Gaucher Disease Type 1

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.

This study is a Phase 3, non-randomized, multicenter, efficacy and safety study in adult patients with Gaucher disease Type 1, on stable treatment with enzyme replacement therapy (ERT) or substrate reduction therapy (SRT) for at least 2 years. The study aims to confirm the efficacy and safety of FLT201 in this population after discontinuation of ERT/SRT.

Objective of the trial. To define a sub-population which is at increased risk of developing Parkinson, beyond the fact of carrying Gaucher; in this sub-population the investigators shall conduct a comprehensive evaluation that includes a variety of non-invasive tests, whose purpose is to evaluate the state of the pre- Parkinson's disease signs, signs which can appear, even twenty years before the appearance of the disease, and also to compare them to a group of diagnosed Gaucher patients and a group of healthy people who are not carriers of Gaucher disease. A group of those carriers will be available for trial or for treatment, if there will be a medicine for the prevention of the development of Parkinson, obtainable.

Gaucher disease (GD) is caused by mutations in the GBA1 gene, which leads to a lack or reduction of GCase activity. The consequences of this deficiency are generally attributed to the accumulation of the GCase substrate, Glucosylceramide (GlcCer), in macrophages in the liver, spleen, kidney, bone, lung, and even the brain, inducing their transformation into Gaucher cells whose cell cytoplasm presenting a characteristic "crumpled tissue paper" appearance, leading to pathological changes in involved tissues and organs.LY-M001 Injection is an rAAV8 vector gene therapy product. It can specifically transduce the target organ liver after a single intravenous administration and express the GCase protein in liver cells for a long period of time.