View clinical trials related to Cystinosis.
Filter by:Most of the real world evidence data related to efficacy of cysteamine therapy is retrospective. This study is a ambispective study to investigate the impact of cystine depletion therapy on the quality of life of patients and their parents.
Cystadrops® is currently indicated in adults and children from 2 years of age diagnosed with cystinosis with corneal crystal accumulation observed. However administration of Cystadrops® in patients below 2 years old could be of value for these patients and prevent the crystal deposit. It is the reason why as part of the Cystadrops® pediatric investigational plan (PIP), RECORDATI Rare Diseases committed to conduct a clinical study to assess Cystadrops® safety and efficacy in the pediatric population from 6 months to less than 2 years old.
Classification of activity tolerance is of importance in chronic progressive myopathies, not only to better understand functional implications of the disease state itself, but also for purposes of exercise prescription for health maintenance. Maximal exercise testing has been considered as the gold standard of assessing maximal aerobic capacity, however testing in individuals with neuromuscular disease is often limited due to pain, activity intolerance, musculoskeletal impairments, fatigue and other such related variables. Often, submaximal exercise testing can overcome some of these obstacles, and as such, is used frequently in the clinical environment. Non-ambulatory exercise testing utilizing an arm ergometer specifically has not been studied as heavily, especially in those with progressive myopathies. For this study, we will use maximal aerobic capacity testing for individuals with Cystinosis Myopathy utilizing a bike ergometer to allow testing of individuals regardless of their ambulatory status.
This is a Phase 2 open label study to evaluate the safety, tolerability, PK, and PD of multiple dose levels of SC administered ELX-02 in patients with cystinosis with nonsense mutation in at least one allele. Six patients will be enrolled in the trial. The study will comprise of the following periods for each patient: - A screening period of up to 6 weeks - A total treatment period of 4 weeks - A safety follow-up period of 4 weeks after the last treatment Each patient will receive three escalating doses as follows: - Treatment period 1: ELX-02 0.5 mg/kg SC daily for 7 days (total dose not to exceed 3.5 mg/kg for this week; the daily dose will be individualized to achieve the target weekly exposure of about 47.5 µg*h/mL) - Treatment period 2: ELX-02 1.0 mg/kg SC daily for 7 days (total dose not to exceed 7.0 mg/kg for this week; the daily dose will be individualized to achieve the target weekly exposure of about 95 µg*h/mL) - Treatment period 3: ELX-02 2.0 mg/kg SC daily for 14 days (total dose not to exceed 14 mg/kg for these two weeks; the daily dose will be individualized to achieve the target weekly exposure of about 190 µg*h/mL)
Nephropathic Cystinosis (NC) is an orphan inherited autosomal recessive disease characterised as a generalized lysosomal storage disease due to a deficiency of the cystine lysosomal transport protein, cystinosin. Patients with NC usually receive cysteamine. Bone impairment was recently recognized as a late complication of NC, occurring at adolescence or early adulthood. Even though the exact underlying pathophysiology is unclear, at least six hypotheses are discussed, and mainly cysteamine toxicity and/or direct bone effect of the Cystinosin (CTNS) mutation. Because of the potential dramatic impact on quality of life of this novel complication, research should aim to better understand bone disease in NC. The primary objective of this study is to evaluate the action of cysteamine on osteoclastic differentiation and resorption activity of NC patients, depending on the underlying genotype. The Secondary objective is to describe the clinical bone status of NC patients depending on their underlying genotype.
This study is a Phase 1/2 clinical trial that will assess the safety and efficacy of enriched gene-corrected hematopoietic stem cells isolated from patients affected with cystinosis. (Investigational Product: CTNS-RD-04 or CTNS-RD-04-LB, where the suffix "-LB" stands for LentiBOOST)
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.
Development of a new mass spectrometry-based biomarker for the early and sensitive diagnosis of Cystinosis disease from the blood
Cystinosis is a rare autosomal recessive disorder, characterized by the abnormal accumulation of cystine in the lysosomes. Cystinosis is mostly caused by mutations in the cystinosin gene (CTNS). The major mutation, which is present in almost 50% of the cystinosis patients, is a 57-kb deletion. This deletion removes the first 9 exons and a part of exon 10 of the CTNS gene. Exon 10 of the CTNS gene is a upstream 5' region that encodes for the CARKL gene and also for the first two noncoding exons of the transient receptor potential channel, vanilloid subfamily member 1 (TRPV1) gene. TRPV1 belongs to the transient receptor potential (TRP) superfamily of cation channels. TRPV1 is primarily expressed in sensory nerves and is activated by heating (>43°C) and a wide range of chemical stimuli. One of these chemical stimuli is capsaicin, the pungent ingredient in hot chilli peppers. The effect of binding of the exogenous ligand capsaicin with the TRPV1 receptor is well known to provoke the release of a number of bioactive substances including calcitonin gene-related peptide (CGRP). These substances, in turn, act on target cells in the surrounding tissue such as mast cells, immune cells and vascular smooth muscle cells. The resulting response is characterized by redness and warmth (secondary to vasodilatation), swelling (secondary to plasma extravasation) and allodynia (i.e. hypersensitivity to heat and touch secondary to alterations in the excitability of primary sensory neurons). The present study wants to test the following hypotheses: (i) The DBF response to topical applied capsaicin is decreased in cystinosis patients, compared to matched control subjects. (ii) The skin sensitivity response after topical applied capsaicin is decreased in cystinosis patients, compared to matched control subjects. (iii) The temperature sensitivity is decreased in cystinosis patients, compared to matched control subjects.
Background: -(Degree)ystinosis is an inherited disease. If not treated correctly, it can cause muscle wasting and weakness and kidney damage. Researchers want to learn if growth hormone (GH) can help people with cystinosis. Objective: - To learn if GH treatment can slow or reverse muscle wasting and improve muscle strength in people with cystinosis. Eligibility: - People 18 and older who are already enrolled in protocol 78-HG-0093. Design: - Participants will be admitted to the clinic for eight 3 4 day visits, mostly four months apart. - At each visit, participants will have a history and physical exam and give urine and blood samples. - At month 0 or 13, participants will take tests that will be repeated at their 12- or 25-month visit: - They will have an eye exam, medical consultations, and strength and movement tests. - They will complete questionnaires. - They may have tests of heart activity and lung function. - They will have ultrasound imaging of their arm and hand muscles. They will have a scan of their legs while lying in a magnetic resonance imaging machine (a big metal cylinder). They will have a DEXA bone scan (two X-ray beams measure body composition). They will also swallow barium while X-ray imaging records the throat muscles. - Participants will be randomly assigned to either receive or not receive GH for the first 12 months. Then, at month 13, if they received GH, they will switch for the next 12 months. - Participants will take GH as a daily injection. They will be taught how to give the injections.