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Randomized phase 2 study of FcRn antagonist efgartigimod in generalized myasthenia gravis.
Howard JF Jr, Bril V, Burns TM, Mantegazza R, Bilinska M, Szczudlik A, Beydoun S, Garrido FJRR, Piehl F, Rottoli M, Van Damme P, Vu T, Evoli A, Freimer M, Mozaffar T, Ward ES, Dreier T, Ulrichts P, Verschueren K, Guglietta A, de Haard H, Leupin N, Verschuuren JJGM; Efgartigimod MG Study Group. Howard JF Jr, et al. Among authors: ulrichts p. Neurology. 2019 Jun 4;92(23):e2661-e2673. doi: 10.1212/WNL.0000000000007600. Epub 2019 May 22. Neurology. 2019. PMID: 31118245 Free PMC article. Clinical Trial.
Neonatal Fc receptor antagonist efgartigimod safely and sustainably reduces IgGs in humans.
Ulrichts P, Guglietta A, Dreier T, van Bragt T, Hanssens V, Hofman E, Vankerckhoven B, Verheesen P, Ongenae N, Lykhopiy V, Enriquez FJ, Cho J, Ober RJ, Ward ES, de Haard H, Leupin N. Ulrichts P, et al. J Clin Invest. 2018 Oct 1;128(10):4372-4386. doi: 10.1172/JCI97911. Epub 2018 Jul 24. J Clin Invest. 2018. PMID: 30040076 Free PMC article. Clinical Trial.
Phase 2 study of efgartigimod, a novel FcRn antagonist, in adult patients with primary immune thrombocytopenia.
Newland AC, Sánchez-González B, Rejtő L, Egyed M, Romanyuk N, Godar M, Verschueren K, Gandini D, Ulrichts P, Beauchamp J, Dreier T, Ward ES, Michel M, Liebman HA, de Haard H, Leupin N, Kuter DJ. Newland AC, et al. Among authors: ulrichts p. Am J Hematol. 2020 Feb;95(2):178-187. doi: 10.1002/ajh.25680. Epub 2019 Dec 10. Am J Hematol. 2020. PMID: 31821591 Free PMC article. Clinical Trial.
Safety, efficacy, and tolerability of efgartigimod in patients with generalised myasthenia gravis (ADAPT): a multicentre, randomised, placebo-controlled, phase 3 trial.
Howard JF Jr, Bril V, Vu T, Karam C, Peric S, Margania T, Murai H, Bilinska M, Shakarishvili R, Smilowski M, Guglietta A, Ulrichts P, Vangeneugden T, Utsugisawa K, Verschuuren J, Mantegazza R; ADAPT Investigator Study Group. Howard JF Jr, et al. Among authors: ulrichts p. Lancet Neurol. 2021 Jul;20(7):526-536. doi: 10.1016/S1474-4422(21)00159-9. Lancet Neurol. 2021. PMID: 34146511 Clinical Trial.
The Fab region of IgG impairs the internalization pathway of FcRn upon Fc engagement.
Brinkhaus M, Pannecoucke E, van der Kooi EJ, Bentlage AEH, Derksen NIL, Andries J, Balbino B, Sips M, Ulrichts P, Verheesen P, de Haard H, Rispens T, Savvides SN, Vidarsson G. Brinkhaus M, et al. Among authors: ulrichts p. Nat Commun. 2022 Oct 14;13(1):6073. doi: 10.1038/s41467-022-33764-1. Nat Commun. 2022. PMID: 36241613 Free PMC article.
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