Overview

This trial is active, not recruiting.

Condition type 1 diabetes mellitus
Treatments ahsct, insulin therapy
Phase phase 2
Sponsor Shanghai Jiao Tong University School of Medicine
Start date February 2008
End date June 2016
Trial size 40 participants
Trial identifier NCT00807651, CCEMD006

Summary

This is a phase II trial in individuals who have been diagnosed with type 1 diabetes within the previous 6 months. The study is evaluating whether stem cell transplantation is safe when chemotherapy and immunotherapy are used in combination and if it has immune resetting effect that may halt the immune attack to pancreas islets and thus preserve the body's own insulin production.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Allocation non-randomized
Endpoint classification safety/efficacy study
Intervention model parallel assignment
Masking open label
Primary purpose treatment
Arm
(Active Comparator)
The participants not accepted written informed consent will receive insulin therapy
insulin therapy insulin injection therapy
All study participants not accepted written informed consent will received insulin therapy with consistent or multiply subcutaneous injection.
(Experimental)
The participants accepted written informed consent will receive the therapy of autologous hematopoietic stem cell transplantation(AHSCT)
ahsct hematopoietic stem cell
All study participants given written informed consent will perform autologous hematopoietic stem cell transplantation(AHSCT) and be treated with immunosuppression.

Primary Outcomes

Measure
Exogenous insulin dose
time frame: 1 month, 3 months, 6 months, 12 months, 24 months, 36 months

Secondary Outcomes

Measure
Anti-GAD titres
time frame: 1 month, 3 months, 6 months, 12 months, 24 months, 36 months
C-peptide level
time frame: 1 month, 3 months, 6 months, 12 months, 24 months, 36 months
HbA1c level
time frame: 3 months, 6 months, 12 months, 24 months, 36 months

Eligibility Criteria

Male or female participants from 14 years up to 35 years old.

Inclusion Criteria: - Type 1 diabetes mellitus diagnosed by clinical/metabolic parameters and positive anti-GAD antibody - Less than 6 months from diagnosis Exclusion Criteria: - Previous diabetic ketoacidosis - Pregnancy - Severe psychiatric disorder - Severe organic impairment (renal, hepatic, cardiac, pulmonary) - Active infectious disease - Previous or present neoplastic disease

Additional Information

Official title Safety and Efficacy Study of Autologous Nonmyeloablative Hematopoietic Stem Cell Transplantation for Early Onset Type 1 Diabetes-a Phase II Study
Principal investigator Guang Ning, MD. PhD.
Description Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks the insulin-producing beta cells in the pancreas. Generally, at the time someone is diagnosed with type 1 diabetes, not all of a person's beta cells have been destroyed. It's important to preserving the remaining precious beta cells so as to stop the diabetes progression. The exact mechanism of action of Autologous Hematopoietic Stem Cell Transplantation(AHST) in autoimmune disorders is not fully understood. Preliminary data supported post-AHST immune resetting included an increase in thymus-derived naive T cells, decreased central-memory T cells, increased output of recent thymic emigrants, and recovery of a diverse but distinct T-cell receptor repertoire following AHST. In the patients of type 1 diabetes, decreasing titer of anti-GAD antibody may bring improvement of beta-cell function after intensive immunosuppression. Furthermore, there may exit the possibility of regeneration of beta cells from surviving beta cells or from pancreatic or bone marrow stem cells. Patients recently diagnosed (less than 6 months) with type 1 diabetes mellitus proved by positive antibody against glutamic acid decarboxylase will be included in this study. Hematopoietic stem cells will be mobilized with cyclophosphamide (2.0 g/m2) and granulocyte colonystimulating factor (10 μg/kg per day) and then collected from peripheral blood by leukapheresis and cryopreserved. The cells were injected intravenously after conditioning with cyclophosphamide (200 mg/kg) and rabbit antithymocyte globulin (4.5 mg/kg). This procedure is performed in isolated rooms at the Bone Marrow Transplantation Unit of Shanghai Ruijin Hospital affiliated to Shanghai Jiao-Tong University School of Medicine. Patients will be discharged from the hospital 1 month after transplantation and continue the follow-ups for 3 years. Patients fitting the inclusion criteria but not agreeing to perform the transplantation are the control group and they will be followed in parallel with transplanted patients.
Trial information was received from ClinicalTrials.gov and was last updated in June 2016.
Information provided to ClinicalTrials.gov by Shanghai Jiao Tong University School of Medicine.