RecruitingPhase 3NCT06607627

PK, PD, Safety, and Efficacy Study of Gefurulimab in Pediatric Patients With AChR+ Generalized Myasthenia Gravis

An Open-Label, Single-arm Study to Evaluate the Pharmacokinetics (PK), Pharmacodynamics (PD), Safety, and Efficacy of Gefurulimab in Pediatric Patients (6 to < 18 Years of Age) With Generalized Myasthenia Gravis (gMG) Who Express Acetylcholine Receptor Antibodies (AChR+)


Sponsor

Alexion Pharmaceuticals, Inc.

Enrollment

12 participants

Start Date

Nov 13, 2024

Study Type

INTERVENTIONAL

Conditions

Summary

The primary objective of this study is to assess the pharmacokinetics and pharmacodynamics of gefurulimab in pediatric participants with AChR+ gMG for the duration of the study.


Eligibility

Min Age: 6 YearsMax Age: 17 Years

Inclusion Criteria7

  • United States of America (USA) specific inclusion criterion:
  • Participant must be 12 to \< 18 years of age at the time of signing the informed consent/assent.
  • All participants must be vaccinated against meningococcal infection from serogroups A, B, C, W, and Y within 3 years and at least 2 weeks prior to the first dose of study intervention administration.
  • Participant must be 6 to \< 18 years of age at the time of signing the informed consent/assent.
  • All participants must be vaccinated against meningococcal infection from serogroups A, C, W, Y (and B where available) within 3 years prior to study intervention on Day 1. If vaccination occurs \< 2 weeks prior to Day 1, the participants will receive prophylactic antibiotics for at least 2 weeks after initial meningococcal vaccination for serogroups A,C,W,Y (and B, where available)
  • Diagnosis of MG with generalized muscle weakness meeting the clinical criteria defined by Myasthenia Gravis Foundation of America (MGFA) Class II, III or IV
  • Positive serological test for autoantibodies against AChR

Exclusion Criteria4

  • History of thymectomy, or any other thymic surgery within 12 months prior to Screening
  • Untreated thymic malignancy, carcinoma, or thymoma
  • History of Neisseria meningitidis infection
  • Pregnancy, breastfeeding, or intention to conceive during the course of the study

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Interventions

COMBINATION_PRODUCTGefurulimab

Combination product consisting of syringe prefilled with gefurulimab will be administered weekly via subcutaneous (SC) injection.


Locations(13)

Research Site

Washington D.C., District of Columbia, United States

Research Site

Norfolk, Virginia, United States

Research Site

Joinville, Brazil

Research Site

Salvador, Brazil

Research Site

São José do Rio Preto, Brazil

Research Site

São Paulo, Brazil

Research Site

São Paulo, Brazil

Research Site

Saitama-Shi, Japan

Research Site

Bydgoszcz, Poland

Research Site

Lodz, Poland

Research Site

Warsaw, Poland

Research Site

New Taipei City, Taiwan

Research Site

Taipei, Taiwan

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NCT06607627


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