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A Multi-center, Open-label Extension, Safety Study of Mepolizumab in Subjects With Hypereosinophilic Syndrome (HES) From Study 200622

NCT03306043 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 102

Last updated 2020-06-23

Study results available
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Summary

This is an open-label extension study to Study 200622.In this study subjects from Study 200622 will be continued on 4-weekly dosing with open-label mepolizumab 300 milligram (mg) subcutaneously (SC) for an additional 20 Weeks after completing the 32 Week study assessments post-randomization, while they continue with their background HES therapy per standard of care (SoC). Subjects from study 200622 will participate in this extension study if they had completed the 32-Week treatment period in study 200622 or if they were withdrawn from the study pre-maturely, but were continued in the study per protocol until 32 Weeks from randomization. Data from this study (205203) and 200622 will be combined to provide up to 52-Week exposure data to further characterize the long-term safety profile of mepolizumab and provide additional data on the clinical benefit in HES subjects beyond 32 Weeks. The duration of the study participation will be 20 Weeks for subjects who continue with mepolizumab treatment via MHE104317/MHE112562 after this open-label extension study; and 28 Weeks for subjects who do not continue with MHE104317/MHE112562.

Conditions

  • Hypereosinophilic Syndrome

Interventions

DRUG

Mepolizumab

Mepolizumab will be available as 100 mg vial for injection. Subjects will receive three 100 mg SC injections for every 4 Weeks for a total of 5 doses during 20 Week treatment period.

Sponsors & Collaborators

Principal Investigators

  • GSK Clinical Trials · GlaxoSmithKline

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
12 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-11-13
Primary Completion
2019-12-30
Completion
2019-12-30
FDA Drug
Yes

Countries

  • United States
  • Argentina
  • Belgium
  • Brazil
  • France
  • Germany
  • Italy
  • Mexico
  • Poland
  • Romania
  • Russia
  • Spain
  • United Kingdom

Study Locations

More Related Trials

Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03306043 on ClinicalTrials.gov