Effect of Mepolizumab in Severe Bilateral Nasal Polyps
Public ClinicalTrials.gov record NCT03085797. 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 Randomised, Double-blind, Parallel Group PhIII Study to Assess the Clinical Efficacy and Safety of 100 mg SC Mepolizumab as an Add on to Maintenance Treatment in Adults With Severe Bilateral Nasal Polyps - SYNAPSE (StudY in NAsal Polyps Patients to Assess the Safety and Efficacy of Mepolizumab)
Study identification
- NCT ID
- NCT03085797
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- GlaxoSmithKline
- Industry
- Enrollment
- 414 participants
Conditions and interventions
Conditions
Interventions
- Mepolizumab Drug
- Placebo Drug
- Mometasone furoate Drug
Drug
Eligibility (public fields only)
- Age range
- 18 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
- May 24, 2017
- Primary completion
- Dec 10, 2019
- Completion
- Dec 10, 2019
- Last update posted
- Aug 2, 2021
2017 – 2019
United States locations
- U.S. sites
- 34
- U.S. states
- 21
- U.S. cities
- 34
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| GSK Investigational Site | Birmingham | Alabama | 35209 | — |
| GSK Investigational Site | Riverside | California | 92506 | — |
| GSK Investigational Site | Roseville | California | 95661 | — |
| GSK Investigational Site | San Diego | California | 92103 | — |
| GSK Investigational Site | Colorado Springs | Colorado | 80907 | — |
| GSK Investigational Site | Lake Mary | Florida | 32746 | — |
| GSK Investigational Site | Boise | Idaho | 83706 | — |
| GSK Investigational Site | Chicago | Illinois | 60657 | — |
| GSK Investigational Site | Des Moines | Iowa | 50312 | — |
| GSK Investigational Site | West Des Moines | Iowa | 50265 | — |
| GSK Investigational Site | Louisville | Kentucky | 40205 | — |
| GSK Investigational Site | Marrero | Louisiana | 70072 | — |
| GSK Investigational Site | White Marsh | Maryland | 21162 | — |
| GSK Investigational Site | Columbia | Missouri | 65201 | — |
| GSK Investigational Site | St Louis | Missouri | 63141 | — |
| GSK Investigational Site | Piscataway | New Jersey | 08854 | — |
| GSK Investigational Site | New York | New York | 10016 | — |
| GSK Investigational Site | Matthews | North Carolina | 28105 | — |
| GSK Investigational Site | Raleigh | North Carolina | 27607 | — |
| GSK Investigational Site | Winston-Salem | North Carolina | 27103 | — |
| GSK Investigational Site | Oklahoma City | Oklahoma | 73120 | — |
| GSK Investigational Site | Medford | Oregon | 97504 | — |
| GSK Investigational Site | Bethlehem | Pennsylvania | 18017 | — |
| GSK Investigational Site | Pittsburgh | Pennsylvania | 15213 | — |
| GSK Investigational Site | Charleston | South Carolina | 29425 | — |
| GSK Investigational Site | Orangeburg | South Carolina | 29118 | — |
| GSK Investigational Site | Dallas | Texas | 75235 | — |
| GSK Investigational Site | McKinney | Texas | 75070 | — |
| GSK Investigational Site | San Antonio | Texas | 78258 | — |
| GSK Investigational Site | North Logan | Utah | 84341 | — |
| GSK Investigational Site | Salt Lake City | Utah | 84102 | — |
| GSK Investigational Site | Lynchburg | Virginia | 24501 | — |
| GSK Investigational Site | Norfolk | Virginia | 23507 | — |
| GSK Investigational Site | Richmond | Virginia | 23235 | — |
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 67 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03085797, 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 Aug 2, 2021 · Synced Jul 21, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03085797 live on ClinicalTrials.gov.