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MEA112997 Open-label Long Term Extension Safety Study of Mepolizumab in Asthmatic Subjects

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
GlaxoSmithKline Identifier:
First received: September 13, 2012
Last updated: December 9, 2016
Last verified: December 2016
This is a multi-centre, open-label long term safety study of 100 milligrams (mg) mepolizumab administered subcutaneously (SC) in addition to standard of care in subjects who participated in the MEA112997 study. At each clinic visit, adverse events will be assessed and exacerbations will also be reviewed.

Condition Intervention Phase
Drug: Mepolizumab
Phase 3

Study Type: Interventional
Study Design: Endpoint Classification: Safety Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: MEA115666: A Multi-centre, Open-label, Long Term Safety Study of Mepolizumab in Asthmatic Subjects Who Participated in the MEA112997 Trial

Resource links provided by NLM:

Further study details as provided by GlaxoSmithKline:

Primary Outcome Measures:
  • Frequency of all Adverse Events [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    Frequency of all Adverse Events

Secondary Outcome Measures:
  • ECG parameters [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    ECG parameters as measured by mean change and maximum change from baseline in QTcF and QT

  • Clinical laboratory tests [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    Clinical laboratory tests as measured by abnormal parameters for hematology and clinical chemistry

  • Vital Signs [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    Vital signs as measured by change in pulse and BP from baseline

  • Annualized rate of exacerbation [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    Annualized rate of exacerbation

  • Quality of Life (QOL) [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    QOL as measured by Asthma Control Questionnaire score (ACQ)-5

  • Lung Function [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    Lung function as measured by changes from baseline in Forced vital capacity (FVC) and Forced expiratory volume in 1 second (FEV1) measured by clinic spirometry

  • Immunogenecity [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    Immunogenecity as measured by positive neutralizing antibody

  • Number of participant withdrawals [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    Number of participant withdrawals due to lack of efficacy or due to adverse events were summarized

  • Number of hospitalizations due to adverse events including asthma exacerbations [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    Number of hospitalizations due to adverse events including asthma exacerbations

  • Frequency of immune reactions [ Time Frame: 48 months ] [ Designated as safety issue: No ]
    Frequency of immune reactions

Estimated Enrollment: 150
Study Start Date: September 2012
Estimated Study Completion Date: June 2017
Estimated Primary Completion Date: June 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Mepolizumab
Subjects will receive 100 mg of mepolizumab (in 1ml polypropylene syringe) injected subcutaneously (SC) approximately every 4 weeks.
Drug: Mepolizumab
100 mg of mepolizumab will be injected subcutaneously (SC) once every 4 weeks


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Genders Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Informed Consent.
  • MEA112997 Study Participation: Received at least 2 doses of double-blind investigational product during the MEA112997 trial.
  • MEA112997 Treatment Assignment: If the subject received mepolizumab, they must have had a positive risk: benefit ratio.
  • Currently being treated with a controller medication and the subject has been on a controller medication for the past 12 weeks.
  • Male or Eligible Female Subjects. To be eligible for entry into the study, females of childbearing potential must commit to consistent and correct use of an acceptable method of birth control for the duration of the trial and for 4 months after the last study drug administration.

Exclusion Criteria:

  • Hypersensitivity related to mepolizumab.
  • Clinically significant change in health status since completing participation in the MEA112997 trial.
  • A current malignancy or previous history of cancer in remission for less than 12 months prior to screening.
  • For those subjects who had a SAE in MEA112997 that was assessed as possibly related to mepolizumab by the investigator.
  • Subjects who are pregnant or breastfeeding. Subjects should not be enrolled if they plan to become pregnant during the time of study participation.
  • Screening ECG which has a clinically significant abnormality.
  • Received Xolair (omalizumab) within the past 130 days.
  • Participated in a clinical trial within the past 30 days or have received investigational medication within five terminal half-lives of Screen Visit, whichever is longer.
  • Current smokers.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01691859

  Show 67 Study Locations
Sponsors and Collaborators
Study Director: GSK Clinical Trials GlaxoSmithKline
  More Information

Responsible Party: GlaxoSmithKline Identifier: NCT01691859     History of Changes
Other Study ID Numbers: 115666 
Study First Received: September 13, 2012
Last Updated: December 9, 2016
Health Authority: Ukraine: Ministry of Health of Ukraine, State Expert Center (SEC) of the Ministry of Health of Ukraine
Romania: Agentia Nationala a Medicamentului
France: Agence Nationale de Sécurité du Médicament et des produits de santé
Chile: Ministerio de Salud de Chile
Argentina: Administracion Nacional de Medicamentos, Alimentos y Tecnologia Medica
United States: Food and Drug Administration
Russia: Russian Ministry of Health
Canada: Health Canada
Korea: Korea Food & Drug Administration
Germany: Bundesinstitut für Arzneimittel und Medizinprodukte
United Kingdom: Medicines and Healthcare Products Regulatory Agency
Australia: Therapeutic Goods Administration

Keywords provided by GlaxoSmithKline:
extension study
Severe refractory asthma
eosinophils processed this record on January 14, 2017