| Recruiting | The Relationship Between Hand Grip Strength, Trunk Control and Functional Performance in Individuals With Mild NCT06934850 | Inonu University | — |
| Recruiting | Effects of Different Dual-Task Exercises in Children With Mild Mental Retardation NCT07028333 | Istanbul University - Cerrahpasa | N/A |
| Recruiting | Magnetoencephalography in Children NCT06668519 | Children's Hospital of Fudan University | — |
| Recruiting | A Study on the Preference of Risperidone Dosage Forms NCT06657430 | Shanghai Mental Health Center | — |
| Recruiting | Development and Application of a Diagnosis and Treatment System for Children's Brain Diseases Based on Knowled NCT06848959 | Yun Liu,PhD | — |
| Unknown | A Cross-sectional Study to Evaluate Speech and Language Development in Chinese Children Aged 2-6 Years NCT05442229 | Tongji Hospital | — |
| Terminated | European Alpha-Mannosidosis Participant NCT03651245 | CENTOGENE GmbH Rostock | — |
| Withdrawn | Biomarker for Gangliosidosis: BioGM1/BioGM2 (BioGM1/GM2) NCT02298647 | CENTOGENE GmbH Rostock | — |
| Withdrawn | Biomarker for Sanfilippo Type A-B-C-D Disease (BioSanfilippo) NCT02298686 | CENTOGENE GmbH Rostock | — |
| Completed | Effectiveness of Video Based Games on Upper Extremity Functions in Mild Mental Retardation Diagnosed Cases NCT03503955 | Istanbul University | N/A |
| Completed | Fragility Assessment in Adults With ADHD and Mental Retardation NCT02791321 | University Hospital, Montpellier | N/A |
| Terminated | "Cognitus & Moi": a New Cognitive Remediation Tool NCT02797418 | Hôpital le Vinatier | N/A |
| Completed | Neurodevelopment Outcome of Newborns Exposed to Zika Virus (ZIKV) in Utero NCT02943304 | Universidad Industrial de Santander | — |
| Unknown | Demographic Characteristics of Children Suffering From Mental Retardation or Cerebral Palsy in the Israeli Ara NCT02214745 | Hillel Yaffe Medical Center | — |
| Unknown | Safety and Efficacy of BMMNCin Patients With Mental Retardation NCT01908400 | Chaitanya Hospital, Pune | Phase 1 / Phase 2 |
| Completed | Brain-Derived Neurotrophic Factor in Obesity and Brain Function NCT01517048 | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | — |
| Withdrawn | Stem Cell Therapy in Mental Retardation NCT02245724 | Neurogen Brain and Spine Institute | Phase 1 |
| Completed | Predicting Developmental Disability Type and Mental Retardation Level in Children With General Developmental D NCT01430845 | Sheba Medical Center | — |
| Withdrawn | Postnatal HCMV Infection in Very Preterm Infants. Implications, Morbidity, Growth and Neurodevelopmental Outco NCT01151462 | Oslo University Hospital | — |
| Completed | Cognitive Neuroscience of Autism Spectrum Disorders NCT01031407 | National Institute of Mental Health (NIMH) | — |
| Completed | Microarray Analysis in Syndromic Obesity NCT01043198 | University Hospital, Bordeaux | N/A |
| Unknown | Pain and Emotional Expression in Children With Autism or Mental Retardation NCT01043822 | University Hospital, Montpellier | — |
| Completed | Resistance Training Program, Labor Inclusion, Intellectual Disability NCT01456910 | University of Brasilia | N/A |
| Completed | Characterization of WAGR Syndrome and Other Chromosome 11 Gene Deletions NCT00758108 | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | — |
| Unknown | Ketogenic Diet vs.Antiepileptic Drug Treatment in Drug Resistant Epilepsy NCT00552526 | Oslo University Hospital | Phase 4 |
| Completed | Treatment Strategies for Children With Smith-Magenis Syndrome NCT00506259 | National Human Genome Research Institute (NHGRI) | Phase 1 |
| Completed | Effect of Valproate on Propofol NCT01170377 | Okayama University | — |
| Completed | Accurate Controlled Dental Sedation NCT00963898 | Okayama University | N/A |
| Completed | Healthy Lifestyles for People With Intellectual Disabilities NCT00597948 | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | N/A |
| Completed | Safety and Efficacy Study of Oral Glycopyrrolate Liquid for the Treatment of Pathologic (Chronic Moderate to S NCT00491894 | Shionogi | Phase 3 |
| Completed | Correlation BIS Scores Mentally Retarded Patients NCT00468338 | Rutgers, The State University of New Jersey | — |
| Completed | Prevalence of Spasticity in Adults With Mental Retardation Living in the Community NCT00282191 | Vanderbilt University | — |
| Completed | Use of Sustained Release Antiepileptic Medication (Depakote® ER) for Pediatric Epilepsy in a Mental Retardatio NCT00207935 | Children's National Research Institute | Phase 4 |
| Completed | School Intervention With Daily Physical Activity and Healthy Food for Students With an Intellectual Disability NCT01291238 | Karolinska Institutet | N/A |
| Completed | Open Label Study of Zonisamide in the Treatment of Epilepsy in Patients With Mental Retardation NCT00298818 | Northwell Health | — |
| Completed | MR Scanning of Very Young Children With Severe Developmental Disorders NCT00156221 | UMC Utrecht | — |
| Completed | Exploring the Comorbidity Between Mental Disorders and General Medical Conditions NCT03847753 | University of Aarhus | — |
| Completed | Atypical Neuroleptic Drugs in People With Mental Retardation/Developmental Delay NCT00065273 | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | Phase 3 |
| Unknown | Self-Injury: Diagnosis and Treatment NCT00065936 | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | Phase 3 |
| Completed | Evaluation of Patients With Unresolved Chromosome Abnormalities NCT00001639 | National Human Genome Research Institute (NHGRI) | — |
| Completed | Genetic Aspects of Neurologic and Psychiatric Disorders NCT00001544 | National Institute of Mental Health (NIMH) | — |
| Unknown | Repetitive Behavior Disorders in People With Severe Mental Retardation NCT00491478 | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | Phase 3 |
| Suspended | Phase II Study of Stereotypes and Mental Retardation: Neurobiological Basis NCT00004300 | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | Phase 2 |