About this trial
This is a Phase 3, multicenter, open-label, single-arm study to evaluate the safety, efficacy, PK, PD, and immunogenicity of velaglucerase beta in untreated children with GD1 or GD3 for 39 weeks.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Subject has a documented diagnosis of GD1 or GD3 according to the diagnostic criteria of the Expert Consensus on the Diagnosis and Treatment of Gaucher Disease in Chinese Children 2021;
Written informed consent provided by the subject's parent/legally authorized representative;
Subject is less than 12 years of age;
GD-related anemia, with a decrease of ≥1 g/dL in hemoglobin concentration below the lower limit of normal for age of the central laboratory; or
Disqualifiers
Treatment with investigational drugs (including ambroxol) within 30 days or 5 half-lives, whichever is longer, prior to screening;
Subjects have received erythropoietin, whole blood transfusion or transfusion of red blood cells, or long-term (continuous treatment for more than 3 months) systemic corticosteroids 3 months prior to screening; or received a platelet transfusion within 1 month prior to screening;
Subject has non-Gaucher disease-related anemia (such as due to iron, folic acid, and/or vitamin B12 deficiency or infection/immune-mediated reasons);
Subject has had a prior hepatectomy and/or splenectomy (including partial liver and/or splenectomy) or plans to have a hepatectomy and/or splenectomy (including partial liver and/or splenectomy) during the study;
Trial design
Single group
Treatments tested in this trial
Velaglucerase beta
DrugAll subjects will receive velaglucerase beta 60 U/kg IV Q2W for 37 weeks with two weeks of follow-up through Week 39 (9 months).
Treatment groups
Trial outcomes
Primary outcomes
Primary Endpoints
Incidence and number of TEAE, characterized by type, severity, seriousness (SAE), and relatedness to velaglucerase
Mean percent change in MN spleen volume
Normal spleen volume = 0.2% body weight. Multiples of normal (MN) spleen volume= actual MRI testing volume / normal spleen volume
Secondary outcomes
Mean change in hemoglobin concentration (g/dL)
Mean percent change in MN liver volume
Normal liver volume = 2.5% body weight. Multiples of normal (MN) liver volume= actual MRI testing volume / normal liver volume
Mean percent change in platelet count ( 10^9/L)
Mean change in height Z-score
Sponsors and contacts
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