NCT05498974Recruiting
China Diabetes Type 1 Study (CD1S) by China Alliance for Type 1 Diabetes
Source: ClinicalTrials.gov · Last updated 28 Apr 2026
Brief summary (registry, in English)
The aim of the China Diabetes Type 1 Study (CD1S) is to conduct a nationwide type 1 diabetes (T1D) registry study in patients with T1D and in pediatric adolescent patients with diabetes who had an age of onset \<= 20 years. CD1S compromises a retrospective study enrolling inpatients hospitalized from Jan 1st, 2016 to Dec 31, 2021, and a prospective study beginning from the year 2022.
- Status (registry)
- Recruiting
- Study type
- Observational
- Enrollment
- 20000 (estimated)
- First submitted
- 2 Jul 2022
- Start date
- 1 Jan 2022
- Primary completion date
- 31 Dec 2035
- Lead sponsor
- Second Xiangya Hospital of Central South University
- Diseases
- Type 1 diabetes
- NCT number
- NCT05498974
What you commit to
- Study type: Observational
- Planned participants: 20000
- From 1 Jan 2022 to the primary completion date, 31 Dec 2035
- 11 sites in 1 country
- 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, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Age
- For enrolment of patients with T1D, exclusion was made if any of the following criteria were met (not applicable to those with onset under 20 years of age)
- No insulin dependence for at least 6 months after diagnosis of diabetes mellitus.
- No DKA for 1 month off insulin for those with a history of diabetes \> 1 year. ③ C-peptide \> 800 pmol/L at any time point.
Who the study is looking for
- 1\. Patients with type 1 diabetes mellitus of any duration; meeting criteria (1) or any of (2) or any of (3)
- Clinical diagnosis of type 1 diabetes by a specialist
- Age at onset \< 15 years; no overweight or obesity at onset; previous diabetic ketoacidosis; highest random C-peptide \< 200 pmol/L
- Initiation and continuation of insulin therapy (except pancreatic or islet transplantation) after diagnosis; positive islet autoantibodies Or 2. Children and adolescents with diabetes mellitus at age of onset \<= 20 years, regardless of type and duration of disease.
Sex: All · Does not accept healthy volunteers
Sites (11)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| The Second Xiangya Hospital, Central South University Coordinator of this site? Confirm its status | Changsha | China | Recruiting |
| Heji Hospital Affiliated to Changzhi Medical College Coordinator of this site? Confirm its status | Changzhi | China | Recruiting |
| Hainan General Hospital Coordinator of this site? Confirm its status | Haikou | China | Recruiting |
| Zhejiang Provincial People's Hospital Coordinator of this site? Confirm its status | Hangzhou | China | Recruiting |
| The First Affiliated Hospital of Harbin Medical University Coordinator of this site? Confirm its status | Harbin | China | Recruiting |
| The First People's Hospital of Yunnan Coordinator of this site? Confirm its status | Kunming | China | Recruiting |
| Gansu Provincial People's Hospital Coordinator of this site? Confirm its status | Lanzhou | China | Recruiting |
| The First Affiliated Hospital of Henan University of Science and Technology Coordinator of this site? Confirm its status | Luoyang | China | Recruiting |
| The First Affiliated Hospital of Nanjing Medical University Coordinator of this site? Confirm its status | Nanjing | China | Not yet recruiting |
| Shenzhen Second People's Hospital Coordinator of this site? Confirm its status | Shenzhen | China | Recruiting |
| The First Affiliated Hospital of Xinjiang Medical University Coordinator of this site? Confirm its status | Ürümqi | China | Recruiting |
Related publications
This page is information, not medical advice. Discuss any trial with your doctor.