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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/show/NCT00455195




Registration number
NCT00455195
Ethics application status
Date submitted
30/03/2007
Date registered
3/04/2007
Date last updated
7/03/2014

Titles & IDs
Public title
Late-Onset Treatment Study Extension Protocol
Scientific title
An Open-Label Extension Study of Patients With Late-Onset Pompe Disease Who Were Previously Enrolled in Protocol AGLU02704
Secondary ID [1] 0 0
2006-003644-31
Secondary ID [2] 0 0
AGLU03206
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Pompe Disease (Late-Onset) 0 0
Glycogen Storage Disease Type II (GSD-II) 0 0
Glycogenesis Type II 0 0
Acid Maltase Deficiency (AMD) 0 0
Condition category
Condition code
Metabolic and Endocrine 0 0 0 0
Metabolic disorders
Metabolic and Endocrine 0 0 0 0
Other metabolic disorders
Human Genetics and Inherited Disorders 0 0 0 0
Other human genetics and inherited disorders

Intervention/exposure
Study type
Interventional(has expanded access)
Description of intervention(s) / exposure
Other interventions - alglucosidase alfa

Experimental: Alglucosidase Alfa/Alglucosidase Alfa - Participants who received alglucosidase alfa during the double-blind study and, if they completed the double-blind study, continued that treatment during the extension study. Participants received an intravenous (IV) infusion of 20 mg/kg of alglucosidase alfa every other week (qow) until their participation in both the AGLU02704 (NCT00158600) and AGLU03206 studies combined equaled a minimum of 104 weeks.

Experimental: Placebo/Alglucosidase Alfa - Participants given placebo during the double-blind study, completed the double-blind study (study AGLU02704, NCT00158600), and qualified to continue into the extension study on alglucosidase alfa. Participants received an intravenous (IV) infusion of 20 mg/kg of alglucosidase alfa every other week (qow) for up to 52 weeks. Only the alglucosidase alfa treatment experience is included in this extension study.


Other interventions: alglucosidase alfa
IV infusion of 20 mg/kg; every other week (qow)

Intervention code [1] 0 0
Other interventions
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Summary of Participants Reporting Treatment-Emergent Adverse Events For Participants Treated With Alglucosidase Alfa During Study AGLU02704 (NCT00158600) - The numbers of participants who experienced Adverse Events (AEs), Serious Adverse Events (SAEs), treatment-related AEs, and Infusion Associated Reactions (IARs). Summary is based on treatment-emergent AEs (TEAEs), defined as AEs that occurred following the initiation of study treatment with alglucosidase alfa.
Participants with long-term exposure to alglucosidase alfa (those from the Alglucosidase Alfa/Alglucosidase Alfa treatment group) are included. Time frames are stated from the start of the double-blind study AGLU02704 (NCT00158600).
Timepoint [1] 0 0
Week 0 to 2.5 years
Primary outcome [2] 0 0
Baseline Values (Week 0) of Functional Endurance as Measured by Six-Minute Walk Test (6MWT) For Participants Treated With Alglucosidase Alfa During Study AGLU02704 (NCT00158600) - Six-Minute Walk Test (6MWT) measures the distance walked (in meters) in 6 minutes. A longer distance indicates greater endurance. Time frames are stated from the start of the double-blind study AGLU02704 (NCT00158600).
Timepoint [2] 0 0
Week 0
Primary outcome [3] 0 0
Change From Baseline (Week 0) in the Six-Minute Walk Test (6MWT) at Week 104 For Participants Treated With Alglucosidase Alfa During Study AGLU02704 (NCT00158600) - Six-Minute Walk Test (6MWT) measures the distance walked (in meters) in 6 minutes. A longer distance indicates greater endurance. Time frames are stated from the start of the double-blind study AGLU02704 (NCT00158600). Change is calculated as the value minus the baseline value.
Timepoint [3] 0 0
Week 0, Week 104
Primary outcome [4] 0 0
Baseline Values (Week 0) for Percent Predicted Forced Vital Capacity (FVC) For Participants Treated With Alglucosidase Alfa During Study AGLU02704 (NCT00158600) - Forced vital capacity (FVC) is a standard pulmonary function test used to quantify respiratory muscle weakness. FVC is the volume of air that can forcibly be blown out after full inspiration in the upright position, measured in liters. Predicted forced vital capacity is based on a formula using sex, age and height of a person, and is an estimate of healthy lung capacity. Percent of predicted FVC = (observed value)/(predicted value) * 100%. Time frames are stated from the start of the double-blind study AGLU02704 (NCT00158600).
Timepoint [4] 0 0
Week 0
Primary outcome [5] 0 0
Change From Baseline (Week 0) in the Percent Predicted Forced Vital Capacity (FVC) at Week 104 For Participants Treated With Alglucosidase Alfa During Study AGLU02704 (NCT00158600) - Forced vital capacity (FVC) is a standard pulmonary function test used to quantify respiratory muscle weakness. FVC is the volume of air that can forcibly be blown out after full inspiration in the upright position, measured in liters. Predicted forced vital capacity is based on a formula using sex, age and height of a person, and is an estimate of healthy lung capacity. Percent of predicted FVC = (observed value)/(predicted value) * 100%. Time frames are stated from the start of the double-blind study AGLU02704 (NCT00158600). Change is calculated as the value minus the baseline value.
Timepoint [5] 0 0
Week 0, Week 104
Secondary outcome [1] 0 0
Baseline Values (Week 0) for Percent Predicted Proximal Muscle Strength of the Lower Limbs as Measured by Quantitative Muscle Testing (QMT) For Participants Treated With Alglucosidase Alfa During Study AGLU02704 (NCT00158600) - Quantitative muscle testing (QMT) is a standardized system to measure muscle force production during maximal voluntary isometric contraction. QMT data were collected directly from sensors into laptop computers. Predicted normal values for QMT are based on a formula using sex, age and body mass index of a person, and are an estimate of healthy muscle force. Percent of predicted QMT = (observed value)/(predicted value) * 100%. The QMT Leg Score is the average of the bilateral means for percent predicted knee flexors and extensors. A value of 100% indicates 'normal' muscle strength.
Timepoint [1] 0 0
Week 0
Secondary outcome [2] 0 0
Change From Baseline (Week 0) for Percent Predicted Proximal Muscle Strength of the Lower Limbs as Measured by Quantitative Muscle Testing (QMT) at Week 104 For Participants Treated With Alglucosidase Alfa During Study AGLU02704 (NCT00158600) - Quantitative muscle testing (QMT) is a standardized system to measure muscle force production during maximal voluntary isometric contraction. QMT data were collected directly from sensors into laptop computers. Predicted normal values for QMT are based on a formula using sex, age and body mass index of a person, and are an estimate of healthy muscle force. Percent of predicted QMT = (observed value)/(predicted value) * 100%. The QMT Leg Score is the average of the bilateral means for percent predicted knee flexors and extensors. A value of 100% indicates 'normal' muscle strength.
Timepoint [2] 0 0
Week 0, Week 104
Secondary outcome [3] 0 0
Baseline Values (Week 0) for Quality of Life Related to Physical Component Score (PCS) as Measured by the Medical Outcomes Study (MOS) Short Form-36 Health Survey For Participants Treated With Alglucosidase Alfa During Study AGLU02704 (NCT00158600) - The Medical Outcomes Study Short Form (MOS SF)-36 questionnaire consists of 36 items grouped into 8 domains designed to assess generic health-related quality of life in healthy and ill adult populations. Physical Component Score reports the four domains of physical functioning, role-physical, bodily pain, and general health and are standardized as Z-scores (scale of 0-100). Higher scores are associated with better quality of life. Time frames are stated from the start of the double-blind study AGLU02704 (NCT00158600).
Timepoint [3] 0 0
Week 0
Secondary outcome [4] 0 0
Change From Baseline in Quality of Life Related to Physical Component Score (PCS) as Measured by the Medical Outcomes Study (MOS) Short Form-36 Health Survey For Participants Treated With Alglucosidase Alfa During Study AGLU02704 (NCT00158600) - The Medical Outcomes Study Short Form (MOS SF)-36 questionnaire consists of 36 items grouped into 8 domains designed to assess generic health-related quality of life in healthy and ill adult populations. Physical Component Score reports the four domains of physical functioning, role-physical, bodily pain, and general health and is standardized as Z-scores (scale of 0-100). Higher scores are associated with better quality of life. Change is calculated as the value minus the baseline value. Time frames are stated from the start of the double-blind study AGLU02704 (NCT00158600).
Timepoint [4] 0 0
Week 0 , Week 104

Eligibility
Key inclusion criteria
- Patient must have completed protocol AGLU02704 (NCT00158600)

- Patient must provide signed, informed consent prior to performing any study-related
procedures

- Patient (and patient's legal guardian if patient is under 18 years of age) must have
the ability to comply with the clinical protocol

- A female patient of childbearing potential must have a negative pregnancy test at
Baseline. (note: all female patients of childbearing potential and sexually mature
males must use a medically accepted method of contraception throughout the study.)
Minimum age
8 Years
Maximum age
No limit
Gender
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
- The patient has a medical condition, serious intercurrent illness, or other
extenuating circumstance that, in the opinion of the Investigator, would preclude
treatment with alglucosidase alfa.

Study design
Purpose of the study
Treatment
Allocation to intervention
Non-randomised trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Phase 4
Type of endpoint(s)
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
- Westmead
Recruitment postcode(s) [1] 0 0
- Westmead
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Alaska
Country [2] 0 0
United States of America
State/province [2] 0 0
Arizona
Country [3] 0 0
United States of America
State/province [3] 0 0
California
Country [4] 0 0
United States of America
State/province [4] 0 0
District of Columbia
Country [5] 0 0
United States of America
State/province [5] 0 0
Florida
Country [6] 0 0
United States of America
State/province [6] 0 0
Illinois
Country [7] 0 0
United States of America
State/province [7] 0 0
Kansas
Country [8] 0 0
United States of America
State/province [8] 0 0
Louisiana
Country [9] 0 0
United States of America
State/province [9] 0 0
Massachusetts
Country [10] 0 0
United States of America
State/province [10] 0 0
Nebraska
Country [11] 0 0
United States of America
State/province [11] 0 0
New York
Country [12] 0 0
United States of America
State/province [12] 0 0
North Carolina
Country [13] 0 0
United States of America
State/province [13] 0 0
Ohio
Country [14] 0 0
United States of America
State/province [14] 0 0
Oklahoma
Country [15] 0 0
United States of America
State/province [15] 0 0
Oregon
Country [16] 0 0
United States of America
State/province [16] 0 0
Pennsylvania
Country [17] 0 0
United States of America
State/province [17] 0 0
South Carolina
Country [18] 0 0
United States of America
State/province [18] 0 0
Texas
Country [19] 0 0
United States of America
State/province [19] 0 0
Washington
Country [20] 0 0
United States of America
State/province [20] 0 0
Wisconsin
Country [21] 0 0
Canada
State/province [21] 0 0
Alberta
Country [22] 0 0
Canada
State/province [22] 0 0
Quebec
Country [23] 0 0
France
State/province [23] 0 0
Paris
Country [24] 0 0
Netherlands
State/province [24] 0 0
Rotterdam

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Name
Genzyme, a Sanofi Company
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
Pompe disease (also known as glycogen storage disease Type II) is caused by a deficiency of a
critical enzyme in the body called acid alpha-glucosidase (GAA). Normally, GAA is used by the
body's cells to break down glycogen (a stored form of sugar) within specialized structures
called lysosomes. In patients with Pompe disease, an excessive amount of glycogen accumulates
and is stored in various tissues, especially heart and skeletal muscle, which prevents their
normal function. The objective of this extension study is to assess the long-term safety and
efficacy of alglucosidase alfa treatment in patients with Late-Onset Pompe Disease who were
previously treated under the placebo-controlled, double-blind study AGLU02704 (NCT00158600).
Trial website
https://clinicaltrials.gov/show/NCT00455195
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Medical Monitor
Address 0 0
Genzyme, a Sanofi Company
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
Other publications