Overview

This trial is active, not recruiting.

Condition diabetes mellitus
Treatments islet transplantation + immunosuppression, islet cell transplantation
Phase phase 1
Sponsor City of Hope Medical Center
Collaborator National Institutes of Health (NIH)
Start date January 2002
End date March 2016
Trial size 20 participants
Trial identifier NCT00706420, 01083, RR-01-002

Summary

The purpose of this study is to evaluate the safety and effectiveness of islet cell transplantation alone (ITA) in patients with difficult to control type I diabetes. Difficult to control type 1 diabetes is defined as wide swings in blood glucose that disrupt the patient's life and result in frequent episodes of low blood glucose despite the proper use of standard insulin therapy and frequent blood glucose monitoring.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Allocation non-randomized
Endpoint classification safety/efficacy study
Intervention model single group assignment
Masking open label
Primary purpose treatment
Arm
(Experimental)
Islet cell transplantation alone
islet transplantation + immunosuppression
Islet Transplantation + Immunosuppression (Sirolimus/Tacrolimus, daclizumab)
islet cell transplantation
Islet cell transplantation will occur through the portal vein.

Primary Outcomes

Measure
Percent of subjects who have achieved insulin independence post transplant.
time frame: 3, 6, 12, and 24 months

Secondary Outcomes

Measure
Stimulated C-peptide response >0.6 ng/ml
time frame: 3, 6, 12, and 24 months
Insulin use </=0.2units/kg/day
time frame: 3, 6, 12, and 24 months
Reduction/elimination of hypoglycemic episodes
time frame: 3, 6, 12, and 24 months
HgAlc</= 6.5%
time frame: 3, 6, 12, and 24 months

Eligibility Criteria

Male or female participants from 18 years up to 65 years old.

Inclusion Criteria: - Difficult to control Type 1 diabetes mellitus (defined above). Documentation of negative basal and stimulated C-peptide (a basal level of < 0.2 ng/ml before IV administration of 1 mg of glucagon, and a glucagon stimulated C-peptide < 0.8 ng/ml) and diagnosis of diabetes for at least 5 years. When possible, patients will be evaluated with continuous glucose monitoring (GlucoseSensor ®) to determine the frequency and extent of hypo- and hyperglycemic episodes. - No evidence of chronic renal failure or significant proteinuria (serum creatinine < 1.6 mg/dl, creatinine clearance >80 ml/min, and albumin excretion 3.5 g/dl, and PT and PTT twice the upper limit of normal for each of ALT and AST, bilirubin > 2 mg/dl, albumin < 3.5 g/dl, liver masses, portal vein thrombosis, evidence of portal hypertension, or significant, untreated gallbladder disease (i.e. gallstones). - Significant cardiovascular disease, including non-correctable coronary artery disease with ejection fraction < 50% and/or recent myocardial infarction (within last 12 months); extensive peripheral vascular disease not correctable by surgery or untreated proliferative retinopathy. - Recent unresolved acute infection, or chronic infection, including tuberculosis, HIV, HBV, HCV, CMV or positive skin test for TB. - Any history of malignancy, except squamous or basal skin cancer or in situ cancer of the cervix. - Recent history of non-compliance, or inability to demonstrate capacity to comply with strict blood glycemic control and insulin pump therapy. - Psychiatric illness that is untreated, or likely to interfere significantly with transplantation despite treatment. - Presence of preformed antibodies on panel reactive antibody screening > 20%. - Body mass index (BMI) greater than 30. - Age less than 18 years or greater than 65 years. - Presence of a chronic disease that must be chronically treated with one or more of the following medications: glucocorticoids, diazoxide, bumetanide, haloperidol, chlorpromazine, desipramine, doxepin, imipramine, isoproterenol, levodopa, morphine, L-asparaginase, cyclophosphamide, isoniazid, heparin, nalidixic acid, or any other agents that may adversely influence glycemic control and which may confound the interpretation of Graft Success post-transplant. - Pregnant women, women intending future pregnancy, women of reproductive potential who are unable or unwilling to follow effective contraceptive measures for the duration of immunosuppressive therapy, and women presently breast feeding are ineligible due to the unknown effects of these drugs on the fetus and nursing infant. - Active alcohol or substance abuse, including cigarette smoking (must be abstinent for > 3 months). - Hyperlipidemia (total cholesterol > 260 mg/dl, LDL > 130 mg/dl, and/or triglycerides > 300 mg/dl) despite appropriate treatment. - Anemia (Hgb < 12 g/dl) or other hematologic disorders that require medical attention. - Increased risk of bleeding (platelet count < 80,000; INR > 1.5), other chronic hemostasis disorders, or treatment with chronic anticoagulant therapy (i.e. heparin or warfarin).

Additional Information

Official title Islet Transplantation Alone (ITA) in Patients With Difficult to Control Type I Diabetes Mellitus Using a Glucocorticoid-free Immunosuppressive Regimen
Principal investigator Fouad Kandeel, MD
Description Type 1 diabetes is associated with the damage of a specific cell subtype of pancreatic islets (clusters of cells in the pancreas that produce insulin and other metabolic hormones), which makes patients depend on an outside source of insulin. Despite insulin treatment, type 1 diabetes mellitus causes a significant risk of long-term problems, including damage to the heart, blood vessels, nerves, eyes and kidneys. The results of recent research studies suggest that these complications are caused by poor glucose control. Transplantation of islets offers the prospect of good glycemic (blood glucose) control without the major surgical risks associated with whole pancreas transplant and may result in not needing any insulin injections. In 2000, a group of investigators in Edmonton, Canada showed that islet transplantation using a combination of anti-rejection drugs to help prevent the rejection of transplanted islets was effective in eliminating insulin intake in 7 subjects who were followed up to 20 months. After 5 years, more than 60 patients have been transplanted at Edmonton and only 1 in 10 remained off of insulin. This study is being performed to confirm the results of the Edmonton study to see if islet transplantation alone (ITA) is a safe and effective way of treating subjects with type 1 diabetes. This study uses a few additional medications and vitamin supplements that were not included in the original Edmonton study. We hope this will improve the long-term outcome of islet transplantation.
Trial information was received from ClinicalTrials.gov and was last updated in March 2015.
Information provided to ClinicalTrials.gov by City of Hope Medical Center.