View clinical trials related to Fragile X Syndrome.
Filter by:The investigators wish to compare the brain distribution of GABA(A) receptors and GABA levels in young adult males with Fragile X Syndrome compared to idiopathic intellectual developmental disorder. The radiopharmaceutical [18F]flumazenil has been used to study GABA(A) receptor distribution in other genetic syndromes with autistic features; however, despite overwhelming evidence supporting the importance of the GABAergic system in FXS, no clinical investigation of this system in human FXS has been reported in the literature. Therefore, this study will provide the first in vivo comprehensive examination of the GABAergic system in FXS using hybrid positron emission tomography/ magnetic resonance imaging (PET/MRI).
This prospective observational study (registry) on Fragile X syndrome (FXS) is designed to evaluate characteristics, management and patient and caregiver-related outcomes the quality of life of Families and patients with FXS and to collect epidemiological and health economic data. - EXPLAIN will report current and comprehensive data onEpidemiology data on fragile X syndrome - Characterisation of the phenotype of FXS patients - Description of patient characteristics (demographics, family history, comorbidity, education, working situations, care situations, insurance status) - Documentation of therapeutic interventions - Recording and assessment of psychosocial parameters (possibly also inclusion of family members, carers) - quality of life of the carer and if possible the patient - Health economic parameters and consumption of resources
This study will enroll subjects who have completed Protocols 209FX301, 209FX302, or are currently participating in Protocol 2202 into a long-term study in which all subjects will receive active drug (arbaclofen).
The purpose of this study is to generate long-term safety, tolerability and efficacy data for AFQ056 in eligible adolescent patients with FXS who have participated in the CAFQ056B2214 study, the PK study CAFQ056B2131, or another study of AFQ056 which included FXS patients below 18 years of age provided the patient is at least 12 years of age at the time of entry into the current study.
Background: - In human DNA, the Fragile X (FMR1) gene helps to regulate the nervous and reproductive systems. If the gene is abnormal, it can cause different kinds of problems, such as abnormal menstrual periods, decreased fertility, muscle tremors, and mental retardation. An abnormal FMR1 gene can also make a person more susceptible to other medical conditions, such as thyroid problems, high blood pressure, seizures, and depression. More research is needed on how abnormalities in the FMR1 gene can lead to these problems, and how often these problems appear in individuals with an abnormal FMR1 gene. - Researchers are interested in developing a patient registry of women who have an abnormality in the FMR1 gene. This registry will allow researchers to follow participants over time and study possible effects of this abnormality on their general and reproductive health. Objectives: - To develop a patient registry of women with an abnormal FMR1 gene and monitor their general and reproductive health. Eligibility: - Women at least 18 years of age who have an abnormal FMR1 gene on the X chromosome. Design: - The following groups of women will be eligible for screening for this study: - Those who have a family member with Fragile X Syndrome or mental retardation - Those who have (or have a family member who has) primary ovarian insufficiency, also known as premature menopause - Those who have (or have a family member who has) certain neurological problems such as tremors or Parkinson's disease. - Eligible participants will be scheduled for an initial study visit at the National Institutes of Health Clinical Center. Participants who have regular menstrual periods should schedule the visit between days 3 and 8 of the menstrual cycle; those who do not have regular periods may have the visit at any time of the month. In addition, all estrogen-based treatments (such as birth control pills) must be stopped for 2 weeks prior to the study visit. - Participants will have a full physical examination, provide a medical history, and provide blood samples for immediate and future testing. Participants will return for yearly visits for the same tests for as long as the study continues. - Participants who have or develop primary ovarian insufficiency related to the FMR1 gene will also have tests to measure bone thickness and will have a vaginal ultrasound to examine the ovaries. These tests will be scheduled for a separate visit, and will be repeated every 5 years for the duration of the study.
Study 22001, "A Double-Blind, Placebo-Controlled, Flexible-Dose Evaluation of the Efficacy, Safety, and Tolerability of STX209 in the Treatment of Irritability in Subjects with Fragile X Syndrome" currently is evaluating the efficacy of STX209 (R-baclofen) for management of typical problem behaviors, such as irritability and aggression, in subjects with FXS. This study (22002) will enter subjects who complete Study 22001 into a long-term, open-label study.The open-label extension protocol will provide necessary data on the long-term safety and tolerability of STX209 among subjects with FXS who receive treatment under conditions more closely reflective of their general medical care.