Long-term safety of cyclical rozanolixizumab in patients with generalized myasthenia gravis: Results from the Phase 3 MycarinG study and an open-label extension
Abstract
BACKGROUND: Generalized myasthenia gravis (gMG) is a rare, chronic, fluctuating and heterogeneous autoimmune disease requiring lifelong treatment. The Phase 3 MycarinG study demonstrated the efficacy and safety of one 6-week cycle of weekly rozanolixizumab in adult patients with gMG. Open-label extension studies demonstrated consistent symptom improvement over additional treatment cycles.
OBJECTIVE: To present findings from pooled analyses on the long-term safety of repeated cycles of rozanolixizumab.
METHODS: Data from the Phase 3 randomized MycarinG study (NCT03971422) and the ongoing open-label extension study MG0007 (NCT04650854) were pooled to assess safety outcomes during cyclical treatment, including incidence of any treatment-emergent adverse events (TEAEs), severe TEAEs, serious TEAEs and TEAEs leading to discontinuations. Additional analyses were performed for TEAEs, including headache, infections, and hypersensitivity reactions.
RESULTS: At data cutoff (July 8, 2022), a total of 188 patients in MycarinG and MG0007 had received ≥1 treatment cycle with rozanolixizumab; total time in studies was 174.71 patient-years. Overall, 169/188 (89.9%) patients experienced any TEAE: 89/188 (47.3%) experienced any headache (including migraine, migraine with aura); 85/188 (45.2%) experienced an infection; 25/188 (13.3%) experienced a hypersensitivity reaction. One patient experienced an event of aseptic meningitis. The majority of AEs were mild-to-moderate in intensity, and…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 188 participants or records.
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