Solitary Islet Transplantation for Type 1 Diabetes Mellitus Using Steroid Sparing Immunosuppression
2 other identifiers
interventional
6
1 country
1
Brief Summary
This study will test whether a new islet transplant procedure will enable patients with type 1 diabetes mellitus to stop insulin therapy. Islets are cell clusters in the pancreas that contain insulin-producing cells. The new procedure features three important advances, first developed by a group in Edmonton, Canada, over the way islet transplants have traditionally been performed: 1) the islets are transplanted immediately after they are removed from the donor; 2) islets are transplanted from two different donors in order to obtain the number of islets in a normal pancreas; and 3) the anti-rejection drug regimen is designed to reduce the harmful side effects of "conditioning" chemotherapy. (In the standard transplant procedure, patients receive intensive chemotherapy following the transplant. This study will use no radiation and lower-dose chemotherapy.) Patients between the ages of 18 and 65 with the diagnosis of type 1 diabetes mellitus for at least 5 years may be eligible for this study. Candidates will be screened with a medical history and physical examination, blood tests, chest X-ray and tuberculin skin test, electrocardiogram and exercise test for heart function, abdominal ultrasound, psychological evaluation, and an arginine stimulated c-peptide test. The latter test determines if the patient is producing any insulin. Eligibility is restricted to patients who make no insulin at all. The study has an active phase lasting 15 months and follow-up that continues indefinitely. Patients will receive 10,000 "islet equivalents" per kilogram (2.2 pounds) of body weight. This will likely require two separate transplant procedures from two donors. Before the first surgery, patients will be given anti-rejection (immune suppressing) drugs, including FK506 and rapamycin (orally) and daclizumab (intravenously). The islets will be infused through a tube placed in the portal vein (the large vein that feeds the liver). After surgery, patients will receive insulin intravenously for 24 hours. They will then 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 to account for the transplanted islets. They will take Daclizumab every 2 weeks, and FK506 and rapamycin daily. Blood tests to follow how much of these drugs are in the blood stream will be performed daily at first and then weekly after blood levels of these drugs stabilize. They will be given antibiotics to prevent infections. The arginine test will be repeated 2 weeks after the transplant and periodically thereafter. Blood will be drawn weekly to check drug levels, and monthly for other tests. The investigators will track daily insulin requirements, and these will be recorded monthly. Patients who require a second transplant to achieve the required amount of islets will return for the procedure when a compatible organ is donated. The second procedure will be done as described above. As before, insulin will be infused for 24 hours following surgery. It will then be stopped, however, and will not be resumed unless blood glucose levels reach above 180 milligrams/deciliter. Patients will continue taking FK506 and rapamycin indefinitely. Daclizumab will be given every 2 weeks for 4 doses following the second transplant, and then stopped. Patients will take an antiviral called ganciclovir for 14 weeks and another antibiotic for 1 year following surgery. For the first year after surgery, patients will have frequent blood tests to monitor drug levels and immune function. They will return to NIH for a complete history and physical examination 2 and 3 years after the final islet transplant and will be contacted yearly by phone to ascertain their general health status and whether they remain insulin independent.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Nov 2000
Longer than P75 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 16, 2000
CompletedFirst Submitted
Initial submission to the registry
November 17, 2000
CompletedFirst Posted
Study publicly available on registry
November 20, 2000
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2002
CompletedStudy Completion
Last participant's last visit for all outcomes
April 21, 2020
CompletedApril 20, 2021
April 1, 2021
1.6 years
November 17, 2000
April 19, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Insulin independence
To reproduce and improve upon a pilot series of clinical islet transplants from Edmonton, using steroid free immunosuppression in conjunction with defined isolation, characterization and transplantation protocols. The study will determine the number of patients receiving an islet allotransplant who are insulin independent at 1 year post-transplant of at least 10,000 IEQ/kg body weight.
every three months
Secondary Outcomes (4)
Islet cell survival
every 3 months
Immune mediated beta cell destruction
every 3 months
Glomerular filtration rate
every 3 months
change in lipid profiles
every 3 months
Study Arms (1)
Transplant
EXPERIMENTALIslet cell transplantation
Interventions
Islet cell transplantation. This study will test whether a new islet transplant procedure will enable patients with type 1 diabetes mellitus to stop insulin therapy
Eligibility Criteria
You may qualify if:
- Patients with T1DM for at least 5 years will be eligible for the study provided they exhibit one of the following:
- Hypoglycemia unawareness, as defined by inability to sense hypoglycemia until the blood glucose falls to less than 54 mg/dl or greater than one hypoglycemia reaction in the preceding 20 months and that required outside help and was not explained by a clear precipitant;
- Metabolic instability, as defined by: a) recurrent hypoglycemic or ketoacidotic events requiring more than two hospitalization within the preceding 12 months, b) disruption in quality of life or direct potential danger to the patient or others around them, with more than two hospital admissions or more than four weeks off school or work, or where the individual is no longer able to provide essential care for others; or
- Evidence of early but progressive secondary diabetic complications but which have not progressed to end-stage renal failure
- Failure of intensive insulin management, as judged by an endocrinologist independent of study investigators
You may not qualify if:
- Significant cardiac disease as defined by: a) a history of a myocardial infarction with the past 6 months or b) coronary angiographic evidence of non-correctable arteriopathy, or c) evidence of ischemia on a functional cardiac examination
- Active alcoholism or other substance abuse (including cigarette smoking) within the past 6 months
- Failure to clear a psychological or psychiatric screen (as assessed by psychological or psychiatric consultation)
- A history of non-adherence. If adherence has been questionable, then an adherence agreement must be entered and compliance demonstrated for at least 3 months
- Active infection including hepatitis B or C, HIV positivity, a positive Mantoux test (unless previously immunized with BCG), or any X-ray evidence of pulmonary infection
- History of malignancy except squamous and basal cell skin cancer, unless disease free for at least 5 years, and cleared by an independent oncological consultation
- Obesity (defined by a body mass index of greater than 28) or total body weight greater than 75 kilograms
- C-peptide values greater than or equal to 0.3 pm/ml following a 5.0 gram intravenous arginine infusion
- Inability to provide informed consent
- Age less than 18 or older than age 65
- Creatinine clearance of less than 60 ml/min/m2, or macroalbuminuria of greater than 300 mg/24h
- Baseline Hb of less than 12 g/dl in women, or less than 13 g/dl in men
- WBC count of less than 3,000/mm(3) or a platelet count of less than 100,000/mm(3)
- Baseline LFTs outside of normal range
- Presence of gallstones, liver hemangioma, or evidence of portal hypertension on baseline U/S
- +8 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, 20892, United States
Related Publications (5)
Kemp CB, Knight MJ, Scharp DW, Lacy PE, Ballinger WF. Transplantation of isolated pancreatic islets into the portal vein of diabetic rats. Nature. 1973 Aug 17;244(5416):447. doi: 10.1038/244447a0. No abstract available.
PMID: 4200461BACKGROUNDBallinger WF, Lacy PE. Transplantation of intact pancreatic islets in rats. Surgery. 1972 Aug;72(2):175-86. No abstract available.
PMID: 4262169BACKGROUNDDiabetes Control and Complications Trial Research Group; Nathan DM, Genuth S, Lachin J, Cleary P, Crofford O, Davis M, Rand L, Siebert C. The effect of intensive treatment of diabetes on the development and progression of long-term complications in insulin-dependent diabetes mellitus. N Engl J Med. 1993 Sep 30;329(14):977-86. doi: 10.1056/NEJM199309303291401.
PMID: 8366922BACKGROUNDPerl S, Kushner JA, Buchholz BA, Meeker AK, Stein GM, Hsieh M, Kirby M, Pechhold S, Liu EH, Harlan DM, Tisdale JF. Significant human beta-cell turnover is limited to the first three decades of life as determined by in vivo thymidine analog incorporation and radiocarbon dating. J Clin Endocrinol Metab. 2010 Oct;95(10):E234-9. doi: 10.1210/jc.2010-0932. Epub 2010 Jul 21.
PMID: 20660050DERIVEDLiu EH, Digon BJ 3rd, Hirshberg B, Chang R, Wood BJ, Neeman Z, Kam A, Wesley RA, Polly SM, Hofmann RM, Rother KI, Harlan DM. Pancreatic beta cell function persists in many patients with chronic type 1 diabetes, but is not dramatically improved by prolonged immunosuppression and euglycaemia from a beta cell allograft. Diabetologia. 2009 Jul;52(7):1369-80. doi: 10.1007/s00125-009-1342-7. Epub 2009 May 6.
PMID: 19418039DERIVED
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Ranganath Muniyappa, M.D.
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 17, 2000
First Posted
November 20, 2000
Study Start
November 16, 2000
Primary Completion
June 30, 2002
Study Completion
April 21, 2020
Last Updated
April 20, 2021
Record last verified: 2021-04