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Alzheimer's Disease Common Data Element Ontology for Clinical Trials
Last uploaded:
May 21, 2026
| Acronym | AD-CDO |
| Visibility | Public |
| Description | The Alzheimer’s Disease Common Data Element Ontology for Clinical Trials (AD-CDO) is a semantically enriched, lightweight ontology designed to represent and standardize key eligibility criteria concepts in Alzheimer’s disease (AD) clinical trials. It bridges the gap between broad biomedical ontologies and the task-specific needs of trial modeling. AD-CDO was constructed by extracting high-frequency concepts from over 1,500 AD interventional trials registered on ClinicalTrials.gov. To balance coverage with manageability, the ontology utilizes the Jenks Natural Breaks method to identify the most representative concepts. The key feature of AD-CDO is its extensive mapping to standardized biomedical vocabularies to support data integration and phenotyping. |
| Status | Beta |
| Format | OWL |
| Categories |
| Contact | Zenan Sun ([email protected]) |
| Creation date | May 21, 2026
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| Deprecated |
false
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| Modification date | May 21, 2026
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| Object creation date property |
http://purl.org/dc/elements/1.1/created
http://purl.org/dc/elements/1.1/created
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| Object modification date property |
http://purl.org/dc/elements/1.1/modified
http://purl.org/dc/elements/1.1/modified
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| Subject |
https://data.bioontology.org/categories/Neurologic_Disease
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https://data.bioontology.org/categories/Biomedical_Resources
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https://data.bioontology.org/categories/Vocabularies
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| Submission date | May 21, 2026
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| uri |
http://www.semanticweb.org/AD-CDE
http://www.semanticweb.org/AD-CDE
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