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Sponsor: argenx
Conditions: AChR-Ab Seropositive Generalized Myasthenia Gravis, Myasthenia Gravis (MG), MG - Myasthenia Gravis, gMG
Interventions: Empasiprubart IV, Placebo IV, Efgartigimod PH20 SC PFS
Countries: United States
This study is part of the ADAPT Forward platform study (NCT07294170). ADAPT Forward is a platform study with the aim to look at how safe different drugs are and how well they work for people with myasthenia gravis. The goal is to find the best therapeutic approach to reduce patients' side effects and improve their quality of life. The aim of this ISA2 is to investigate the effects of empasiprubart in participants with AChR-Ab seropositive generalized myasthenia gravis (gMG). The ADAPT Forward master protocol is registered on https://clinicaltrials.gov/study/NCT07294170 More information can be found here: https://clinicaltrials.argenx.com/adaptforward2
Sex: ALL
Age: 18 Years to —
Healthy volunteers: No
Study type: INTERVENTIONAL
Inclusion Criteria: * Is seropositive for anti-acetylcholine receptor antibodies (AChR-Ab). * Has confirmed diagnosis of gMG and is Myasthenia Gravis Foundation of America (MGFA) Class II, III, IVa, or IVb. * Has documented immunization against encapsulated bacterial pathogens (Neisseria meningitidis and Streptococcus pneumoniae) within 5 years before ISA screening or will complete immunization at least 14 days before the first IMP administration. Exclusion Criteria: * Clinical diagnosis of systemic lupus erythematosus (SLE). * Is receiving concurrent complement inhibitors (eg, eculizumab, zilucoplan, ravulizumab, or others). Participants who received zilucoplan or eculizumab \>2 months or ravulizumab \>6 months before baseline are allowed to participate. * Has received an FcRn antagonist, including efgartigimod, within 4 weeks before baseline. * Had prior empasiprubart exposure.
- Miami, Florida, United States
- Amherst, New York, United States
- Chattanooga, Tennessee, United States