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Sponsored by: |
National Institute of Allergy and Infectious Diseases (NIAID) |
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Information provided by: | National Institute of Allergy and Infectious Diseases (NIAID) |
ClinicalTrials.gov Identifier: | NCT00014911 |
The purpose of this study is to test whether the islet cell transplantation procedures and results from a previous study in Edmonton, Canada, can be repeated. The study also is designed to learn more about diabetes control using islet cell transplantation. This is a Phase I/II study (a study that examines effectiveness and looks for side effects). The transplanting of islet cells has been studied in Type 1 diabetic patients whose blood sugar levels will not stay normal, despite intensive insulin therapy. A recent study conducted in Edmonton, Canada, was able to demonstrate that islet transplantation led to insulin independence in a majority of the patients treated. This study extends the results obtained from the Edmonton study, which used islet transplantation in Type 1 diabetic patients with steroid-free immunosuppression.
Condition | Intervention | Phase |
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Diabetes Mellitus, Insulin-Dependent |
Procedure: Islet cells infusion Drug: Sirolimus Drug: Tacrolimus Drug: Daclizumab Drug: Sulfamethoxazole Drug: Ganciclovir Drug: Trimethoprim Drug: Pentamidine |
Phase II |
Study Type: | Interventional |
Study Design: | Treatment, Open Label, Single Group Assignment |
Official Title: | Islet Transplantation for Type 1 Diabetic Patients Using the Edmonton Protocol of Steroid Free Immunosuppression |
Estimated Enrollment: | 40 |
Study Start Date: | April 2001 |
Estimated Primary Completion Date: | June 2005 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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A: Experimental
All study participants
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Procedure: Islet cells infusion
A target total of greater than or equal to 10,000 IE (islet equivalent) per kilogram of the recipient's body weight will be infused into the portal vein with a precutaneous tranhepatic catheter. Up to three transplants are possible depending on individual results.
Drug: Sirolimus
Administered orally at a loading dose of 0.2 mg/kg daily, immediately pre-transplant and continued at a dose of 0.1 mg/kg daily each morning. Three months after the most recent transplant the dose will be changed to 12-15ng/mL. After three months following the last transplant the dose will again change to 7-10 ng/mL.
Drug: Tacrolimus
Administered orally at a dose of 1 mg, given immediately before transplantation, and continued at a dose of 1 mg twice daily. When possible the dose will be changed to 3-6ng/mL and will remain at this level for the remainder of the study.
Drug: Daclizumab
Administered at a dose of 1 mg/kg via peripheral IV and given immediately before transplantation.Additionally administered at weeks 2, 4, 6, and 8 following transplantation, totaling 5 doses (over 8 weeks). Further daclizumab dosing may be necessary based on individual results and transplantation needs.
Drug: Sulfamethoxazole
An antibacterial used to prevent opportunistic infections
Drug: Ganciclovir
An antiviral used to kill viruses and stop viral replication
Drug: Trimethoprim
An antibacterial used to prevent opportunistic infections
Drug: Pentamidine
An antiprotozoal used to prevent disease
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This is a Phase I/II study (a study that examines effectiveness and looks for side effects). The transplanting of islet cells has been studied in Type 1 diabetic patients whose blood sugar levels will not stay normal, despite intensive insulin therapy. A recent study conducted in Edmonton, Canada, was able to demonstrate that islet transplantation led to insulin independence in a majority of the patients treated. This study extends the results obtained from the Edmonton study, which used islet transplantation in Type 1 diabetic patients with steroid-free immunosuppression.
Eligible patients were randomly selected from the total pool of people who applied through the Immune Tolerance Network. Patients will receive at least 10,000 "islet equivalents" per kilogram (2.2 pounds) of body weight. This likely will require 2 separate islet infusions from 2 separate donors. Immediately before the first transplant, patients will be given anti-rejection (immune suppressing) drugs, including tacrolimus and sirolimus (orally) and daclizumab (intravenously). The islets will be infused into the liver through a tube placed in the portal vein. Heparin (a medication to prevent blood clots) will be administered with the islet infusion. A longer-acting form of heparin will also be given by daily injections during the next week after each transplant.
After surgery, patients will receive insulin intravenously for 24 hours. Patients will have an abdominal ultrasound and blood tests to determine liver function. If fewer than 10,000 islets were transplanted, patients will continue insulin treatment, with the dosages adjusted if necessary to account for the transplanted islets.
They will take daclizumab every 2 weeks for 8 weeks and tacrolimus and sirolimus daily. Patients will be given antibiotics to prevent infections. Blood tests to see how much immunosuppressant drug is in the blood will be performed until the drug is at a stable level. Periodically there will be tests to see if the islet cells are functioning. Blood will be drawn to check drug levels and for other tests routinely. Daily insulin requirements will be checked, and these will be recorded monthly. Patients will be followed for at least 1 year post final transplant. Additional follow-up may be provided at least annually for up to 5 years.
Ages Eligible for Study: | 18 Years to 65 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria
Patients may be eligible for this study if they:
Exclusion Criteria
Patients will not be eligible for this study if they:
Responsible Party: | DAIT/NIAID ( Associate Director, Clinical Research Program ) |
Study ID Numbers: | DAIT NIS01 |
Study First Received: | April 13, 2001 |
Last Updated: | September 26, 2008 |
ClinicalTrials.gov Identifier: | NCT00014911 History of Changes |
Health Authority: | United States: Federal Government |
Sirolimus Anti-Infective Agents Trimethoprim Immunologic Factors Folate Diabetes Mellitus Type 1 Tacrolimus Vitamin B9 Anti-Bacterial Agents Antimalarials Antifungal Agents Pentamidine Metabolic Disorder Autoimmune Diseases Metabolic Diseases |
Sulfamethoxazole Daclizumab Diabetes Mellitus Endocrine System Diseases Ganciclovir Anti-Infective Agents, Urinary Folinic Acid Folic Acid Antagonists Antiviral Agents Immunosuppressive Agents Folic Acid Diabetes Mellitus, Type 1 Endocrinopathy Glucose Metabolism Disorders |
Anti-Infective Agents Trypanocidal Agents Trimethoprim Antiprotozoal Agents Immunologic Factors Molecular Mechanisms of Pharmacological Action Physiological Effects of Drugs Tacrolimus Renal Agents Antimalarials Antiparasitic Agents Therapeutic Uses Antifungal Agents Pentamidine Autoimmune Diseases |
Metabolic Diseases Sulfamethoxazole Immune System Diseases Daclizumab Diabetes Mellitus Endocrine System Diseases Enzyme Inhibitors Ganciclovir Anti-Infective Agents, Urinary Folic Acid Antagonists Immunosuppressive Agents Antiviral Agents Pharmacologic Actions Diabetes Mellitus, Type 1 Glucose Metabolism Disorders |