Intellectual disability
MONDO:0001071A broad category of disorders characterized by an impairment to the intelligence an individual possesses. These impairments can result from trauma, birth, or disease and are not restricted to any particular age group.
Also known as: intellectual disabilities, intellectual disability
169 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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Scientists hunt for clues in rare genetic brain disorder
Knowledge-focused TerminatedThis study aimed to observe how MECP2 duplication syndrome progresses over time by measuring biological markers in spinal fluid and blood, and by tracking changes in development, behavior, and seizures. It enrolled 29 males aged 1 month to 65 years with a confirmed genetic diagno…
Sponsor: Ionis Pharmaceuticals, Inc. • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:05 UTC
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Rare disease study aims to map MLIV's natural course
Knowledge-focused TerminatedThis study followed 7 people with Mucolipidosis Type IV (MLIV) to learn how the disease naturally progresses. Researchers used tests like neuropsychological exams, blood and urine tests, and brain MRIs to find better ways to measure the disease. The goal was to improve future cli…
Sponsor: Baylor Research Institute • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:14 UTC