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163 studies found for:    "Renpenning syndrome" OR "Mental Retardation, X-Linked"
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Rank Status Study
1 Recruiting Clinical Phenotyping and Characterization of Neural Networks and Cognitive Processes Involved in Mental Retardation X-linked
Condition: X-linked Mental Retardation
Intervention: Behavioral: Neuropsychological, cognitive and behavioral assessment
2 Recruiting Observational Study of Males With Creatine Transporter Deficiency
Condition: Creatine Deficiency, X-linked
Intervention:
3 Unknown  Genetic Disease Gene Identification
Conditions: Congenital Vertical Talus;   Familial Encephalopathy With Neuroserpin Inclusion Bodies;   Idiopathic Generalised Epilepsy;   Familial Dementia;   X-Linked Mental Retardation
Intervention:
4 Not yet recruiting Triac Trial II in MCT8 Patients
Condition: Allan-Herndon-Dudley Syndrome
Intervention: Drug: Triac
5 Active, not recruiting Triac Trial in MCT8 Patients
Condition: Allan-Herndon-Dudley Syndrome
Intervention: Drug: Triac
6 Recruiting Rare Diseases Clinical Research Network: Neurophysiological Correlates
Conditions: Rett Syndrome, Preserved Speech Variant;   Mecp2 Duplication Syndrome;   Rett-related Disorders
Intervention: Procedure: Auditory and Visual Event-related Potentials and EEG
7 Recruiting Combining Lovastatin and a Parent-Implemented Language Intervention for Fragile X Syndrome
Conditions: Fragile X Syndrome;   Genetic Diseases
Interventions: Drug: Lovastatin;   Drug: Placebo
8 Recruiting Long-term Evaluation on Height and Weight in Patients With MPS II Who Started Treatment at < 6 Years of Age
Condition: Hunter Syndrome
Intervention: Drug: Elaprase for intravenous (IV) infusion
9 Completed Estrogen Receptors Beta (ER-B) as Therapeutic Targets for the Improvement of Cognitive Performance in Fragile-X (TESXF)
Condition: Fragile X Syndrome
Interventions: Dietary Supplement: Epigallocatechin-3-gallate (EGCG);   Dietary Supplement: Placebo
10 Terminated EXPLAIN -FragilE X Registry: An exPlorative Longitudinal Study for chAracterIzation, Treatment Pathways and patieNt-related Outcomes
Condition: Fragile-X Syndrome
Intervention:
11 Unknown  Validation of Saliva in the Esoterix Genetic Laboratories Fragile X Assay
Condition: Fragile X Syndrome
Intervention:
12 Completed A Single-Dose Study in Normal Volunteers to Assess the Safety, Tolerability and Pharmacokinetics of STX107
Condition: Fragile X Syndrome
Intervention: Drug: STX107
13 Completed Biomarker and DNA Collection in Subjects Participating in Protocol 22003
Condition: Fragile X Syndrome
Intervention: Drug: STX209
14 Active, not recruiting Aromatase Activity and Ovarian Growth Factors in African-American Versus Caucasian Women
Conditions: Healthy;   Fragile X Syndrome
Intervention: Procedure: Follicle Aspiration
15 Recruiting Natural History of Rett Syndrome & Related Disorders
Conditions: Rett Syndrome;   MECP2 Duplication dIsorder;   RTT-related Conditions
Intervention:
16 Recruiting Biobanking of Rett Syndrome and Related Disorders
Conditions: Rett Syndrome;   MECP2 Duplication;   CDKL5;   FOXG1 Disorders
Intervention:
17 Completed Genetic and Physical Characteristics of Rett Syndrome
Conditions: Rett Syndrome;   MECP2 Duplication Disorder;   Rett-related Disorder
Intervention:
18 Not yet recruiting Open Label Trial of Triheptanoin (UX007) in Treatment of Rett Syndrome.
Condition: Rett Syndrome
Intervention: Drug: Tridecanoic Acid
19 Enrolling by invitation Single-Dose Acamprosate, Lovastatin, Minocycline and Placebo in Fragile X Syndrome
Condition: Fragile X Syndrome
Interventions: Drug: Acamprosate;   Drug: Lovastatin;   Drug: Minocycline;   Drug: Placebo
20 Recruiting Clinical Trial for Asses the Safety and Efficacy of Vitamin C and Vitamin E in Combination Versus Placebo for Treating Cognitive and Behavior Disorder in Children With Fragile X Syndrome
Condition: X Fragile Syndrome
Interventions: Drug: Vitamin C 10mg/Kg Vitamin E 10 mg/Kg;   Drug: Placebo

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Study has passed its completion date and status has not been verified in more than two years.