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Angelman Syndrome Natural History Study

Angelman Syndrome Natural History Study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04507997
Enrollment
300
Registered
2020-08-11
Start date
2018-08-01
Completion date
2031-04-30
Last updated
2025-04-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Angelman Syndrome

Keywords

Angelman syndrome

Brief summary

The goal of this study is to conduct a prospective, longitudinal natural history study of children and adults with Angelman Syndrome using investigator-observed and parent-reported outcome measures to obtain data that will be useful for future clinical trials.

Detailed description

The overall goal is to increase our understanding of the long-term natural history of Angelman syndrome and obtain Angelman-specific norms for outcome measures that can be used in clinical trials, ultimately improving the care of individuals with Angelman syndrome.

Interventions

None listed

Sponsors

University of California, San Diego
CollaboratorOTHER
Angelman Syndrome Biomarker & Outcome Measure Consortium (A-BOM)
CollaboratorUNKNOWN
Food and Drug Administration (FDA)
CollaboratorFED
Angelman Syndrome Foundation Canada
CollaboratorUNKNOWN
Foundation for Angelman Syndrome Therapeutics Canada
CollaboratorUNKNOWN
Foundation for Angelman Syndrome Therapeutics
CollaboratorUNKNOWN
Angelman Syndrome Foundation, Inc.
CollaboratorOTHER
Boston Children's Hospital
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Molecular diagnosis of Angelman syndrome

Exclusion criteria

* Presence of another condition, unrelated to Angelman syndrome, that affects neurodevelopment

Design outcomes

Primary

MeasureTime frameDescription
Medical HistoryThrough study completion, an average of 1 yearIncludes various medical complications, including seizure history
Vineland Adaptive Behavior Scales, 3rd editionThrough study completion, an average of 1 yearDevelopmental and Adaptive skills
Bayley Scales of Infant and Toddler Development, 4th editionThrough study completion, an average of 1 yearDevelopmental skills
Observer-Reported Communication Ability (ORCA) MeasureThrough study completion, an average of 1 yearCommunication skills

Countries

Canada, United States

Contacts

Primary ContactWen-Hann Tan, BMBS
wen-hann.tan@childrens.harvard.edu617-355 6394
Backup ContactBatsheva Friedman, MA
Batsheva.Friedman@childrens.harvard.edu617-355-2030

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026