View clinical trials related to Mucopolysaccharidosis IV.
Filter by:Establishment of human cellular disease models for Morquio disease for an individualized therapy development having the capacity to address both hepatic and neurologic forms of the disease
Early Check provides voluntary screening of newborns for a selected panel of conditions. The study has three main objectives: 1) develop and implement an approach to identify affected infants, 2) address the impact on infants and families who screen positive, and 3) evaluate the Early Check program. The Early Check screening will lead to earlier identification of newborns with rare health conditions in addition to providing important data on the implementation of this model program. Early diagnosis may result in health and development benefits for the newborns. Infants who have newborn screening in North Carolina will be eligible to participate, equating to over 120,000 eligible infants a year. Over 95% of participants are expected to screen negative. Newborns who screen positive and their parents are invited to additional research activities and services. Parents can enroll eligible newborns on the Early Check electronic Research Portal. Screening tests are conducted on residual blood from existing newborn screening dried blood spots. Confirmatory testing is provided free-of-charge for infants who screen positive, and carrier testing is provided to mothers of infants with fragile X. Affected newborns have a physical and developmental evaluation. Their parents have genetic counseling and are invited to participate in surveys and interviews. Ongoing evaluation of the program includes additional parent interviews.
Mucopolysaccharidoses (MPS) are multisystemic diseases with significant clinical overlap between their types, with cardiac problems being among the most commonly observed manifestations and are also among the main causes of mortality in these patients. For some of the cardiovascular manifestations, such as aortic root dilation and valve diseases, there is no effective treatment currently available. Losartan, on the other hand, has been shown to be an effective drug for dilation of the aortic root, at least in animal models. This study aims to evaluate the safety and efficacy of losartan in patients with MPS VI and other mucopolysaccharidoses.
The purpose of this study is to understand the course of rare genetic disorders that affect the brain. This data is being analyzed to gain a better understanding of the progression of the rare neurodegenerative disorders and the effects of interventions.
Mucopolysaccharidosis IVA (MPS IVA) (or Morquio A disease) is a rare recessive autosomal lysosomal storage disorder caused by deficiency of N-acetylgalactosamine-6-sulfatase (GALNS) resulting in accumulation of the glycosaminoglycans (GAGs) chondroitin-6-sulfate and keratin sulfate (KS). Patients display progressive development of skeletal and joint abnormalities and non-skeletal features including respiratory, cardiac, sensorial and neurological complications. Recently, a specific treatment using enzyme replacement therapy (ERT) with recombinant human GALNS (elosulfase alfa) has become available. A multicenter double-blind placebo-controlled phase 3 trial (176 patients, age > 5 yrs) showed significant improvement in endurance of 22.5 m in 6 Minute Walking Test (6MWT) distance after 24 weeks of treatment with elosulfase alfa at 2.0 mg/kg/week as compared with placebo group. In addition to ERT, a multidisciplinary management approach is necessary for coordinating assessment and follow-up as well as for providing individualized supportive and symptomatic care. The clinical presentation is highly variable from one patient to another regarding age at onset, severity, progression rate and life expectancy. Most patients are affected with the classical phenotype characterized by short trunk dwarfism with short neck and adult height < 1 m. Atypical phenotypes with less severe extension of skeletal manifestations, adult height > 1m, and less frequent complications in other organs have been progressively recognized. Clinical management differs depending on the clinical presentation of the patients but natural history of the disease is largely unknown in atypical phenotypes. Precise and exhaustive follow-up data are needed in such patients to increase our knowledge of this natural history and to define the best criteria to evaluate ERT efficiency. The investigators propose a prospective clinical study focused on a unique large series of 9 adult patients (aged from 18 to 55 years) followed in a single expert center for metabolic disorders located at the university hospital of Bordeaux, France. Eight of these patients are affected with atypical MPS IVA characterized by less severe evolution of the disease and heights ranging from 135 to 176 cm (the last patient height is 102 cm). Investigators aim to increase knowledge on the natural history of the disease in adult patients with atypical MPS IVA, treated or not with ERT, and to develop new objective and robust clinical criteria to evaluate the efficiency of ERT over time, particularly in patients presenting an atypical phenotype. The entire cohort treated or not treated with ERT, will be evaluated at baseline and every year during a 5-years period. The complete evaluation at baseline will be our absolute priority as well as obtaining long-term and exhaustive follow up of the patients treated with ERT (two patients of the cohort already treated, and ERT expected in three additional patients in the next months). The investigators designed a schedule of systematic and exhaustive assessments based on the recommended follow up from experts panel consensus meeting (MorCAP protocol) extended to some additional investigations including motor, cardiac and rheumatologic exams as our specific focus.
The present study seeks to interview women with Morquio A and Morquio B syndrome, to explore their concerns surrounding pregnancy and the impact of ERT on their perspectives, in comparison with the control group of Morquio B subjects for whom no ERT treatment exists. Interviews will be conducted by a health psychologist, in-person or over the telephone. Data will be analyzed using MAXQDA 12.0 software and Grounded Theory. Differences in thematic trends between Morquio A subjects, for whom treatment exists, and a control group of Morquio B subjects, for whom there is no treatment, will be compared.
The objectives of this program are: to characterize and describe the Mucopolysaccharidosis IV type A (MPS IVA) population as a whole, including the heterogeneity, progression, and natural history of MPS IVA; to evaluate the long-term effectiveness and safety of Vimizim®, including, but not limited to, the occurrence of serious hypersensitivity reactions, anaphylaxis, and changes in antibody status; to help the medical community with the development of recommendations for monitoring MPS IVA patients and reports on patient outcomes to optimize patient care; to collect data on other treatment paradigms, and evaluate the prevalences of their use and their effectiveness; to characterize the effects and safety of Vimizim treatment 5 years from enrollment in the Registry for patients under 5 years of age; to monitor pregnancy exposure, including maternal, neonatal, and infant outcomes; and to monitor patients who have completed the MOR-005 and MOR-007 clinical trials. These patients will be encouraged to enroll in the applicable Registry Substudy and will be monitored using the MOR-005 and MOR-007 assessment schedules, respectively.
Mucopolysaccharidosis IV, also known as MPS IV or Morquio disease, is a rare autosomal recessive genetic lysosomal storage disorder. Research thus far regarding Morquio, has primarily focused on the physical aspects of the various diseases. Less attention has been paid to the psychological toll of these diseases, whether they are direct symptoms or reactions to living with a chronic progressive disease. Prior to 2013, there was neither a cure nor treatment (other than palliative) for Morquio disease. In the latter half of 2013, ERT became available to the broader population of patients with Morquio A disease through BioMarin's Expanded Access Program. In a previous study, entitled "Psychological Concomitants of Morquio syndrome" the present investigator enrolled 20 adult subjects with Morquio into a pilot study to estimate a baseline incidence of psychological symptoms and overall quality of life. Subjects were all over the age of 18. Data from this study were published in 2015. The present study extends this research into psychological health with Morquio via a comparison of psychological issues and quality of life before and after treatment (i.e. ERT). As ERT does not cross the blood-brain barrier, it would be unlikely to improve organic psychological symptoms, but may improve any reactive psychological symptoms caused by living over time with this chronic progressive genetic disease. The present study thus seeks to follow adult patients with Morquio A disease as they begin ERT and track their psychological health every 6 months for a duration of 2 years. Adult patients with Morquio disease are invited to participate. Subjects will complete three different self-report questionnaires, the Achenbach System of Empirically Based Assessment (ASEBA) Adult Self-Report (ASR), the Short Form 36-item Health Questionnaire (SF-36), and the Brief Pain Inventory (BPI). Group aggregate data will be reported; individual questionnaire content and results will be held confidential, except as in accordance with Georgia law relating to reporting of child or elder abuse, suicidal and/or homicidal intent.
Mucopolysaccharidosis Type IVa (MPS IVa, Morquio Disease) is a rare inherited lysosomal storage disorder caused by deficiency of the enzyme galactose-6-sulfatase. Children with this disease accumulate a chemical called keratan sulphate, which stops their skeletons developing properly. They are very short in stature and many of their joints are unstable. Children with MPS IVa walk in a different way to other people due to a combination of lax ligaments and skeletal problems such as knock-knees. Human walking involves the coordinated movements of all four limbs. As we walk, the arms swing oppositely to the legs. This movement pattern is very different in children with MPS IVa. This change seems to involve the whole musculoskeletal system and depends on the severity of the disease. Recent studies in children with MPS IVa describing walking pattern have concentrated solely on the lower or upper limb respectively, and have not looked at the interaction of the upper and lower limbs during walking. To our knowledge, the mechanics of walking in children with MPS IVa has not been investigated using a dynamic gait analysis tool (using cameras, sensors and electrodes to track the movements of different parts of the body during walking) and we aim to characterise this in a small number of children with MPS IVa and also examine the effects of splinting the wrist upon the walking pattern to see if this simple intervention makes it easier or more difficult for children with MPS IVa to walk.
The purpose of this study is to identify patients with Morquio syndrome type A (MPS IVA) and Maroteaux-Lamy syndrome (MPS VI) who may have been missed or misdiagnosed due to atypical clinical features, a milder course, and/or negative urine screening. We will recruit participants who have certain hip and/or joint problems that could potentially be caused by one of these two genetic conditions through a chart review process conducted at Shriners Hospital for Children in Greenville, SC. Diagnostic testing will be performed for each participant to determine if he or she is affected by one of these two conditions. Results will be disclosed to all participants and their legal guardians, and appropriate follow up will be recommended for those who are found to have abnormal results.