1. Trial hypothesis: Is it safe and effective to use mesenchymal stem cells from the umbilical cord to treat type 1 diabetes?

Study ID: NCT01219465 Qingdao University

2. Trial hypothesis: Will umbilical cord derived mesenchymal stem cell infusion signal beta-cells to regenerate to improve diabetic  control.

Study ID: NCT01374854 Fuzhou General Hospital

3. Trial hypothesis: Effectiveness of usingsequential transplantation of umbilical cord stem cells and pancreatic islet cells to treat diabetes in children and adolescents.

Study ID: NCT03835312 Children’s Hospital of Fudan University