 2/3 NCT06885762 Apr 2025 → Jun 2026 overdue Guillain-Barre syndrome Zhongming Qiu Not yet recruiting No outcome recorded
Phase 2/3 NCT06392386 Jun 2024 → Sep 2027 expected generalized myasthenia gravis argenx Recruiting No outcome recorded
Phase 2/3 NCT05523167 Oct 2022 → Jul 2026 antisynthetase syndrome, dermatomyositis, immune-mediated necrotizing myopathy argenx Completed Met primary
Phase 2/3 NCT05374590 Aug 2022 → Sep 2029 expected generalized myasthenia gravis argenx Enrolling by invitation No outcome recorded
Phase 2/3 NCT05267600 Jun 2022 → Sep 2024 bullous pemphigoid argenx Completed No outcome recorded
Phase 2/3 NCT04833894 Oct 2021 → Mar 2027 expected generalized myasthenia gravis argenx Recruiting No outcome recorded
Phase 325 trials · 5 met primary · 2 missed
Phase 3 NCT07570316 Jun 2026 → Jun 2028 expected Graves disease argenx Recruiting No outcome recorded
Phase 3 NCT07596849 Jun 2026 → Jun 2028 expected Graves disease argenx Recruiting No outcome recorded
Phase 3 NCT07231523 Dec 2025 → Jun 2027 expected AChR+ myasthenia gravis Shanghai Zhongshan Hospital Not yet recruiting No outcome recorded
Phase 3 NCT06765161 Feb 2025 → Jan 2027 expected myasthenia gravis Clinique Neuro-Outaouais Recruiting No outcome recorded
Phase 3 NCT06684847 Jan 2025 → Jul 2027 expected Sjogren syndrome argenx Active not recruiting No outcome recorded
Phase 3 NCT06544499 Oct 2024 → Jun 2028 expected primary thrombocytopenia argenx Recruiting No outcome recorded
Phase 3 NCT06558279 Sep 2024 → Jan 2026 overdue ocular myasthenia gravis argenx Active not recruiting Met primary
Phase 3 NCT06298552 Apr 2024 → Jun 2025 overdue generalized myasthenia gravis argenx Active not recruiting Met primary
Phase 3 NCT06307626 Mar 2024 → Dec 2025 disease of orbital part of eye adnexa argenx Terminated No outcome recorded
Phase 3 NCT06307613 Mar 2024 → Dec 2025 endocrine exophthalmos argenx Terminated No outcome recorded
Phase 45 trials
Phase 4 NCT07072988 Sep 2025 → Oct 2027 expected generalized myasthenia gravis Centre Hospitalier Universitaire de Nice Recruiting No outcome recorded
Phase 4 NCT06909214 Apr 2025 → Aug 2026 overdue generalized myasthenia gravis argenx Recruiting No outcome recorded
Phase 4 NCT06860633 Mar 2025 → Dec 2026 expected AChR+ myasthenia gravis University of Colorado, Denver Recruiting No outcome recorded
Phase 4 NCT06637072 Dec 2024 → Feb 2026 polyneuropathy, inflammatory demyelinating, chronic argenx Completed No outcome recorded
Phase 4 NCT06688253 Nov 2024 → Jan 2025 overdue generalized myasthenia gravis Rambam Health Care Campus Not yet recruiting No outcome recorded
Phase not applicable1 trial
— NCT06827587 Feb 2025 → Feb 2026 overdue generalized myasthenia gravis, neuromuscular disease First Affiliated Hospital of Wenzhou Medical University Not yet recruiting No outcome recorded
Comparator or background therapy5 trials
Phase 1 NCT03457649 Comparator Sep 2015 → Nov 2016 — argenx Completed No outcome recorded
Phase 2 NCT07284420 Background Dec 2025 → Mar 2028 expected AChR+ myasthenia gravis, generalized myasthenia gravis argenx Recruiting No outcome recorded
Phase 2 NCT06453694 Comparator Aug 2025 → Dec 2026 expected optic neuritis Anastasia Vishnevetsky, MD, MPH Recruiting No outcome recorded
Phase 2 NCT02965573 Comparator Dec 2016 → Oct 2017 generalized myasthenia gravis argenx Completed No outcome recorded
Phase 3 NCT07217587 Comparator Jan 2026 → Sep 2027 expected generalized myasthenia gravis Janssen Research & Development, LLC Recruiting No outcome recorded

News releases announcing trial results or a regulatory action · 97

DateIssuerRelease
2026-10-08 argenx Results argenx Provides Update on Phase 3 UNITY Study of Efgartigimod SC in Sjögren's Disease argenx.com ↗
The decision is based on the recommendation from an Independent Data Monitoring Committee (IDMC) to stop the study for futility following an interim analysis.
2026-09-29 argenx Results argenx Presents New Data at AANEM and MGFA Scientific Session Showcasing Earlier and Sustained Treatment in MG and CIDP with VYVGART and Progress Across its Neuromuscular Pipeline argenx.com ↗
New data show deepening improvement in ocular MG and sustained one-year efficacy in anti-AChR antibody-negative MG – broadening VYVGART's potential to treat all MG patients
2026-08-17 Zai Lab (Shanghai) Co., Ltd. Results Zai Lab and argenx Announce Positive Topline Results from Phase 3 ALKIVIA Trial of Efgartigimod in Autoimmune Myositis zailaboratory.com ↗
Zai Lab Limited (NASDAQ: ZLAB; HKEX: 9688) and argenx (Euronext & NASDAQ: ARGX), today announced positive topline results from the ALKIVIA Phase 3 study evaluating VYVGART® Hytrulo (efgartigimod alfa and hyaluronidase-qvfc) in adults with autoimmune myositis.
2026-08-17 argenx Results argenx Announces Positive Topline Results from Phase 3 ALKIVIA Trial of Efgartigimod in Autoimmune Myositis argenx.com ↗
Amsterdam, the Netherlands – argenx SE (Euronext & Nasdaq: ARGX), a global immunology innovation company, today announced positive topline results from the ALKIVIA Phase 3 study evaluating VYVGART® Hytrulo (efgartigimod alfa and hyaluronidase-qvfc) in adults with autoimmune myositis.
2026-06-03 argenx Results argenx Presents New Efgartigimod Data Showing Long-Term Sustained Patient Benefit in Myositis and Sjogren’s Disease at EULAR 2026 argenx.com ↗
ALKIVIA+ data in myositis indicate efgartigimod provides sustained, clinically meaningful improvements and consistent safety
2026-05-08 argenx Regulatory argenx Announces U.S. FDA Approval Expanding VYVGART and VYVGART Hytrulo for Use in All Adult Patients Living with gMG argenx.com ↗
The approved supplemental Biologics License Application (sBLA) expands VYVGART’s indication to include all serotypes of adult patients living with gMG – anti-AChR-Ab positive, anti-MuSK-Ab positive, anti-LRP4-Ab positive, and triple seronegative.
2026-04-18 argenx Results argenx Brings Neuromuscular Leadership to AAN 2026 with New Data Supporting Broader VYVGART Use Across MG and CIDP argenx.com ↗
ADAPT OCULUS is the first study to evaluate a targeted treatment for ocular MG, demonstrating that VYVGART significantly improves disease symptoms in this underserved patient population
2026-03-06 argenx Results argenx to Present New Data at 2026 AAN Annual Meeting that Continue to Transform Patient Outcomes in MG and CIDP and Build Upon Strength of Pipeline argenx.com ↗
Positive results from Phase 3 ADAPT OCULUS study show VYVGART’s potential as the first targeted treatment for patients living with ocular MG
2026-02-26 argenx Results argenx Announces Positive Topline Results from Phase 3 ADAPT OCULUS Trial of VYVGART in Ocular Myasthenia Gravis argenx.com ↗
ADAPT OCULUS met its primary endpoint (p-value=0.012), showing that patients living with oMG and treated with VYVGART demonstrated statistically significant improvement from baseline in Myasthenia Impairment Index (MGII) Patient Reported Outcome (PRO) ocular scores at Week 4 compared to placebo.
2026-01-13 argenx Regulatory argenx Announces FDA Acceptance of Supplemental Biologics License Application with Priority Review for VYVGART in AChR-Ab Seronegative gMG argenx.com ↗
2025-12-15 argenx Results argenx Provides Update on UplighTED Studies of Efgartigimod SC in Thyroid Eye Disease argenx.com ↗
The decision is based on the recommendation from an Independent Data Monitoring Committee (IDMC) to stop the trials for futility following its review of data from a pre-specified interim analysis.
2025-12-07 Zai Lab (Shanghai) Co., Ltd. Regulatory Zai Lab Announces Updates to China’s National Reimbursement Drug List zailaboratory.com ↗
VYVGART® (efgartigimod alfa injection) is renewed for the treatment of adult patients with generalized myasthenia gravis (gMG) who are anti-acetylcholine receptor (AChR) antibody positive;

All press releases naming this drug 122 releases

DateIssuerRelease
Show all 122 releases opens the full record — a long page

Evidence & citations 15 cited values

Every value below carries the sentence it was read from. 73 sources stand behind the page.

FieldValueCited text
Known as efgartigimod alfa “Efgartigimod alfa, a human IgG1 antibody Fc fragment, has demonstrated efficacy and safety in patients with generalised myasthenia gravis.” PMID 39304241 ↗ Oct 2024
1

NCT06453694 ↗

Known as ARGX-113 “Efgartigimod PH20 (ARGX-113) SC” NCT07583641 ↗
5

NCT03770403 ↗

NCT02965573 ↗

NCT03669588 ↗

NCT03334058 ↗

NCT03334084 ↗

Known as EFG “This study is a prospective, multi-center, randomized controlled study to evaluate the efficacy and safety of efgartigimod (EFG) and intravenous immunoglobulin (IVIG) in the...” NCT07231523 ↗
Known as Efgartigimod “METHODS: A randomized, double-blind, placebo-controlled first-in-human study was conducted in 62 healthy volunteers to explore single and multiple ascending intravenous doses...” PMID 30040076 ↗ Jul 2018
64

“Efgartigimod is a human IgG1 antibody Fc-fragment, a natural ligand of the neonatal Fc receptor (FcRn), engineered for increased affinity to FcRn, while preserving its...” PMID 31821591 ↗ Dec 2019

“A Study to Investigate the Efficacy and Safety of Efgartigimod PH20 SC in Adult Participants With Active Idiopathic Inflammatory Myopathy.” NCT05523167 ↗

“subcutaneous administration of efgartigimod with recombinant human hyaluronidase PH20 (rHuPH20)” NCT04073589 ↗

“Efgartigimod is an FcRn inhibitor that enhances the catabolism of circulating IgG” NCT07860021 ↗

NCT05633407 ↗

NCT04225156 ↗

NCT04280718 ↗

NCT07025330 ↗

NCT04818671 ↗

NCT04833894 ↗

Show 54 more sources

Known as Efgartigimod alfa component of vyvgart hytrulo ChEMBL registry synonym — accepted as the source's own label CHEMBL4297551 ↗
Known as Efgartigimod Alfa-Fcab “Drug: Efgartigimod Alfa-Fcab” NCT05701189 ↗
Known as Efgartigimod alfa-qvfc ChEMBL registry synonym — accepted as the source's own label CHEMBL4297551 ↗
Known as efgartigimod alpha “Patients will receive efgartigimod alpha via intravenous infusion at a dose of 10 mg/kg, each infusion lasting approximately 2 hours, on Week 0, 1, 2 and 3.” NCT06497374 ↗
Known as HYTRULO “These patients will receive 1000 mg efgartigimod PH20 SC (VYVGART Hytrulo), every week for 12 weeks (as per Hytrulo's therapeutic guidelines)” NCT07860021 ↗
Known as Vyvgart ChEMBL registry synonym — accepted as the source's own label CHEMBL4297551 ↗
Known as VYVGART Hytrulo “These patients will receive 1000 mg efgartigimod PH20 SC (VYVGART Hytrulo), every week for 12 weeks (as per Hytrulo's therapeutic guidelines)” NCT07860021 ↗
Action Inhibit “Efgartigimod blocks FcRn, preventing IgG recycling, and causing targeted IgG degradation.” PMID 31821591 ↗ Dec 2019
1

“IgG receptor FcRn large subunit p51 antagonist” CHEMBL4297551 ↗

Modality Protein / enzyme biologic “Efgartigimod is a human IgG1 antibody Fc-fragment” PMID 31821591 ↗ Dec 2019
Route Intravenous “four weekly intravenous infusions of either placebo (N = 12) or efgartigimod” PMID 31821591 ↗ Dec 2019
Target FCGRT “IgG receptor FcRn large subunit p51 antagonist” CHEMBL4297551 ↗