Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 3 Interventional Results available

Cessation Versus Continuation of Long-term Mepolizumab in Severe Eosinophilic Asthma Patients

ClinicalTrials.gov ID: NCT02555371

Public ClinicalTrials.gov record NCT02555371. 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.

ClinicalTrials.gov public records Last synced Oct 21, 2026, 9:55 PM EDT

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-center, Randomized, Double-blind, Placebo Controlled, Parallel Group Study to Compare Cessation Versus Continuation of Long-term Mepolizumab Treatment in Patients With Severe Eosinophilic Asthma (201810)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Primary objective of the study is to evaluate whether patients with severe eosinophilic asthma who have received long-term treatment with mepolizumab (at least 3 years) need to maintain treatment with mepolizumab to continue to receive benefit. Subjects who participated in the open-label studies MEA115666 or 201312 with at least 6 months of treatment with mepolizumab prior to Visit 1 and who have no more than 2 consecutive missed doses of mepolizumab treatment will be eligible to participate in this study. This study will be conducted in 4 parts in approximately 300 subjects. Part A will be Variable Open-Label Run-in (for subjects with less than 3 years of mepolizumab treatment). Once the required 3 year exposure is reached, subjects will enter Part B- Fixed Open-Label Run-In (4 weeks to 8 weeks). During Part A and B subjects will be administered Open-label mepolizumab (100 milligram \[mg\] Subcutaneous \[SC\]) every 4 weeks. Part C will be the randomized double-blinded part. Upon completion of Part B, eligible subjects will be randomized to mepolizumab (100 mg SC) every 4 weeks or placebo administered SC every 4 weeks for 52 weeks. Subjects discontinuing investigational product (IP) due to a clinically significant asthma exacerbation will then enter optional Part D of the study. During Part D, subjects receive open-label mepolizumab in addition to their standard of care therapy for the remainder of the study, through Part D up to 52-weeks post-randomization. An Exit Visit will be conducted 52 weeks after randomization in order to assess subject's efficacy parameters, immunogenicity status, and to conduct additional safety assessments. Eligible subjects will participate in the study ranging from 56 to192 weeks, depending on the duration of Part A (0 to 132 weeks) and Part B (4 to 8 weeks).

Study identification

NCT ID
NCT02555371
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
GlaxoSmithKline
Industry
Enrollment
306 participants

Conditions and interventions

Conditions

Interventions

Biological · 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
Jan 7, 2016 (Actual)
Primary completion
Jul 24, 2019 (Actual)
Completion
Jul 24, 2019 (Actual)
Last update posted
Feb 5, 2020

2016 – 2019

United States locations

U.S. sites
13
U.S. states
11
U.S. cities
13
Facility City State ZIP Site status
GSK Investigational Site Long Beach California 90808 —
GSK Investigational Site Riverside California 92506 —
GSK Investigational Site Denver Colorado 80206 —
GSK Investigational Site New Haven Connecticut 6504 —
GSK Investigational Site Albany Georgia 31707 —
GSK Investigational Site Baltimore Maryland 21224 —
GSK Investigational Site Rochester Minnesota 55905 —
GSK Investigational Site Rochester New York 14642 —
GSK Investigational Site Durham North Carolina 27705 —
GSK Investigational Site Winston-Salem North Carolina 27104 —
GSK Investigational Site Hershey Pennsylvania 17033 —
GSK Investigational Site Nashville Tennessee 37212 —
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 60 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02555371, 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 Feb 5, 2020 · Synced Oct 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 public registry record, listed eligibility criteria, and available contact information for NCT02555371 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →