NCT00006505

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
6

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Nov 2000

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 16, 2000

Completed
1 day until next milestone

First Submitted

Initial submission to the registry

November 17, 2000

Completed
3 days until next milestone

First Posted

Study publicly available on registry

November 20, 2000

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2002

Completed
17.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

April 21, 2020

Completed
Last Updated

April 20, 2021

Status Verified

April 1, 2021

Enrollment Period

1.6 years

First QC Date

November 17, 2000

Last Update Submit

April 19, 2021

Conditions

Keywords

Islet IsolationDiabetes

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

EXPERIMENTAL

Islet cell transplantation

Drug: Islet 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

Transplant

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

Location

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: 4200461BACKGROUND
  • Ballinger WF, Lacy PE. Transplantation of intact pancreatic islets in rats. Surgery. 1972 Aug;72(2):175-86. No abstract available.

    PMID: 4262169BACKGROUND
  • Diabetes 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: 8366922BACKGROUND
  • Perl 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.

  • Liu 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.

Related Links

MeSH Terms

Conditions

Diabetes Mellitus, Type 1Diabetes Mellitus

Interventions

Islets of Langerhans Transplantation

Condition Hierarchy (Ancestors)

Glucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesAutoimmune DiseasesImmune System Diseases

Intervention Hierarchy (Ancestors)

Cell TransplantationCell- and Tissue-Based TherapyBiological TherapyTherapeuticsEndocrine Surgical ProceduresSurgical Procedures, OperativeTransplantation

Study Officials

  • Ranganath Muniyappa, M.D.

    National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

    PRINCIPAL INVESTIGATOR

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

Locations