China Diabetes Type 1 Study (CD1S) by China Alliance for Type 1 Diabetes

Recruiting now

Conditions studied: Type1diabetes, Diabetes

In brief

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.

Key facts

Study ID

NCT05498974

Run by

Second Xiangya Hospital of Central South University

People needed

20000

Starts

2022-01-01

Expected to finish

2035-12-31

Last updated by the study team

2026-04-28

Who can join

Age: any. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• 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.

You may not qualify if…

• 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.

Where it is running

• Zhejiang Provincial People's Hospital — Hangzhou, Zhejiang, China (enrolling)
• Shenzhen Second People's Hospital — Shenzhen, Guangdong, China (enrolling)
• Hainan General Hospital — Haikou, Hainan, China (enrolling)
• the First Affiliated Hospital of Harbin Medical University — Harbin, Heilongjiang, China (enrolling)
• The First Affiliated Hospital of Henan University of Science and Technology — Luoyang, Henan, China (enrolling)
• The Second Xiangya Hospital, Central South University — Changsha, Hunan, China (enrolling)
• Gansu Provincial People's Hospital — Lanzhou, Gansu, China (enrolling)
• Heji Hospital Affiliated to Changzhi Medical College — Changzhi, Shanxi, China (enrolling)
• The First Affiliated Hospital of Xinjiang Medical University — Ürümqi, Xinjiang, China (enrolling)
• The First People's Hospital of Yunnan — Kunming, Yunnan, China (enrolling)
• The First Affiliated Hospital of Nanjing Medical University — Nanjing, Jiangsu, China

Full record on ClinicalTrials.gov

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