Actively Recruiting

Phase 3
Age: 6Years - 17Years
All Genders
NCT06607627

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

Led by Alexion Pharmaceuticals, Inc. · Updated on 2026-04-01

12

Participants Needed

13

Research Sites

218 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

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.

CONDITIONS

Official Title

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

Who Can Participate

Age: 6Years - 17Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Participants must be 6 to under 18 years old (12 to under 18 years old in the USA) at consent/assent signing
  • Participants must have vaccination against meningococcal infection from serogroups A, C, W, Y (and B where available) within 3 years prior to intervention
  • Participants vaccinated less than 2 weeks before Day 1 must receive prophylactic antibiotics for at least 2 weeks after vaccination
  • Diagnosis of myasthenia gravis with generalized muscle weakness classified as MGFA Class II, III, or IV
  • Positive blood test for autoantibodies against acetylcholine receptor (AChR)
Not Eligible

You will not qualify if you...

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

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 13 locations

1

Research Site

Washington D.C., District of Columbia, United States, 20010

Actively Recruiting

2

Research Site

Norfolk, Virginia, United States, 23507

Actively Recruiting

3

Research Site

Joinville, Brazil, 89202-451

Actively Recruiting

4

Research Site

Salvador, Brazil, 41253-190

Actively Recruiting

5

Research Site

São José do Rio Preto, Brazil, 15090-000

Actively Recruiting

6

Research Site

São Paulo, Brazil, 0438-002

Actively Recruiting

7

Research Site

São Paulo, Brazil, 05403-000

Actively Recruiting

8

Research Site

Saitama-Shi, Japan, 330-8777

Actively Recruiting

9

Research Site

Bydgoszcz, Poland, 85-065

Withdrawn

10

Research Site

Lodz, Poland, 93-338

Withdrawn

11

Research Site

Warsaw, Poland, 02-097

Actively Recruiting

12

Research Site

New Taipei City, Taiwan, 23561

Actively Recruiting

13

Research Site

Taipei, Taiwan, 11101

Actively Recruiting

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Research Team

A

Alexion Pharmaceuticals, Inc. (Sponsor)

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

TREATMENT

Number of Arms

1

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