Rate of Progression of PCDH15-Related Retinal Degeneration in Usher Syndrome 1F
Retinal DegenerationRetinitis Pigmentosa2 moreThe overall goal of this project, co-funded by the Foundation Fighting Blindness and the USHER 1F Collaborative is to characterize the natural history of disease progression in patients with PCDH15 mutations in order to accelerate the development of outcome measures for clinical trials.
Study to Evaluate the Efficacy Safety and Tolerability of QR-421a in Subjects With RP Due to Mutations...
Retinitis PigmentosaUsher Syndrome Type 27 moreThe purpose of this study is to evaluate the efficacy safety and tolerability of QR-421a administered via intravitreal injection (IVT) in subjects with Retinitis Pigmentosa (RP) due to mutations in exon 13 of the USH2A gene with early to moderate vision loss.
Pharmacological Treatment of a Rare Genetic Disease: N-acetylcysteine in Myopathy Associated Selenoprotein...
Selenoprotein N-related MyopathyThe objective of this study is to determine whether the administration of N-acetylcysteine (NAC) improves oxidative stress. To determine this, the study will assess the impact of oral treatment on the balance between reduced and oxidized form of glutathione in erythrocytes of peripheral blood.
Safety, Tolerability, Pharmacokinetics of ELX-02 in Healthy Adult Volunteers
Genetic DiseasesNonsense MutationsThis is the first study in humans of ELX-02, an advanced synthetic aminoglycoside optimized as a translational read-through drug (TRID) for the treatment of genetic conditions caused by nonsense. mutations. This is a classical Phase 1a study designed as a randomized, double-blinded, placebo-controlled, single dose escalation to evaluate the safety, tolerability and pharmacokinetics of ELX-02 in healthy adult volunteers.
An Extension Study of Ataluren (PTC124) in Participants With Nonsense Mutation Dystrophinopathy...
Muscular DystrophyDuchenne11 moreThe primary objective of this study is to obtain long term safety data of ataluren in male participants with nonsense mutation dystrophinopathy (who participated and completed a previous Phase 3 study of ataluren [PTC124-GD-020-DMD {NCT01826487}]) to augment the overall safety database. Screening and baseline procedures are structured to avoid a gap in treatment between the double-blind study (PTC124-GD-020-DMD) and this extension study. This study may be further extended by amendment until either ataluren becomes commercially available or the clinical development of ataluren in duchenne muscular dystrophy (DMD) is discontinued.
Extension Study to Study PQ-110-001 (NCT03140969)
Leber Congenital Amaurosis 10Blindness9 moreSubjects completing participation in study PQ-110-001 (EudraCT 2017-000813-22 / NCT03140969) will be given the opportunity to enroll into the extension study for continued dosing if available data support current and/or future benefits for the subject. Study PQ-110-002 will provide long-term safety, tolerability, pharmacokinetic (PK), and efficacy data of QR-110.
A Phase 2 Study of ELX-02 in Patients With Nephropathic Cystinosis
Genetic DiseaseNonsense Mutation1 moreThis 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)
Pharmacokinetics of Thymoglobulin in Paediatric Haematopoietic Stem-cell Transplants
MalignancyMetabolic Disease1 moreThis study will describe the pharmacokinetic disposition of biologically active rabbit anti-thymocyte globulin (rATG) after a consistent dose of 7.5 mg/kg/course given as part of the conditioning regimen in children undergoing hematopoeitic stem cell transplantation (HSCT).
Skeletal Muscle Biomarkers in People With Fragile Sarcolemmal Muscular Dystrophy
Genetic DisorderBackground: - Some kinds of muscular dystrophy affect the skeletal muscle membrane. In these conditions, the muscle membrane is more fragile. This affects how the muscles contract and relax, which causes movement problems. Researchers are looking at several muscle enzymes, or chemicals that affect how muscle cells function. By studying changes in these enzymes, they may be able to better understand how muscular dystrophy affects the cells. Researchers want to collect biomarkers (chemicals from blood samples) from people with fragile sarcolemmal muscular dystrophy. This information may provide better treatments for this condition. Objectives: - To study biomarkers that may affect the muscles of people with fragile sarcolemmal muscular dystrophy. Eligibility: - Individuals at least 18 years of age with fragile sarcolemmal muscular dystrophy. Design: Participants will be screened with a medical history and physical exam. Participants will be asked to come for four visits to the National Institutes of Health Clinical Center. The visits will be at least 2 months apart. Each visit will require participants to stay for 5 days at the clinical center. During each visit, participants will provide frequent small blood samples. These samples will be collected while at rest and after physical exercise. Participants will also have a physical therapy assessment. They will perform standard motor function tests and imaging tests (MRI, MRS). These tests may take up to 1 hour each time. Treatment will not be provided as part of this study.
Contribution of Oncogenetics in Breast Cancer in Reunion Epidemiology of Breast Cancer in Reunion:...
Breast CancerGenetic Disease1 moreIn mainland France, breast cancer is the most common cancer in women, with an estimated incidence of over 58,000 new cases. Even if breast cancer is a cancer with a good prognosis, it is responsible for more than 12,000 deaths per year (first cause of death by cancer in women in France). Breast cancer is a multifactorial disease, which results from the interaction between environmental, lifestyle, hormonal and genetic risk factors. In Reunion, more than 400 cases of breast cancer are diagnosed annually. As in mainland France, it is by far the most common cancer in Reunionese women, and its incidence continues to increase significantly since the age-standardized incidence rate increased by 28% between 2007 and 2017 to establish at 64.2/100,000 AP. Two studies carried out in patients carrying mutations in the breast-ovary predisposition genes in Reunion, showed that more than 50% of patients carrying BRCA mutation have a mutation specific to the Reunion population on the BRCA2 gene. These two studies, which confirm the genetic specificities of Reunion already described in other pathologies (Mucoviscidosis or Friedreich's Ataxia), suggest that this mutation could have a significant frequency in patients with breast cancer. Thus, evaluating the prevalence of this mutation in patients with breast cancer in Réunion would make it possible to adapt the indications for access to the oncogenetics consultation and the associated preventive measures