Evaluating Rozanolixizumab for Children with Moderate to Severe Myasthenia Gravis

An Open-label, Single-arm Study Evaluating the Activity, Safety, and Pharmacokinetics of Rozanolixizumab in Pediatric Study Participants With Moderate to Severe Generalized Myasthenia Gravis

Phase2; Phase3 Interventional UCB Pharma · NCT06149559

This study is testing a new treatment called rozanolixizumab to see if it can help children with moderate to severe Myasthenia Gravis who haven't had enough success with other treatments.

Quick facts

PhasePhase2; Phase3
Study typeInterventional
Enrollment12 (estimated)
Ages2 Years to 17 Years
SexAll
SponsorUCB Pharma Industry-sponsored
Drugs / interventionsrozanolixizumab
Locations14 sites (Denton, Texas and 13 other locations)
Trial IDNCT06149559 on ClinicalTrials.gov

What this trial studies

This study assesses the safety and tolerability of rozanolixizumab, administered subcutaneously, in pediatric participants aged 2 to under 18 years diagnosed with moderate to severe generalized Myasthenia Gravis (gMG). Participants must have a documented presence of specific autoantibodies and have previously received conventional treatments for gMG. The study aims to provide additional therapeutic options for children who have not responded adequately to existing treatments.

Who should consider this trial

Good fit: Ideal candidates are children aged 2 to under 18 years with a confirmed diagnosis of generalized Myasthenia Gravis and inadequate response to current treatments.

Not a fit: Patients with severe weakness affecting their ability to participate in the study may not benefit from this treatment.

Why it matters

Potential benefit: If successful, this treatment could offer a new therapeutic option for children suffering from moderate to severe Myasthenia Gravis.

How similar studies have performed: Other studies have shown promise with similar approaches in treating Myasthenia Gravis, but this specific treatment is being evaluated in a pediatric population, making it a novel application.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Study participant must be ≥2 to \<18 years of age inclusive, at the time of signing the informed consent/assent according to local regulation
* Study participant must have a documented diagnosis of generalized Myasthenia Gravis (gMG) at Screening that includes a record confirming the presence of MG specific autoantibodies to acetylcholine receptor (AChR) or muscle-specific kinase (MuSK) prior to Screening
* Study participant has Myasthenia Gravis Foundation of America (MGFA) Clinical Classification II to IVa at Screening
* Study participant has received existing conventional treatment(s) for gMG (eg, pyridostigmine, corticosteroids, and/or immune suppressants) prior to Screening
* Study participant has had an unsatisfactory clinical response or worsening of gMG symptoms and is in need of additional therapy (for example, plasma exchange (PEX) or treatment with intravenous immunoglobulin (IVIg))

Exclusion Criteria:

* Study participant with severe weakness affecting oropharyngeal or respiratory muscles, or who has myasthenic crisis or impending crisis at Screening or Baseline
* Study participant has a known hypersensitivity to any components of the Investigational Medicinal Product (IMP) or other anti-neonatal-Fc receptor (FcRn) medications
* Study participant with any active or untreated thymoma
* Study participant has a history of thymectomy within 6 months prior to Screening
* Study participant has a clinically relevant active infection (eg, sepsis, pneumonia, or abscess) in the opinion of the Investigator, or had a serious infection (resulting in hospitalization or requiring parenteral antibiotic treatment) within 6 weeks prior to the first dose of IMP
* Study participant has received a live vaccination within 4 weeks prior to Baseline or intends to have a live vaccination during the course of the study

Where this trial is running

Denton, Texas and 13 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Generalized Myasthenia GravisgMGrozanolixizumabpediatric
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.