An Exploratory Study of the Safety and Efficacy of Prophylactic Immunomodulatory Treatment in Myozyme-naive Cross-Reacting Immunologic Material (CRIM[-]) Patients With Infantile-Onset Pompe Disease
Summary
The purpose of this study was to evaluate the efficacy, clinical benefits and safety of a prophylactic immunomodulatory regimen given prior to first treatment with alglucosidase alfa (Myozyme®) in patients with infantile-onset Pompe disease. The objectives were to assess the efficacy of a prophylactic immunomodulatory regimen given prior to first treatment with alglucosidase alfa, as assessed by anti-recombinant human acid alpha-glucosidase (anti-rhGAA) antibody titers, and antibodies that inhibit the activity and/or uptake of alglucosidase alfa; to evaluate the clinical benefit as measured by overall survival, ventilator-free survival, left ventricular mass index (LVMI), gross motor function and development, disability index and the incidence of adverse events (AEs), serious adverse events (SAEs), and clinical laboratory abnormalities.
Timeline
- Start
- 2009-10
- Primary completion
- 2013-03
- Completion
- 2013-03
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Methotrexate | Small molecule | 0.4 mg/kg | Subcutaneous |
| Subject | Rituximab | Monoclonal antibody | 12.5 mg/kg | Intravenous |
| Subject | Rituximab | Monoclonal antibody | 375 mg/m2 | Intravenous |
| Subject | alglucosidase alfa | Protein / enzyme biologic | 20 mg/kg | Intravenous |