A Study of Nipocalimab Administered to Adults With Generalized Myasthenia Gravis

Summary

The purpose of this study is to evaluate the efficacy and safety of nipocalimab compared to placebo in participants with generalized myasthenia gravis (gMG). The purpose of the subcutaneous substudy is to evaluate how well it works in the body (pharmacodynamic \[PD\]) when given as an injection under the skin (subcutaneous) compared to when given through a vein (intravenous) in participants with gMG.

Timeline

Start

2021-07-15

Primary completion

2023-11-17

Completion

2029-03-30

Publications

• Yu F, Myshkin E, Nguyen B, Bobadilla Mendez C, Cossu M, Fei K, Wang Q, Hubbard JJ, Campbell K, Ramchandren S, Rojo Cella R, Edwards R, Taylor PC, Gottenberg JE, Noaiseh G, Vu T, Antozzi C, Winthrop KL, Cuff CA, Loza MJ, Dimitrova D, Gao S. Effect of nipocalimab on IgG responses to vaccinations and viral infections in patients with IgG autoantibody-mediated diseases: Post hoc analyses of three randomized, placebo-controlled trials. Hum Vaccin Immunother. 2026 Dec;22(1):2664331. doi: 10.1080/21645515.2026.2664331. Epub 2026 May 5.
• Antozzi C, Fitzgibbon M. An evaluation of nipocalimab for the treatment of generalized myasthenia gravis. Expert Opin Biol Ther. 2025 Oct;25(10):1047-1058. doi: 10.1080/14712598.2025.2561935. Epub 2025 Sep 30.
• Raborn A, Savord A, Houts CR, Pease S, Scippa K, Ramchandren S. Psychometric analysis of the Neuro-QoL Fatigue in generalized Myasthenia Gravis (gMG) using data from a phase 3 trial. Qual Life Res. 2025 Sep;34(9):2577-2589. doi: 10.1007/s11136-025-03998-9. Epub 2025 Jun 14.
• Antozzi C, Vu T, Ramchandren S, Nowak RJ, Farmakidis C, Bril V, De Bleecker J, Yang H, Minks E, Park JS, Grudniak M, Smilowski M, Sevilla T, Hoffmann S, Sivakumar K, Suzuki Y, Youssef E, Sanga P, Karcher K, Zhu Y, Sheehan JJ, Sun H; Vivacity-MG3 Study Group. Safety and efficacy of nipocalimab in adults with generalised myasthenia gravis (Vivacity-MG3): a phase 3, randomised, double-blind, placebo-controlled study. Lancet Neurol. 2025 Feb;24(2):105-116. doi: 10.1016/S1474-4422(24)00498-8.

Drugs

Indications