A Multi-center, Open-label Extension, Safety Study of Mepolizumab in Subjects With Hypereosinophilic Syndrome (HES) From Study 200622
Public ClinicalTrials.gov record NCT03306043. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Multi-centre, Open-label Extension, Safety Study to Describe the Long-term Clinical Experience of Mepolizumab in Participants With Hypereosinophilic Syndrome (HES) From Study 200622
Study identification
- NCT ID
- NCT03306043
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- GlaxoSmithKline
- Industry
- Enrollment
- 102 participants
Conditions and interventions
Conditions
Interventions
- Mepolizumab Drug
Drug
Eligibility (public fields only)
- Age range
- 12 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 12, 2017
- Primary completion
- Dec 29, 2019
- Completion
- Dec 29, 2019
- Last update posted
- Jun 22, 2020
2017 – 2019
United States locations
- U.S. sites
- 6
- U.S. states
- 5
- U.S. cities
- 6
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| GSK Investigational Site | La Jolla | California | 92093 | — |
| GSK Investigational Site | New Haven | Connecticut | 06520 | — |
| GSK Investigational Site | Rochester | Minnesota | 55905 | — |
| GSK Investigational Site | Cincinnati | Ohio | 45229 | — |
| GSK Investigational Site | Mayfield Heights | Ohio | 44124 | — |
| GSK Investigational Site | Murray | Utah | 84107 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 30 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03306043, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jun 22, 2020 · Synced Jul 24, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03306043 live on ClinicalTrials.gov.