149 studies found for:    Open Studies | "Mental Retardation"
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Rank Status Study
21 Recruiting Down Syndrome Memantine Follow-up Study
Conditions: Down Syndrome;   Intellectual Disability
Interventions: Drug: Memantine;   Drug: Placebo
22 Recruiting Sedation Strategy and Cognitive Outcome After Critical Illness in Early Childhood
Conditions: Intellectual Disability;   Perceptual Disorders;   Memory Disorders
Intervention:
23 Unknown  The Additive Effect of Cognitive Behavioral Treatment (CBT) to Conventional Weight Loss Intervention Program for Young Adults With Intellectual Disabilities
Conditions: Overweight;   Obesity;   Learning Disability
Interventions: Other: Nutritional intervention and physical activity;   Other: Nutritional intervention, physical activity and behavioral treatment
24 Recruiting Combining Lovastatin and a Parent-Implemented Language Intervention for Fragile X Syndrome
Conditions: Fragile X Syndrome;   Genetic Diseases
Interventions: Drug: Lovastatin;   Drug: Placebo
25 Not yet recruiting Triac Trial II in MCT8 Patients
Condition: Allan-Herndon-Dudley Syndrome
Intervention: Drug: Triac
26 Not yet recruiting Associative Memory in Autism Spectrum Disorder
Condition: Autistic Disorder
Interventions: Other: Electroencephalography;   Behavioral: Neuropsychological assessment
27 Recruiting Natural History Study - Mitochondrial Disease
Condition: m.3243 A>G Mitochondrial DNA Mutation Carrier or Relative
Intervention:
28 Recruiting Pediatric Patients With Metabolic or Other Genetic Disorders
Conditions: Genetic Disorder;   Asperger Disorder;   Autism Spectrum Disorder;   Fragile X Syndrome;   Developmental Delay
Intervention:
29 Recruiting Cognitive Training for Fragile X Syndrome
Condition: Fragile X Syndrome
Intervention: Other: Working Memory Training
30 Recruiting Natural History of Rett Syndrome & Related Disorders
Conditions: Rett Syndrome;   MECP2 Duplication dIsorder;   RTT-related Conditions
Intervention:
31 Not yet recruiting Glutaminergic Transmission in Autism : Molecular Imaging Exploration
Conditions: Autism;   Fragile-X Syndrome (FXS);   Healthy Volunteers
Interventions: Drug: [18F]FPEB PET imaging;   Other: Biological samples;   Other: MRI
32 Not yet recruiting Safety and Exploratory Efficacy of HSC835 in Patients With Inherited Metabolic Disorders (IMD)
Condition: Hurler Syndrome, Metachromatic Leukodystrophy, Globoid Cell Leukodystrophy, Krabbe, Cerebral Adrenoleukodystrophy
Intervention: Drug: Umbilical cord blood transplantation with HSC835
33 Recruiting A Safety Study of NNZ-2566 in Pediatric Rett Syndrome
Condition: Rett Syndrome
Interventions: Drug: NNZ-2566;   Drug: Placebo
34 Recruiting Biobanking of Rett Syndrome and Related Disorders
Conditions: Rett Syndrome;   MECP2 Duplication;   CDKL5;   FOXG1 Disorders
Intervention:
35 Not yet recruiting Treatment of Mitochondrial Dysfunction in Rett Syndrome With Triheptanoin
Condition: Rett Syndrome
Intervention: Drug: triheptanoin
36 Not yet recruiting Combined Treatment of Minocycline and Lovastatin to Treat Individuals With Fragile X Syndrome
Condition: Fragile X Syndrome
Interventions: Drug: Minocycline, then Minocycline/Lovastatin;   Drug: Lovastatin, then Minocycline/Lovastatin
37 Not yet recruiting Study of Idursulfase-beta (GC1111) in Hunter Syndrome
Condition: Mucopolysaccharidosis II
Interventions: Biological: idursulfase beta;   Biological: idursulfase
38 Not yet recruiting Trial of Dichloroacetate in Pyruvate Dehydrogenase Complex Deficiency:
Condition: Pyruvate Dehydrogenase Complex Deficiency
Interventions: Drug: Dichloroacetate (DCA);   Other: Placebo;   Genetic: Genotype
39 Recruiting A Pilot Study of Vitamin D in Boys With X-linked Adrenoleukodystrophy
Condition: X-linked Adrenoleukodystrophy
Intervention: Dietary Supplement: vitamin D3
40 Recruiting Pharmacological Treatment of Rett Syndrome With Statins
Condition: Rett Syndrome
Intervention: Drug: Lovastatin

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Indicates status has not been verified in more than two years