Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Intellectual Disability: early-phase trial registry
13 of 27 indexed Intellectual Disability trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #598 of 28,707 conditions by registered trial count.
27 US clinical trials · 13 currently recruiting · #598 of 28,707 conditions by registered trial count
Intellectual Disability: 27 US clinical trials tracked, 13 recruiting.
Intellectual Disability is the subject of 27 registered US clinical trials on ClinicalTrials.gov, 13 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 1 in Phase 1-2 (earlier-stage). The most active sponsor is Boston Children's Hospital, running 3 of these trials.
Enrollment posture brief
Registry condition intellectual-disability
OPEN 13 | RECR 48% | LATE 0 | EARLY 1 | RANK #598 | SPON 3
Volume-matched condition peers
Nearest open-share peer: Merkel Cell Carcinoma (48% recruiting · 27 trials)
Intellectual Disability lists 13 open slots (48% of 27 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Intellectual Disability on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
-
Intellectual Disability is recruiting above its size-band peers.
13 of 27 indexed trials (48.1%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
-
Sponsorship of Intellectual Disability trials is spread across many organizations.
Boston Children's Hospital accounts for 3 of 27 trials (11.1%). 24 distinct sponsors appear on at least one study for this condition label.
-
Typical Intellectual Disability enrolment sits around 150 participants.
Median target enrolment is 150 among the 27 trials that report a genuine target (sentinel values excluded). 12 of those (44.4%) plan for fewer than 100 participants.
-
Intellectual Disability splits between interventional and observational designs.
18 interventional and 9 observational studies make up this index (66.7% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
27 total, page 1 of 1
Rett Syndrome Registry
International Rett Syndrome Foundation
NCT05432349
Future Planning and Well-Being for Individuals With Intellectual Disabilities and Family Caregivers
Northwell Health
NCT06065527
Longitudinal Study of Neurogenetic Disorders
Columbia University
NCT03492060
Physical Activity and Community EmPOWERment Project
University of North Carolina, Chapel Hill
NCT06740162
Characterization of Nociception Phenotype in Individuals With Intellectual Disability
National Institutes of Health Clinical Center (CC)
NCT05473429
Online Learning Module to Advance Research Related to People With Disabilities
Albert Einstein College of Medicine
NCT07220837
MEHMO Natural History and Biomarkers
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NCT06019182
Mental Health Crises in Youth With IDDs
Rady Pediatric Genomics & Systems Medicine Institute
NCT05471232
Cooking Skills to Improve Long-Term Weight Loss in Young Adults With Intellectual Disabilities
University of Kansas Medical Center
NCT06961591
Harnessing Communication Preferences
Joel E. Ringdahl
NCT07278544
Testing an Evidence-Based Supported Employment Model in Autistic Young Adults
University of California, Davis
NCT06829264
Early Augmentative and Alternative Communication (AAC) Intervention Delivered Via Hybrid Telehealth
Oregon Health and Science University
NCT05743439
Impact of Sulphonylureas on Neurodevelopmental Outcomes in KCNJ11-related Intermediate Developmental Delay, Epilepsy and Neonatal Diabetes (iDEND) Syndrome
Royal Devon and Exeter NHS Foundation Trust
NCT05751525
Improving the Health of Parents and Their Adolescent and Transition-age Youth With Intellectual and Developmental Disabilities
University of North Carolina, Chapel Hill
NCT05986305
Mapping the Genotype, Phenotype, and Natural History of Phelan-McDermid Syndrome
Boston Children's Hospital
NCT02461420
Autism Spectrum Disorder (ASD) and Intellectual Disability (ID) Determinants in Tuberous Sclerosis Complex (TSC)
Boston Children's Hospital
NCT02461459
Facing Your Fears: Adolescents With ASD and Intellectual Disability
University of Colorado, Denver
NCT05131425
We Walk Plus Study for Older Adults With Intellectual Disabilities
University of Illinois at Chicago
NCT04573530
Supporting the Health and Well-being of Children With Intellectual and Developmental Disability During COVID-19 Pandemic
Washington University School of Medicine
NCT04565509
Sedation Strategy and Cognitive Outcome After Critical Illness in Early Childhood
University of Pennsylvania
NCT02225041
Down Syndrome Memantine Follow-up Study
University Hospitals Cleveland Medical Center
NCT02304302
Fit Families Multisite
University of Wisconsin, Madison
NCT05451459
Effects of Guided Exercise on Functional Performance and Independence in Adults With Intellectual Disability
University of Delaware
NCT04616638
Mapping the Phenotype in Adults With Phelan-McDermid Syndrome
Boston Children's Hospital
NCT03426059
Effect of Sensory Adapted Dental Environment on Dental Anxiety of Children With Intellectual and Developmental Disabilities
Virginia Commonwealth University
NCT03218462
Parents as the Primary Sexuality Educators for Their Young Adults With Down Syndrome
Wake Forest University Health Sciences
NCT03135236
Expanding Interventions for Automatically Maintained SIB
University of Georgia
NCT06739616
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 2 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Intellectual Disability records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Intellectual Disability trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Intellectual Disability page
27 registered trials, 13 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 13 Intellectual Disability trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Boston Children's Hospital sponsors the most Intellectual Disability trials on record, review their full trial history before evaluating a specific study. See Boston Children's Hospital's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Intellectual Disability condition card totals 27 registered trials; most-linked intervention Physical Activities & Activity Booklets (via FitFamilies app); top US site state Maryland. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.