Clinical trials: X-linked Mental Retardation
Fragile X Syndrome
Placebo-Controlled, Single-Dose Challenge Study of Gaboxadol in Adult Males With Fragile X Syndrome (FXS)
This is a single dose, placebo-controlled study. Male subjects aged 18 to 40 years (inclusive) with a diagnosis of FXS. Eligible subjects may enroll in this study comprised of two in home and two in clinic visits each 14 days…
- Trial name
- NCT06334419
- Testing
- Gaboxadol
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Craig Erickson
Mucopolysaccharidosis II
Mucopolysaccharidosis Type II Observational
This is an observational study planned to document prospectively disease manifestation and neurocognitive course in pediatric patients with a clinical presentation consistent with neuronopathic ("severe") MPS II undergoing…
- Trial name
- NCT04591834
- Testing
- Observational
- Where
- 3 sites in United States, Canada
- Sponsor
- REGENXBIO Inc.
Adrenoleukodystrophy
Newborn Screening for Adrenoleukodystrophy
To test if the routine newborn screening dried blood spots can be used to test if elevation of C26:0 lysophosphatidylcholine (C26:0-lyso-PC), a status indicating adrenoleukodystrophy (ALD)
- Trial name
- NCT02952482
- Testing
- newborns testing for ALD
- Where
- Taiwan
- Volunteers
- 45,796 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Pyruvate Dehydrogenase Complex Deficiency Disease
Natural History and Advanced Genetic Study of Pyruvate Dehydrogenase Complex Deficiencies
Children and adults with pyruvate dehydrogenase complex deficiency (PDCD) are participating in a research study seeking to better understand the genetic causes, symptoms, usefulness of current treatments, and outcomes for these…
- Trial name
- NCT03056794
- Testing
- No intervention
- Where
- United States
- Volunteers
- 150 people
- Sponsor
- University of Pittsburgh
Hunter Syndrome, Mucopolysaccharidosis II
Biomarkers for Hunter Syndrome
International, multicenter, observational, longitudinal study to establish Hunter Syndrom biomarker/s and to explore the clinical robustness, specificity, and long-term variability of these biomarker/s
- Conditions
- Hunter Syndrome, Mucopolysaccharidosis II, Hunter's Syndrome, Mild Form, Hunter's Canal Syndrome
- Trial name
- BioHunter (NCT01330277)
- Where
- 4 sites in Mexico
- Volunteers
- 11 people
- Sponsor
- CENTOGENE GmbH Rostock
Anxiety Disorders, Child Developmental Disorders, Pervasive
Examining Social, Emotional, and Cognitive Functioning in People With Fragile X and Down Syndromes
By testing physiological responses to anxiety in people with nervous system developmental disorders, this study will identify specific physiological characteristics associated with response to anxiety treatments.
- Trial name
- NCT00879515
- Where
- United States
- Volunteers
- 511 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Anophthalmos
Molecular Analysis of Microphthalmia/Anophthalmia
This study will try to learn more about the genetic cause and symptoms of microphthalmia (small eyes) or anophthalmia (absence of one or both eyes).
- Trial name
- NCT00011843
- Where
- United States
- Volunteers
- 450 people
- Sponsor
- National Human Genome Research Institute (NHGRI)
Intellectual Disability, Neurodevelopmental Disorders
Physical Activity and Community EmPOWERment Project
Purpose: Conduct a wait-list randomized controlled trial (RCT) of an inclusive physical activity program called PACE for adults with intellectual disability (ID) who are not yet showing signs of Alzheimer's Disease…
- Conditions
- Intellectual Disability, Neurodevelopmental Disorders, Autism Spectrum Disorder, Down Syndrome
- Trial name
- PACE (NCT06740162)
- Testing
- PACE Program
- Where
- 2 sites in United States
- Volunteers
- 376 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
Fragile X Syndrome
A Study to Assess the Tolerability of a Single Dose of STX107 in Adults With Fragile X Syndrome
The study will consist of a Screening period (up to 14 days), a Treatment period, and a Follow-Up period. Sixteen subjects will be enrolled into two sequential dose cohorts - 10 or 30 mg (or matching placebo) across four study…
- Trial name
- NCT01325740
- Testing
- STX107
- Where
- 5 sites in United States
- Volunteers
- 16 people
- Sponsor
- Seaside Therapeutics, Inc.
Fragile X Syndrome
A Randomized Study of BPN14770 in Male Adolescents (Aged 9 to < 18 Years) With Fragile X Syndrome
This is a 2-part study, with each part having a unique set of objectives for male adolescents aged 9 to < 18 years with fragile X syndrome (FXS).
- Trial name
- NCT05163808
- Testing
- zatolmilast
- Where
- 17 sites in United States
- Volunteers
- 163 people
- Sponsor
- Tetra Discovery Partners
Fragile X Syndrome
Probiotic Intervention for Microbiome Modifications and Clinical Improvements in Fragile X Syndrome
The primary objective of this clinical trial is to evaluate efficacy of probiotic mixture which contains Lactobacillus casei, Lactobacillus salivarius and Bifidobacterium breve, in children with Fragile X aged 3-18 years.
- Trial name
- NCT06279858
- Testing
- Probiotics
- Where
- Serbia
- Volunteers
- 15 people
- Sponsor
- Specila hospital for cerebral palsy and developmental neurology
Methyl CpG Binding Protein 2 (MECP2) Duplication Syndrome
ATTUNE: A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Intrathecally-Administered ION440 in Participants With Methyl CpG Binding Protein 2 (MECP2) Duplication Syndrome (MDS)
The primary purpose of this study is to evaluate the safety and tolerability of ION440.
- Trial name
- NCT06430385
- Testing
- ION440
- Where
- 12 sites in United States, Austria and 3 more
- Volunteers
- 48 people
- Sponsor
- Ionis Pharmaceuticals, Inc.
Lysosomal Storage Disease, Peroxisomal Disorder
Reduced-Intensity Hematopoietic Stem Cell Transplant for High Risk Lysosomal and Peroxisomal Disorders
This study is designed to test the ability to achieve donor hematopoietic engraftment while maintaining low rates of transplant-related mortality (TRM) in patients with high-risk lysosomal and peroxisomal disorders using a novel…
- Trial name
- NCT01626092
- Testing
- Campath-1H, Clofarabine, Melphalan
- Where
- United States
- Volunteers
- 3 people
- Sponsor
- Masonic Cancer Center, University of Minnesota
Hunter Syndrome
Collection and Study of Cerebrospinal Fluid in Patients With Hunter Syndrome
The purpose of the study is to collect data on CSF biomarkers in patients with Hunter Syndrome that would serve as reference data for comparison with cognitively impaired patients with Hunter syndrome, patients with other…
- Trial name
- NCT01449240
- Testing
- No treatment
- Where
- 7 sites in United States, United Kingdom
- Volunteers
- 10 people
- Sponsor
- Shire
Fragile X Syndrome
Metformin in Patients With Fragile X
The purpose of this trial is to investigate the use of metformin in the treatment of Fragile X syndrome (FXS) patients. Metformin is an FDA approved compound with an established safety profile and minimal side effects that…
- Trial name
- NCT04141163
- Testing
- Metformin
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Rowan University
Fragile-X Syndrome
EXPLAIN -FragilE X Registry: An exPlorative Longitudinal Study for chAracterIzation, Treatment Pathways and patieNt-related Outcomes
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…
- Trial name
- EXPLAIN (NCT01711606)
- Where
- Germany
- Volunteers
- 75 people
- Sponsor
- Novartis Pharmaceuticals
Fragile X Syndrome (FXS), Idiopathic Intellectual Developmental Disorder (IDD)
Neuroimaging GABA Physiology in Fragile X Syndrome
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.
- Trial name
- NCT04308954
- Testing
- [18F]flumazenil
- Where
- United States
- Volunteers
- 17 people
- Sponsor
- Stanford University
Pyruvate Dehydrogenase Complex Deficiency
Trial of Dichloroacetate in Pyruvate Dehydrogenase Complex Deficiency:
The objective of this research study is to conduct a pivotal phase 3 trial of treatment with the investigational drug dichloroacetate (DCA) in young children with deficiency of the pyruvate dehydrogenase complex (PDC).
- Trial name
- DCA/PDCD (NCT02616484)
- Testing
- Dichloroacetate (DCA), Genotype
- Where
- 10 sites in United States
- Volunteers
- 34 people
- Sponsor
- Saol Therapeutics Inc
Fragile X Syndrome
Open Label Extension to Assess the Long-Term Safety and Tolerability of ZYN002 in Children and Adolescents With FXS
ZYN002 is a pharmaceutically manufactured Cannabidiol that is developed as a clear gel that can be applied to the skin (called transdermal delivery).
- Trial name
- NCT03802799
- Testing
- ZYN002 - Cannabidiol Transdermal Gel
- Where
- 26 sites in United States, Australia and 2 more
- Volunteers
- 476 people
- Sponsor
- Zynerba Pharmaceuticals, Inc.
Angelman Syndrome, Smith-Magenis Syndrome
Ghrelin in Patients With a Rare Disease Associated With Intellectual Disability, and Hyperphagia, and/or Overweight, and/or Obesity
A significantly higher proportion of patients with rare diseases (RD) with intellectual disability (ID), present hyperphagia, overweight or obesity, compared to the general population.
- Conditions
- Angelman Syndrome, Smith-Magenis Syndrome, X Fragile Syndrome, Epilepsy
- Trial name
- HOGRID (NCT04768803)
- Testing
- acylated and unacylated ghrelin dosages
- Where
- 2 sites in France
- Volunteers
- 300 people
- Sponsor
- University Hospital, Toulouse