Johnson & Johnson announced positive results from the nipocalimab Phase 3 Vivacity-MG3 study in patients with generalized myasthenia gravis (gMG). Patients treated with nipocalimab plus standard of care (SOC) achieved superiority over placebo plus SOC as measured by the primary endpoint of improvement in the MG-ADL score from baseline over 24 weeks. These data are included in a presentation and are among eight abstracts that Johnson & Johnson will present at the European Academy of Neurology (EAN) 2024 Congress1 and will be included in submissions to regulatory authorities later this year.

The double-blind placebo-controlled study enrolled a broad population of anti-AChR+, anti-MuSK+ and/or anti-LRP4+ patients, which account for approximately 95% of the gMG patient population.2 Patients receiving nipocalimab plus SOC improved by 4.70 points on the MG-ADL, significantly more than the 3.25 point improvement from baseline observed with placebo plus SOC from baseline over Weeks 22, 23 and 24 (P=0.002).