NCT00279318Completed
TEDDY - The Environmental Determinants of Diabetes in the Young
Consortium for Identification of Environmental Triggers of Type 1 Diabetes
Source: ClinicalTrials.gov · Last updated 22 Sept 2025
Brief summary (registry, in English)
The long-term goal of the TEDDY study is the identification of infectious agents, dietary factors, or other environmental agents, including psychosocial factors which trigger T1DM in genetically susceptible individuals or which protect against the disease. Identification of such factors will lead to a better understanding of disease pathogenesis and result in new strategies to prevent, delay or reverse T1DM.
- Status (registry)
- Completed
- Study type
- Observational
- Enrollment
- 8667 (actual)
- First submitted
- 17 Jan 2006
- Start date
- 1 Sept 2004
- Primary completion date
- 30 Jun 2025
- Lead sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- Diseases
- Type 1 diabetes
- NCT number
- NCT00279318
What you commit to
- Study type: Observational
- Participants enrolled: 8667
- From 1 Sept 2004 to the primary completion date, 30 Jun 2025
- 7 sites in 4 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study design.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Have an illness or birth defect that precludes long-term follow-up or involves use of treatment that may alter the natural history of diabetes (e.g. steroids or insulin)
Other
- Refuses to have blood and stool samples stored at the NIDDK Repository
Who the study is looking for
- Newborns with high risk HLA in the general population or having a first- degree relative affected with T1DM
- Newborns are less than 4 months of age
Age in the registry: 0 months to 4 months · Sex: All · Accepts healthy volunteers
Sites (7)
Sites in registry order. Save your city in your profile to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Diabetes Research Institute Coordinator of this site? Confirm its status | Munich | Germany | Unknown status |
| Wellbeing Services County of Southwest Finland Coordinator of this site? Confirm its status | Turku | Finland | Unknown status |
| Lund University Coordinator of this site? Confirm its status | Malmö | Sweden | Unknown status |
| Augusta University Coordinator of this site? Confirm its status | Augusta | United States | Unknown status |
| University of Colorado Health Sciences Center Coordinator of this site? Confirm its status | Denver | United States | Unknown status |
| Augusta University Coordinator of this site? Confirm its status | Gainesville | United States | Unknown status |
| Pacific Northwest Research Institute Coordinator of this site? Confirm its status | Seattle | United States | Unknown status |
Related publications
- Dietary vitamin C intake and the risk of islet autoimmunity and type 1 diabetes: The Environmental Determinants of Diabetes in the Young (TEDDY) Study.Eur J Nutr · 2026 · PMID 42782404
- Child and mother study satisfaction in a longitudinal study of children at-risk for type 1 diabetes.BMC Pediatr · 2026 · PMID 42393557
This page is information, not medical advice. Discuss any trial with your doctor.