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Sponsors and Collaborators: |
National Institute of Allergy and Infectious Diseases (NIAID) National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) |
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Information provided by: | National Institute of Allergy and Infectious Diseases (NIAID) |
ClinicalTrials.gov Identifier: | NCT00434850 |
Type 1 diabetes is an autoimmune disease in which the insulin-producing pancreatic beta cells are destroyed, resulting in poor blood sugar control. The purpose of this study is to assess the safety and efficacy of deoxyspergualin (DSG), an immunosuppressant drug, on post-transplant islet function in people with type 1 diabetes who have not responded to intensive insulin therapy.
Condition | Intervention | Phase |
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Diabetes Mellitus, Type 1 |
Procedure: Islet transplant Drug: Deoxyspergualin Drug: Antithymocyte globulin Drug: Daclizumab or basiliximab Drug: Sirolimus Drug: Tacrolimus Drug: Etanercept |
Phase II |
Study Type: | Interventional |
Study Design: | Treatment, Non-Randomized, Open Label, Uncontrolled, Single Group Assignment, Safety/Efficacy Study |
Official Title: | Peritransplant Deoxyspergualin in Islet Transplantation in Type 1 Diabetes |
Estimated Enrollment: | 20 |
Study Start Date: | October 2006 |
Estimated Study Completion Date: | January 2011 |
Estimated Primary Completion Date: | May 2010 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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1: Experimental
Participants in this study will receive up to three separate islet transplants. They will begin receiving antithymocyte globulin (ATG) and sirolimus 2 days prior to the first islet transplant. ATG will continue to be given until Day 2 post-transplant. Participants will continue taking sirolimus for the duration of the study. On the day of transplant, participants will receive DSG and etanercept, in addition to ATG and sirolimus. The DSG infusion will be administered over 3 hours and will immediately precede the islet transplant. Participants will continue receiving daily 3-hour infusions of DSG through Day 9 post-transplant. Etanercept will also be administered on Days 3, 7, and 10 post-transplant. Tacrolimus will be administered on Day 1 post-transplant and continued throughout the study.
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Procedure: Islet transplant
transplant of islet cells from a healthy pancreas
Drug: Deoxyspergualin
An anti-inflammatory agent that blocks proinflammatory cytokine production and inhibits T-cells and B-cells and affects antigen presenting cells.
Drug: Antithymocyte globulin
Immunosuppressive that selectively depletes activated T-cells and depletes resting T-cells in a dose-dependent manner.
Drug: Daclizumab or basiliximab
Will replace antithymocyte globulin in all islet transplantations after the first one
Drug: Sirolimus
Maintenance immunosuppressive therapy
Drug: Tacrolimus
Maintenance immunosuppressive therapy
Drug: Etanercept
Blocks TNF-alpha which is toxic to islet cells
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Type 1 diabetes, also known as insulin-dependent diabetes, is a chronic disease in which the pancreas produces insufficient insulin to properly regulate blood sugar levels. Hypoglycemia, low blood sugar, and hyperglycemia, high blood sugar, can lead to significant complications in people with type 1 diabetes. Intensive insulin therapy has been shown to reduce the risk of chronic complications in people who achieve near normalization of glycemia. However, this therapy is labor intensive, difficult to implement, and associated with an increased frequency of severe hypoglycemia. Transplantation of islets from a healthy pancreas has been successful in restoring normal blood sugar levels and has led to initial insulin independence in people with type 1 diabetes. Rejection of these islets by the recipient's immune system, however, makes the treatment ineffective within a couple of years. Immunosuppressant drugs may be an effective way to maintain islet function post-transplant. The purpose of this study is to assess the safety and efficacy of an immunosuppressive regimen that includes DSG on post-transplant islet function in people with type 1 diabetes who have not responded to intensive insulin therapy. The study will also seek to improve the understanding of determinants of success and failure of islet transplants for type 1 diabetes.
Following screening procedures and 2 days prior to islet transplant, participants will be randomly assigned to either this Phase 2 trial or a multicenter Phase 3 trial. Participants in this study will receive up to three separate islet transplants. They will begin receiving antithymocyte globulin (ATG) and sirolimus 2 days prior to the first islet transplant. ATG will continue to be given until Day 2 post-transplant. Participants will continue taking sirolimus for the duration of the study. On the day of transplant, participants will receive DSG and etanercept, in addition to ATG and sirolimus. The DSG infusion will be administered over 3 hours and will immediately precede the islet transplant. Participants will continue receiving daily 3-hour infusions of DSG through Day 9 post-transplant. Etanercept will also be administered on Days 3, 7, and 10 post-transplant. Tacrolimus will be administered on Day 1 post-transplant and continued throughout the study.
Transplantations will involve an inpatient hospital stay and infusion of islets into a branch of the portal vein. Participants who do not achieve or maintain insulin independence by Day 75 post-transplant will be considered for a second islet transplant. Participants who remain dependent on insulin for longer than 1 month after the second transplant and who show partial graft function will be considered for a third transplant. Daclizumab or basiliximab will be used in place of ATG for the second and third transplants, if they are necessary. Participants who do not meet the criteria for a subsequent transplant and do not have a functioning graft will enter a reduced follow-up period.
There will be up to 21 study visits following each transplant. A physical exam, review of adverse events, blood collection, urine tests, and measures of immunosuppression levels will occur at most visits. An abdominal ultrasound and glomerular filtration rate testing will occur at some study visits. Participants will also self-test their glucose levels at least five times per day throughout the study. A 12-month follow-up period will take place after the participant's last transplant.
Ages Eligible for Study: | 18 Years to 65 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Involvement of intensive diabetes management, defined as:
Exclusion Criteria:
Severe coexisting cardiac disease, characterized by any one of the following conditions:
Any medical condition that, in the opinion of the investigator, might interfere with safe participation in the trial
United States, California | |
University of Californinia, San Francisco | Not yet recruiting |
San Francisco, California, United States, 94143 | |
Contact: Debbie Ramos, RN, BSN 415-353-8615 ramosd@surgery.ucsf.edu | |
Principal Investigator: Peter Stock, MD, PhD | |
United States, Illinois | |
Northwestern University | Recruiting |
Chicago, Illinois, United States | |
Contact: Elyse Stuart, RN, CCRC 312-503-1060 e-stuart@northwestern.edu | |
Principal Investigator: Dixon Kaufman, MD, PhD | |
United States, Minnesota | |
University of Minnesota | Recruiting |
Minneapolis, Minnesota, United States | |
Contact: Jayne Pederson 612-624-8402 peder059@umn.edu | |
Principal Investigator: Bernhard Hering, MD |
Responsible Party: | DAIT/NIAID ( Associate Director, Clinical Research Program ) |
Study ID Numbers: | DAIT CIT-03 |
Study First Received: | February 9, 2007 |
Last Updated: | November 11, 2008 |
ClinicalTrials.gov Identifier: | NCT00434850 |
Health Authority: | United States: Food and Drug Administration |
Insulin dependence Hypoglycemia Hyperglycemia unawareness |
Sirolimus Metabolic Diseases Autoimmune Diseases Daclizumab Gusperimus Diabetes Mellitus Endocrine System Diseases Tacrolimus TNFR-Fc fusion protein Hypoglycemia |
Pancrelipase Insulin Antilymphocyte Serum Basiliximab Hyperglycemia Diabetes Mellitus, Type 1 Endocrinopathy Glucose Metabolism Disorders Metabolic disorder |
Anti-Inflammatory Agents Radiation-Protective Agents Immune System Diseases Immunologic Factors Antineoplastic Agents Physiological Effects of Drugs Gastrointestinal Agents Antibiotics, Antineoplastic Immunosuppressive Agents Protective Agents |
Pharmacologic Actions Hypoglycemic Agents Sensory System Agents Analgesics, Non-Narcotic Therapeutic Uses Anti-Inflammatory Agents, Non-Steroidal Peripheral Nervous System Agents Analgesics Antirheumatic Agents Central Nervous System Agents |