Status:
ACTIVE_NOT_RECRUITING
A Prospective Study to Observe & Describe Clinical Outcomes of Alglucosidase Alfa Treatment in Patients ≤6 Months of Age With Infantile-onset Pompe Disease (IOPD)
Lead Sponsor:
Sanofi
Conditions:
Glycogen Storage Disease Type II
Eligibility:
All Genders
Up to 6 years
Brief Summary
Primary Objective: To describe the effect of routine practice with alglucosidase alfa in patients with IOPD ≤6 months of age, on invasive ventilation-free survival after 52 weeks of treatment. Secon...
Detailed Description
The planned duration of observation for each participant will be 104 weeks after enrollment, to determine secondary outcomes at 18 months (approximately 78 weeks) of age.
Eligibility Criteria
Inclusion
- At the time of informed consent, participants must be ≤6 months of age, corrected for gestation if necessary. Gestational age \<40 weeks will be adjusted to a full-term gestational age of 40 weeks.
- Participants must have alglucosidase alfa enzyme replacement therapy (ERT) planned or initiated for IOPD treatment irrespective of study participation, according to the treating physician's decision regarding participants' routine disease management.
- Participants must have available and accessible medical records from the time of IOPD diagnosis and from subsequent follow-up.
- Participants must have a confirmed diagnosis of IOPD, defined as presence of 2 pathogenic acid alpha glucosidase (GAA) variants and documented GAA deficiency in blood (dried blood spot \[DBS\] accepted), skin, or muscle tissue, or presence of 1 pathogenic GAA variant and documented GAA deficiency in blood, skin, or muscle tissue from separate samples (either from 2 different tissues or from the same tissue but at 2 different sampling dates.) (DBS and leukocytes are acceptable as 2 different samples from blood).
- Participants must have established cross-reacting immunologic material (CRIM) status available prior to enrollment. CRIM status may be provided by historical CRIM testing results or prediction of CRIM status based on genotyping performed at a Clinical Laboratory Improvement Amendments (CLIA) or other appropriately certified genetic laboratory.
- Participants must have cardiomyopathy at the time of diagnosis (LVMI equivalent to mean age-specific LVMI):
- LVMI +1 standard deviation (SD) in participants diagnosed by newborn or sibling screening,
- LVMI +2 SD in participants diagnosed by clinical evaluation.
- Participants must have informed consent provided by parent(s)/legally acceptable representatives (LARs).
Exclusion
- Participants with respiratory insufficiency, defined as:
- Oxygen saturation \<90% on room air as determined by pulse oximetry,
- Venous partial pressure of carbon dioxide (pCO2) \>55 mmHg or arterial pCO2 \>40 mmHg on room air,
- Use of invasive (with intubation or tracheostomy) or noninvasive (no intubation or tracheostomy) ventilation at enrollment, for participants not having started ERT at enrollment,
- Use of invasive or noninvasive ventilation at the time of ERT initiation, for participants having started ERT before enrollment.
- Participants with major congenital abnormality including heart defect, neural tube defect, or Down syndrome that, in the opinion of the investigator, would preclude participation in the study or potentially decrease survival.
- Participants with clinically significant organic disease other than signs/symptoms related to Pompe disease, including clinically significant cardiovascular, hepatic, pulmonary, neurologic, or renal disease, or other medical condition, serious intercurrent illness, or circumstance that, in the opinion of the investigator, would preclude participation or potentially decrease survival.
- Previous or ongoing treatment in any clinical trial of, or managed access program for, avalglucosidase alfa or any other Pompe disease-specific therapy.
- The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.
Key Trial Info
Start Date :
June 10 2021
Trial Type :
OBSERVATIONAL
Allocation :
ESTIMATED
End Date :
October 28 2026
Estimated Enrollment :
16 Patients enrolled
Trial Details
Trial ID
NCT04848779
Start Date
June 10 2021
End Date
October 28 2026
Last Update
May 13 2025
Active Locations (15)
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1
Advanced Medical Genetics- Site Number : 8400002
Hawthorne, New York, United States, 10532
2
Duke University Medical Center- Site Number : 8400004
Durham, North Carolina, United States, 27710
3
Cincinnati Children's Hospital Medical Center- Site Number : 8400001
Cincinnati, Ohio, United States, 45229
4
Le Bonheur Children's Hospital- Site Number : 8400005
Memphis, Tennessee, United States, 38103