View clinical trials related to Mucopolysaccharidoses.
Filter by:The main aim of this study is to evaluate the ability of a prophylactic immune tolerizing regimen (ITR) to prevent or reduce the development of high titer anti-idursulfase antibodies in treatment-naïve participants with Hunter syndrome. In this open label, single arm study, all participants will receive ELAPRASE treatment and a prophylactic ITR. Participants will be treated with ELAPRASE for up to 104 weeks. The prophylactic ITR will start 1 day prior to the start of ELAPRASE. The prophylactic ITR will consist of a 5-week cycle of: Rituximab (intravenously [IV], weekly for 4 weeks); Methotrexate (oral, 3 times per week for 5 weeks) and intravenous immunoglobulin (IVIG) (IV, every 4 weeks of the cycle). Following the completion of 1 cycle, an assessment will be made at Month 6, 12, and 18 regarding the need for administering another 5-week cycle of the ITR. Participants will be in the study for approximately 112 weeks (including 6 weeks for screening, up to 104 weeks for treatment, and 2 weeks for follow-up).
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of intracerebroventricular GC1123 in patients with MPS Ⅱ who have central nervous system involvement and are receiving treatment with intravenous drug
This is a Phase 2/3, multiregional, two-arm, double-blind, randomized, active (standard-of-care)-controlled study of the efficacy and safety of tividenofusp alfa (DNL310), an investigational central nervous system (CNS)-penetrant enzyme-replacement therapy (ERT) for mucopolysaccharidosis type II (MPS II). Participants may also qualify to enter an open-label treatment phase with DNL310 or idursulfase based on pre-specified criteria.
To assess the reliablity and validity of 2 new iris cameras in the assement of corneal opacification in mucopolysaccharidoses
Morquio A disease is a devastating systemic skeletal disease in which detailed progression and pathogenesis remain unknown. The proposed project aims to establish a non-invasive objective assessment that can be applicable to all ages of patients to better understand the progress of their disease and the most serious clinical problems (cervical instability and stenosis, tracheal obstruction, hyperlaxity of joints, hip dysplasia, and small lung capacity). The outcome of this project will lead to a more precise understanding of the skeletal/pulmonary compromise and defining clinical endpoints in this disease for future clinical trials of current or developing therapies.
This is phase 2/3 study to evaluate the safety, pharmacokinetics, pharmacodynamics, and efficacy of the investigational product GNR-055 in MPS II (Hunter syndrome) patients of different age groups.
This study's investigators previously demonstrated the potential utility of non-invasive carotid ultrasonography to calculate carotid intima media thickness (cIMT) and stiffness (as measured by the three parameters, carotid cross-sectional distensibility [cCSD], carotid cross-sectional compliance [cCSC], and carotid incremental elastic modulus [cIEM]) in people with mucopolysaccharidoses (MPS). Investigators also studied arterial gene expression in animal models of MPS, and identified upregulation of a number of markers potentially tied to atherosclerosis and inflammation. These include the atherosclerotic marker known as Clusterin (CLU), Cathepsin S, Elastin, and the inflammatory cytokines interleukin 1-α, interleukin 1-β, interleukin 2, and interleukin 6. Other studies have identified elevation in circulating tumor necrosis factor-α correlating with pain and physical disability in certain mucopolysaccharidoses. Since these studies are cross sectional, and not longitudinal, this study aims to annually measure these previously studied biomarkers (carotid measurements, circulating cytokines, cathepsin S, elastin, and CLU) in a large cohort of MPS patients. This study is a 3-year, prospective, anonymized, longitudinal assessment of cardiovascular structure, function, and circulating biomarkers in patients with mucopolysaccharidoses.
The main aim of this study is to learn more about the safety profile of Elaprase in Indian children and adults with hunter syndrome. Participants will receive Elaprase once per week over a 3-hour period which can be reduced to 1 hour as determined by the study doctor. Participants will need to visit the clinic weekly during the duration of the study.
The purpose of this study is to investigate how participant's body's immune system responds to idursulfase, an enzyme replacement therapy (ERT) and find out which types of immune cells are involved in causing untoward responses to the ERT so that the investigators can relate the level of immune response to the treatment.
Mucopolysaccharidosis (MPSs) are a group of disorders caused by inherited defects in lysosomal enzymes resulting in widespread intra- and extra-cellular accumulation of glycosaminoglycan(1,2). They have been subdivided according to enzyme defect and systemic manifestations and include MPS IH (Hurler)(3) , MPS IS (Scheie), MPS IH/S (Hurler/Sheie), MPS II(4,5) (Hunter), MPS III (Sanfilippo)(6) , MPS IV (Morquio)(7,8), MPS VI (Maroteaux-Lamy)(9), MPS VII (Sly)(10,11) and MPS IX (Natowicz)(12). Mucopolysaccharidosis have a spectrum of systemic manifestations, including airway and respiratory compromise, skeletal deformities, intellectual and neurological impairment, cardiac abnormalities, gastrointestinal problems and ocular manifestations(13). Ocular manifestation are common in the mucopolysaccharidosis and may result in significant visual impairment(14). Corneal opacification of varying severity is frequently seen, as well as retinopathy, optic nerve swelling and atrophy, ocular hypertension, and glaucoma(14). New treatment modalities for the systemic manifestations of the mucopolysaccharidosis include bone marrow transplant and enzyme replacement therapy have resulted in an improved prognosis in many cases(15).