• HNSA-5487 demonstrated a rapid and substantial reduction of IgG levels, exceeding 95% within hours post-treatment, in a Phase 1 trial.
• IgG levels returned to the normal range six months after the initial dose, confirming the drug's efficacy and mirroring results of imlifidase.
• The trial indicated a favorable safety and tolerability profile for HNSA-5487, with no serious adverse events reported among participants.
• HNSA-5487 exhibited lower anti-drug antibody levels and reduced ADA responses compared to imlifidase, suggesting a clear redosing potential.