Table of Contents
- Overview of the studies
- Who the trials include
- What the trials measure
- Trial phases and status
- Study details by trial
- What the results could show
Overview of the studies
These clinical trials are studying ZILUCOPLAN in people with generalized myasthenia gravis (gMG), a disease that causes muscle weakness in several parts of the body.[1][2]
The available trials focus on later stages of research, with Phase 3 and Phase 4 studies listed in the source data.[1][2]
Across the trials, researchers are mainly looking at safety, long-term tolerability, and in some studies how ZILUCOPLAN behaves in the body and how it affects disease-related tests.[1][2]
Who the trials include
One trial is for pediatric participants, meaning children and adolescents, and it includes patients from 2 to under 18 years of age with gMG.[2]
Another pediatric study follows children who already took part in a previous ZILUCOPLAN study, so it is designed as a follow-up for earlier participants.[1]
The adult extension study includes people with gMG who have already completed a qualifying ZILUCOPLAN clinical study.[3]
One additional study listed in the data is a broader myasthenia gravis study that includes ZILUCOPLAN among many other treatments, but its main focus is not ZILUCOPLAN alone.[4]
What the trials measure
The pediatric long-term safety study measures treatment-emergent adverse events (health problems that appear after treatment starts), serious adverse events, treatment stopping because of side effects, and infections.[1]
The pediatric Phase 4 study measures plasma concentrations of ZILUCOPLAN, which means how much of the study drug is found in the blood, at Week 4.[2]
That same study also measures change from baseline in sheep red blood cell (sRBC) lysis and complement component 5 (C5) levels at Week 4, which are laboratory tests used in the study to track biological effects.[2]
The adult extension study measures the incidence of TEAEs, which helps show how often new side effects happen during follow-up treatment.[3]
The broader study that lists ZILUCOPLAN among several treatments measures MG-ADL and QMG changes at 24 weeks in different phases, which are scores used to track daily function and muscle weakness in myasthenia gravis.[4]
Trial phases and status
The pediatric safety follow-up study is in Phase 3 and is marked Authorised with an enrollment of 10 participants.[1]
The pediatric study of blood levels and biological effects is in Phase 4, also marked Authorised, with an enrollment of 10 participants.[2]
The adult long-term extension study is in Phase 3, is Authorised, and has a planned enrollment of 190 participants.[3]
The broader study that includes ZILUCOPLAN alongside other treatments is listed as Phase 4, Authorised, with 66 participants.[4]
Study details by trial
NCT06435312 is a long-term safety study in children with gMG who already joined a previous ZILUCOPLAN study.[1] The brief summary says it is designed to assess safety and tolerability over an extra 52 weeks of daily subcutaneous treatment.[1]
NCT06055959 studies how ZILUCOPLAN moves through the body over time and how safe it is in children with gMG.[2] Its brief summary also says it looks at both pharmacokinetics and pharmacodynamics, which means it studies drug levels in the body and the body’s response to treatment.[2]
NCT04225871 is an adult extension study that looks at long-term safety and tolerability in people with gMG who finished a qualifying ZILUCOPLAN study.[3] Its only listed primary outcome is the incidence of TEAEs.[3]
NCT06193889 is a broader study of anti-CD19 chimeric antigen receptor T-cell therapy in generalized myasthenia gravis, and it lists ZILUCOPLAN among several study drugs.[4] Its primary outcomes in the source data focus on safety, MG-ADL change, and QMG change at 24 weeks for the main study treatment being tested.[4]
What the results could show
These trials may help show whether ZILUCOPLAN can be used safely over time in children and adults with generalized myasthenia gravis.[1][3]
They may also help researchers understand whether the treatment reaches the blood in expected amounts and whether it changes study markers linked to disease activity.[2]
Because the studies are in later phases, they are especially focused on real patient experience, follow-up safety, and longer-term observation rather than early proof-of-concept testing.[1][2][3]





