Last updated: 07/17/2024 17:23:00

A study to compare the pharmacokinetics of mepolizumab as a liquid drug in a safety syringe or an autoinjector versus lyophilised drug

GSK study ID
204958
Clinicaltrials.gov ID
EudraCT ID
EU CT Number
Not applicable
Trial status
Study complete
Study complete
Overview
Eligibility
Locations
Study documents
Results summary
Plain language summaries
Additional information

Trial overview

Official title: An open label, randomised, three arm, single dose, multicentre, parallel group study in healthy subjects to compare the pharmacokinetics of subcutaneous mepolizumab when delivered as a liquid drug product in a safety syringe or an auto injector with a reconstituted lyophilised drug product from a vial
Trial description: Mepolizumab (SB-240563) is a humanized monoclonal antibody (Immunoglobulin G1, kappa, mAb) that blocks human interleukin-5 (hIL-5) from binding to the interleukin (IL)-5 receptor complex expressed on the eosinophil cell surface and thus inhibits signaling. This study will compare the pharmacokinetics and safety of mepolizumab administered as a liquid drug product in two different devices with the reconstituted lyophilized drug product in healthy subjects. Subjects will receive a single administration of 100 milligram (mg) mepolizumab as a single injection. The randomization will be stratified by body weight (<70 kilogram (kg), 70 <80 kg and >=80 kg) and the site of injection will be randomized 1:1:1 to the upper arm, abdomen or thigh. Approximately 243 healthy subjects will be randomized so that at least 9 subjects are randomized to each mepolizumab treatment within each weight strata and 3 subjects within each mepolizumab treatment, weight strata and injection site. Each subject will participate in the study for up to approximately 16 weeks (up to 85 days after drug administration), and will have a screening visit, a single dose treatment period, and a follow-up visit.
Primary purpose:
Treatment
Trial design:
Parallel Assignment
Masking:
None (Open Label)
Allocation:
Randomized
Primary outcomes:

Maximum observed plasma concentration (Cmax) of mepolizumab

Timeframe: Day 1 (pre-dose, 2 hours, and 8 hours post-dose), Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 22, 29, 43, 57 and 85 post-dose

Area under the plasma concentration time curve (AUC) from time zero to the time of last quantifiable concentration (AUC[0-t]), AUC from time zero extrapolated to infinite time (AUC[0-inf]) of mepolizumab

Timeframe: Day 1 (pre-dose, 2 hours, and 8 hours post-dose), Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 22, 29, 43, 57 and 85 post-dose

Secondary outcomes:

Time to Cmax (tmax) and last time point where the concentration is above the limit of quantification (tlast) of mepolizumab

Timeframe: Day 1 (pre-dose, 2 hours, and 8 hours post-dose), Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 22, 29, 43, 57 and 85 post-dose

Apparent clearance (CL/F) of mepolizumab

Timeframe: Day 1 (pre-dose, 2 hours, and 8 hours post-dose), Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 22, 29, 43, 57 and 85 post-dose

Apparent volume of distribution (Vd/F) of mepolizumab

Timeframe: Day 1 (pre-dose, 2 hours, and 8 hours post-dose), Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 22, 29, 43, 57 and 85 post-dose

Terminal phase elimination rate constant (lambda z) of mepolizumab

Timeframe: Day 1 (pre-dose, 2 hours, and 8 hours post-dose), Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 22, 29, 43, 57 and 85 post-dose

Terminal phase half-life (t½) of mepolizumab

Timeframe: Day 1 (pre-dose, 2 hours, and 8 hours post-dose), Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 22, 29, 43, 57 and 85 post-dose

Percentage of AUC(0-inf) obtained by extrapolation (% AUCex) of mepolizumab

Timeframe: Day 1 (pre-dose, 2 hours, and 8 hours post-dose), Days 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 22, 29, 43, 57 and 85 post-dose

Number of participants with on-treatment non-serious adverse events (AEs) and serious AEs (SAEs)

Timeframe: Up to 28 days post-dose

Number of participants with on-treatment systemic reactions and injection site reactions

Timeframe: Up to 28 days post-dose

Number of participants with hematology parameters shifts from Baseline relative to normal range

Timeframe: Up to Day 85

Number of participants with clinical chemistry parameters shifts from Baseline relative to normal range

Timeframe: Up to Day 85

Change from Baseline in Diastolic blood pressure (DBP) and systolic blood pressure (SBP)

Timeframe: Baseline and up to Day 85

Change from Baseline in pulse rate

Timeframe: Baseline and up to Day 85

Change from Baseline in temperature

Timeframe: Baseline and up to Day 85

Change from Baseline in respiratory rate

Timeframe: Baseline and up to Day 85

Number of participants with change from Baseline in electrocardiogram (ECG) findings

Timeframe: Baseline and Day 85

Number of participants with positive anti-mepolizumab binding antibodies

Timeframe: Up to Day 85

Number of participants with positive neutralizing antibodies

Timeframe: Up to Day 85

Interventions:
  • Biological/vaccine: Lyophilized mepolizumab
  • Biological/vaccine: Liquid mepolizumab
  • Device: Prefilled autoinjector
  • Device: Prefilled Safety Syringe
  • Enrollment:
    246
    Primary completion date:
    2017-11-08
    Observational study model:
    Not applicable
    Time perspective:
    Not applicable
    Clinical publications:
    Shabbir S, Pouliquen I, Bentley J, Bradford E, Kaisermann M, Albayaty M.The pharmacokinetics and relative bioavailability of mepolizumab 100 mg liquid formulation administered subcutaneously to healthy participants: a randomized trial.Clin Pharmacol Drug Devel.2019
    Shabbir S, Pouliquen I, Bentley J, Bradford E, Kaisermann M, Albayaty M.The pharmacokinetics and relative bioavailability of mepolizumab 100 mg liquid formulation administered subcutaneously to healthy participants: a randomized trial.Clin Pharmacol Drug Devel.2020;9(3):375-385 DOI: 10.1002/cpdd.726 PMID: 31317668
    Medical condition
    Asthma
    Product
    mepolizumab
    Collaborators
    Not applicable
    Study date(s)
    January 2017 to August 2017
    Type
    Interventional
    Phase
    3

    Participation criteria

    Sex
    Female & Male
    Age
    18+ years
    Accepts healthy volunteers
    Yes
    • Inclusion Criteria
    • 18 years of age and over at the time of signing the informed consent.

    Trial location(s)

    Location
    Status
    Contact us
    Contact us
    Location
    GSK Investigational Site
    Baltimore, Maryland, United States, 21225
    Status
    Study Complete
    Location
    GSK Investigational Site
    Berlin, Berlin, Germany, 14050
    Status
    Study Complete
    Location
    GSK Investigational Site
    Harrow, Middlesex, United Kingdom, HA1 3UJ
    Status
    Study Complete

    Study documents

    Clinical study report
    Available language(s): English
    Protocol
    Available language(s): English
    Statistical analysis plan
    Available language(s): English

    If you wish to request for full study report, please contact - [email protected]

    Results overview

    Results posted on ClinicalTrials.gov

    Recruitment status
    Study complete
    Actual primary completion date
    2017-11-08
    Actual study completion date
    2017-11-08

    Plain language summaries

    Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.

    Additional information about the trial

    Additional information
    Not applicable
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