Clinical Trial Results:
A Phase 4 Prospective Exploratory Muscle Biopsy, Biomarker, and Imaging Assessment Study in Patients With Late-Onset Pompe Disease Treated With Alglucosidase Alfa
Summary
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EudraCT number |
2010-020611-36 |
Trial protocol |
GB DE NL |
Global end of trial date |
19 Dec 2013
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Results information
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Results version number |
v1(current) |
This version publication date |
27 Apr 2016
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First version publication date |
09 Apr 2015
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
AGLU07310
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT01288027 | ||
WHO universal trial number (UTN) |
- | ||
Other trial identifiers |
Secondary identifier: MSC12823 | ||
Sponsors
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Sponsor organisation name |
Genzyme Corporation
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Sponsor organisation address |
500 Kendall Street, Cambridge, MA, United States, 02142
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Public contact |
Sanofi aventis recherche & développement, Trial Transparency Team, Contact-US@Sanofi.com
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Scientific contact |
Sanofi aventis recherche & développement, Trial Transparency Team, Contact-US@Sanofi.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
18 Mar 2014
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
19 Dec 2013
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
The primary objective of this study is to evaluate glycogen clearance in muscle tissue samples collected pre and post alglucosidase alfa treatment in subjects with Late-Onset Pompe disease.
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Protection of trial subjects |
Subjects were fully informed of all pertinent aspects of the clinical trial as well as the possibility to discontinue at any time in language and terms appropriate for the subject and considering the local culture. During the course of the trial, subjects were provided with individual subject cards indicating the nature of the trial the subject is participating, contact details and any information needed in the event of a medical emergency.
Collected personal data and human biological samples were processed in compliance with the Sanofi-Aventis Group Personal Data Protection Charter ensuring that the Group abides by the laws governing personal data protection in force in all countries in which it operates.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
06 Jul 2011
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
Yes
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Germany: 3
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Country: Number of subjects enrolled |
United Kingdom: 1
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Country: Number of subjects enrolled |
Netherlands: 3
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Country: Number of subjects enrolled |
United States: 9
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Worldwide total number of subjects |
16
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EEA total number of subjects |
7
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
13
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From 65 to 84 years |
3
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85 years and over |
0
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Recruitment
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Recruitment details |
The study was conducted at 11 centres between July 06, 2011 and December 19, 2013. | ||||||||
Pre-assignment
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Screening details |
A total of 20 subjects were screened and 16 subjects were enrolled. | ||||||||
Period 1
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Period 1 title |
Overall Study (Overall Period)
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Is this the baseline period? |
Yes | ||||||||
Allocation method |
Not applicable
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Blinding used |
Not blinded | ||||||||
Arms
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Arm title
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Alglucosidase Alfa | ||||||||
Arm description |
Alglucosidase alfa every other week for 24 weeks. | ||||||||
Arm type |
Experimental | ||||||||
Investigational medicinal product name |
Alglucosidase Alfa
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Investigational medicinal product code |
GZ419829
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Other name |
Myozyme®, Lumizyme®
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Pharmaceutical forms |
Powder for concentrate for solution for infusion
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Routes of administration |
Intravenous use
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Dosage and administration details |
Alglucosidase alfa 20 mg/kg.
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Baseline characteristics reporting groups
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Reporting group title |
Alglucosidase Alfa
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Reporting group description |
Alglucosidase alfa every other week for 24 weeks. | |||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Alglucosidase Alfa
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Reporting group description |
Alglucosidase alfa every other week for 24 weeks. |
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End point title |
Change From Baseline in Tissue Glycogen Content in Quadriceps Muscle Biopsy Samples at Week 26 [1] | ||||||||||||
End point description |
Tissue glycogen content was measured by quadriceps biopsies as ‘percent area of tissue occupied by glycogen'. Analysis was carried out on full analysis set (FAS) population defined as all subjects who received at least one complete infusion of alglucosidase alfa. Here, n = number of subjects with both Baseline and Week 26 assessment of tissue glycogen content.
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End point type |
Primary
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End point timeframe |
Baseline, Week 26
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Notes [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point. Justification: Due to EudraCT format constraint, the statistical analysis could not be provided for single arm study. |
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No statistical analyses for this end point |
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End point title |
Glycogen Distribution | ||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Baseline, Week 26
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Notes [2] - No quantitative data could be reported for this outcome as the assessment was qualitative in nature. |
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No statistical analyses for this end point |
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End point title |
Muscle Fiber Morphology | ||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Baseline, Week 26
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Notes [3] - No quantitative data could be reported for this outcome as the assessment was qualitative in nature. |
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No statistical analyses for this end point |
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End point title |
Lysosomal Inclusions | ||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Baseline, Week 26
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Notes [4] - No quantitative data could be reported for this outcome as the assessment was qualitative in nature. |
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No statistical analyses for this end point |
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End point title |
Percent Change From Baseline in Muscle Involvement Using Mercuri Scoring at Week 26 | ||||||||||||
End point description |
Muscle involvement was assessed by T1-weighted magnetic resonance imaging (MRI). T1-weighted MRI data was analyzed using the Mercuri scoring in both legs (Total score = 1-4; where 1=Normal appearance, 2=Mild involvement, 3=Moderate involvement, and 4=Severe involvement). For each subjects, the average for each the upper (thigh) and lower leg was computed for Mercuri grading. Analysis was carried out on FAS population defined as all subjects who received at least one complete infusion of alglucosidase alfa. Here, Number of subjects analyzed= subjects with both Baseline and Week 26 assessment of muscle involvement, n= number of subjects with both Baseline and Week 26 assessment of muscle involvement for specified category.
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End point type |
Secondary
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End point timeframe |
Baseline, Week 26
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No statistical analyses for this end point |
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End point title |
Percent Change From Baseline in Degree of Fatty Infiltration Using 3-Point 3-Dimensional (3D) Dixon at Week 26 | ||||||||
End point description |
Degree of Fatty Infiltration was assessed by 3-point 3D Dixon acquisition using skeletal muscle MRI in a subset of subjects. Analysis was carried out on FAS population defined as all subjects who received at least one complete infusion of alglucosidase alfa. Here, number of subjects analyzed = number of subjects with both Baseline and Week 26 assessment of degree of fatty infiltration.
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End point type |
Secondary
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End point timeframe |
Baseline, Week 26
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No statistical analyses for this end point |
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End point title |
Percent Change From Baseline in Disease Activity Using T2 Magnetic Resonance Imaging (MRI) at Week 26 | ||||||||||||
End point description |
Disease activity (inflammation and/or water content within muscles) was quantitatively assessed by T2 MRI values in a subset of subjects. A T2 MRI value of greater than (>) 39 millisecond (ms) was defined as abnormal. T2 estimation normally requires an additional acquisition for computing the B1 spatial deviation however, can still be estimated if this acquisition is missing. Analysis was carried out on FAS population defined as all subjects who received at least one complete infusion of alglucosidase alfa. Here Number of subjects analyzed = number of subjects with both baseline and Week 26 assessment of disease activity.
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End point type |
Secondary
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End point timeframe |
Baseline, Week 26
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
From signature of the informed consent form up to the final visit (Week 26)
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Adverse event reporting additional description |
In the event a single subject has experienced both serious and non-serious form of the same adverse event (AE), individual has been included in numerator of both AE tables. Analysis was performed on the safety population: all subjects who received any amount of alglucosidase alfa. AEs are listed independent of relationship to treatment.
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Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
16.1
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Reporting groups
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Reporting group title |
Aglucosidase Alfa
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Reporting group description |
Alglucosidase alfa intravenous infusion 20 milligram per kilogram (mg/kg) every other week for 24 weeks. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 0% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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26 Oct 2010 |
- Six-minute Walk Test added to Study
- Post-treatment assessment visit added after Week 24
- Screening and baseline visit take place on separate days
- Metabolism and proteomics data to be reported separately from CSR
- Hand-held dynamometry changed from break technique to make technique |
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11 Mar 2011 |
- Removed 65 year-old limit for inclusion in Study
- Removed testing for cardiac hypertrophy
- Contraception requirement added
- Multiple techniques for muscle biopsy allowed
- Allow dose modification in case of AE |
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30 Mar 2012 |
Added electrical impedance myography (EIM) as an additional exploratory assessment at Screening/Baseline and Visits 6, 9, 12, and 15 at a selected subset of sites. |
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |