New study tracks Nucala's Long-Term impact on rare inflammatory disease
NCT ID NCT03557060
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study followed about 300 people with EGPA (a rare disease causing inflammation in blood vessels) who were treated with Nucala injections for up to 2 years. Researchers monitored side effects, how well the drug controlled symptoms, and how long it took for the disease to flare up again. The goal was to see if Nucala remains safe and effective when used long-term in everyday medical practice.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Nucala (mepolizumab)
- What this could lead to
- If successful, this could confirm that long-term Nucala is a safe and effective way to control EGPA and prevent relapses.
- What could go wrong
- This is an observational study, not a controlled trial, so results may be less definitive. Side effects are possible, and the drug may not work for everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
-
4,115 people
The number who actually took part.
- Started
-
Jun 2018
- Finished
-
Jul 2025
- Lead sponsor
-
A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Subjects who administered NUCALA for the treatment of EGPA after its approval of indication will be included in the study.
- Ages
-
Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * All subjects who administered NUCALA for the treatment of EGPA after its approval of indication will be included in the study. In addition, after the approval, subjects who had already received NUCALA for EGPA prior to the conclusion of the contract will also be included. * Subjects who had been registered to NCT03028480 for bronchial asthma, but had a change in treatment purpose from bronchial asthma to EGPA during the observation period Exclusion Criteria: * Not applicable.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
GSK Investigational Site
Tokyo, 107-0052, Japan
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New drug MT-2990 tested in rare blood vessel disease