NCT00579371

Brief Summary

We hypothesize that the following improvements to islet transplantation will increase the islet mass successfully isolated and allow for engraftment from a single pancreas. The improvements are:

  • Using Two-Layer method preservation to improve pancreas quality before islet isolation
  • Maintaining isolated islets in culture before transplantation
  • Using a steroid-free immunosuppression regimen
  • Transplanting the best combination of donor and recipient possible after human leukocyte antigens (HLA) screening and final crossmatching

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
30

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Mar 2004

Longer than P75 for phase_1

Geographic Reach
1 country

1 active site

Status
terminated

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

March 17, 2004

Completed
3.8 years until next milestone

First Submitted

Initial submission to the registry

December 17, 2007

Completed
7 days until next milestone

First Posted

Study publicly available on registry

December 24, 2007

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2011

Completed
Last Updated

December 21, 2023

Status Verified

December 1, 2023

Enrollment Period

7 years

First QC Date

December 17, 2007

Last Update Submit

December 20, 2023

Conditions

Keywords

islet transplantationtype 1 diabetes mellitussteroid-free immunosuppressionrabbit anti-thymocyte globulin

Outcome Measures

Primary Outcomes (1)

  • Incidence of insulin independence with a single islet transplant

    Incidence of insulin independence with a single transplantation measured at one year post-transplantation.

    1 year post-transplantation

Secondary Outcomes (3)

  • Islet mass resulting in insulin independence/reduced exogenous insulin requirement

    1 year post-transplantation

  • Graft survival

    3 years post-transplantation

  • Metabolic functional assessments of the islet graft

    3 years post-transplantation

Study Arms (1)

Transplantation of Islets of Langerhans

EXPERIMENTAL

Subjects will receive islets isolated from one donor pancreas per transplantation event. Subjects will receive a cumulative dose of 8,000 International Units/kg. Islets will be infused intraportally. If necessary, additional transplantation events will be performed.

Drug: Islets of Langerhans

Interventions

Subjects will receive islets isolated from one donor pancreas per transplantation event. Subjects will receive a cumulative dose of 8,000IE/kg. Islets will be infused intraportally. If necessary, additional transplantation events will be performed.

Also known as: transplanted islets of Langerhans
Transplantation of Islets of Langerhans

Eligibility Criteria

Age19 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Group 1: Diagnosis of Type-1 diabetes mellitus for more than 5 years with at least one of the following complications:
  • Metabolic lability/instability (two or more episodes of severe hypoglycemia) or two or more hospital visits for diabetic ketoacidosis during the previous year
  • Progression of secondary complications of diabetes as determined by The Nebraska Medical Center/University of Nebraska Medical Center staff endocrinologists
  • Group 2: Diagnosis of Type-1 diabetes with successful renal transplant on steroid-free, FK506/rapamycin-based immunosuppression

You may not qualify if:

  • Severe co-existing cardiac disease
  • Active alcohol or substance abuse, including cigarette smoking
  • Psychiatric disorder making the subject not a suitable candidate for transplantation
  • History of medical non-compliance
  • Active infection, including hepatitis C and B, HIV, and tuberculosis (or suspected tuberculosis)
  • Any history of malignancy except squamous or basal cell skin cancer
  • BMI \>28 kg/meter-squared, or body weight \>80kg at screening visit, or \>85kg on the day of transplantation (due to the difficulty of obtaining a sufficiently large islet mass to adequately treat either large patients or those whose obesity elevates their insulin needs)
  • Positive C-peptide response to intravenous glucose tolerance test and Mixed Meal glucose tolerance test: any C-peptide \>0.3 ng/mL post infusion
  • Inability to provide informed consent
  • Age less than 19 or greater than 70 years
  • Creatinine clearance \<60 mL/min/1.73 meter-squared for Group 1 and creatinine clearance \<40 mL/min/1.73 meter-squared for Group 2 (those subjects currently on immunosuppression due to previous kidney transplant)
  • Macroalbuminuria (urinary albumin excretion rate \>300 mg/24h) for Group 1 and macroalbuminuria (urinary albumin excretion rate \>600mg/24h) for Group 2
  • Baseline Hb \<10 gm/dL
  • Baseline liver function tests outside of normal range
  • Presence of gallstones or hemangioma in liver on baseline ultrasound exam
  • +10 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Nebraska Medical Center

Omaha, Nebraska, 68198, United States

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 1

Interventions

Islets of Langerhans Transplantation

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose 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

  • R Brian Stevens, MD PhD

    University of Nebraska

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 17, 2007

First Posted

December 24, 2007

Study Start

March 17, 2004

Primary Completion

March 1, 2011

Study Completion

March 1, 2011

Last Updated

December 21, 2023

Record last verified: 2023-12

Locations