Open-Label Extension Of Intravenous Mepolizumab In Patients With Hypereosinophilic Syndrome - Full Text View

Sponsored by:	GlaxoSmithKline
Information provided by:	GlaxoSmithKline
ClinicalTrials.gov Identifier:	NCT00097370

Purpose

This is an open label study of mepolizumab 750 mg intravenous in those subjects who participated in study 100185 to evaluate the long term safety and efficacy of mepolizumab in subjects with hypereosinophilic syndrome. The study will also evaluate the optimal dosing frequency for clinical use, the effects on corticosteroid reduction, and decrease of signs and symptoms of Hypereosinophilic Syndrome.

Condition	Intervention	Phase
Hypereosinophilia Hypereosinophilic Syndrome	Drug: mepolizumab	Phase III

Drug Information available for: Mepolizumab

U.S. FDA Resources

Study Type:	Interventional
Study Design:	Open Label, Safety/Efficacy Study, Single Group Assignment, Treatment
Official Title:	An Open-Label Extension Study to Study MHE100185, to Evaluate Long-Term Safety, Efficacy and Optimal Dosing Frequency of 750 mg Intravenous Mepolizumab in Subjects With Hypereosinophilic Syndromes

Further study details as provided by GlaxoSmithKline:

Primary Outcome Measures:

Frequency of all Adverse Events

Secondary Outcome Measures:

- Describe maintenance of durable effect on prednisone dose level. - Describe durable effect in reducing blood eosinophil count. - Optimal dosing frequency of mepolizumab. - Quality of life measures.
Proportion of subjects achieving a prednisone level of ≤10mg (as sole background therapy) at the end of study MHE100901
Proportion of subjects achieving an eosinophil level of < 600cell/ul (in addition to the lowest background HES therapy) at the end of study MHE100901
For those subjects who completed 9 months of dosing in study MHE100185 and achieved a prednisone level ≤10mg ; the proportion of subjects achieving ≤ 10mg prednisone (as sole background therapy) for ≥ 3months
For those subjects who completed 9 months of dosing in study MHE100185 and achieved a prednisone level > 10mg at the end of Study MHE100185; the proportion of subjects achieving ≤10mg prednisone (as sole background therapy) for ≥ 8 weeks
For those subjects who entered stage 2 from study MHE100185 with a prednisone level of ≤10mg prednisone; the proportion of subjects achieving a prednisone dose ≤10mg (as sole background therapy) for ≥3 months
QoL and current health status: mental summary score of the SF12TM 3 months after the start of study MHE100901 and every 6 months thereafter
Blood eosinophil count (with consideration of their HES background therapy) during Stages 1-3
Proportion of subjects by dosing frequency groups (defined as two week dosing ranges greater than a 4 week interval) at the end of Stage 2
Pruritus visual analogue scale (pVAS) 3 months after the start of study MHE100901 and every 6 months thereafter
Erythema/edema score 3 months after the start of study MHE100901 and every 6 months thereafter
QoL and current health status: physical summary score of the SF12TM 3 months after the start of study MHE100901 and every 6 months thereafter
For those subjects who entered stage 1 from study MHE100185 with >10mg prednisone; the proportion of subjects achieving a prednisone dose ≤10mg (as sole background therapy) for≥3 months

Estimated Enrollment:	85
Study Start Date:	September 2004
Estimated Study Completion Date:	December 2009
Estimated Primary Completion Date:	December 2009 (Final data collection date for primary outcome measure)

Eligibility

Ages Eligible for Study:	18 Years to 75 Years
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

Inclusion criteria:

Signed informed consent.
Subjects who have participated in Study MHE100185 and have been administered at least 2 doses of study medication.
Not pregnant or nursing
Of non-childbearing potential (i.e., women who had a hysterectomy, are post-menopausal which is defined as 1 year without menses, have both ovaries surgically removed, or have current documented tubule ligation); or
Of childbearing potential (i.e., women with functional ovaries and no documented impairment of oviductal or uterine function that would cause sterility). This category includes women with oligomenorrhoea [even severe], women who are perimenopausal or have just begun to menstruate. These women must have a negative serum pregnancy test at the Screening Visit, and agree to one of the following:1). Complete abstinence from intercourse from 2 weeks prior to administration of the first dose of investigational product until 3 months after the last dose of investigational product;

Or 2). Consistent and correct use of one of the following acceptable methods of birth control for one month prior to the start of the investigation product and three months after the last dose:Male partner who is sterile prior to the female subject's entry into the study and is the sole sexual partner for the female subjects; Implants of levonorgestrel;Injectable progestogen;Any intrauterine device (IUD) with a documented failure rate of less than 1% per year; Oral contraceptives (either combined or progestogen only)

Exclusion criteria:

Has developed life-threatening or other serious illness or clinical manifestation deemed inappropriate for inclusion in study per the principal investigator
Has any of the following abnormal laboratory values at the Week36/EW Visit of Study MHE100185: • Serum creatinine ≥3 times institutional upper limit normal (ULN); • AST or/ALT ≥5 times institutional ULN; • Platelet count < 50,000/uL
Has developed abnormal cardiac functions, as the following, within past 3 months:• Left ventricular ejection fraction (LVEF) < 20%; • NYHA class IIIb or IV; • Angina or acute myocardial infarction
Has developed allergic reaction to Study MHE100185 investigational product Use of an investigational drug as concurrent medication
Does not complete Week36/EW Visit assessments required in Study MHE100185
Has completed or been terminated from Study MHE100185 for more than 1 month
Recent history or suspicion of current drug abuse or alcohol abuse within the last 6 months
Positive pregnancy test at the Week36/EW Visit of Study MHE100185

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00097370

Show 22 Study Locations

Sponsors and Collaborators

GlaxoSmithKline

Investigators

Study Director:

GSK Clinical Trials, MB,BS; PhD; FRCP

GlaxoSmithKline

More Information

No publications provided

Responsible Party:	GSK ( Study Director )
Study ID Numbers:	100901
Study First Received:	November 22, 2004
Last Updated:	February 26, 2009
ClinicalTrials.gov Identifier:	NCT00097370 History of Changes
Health Authority:	United States: Food and Drug Administration

Keywords provided by GlaxoSmithKline:

Anti-IL-5
Hypereosinophilia
Hypereosinophilic Syndrome
Mepolizumab
Open-label

Study placed in the following topic categories:

Hematologic Diseases
Hypereosinophilic Syndrome
Idiopathic Hypereosinophilic Syndrome
Leukocyte Disorders
Eosinophilia

Additional relevant MeSH terms:

Pathologic Processes
Disease
Hematologic Diseases
Hypereosinophilic Syndrome

Syndrome
Leukocyte Disorders
Eosinophilia

ClinicalTrials.gov processed this record on March 13, 2009