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AGT-181 is a fusion protein containing alpha-L-Iduronidase that is intended to deliver the enzyme peripherally and to the brain, when administered intravenously. This study is an extension of a safety and dose ranging study to obtain long term safety and exposure data, as well as information on the biological activity of the investigational drug
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| AGT-181 | Experimental | AGT-181 (fusion protein of anti-human insulin receptor monoclonal antibody and alpha-L-iduronidase) administered once weekly x 26 weeks at same dose level as subject received in core study |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| AGT-181 | Drug | intravenous infusion over 3-4 hours |
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| Measure | Description | Time Frame |
|---|---|---|
| Number of participants with adverse events as a measure of safety and tolerability | 104 weeks (2 years) |
| Measure | Description | Time Frame |
|---|---|---|
| changes in urinary or plasma glycosaminoglycans (GAGs) | 104 weeks (2 years) | |
| change in liver size | 104 weeks (2 years) | |
| change in spleen size |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Patrice Rioux, MD PhD | ArmaGen, Inc | Study Director |
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| ID | Term |
|---|---|
| D008059 | Mucopolysaccharidosis I |
| ID | Term |
|---|---|
| D009083 | Mucopolysaccharidoses |
| D002239 | Carbohydrate Metabolism, Inborn Errors |
| D008661 | Metabolism, Inborn Errors |
| D030342 | Genetic Diseases, Inborn |
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| ID | Term |
|---|---|
| C546866 | valanafusp alpha |
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Open Label
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| 104 weeks (2 years) |
| change in levels of heparan sulfate and dermatan sulfate in the cerebrospinal fluid | 104 weeks (2 years) |
| D009358 | Congenital, Hereditary, and Neonatal Diseases and Abnormalities |
| D016464 | Lysosomal Storage Diseases |
| D017520 | Mucinoses |
| D003240 | Connective Tissue Diseases |
| D017437 | Skin and Connective Tissue Diseases |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |