View clinical trials related to Genetic Diseases, Inborn.
Filter by:Background: - People with sickle cell disease and other blood disorders sometimes get chronic leg ulcers. These are wounds that develop on the skin and don t go away. Current treatments do not work very well, so researchers want to learn more about why the ulcers happen. They want to find out which bacteria may cause it, and if external factors play a role. Objective: - To study social and environmental factors of sickle cell disease and the causes of sickle cell disease leg ulcers. Eligibility: - People age 18 and older who have sickle cell disease or another red cell disorder, with or without an active leg ulcer. Design: - Participants will have a medical history and clinical evaluation. They will also have blood drawn. - Participants will complete questionnaires about their life, health, environment, stress, and other topics. - Participants may provide a small sample of hair. - Participants will be asked to collect a small amount of saliva. - Participants with leg ulcers will have their skin microbiome sampled. The microbiome is all of the microbes (bacteria and and/or fungi) and their genes in and on the body. Researchers will use swabs to collect skin samples. Photographs will be taken of the skin sample area. - Some participants without leg ulcers also will have their skin microbiome sampled. - Some participants who have their skin microbiome sampled will return for a second visit. At this visit, their microbiome will be resampled. It will take place more than 30 days after the first visit.
The 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.
The purpose of this study is evaluate the natural course of disease progression related to gross motor function in children with metachromatic leukodystrophy (MLD).
This trial is conducted in Asia. The aim of the trial is to investigate the long-term efficacy and safety of two doses of NN-220 (somatropin) in short stature due to Noonan syndrome.
This study is conducting a randomized controlled trial (RCT) with up to 400 subjects (women & partners) seeking pre-conception carrier testing to assess the impact of the program using Whole Genome Sequencing (WGS). 1. The investigators hypothesize that whole genome sequencing will increase the detection of carrier status for Mendelian recessive and x-linked conditions. 2. The investigators hypothesize that parents will act on the knowledge of their carrier status by making different reproductive choices than parents who do not receive this information. 3. The investigators hypothesize that the psychosocial risks are increased among parents who receive expanded carrier screening using Next Generation Sequencing (NGS) compared with usual care.
Background: - 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.
Dystrophinopathy is a disease continuum that includes Duchenne muscular dystrophy, which develops in boys. It is caused by a mutation in the gene for dystrophin, a protein that is important for maintaining normal muscle structure and function. Loss of dystrophin causes muscle fragility that leads to weakness and loss of walking ability. A specific type of mutation, called a nonsense (premature stop codon) mutation is the cause of dystrophinopathy in approximately 10-15 percent (%) of boys with the disease. Ataluren is an orally delivered, investigational drug that has the potential to overcome the effects of the nonsense mutation. The main goal of this Phase 3 study is to evaluate the effect of ataluren on walking ability. The effect of ataluren on physical function, quality of life, and activities of daily living will be evaluated. This study will also provide additional information on the long-term safety of ataluren.
The North American Mitochondrial Disease Consortium (NAMDC) maintains a patient contact registry and tissue biorepository for patients with mitochondrial disorders.
The goal of this research study is to create an internet-based program designed to improve the communication of health and health history information among family members affected by Lynch syndrome.
Background: - Atopic dermatitis, or eczema, is a chronic skin disorder. Patients sometimes have infections with S. aureus bacteria. Researchers want to study how eczema treatments affect the number and the type of bacteria on the skin. Objectives: - To study the effect of eczema treatments on skin bacteria. Eligibility: - Individuals between 2 and 25 years of age who have moderate to severe atopic dermatitis. - Healthy volunteers between 18 and 40 years of age with no history of eczema. Design: - Participants will be screened with a physical exam and medical history. Research samples will be collected. Skin biopsies may also be performed. - All participants will be assigned to one of several study groups. - This study will last for up to 1 year. Healthy volunteers must not have taken antibiotics in the year before the start of the study. - All participants will have regular study visits during their 1-year participation. More research samples will be collected at these visits.