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ZilbrysqMedical Mutual

Generalized myasthenia gravis (anti-acetylcholine receptor antibody positive)

Initial criteria

  • Patient age ≥ 18 years
  • Confirmed anti-acetylcholine receptor antibody-positive generalized myasthenia gravis
  • Myasthenia Gravis Foundation of America classification II to IV
  • Myasthenia Gravis Activities of Daily Living (MG-ADL) score ≥ 6
  • Patient received or is currently receiving pyridostigmine OR had inadequate efficacy, a contraindication, or significant intolerance to pyridostigmine
  • Patient received or is currently receiving two different immunosuppressant therapies for ≥ 1 year OR had inadequate efficacy, a contraindication, or significant intolerance to two different immunosuppressant therapies (examples include azathioprine, cyclosporine, mycophenolate mofetil, methotrexate, tacrolimus, cyclophosphamide)
  • Patient has evidence of unresolved symptoms of generalized myasthenia gravis (e.g., difficulty swallowing, difficulty breathing, functional disability such as double vision, impaired speech, impaired mobility)
  • Prescriber is enrolled in the Zilbrysq REMS program
  • Patient has completed meningococcal vaccination (serogroups A, C, W, Y, and B) at least 2 weeks prior to the first dose
  • Medication prescribed by or in consultation with a neurologist

Reauthorization criteria

  • Patient age ≥ 18 years
  • Patient is continuing to derive benefit from Zilbrysq according to the prescriber (e.g., reductions in exacerbations, improvements in speech, swallowing, mobility, respiratory function)
  • Prescriber and patient have been adherent to the REMS program throughout therapy
  • Medication prescribed by or in consultation with a neurologist

Approval duration

initial 6 months; reauth 1 year