- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01241864
Islet Transplantation in Type 1 Diabetic Kidney Allograft
February 2, 2024 updated by: University of Chicago
The purpose of this study is to learn about the safety of islet transplantation when performed after kidney transplantation, which may provide more normal control of blood sugar without the need for insulin shots.
Islets are special clusters of cells within the pancreas that produce insulin.
These cells will be obtained from cadaver (non-living) donors and given to subjects by vein.
Study Overview
Status
Recruiting
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Estimated)
10
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Lindsay Basto, RN, BSN
- Phone Number: 773-702-2504
- Email: Lindsay.Basto@uchospitals.edu
Study Contact Backup
- Name: Piotr Witkowski, MD, PhD
- Phone Number: (773) 702-2447
- Email: pwitkowski@surgery.bsd.uchicago.edu
Study Locations
-
-
Illinois
-
Chicago, Illinois, United States, 60637
- Recruiting
- The University Of Chicago
-
Principal Investigator:
- Piotr Witkowski, MD, PhD
-
Contact:
- Lindsay Basto, RN, BSN
- Phone Number: 773-702-2504
- Email: Lindsay.Basto@uchospitals.edu
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 68 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- Male and female subjects age 18 to 68 years.
- Subjects who are able to provide written informed consent and to comply with the procedures of the study protocol.
- Clinical history compatible with T1D with disease onset < 40 years of age and insulin-dependence for > 5 years at the time of enrollment, and a sum of subject age and insulin dependent diabetes duration of > 28.
- Absent stimulated c-peptide (< 0.3 ng/mL) in response to a MMTT [Boost® 6 mL/kg body weight (BW) to a maximum of 360 mL; another product with equivalent caloric and nutrient content may be substituted for Boost®] measured at 60 and 90 min after start of consumption.
- Subjects who are > or at 3 months post-renal transplant who are taking appropriate calcineurin inhibitor (CNI) based maintenance immunosuppression ([tacrolimus alone or in conjunction with sirolimus, mycophenolate mofetil, myfortic, or azathioprine; or cyclosporine in conjunction with sirolimus, mycophenolate mofetil, or myfortic] ± Prednisone < 10 mg/day)or subject will receive islets transplant within 72hours after kidney transplantation (islets and kidney are from the same donor)
- Stable renal function as defined by a creatinine of no more than one third greater than the average creatinine determination performed in the 3 previous months prior to islet transplantation, until rejection, obstruction or infection is ruled out.
Exclusion Criteria:
- Weight more than 90 kg or body mass index (BMI) > 30 kg/m2.
- Insulin requirement of >1.0 IU/kg/day or <15 U/day.
- Other (non-kidney) organ transplants except prior failed pancreatic graft where the graft failed within the first two weeks due to thrombosis, followed by pancreatectomy; with the pancreas transplant occurring more than 6 months prior to enrollment.
- Untreated or unstable proliferative diabetic retinopathy.
- Blood Pressure: SBP > 160 mmHg or DBP >100 mmHg despite treatment with antihypertensive agents.
- Calculated GFR < 40 mL/min/1.73 m2 using the subject's measured serum creatinine and the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation [1]. Strict vegetarians (vegans) will be excluded only if their estimated GFR is < 35 mL/min/1.73 m2
- Proteinuria (albumin/ creatinine ratio or ACr > 300mg/g) of new onset since kidney transplantation.
- Either Class I or Class II panel-reactive anti-HLA antibodies > 50%. Subjects with either Class I or Class II panel reactive anti-HLA antibodies >50% will be excluded if any of the following are detected: Positive cross-match, Islet donor-directed anti-HLA antibodies detected by Luminex Single Antigen/specificity bead assay including weakly reactive antibodies that would not be detected by a flow cross-match, or Antibodies to the renal donor (i.e. presumed de novo).
- For female subjects: Positive pregnancy test, presently breast-feeding, desires to be pregnant at any time point in the future, which includes during or after the completion of the study even if study participation is ended early, or unwillingness to use effective contraceptive measures for the duration of the study and 4 months after discontinuation. For male subjects: intent to procreate during the duration of the study or within 4 months after discontinuation or unwillingness to use effective measures of contraception. Oral contraceptives, Norplant®, Depo-Provera®, and barrier devices with spermicide are acceptable contraceptive methods; condoms used alone are not acceptable.
- Presence or history of active infection including hepatitis B, hepatitis C, HIV, or tuberculosis (TB). Subjects with laboratory evidence of active infection are excluded even in the absence of clinical evidence of active infection.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Allogenic islet cells (human, U. Chicago)
|
Human allogenic islet cells.
Immunosuppression varies but may include prograf, cellcept, sirolimus, prednisone.
Dosage will vary per patient based on weight.
Patients will receive immunosuppression medications while islet cells are functioning.
Intraportal infusion of islet cell through the portal vein in the liver.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
HbAlc <6.5% and an absence of severe hypoglycemic events
Time Frame: 1 year after transplantation
|
The proportion of subjects with both an HbAlc <6.5% and an absence of severe hypoglycemic events at 1 year after the first islet transplant or a reduction in HbAlc of at least 1 point and an absence of severe hypoglycemic events at 1 year after the first islet transplant.
|
1 year after transplantation
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
HbAlc < 6.5% and an absence of severe hypoglycemic events measured after last transplant
Time Frame: 365 ± 14 days after the last islet transplant
|
The primary endpoint measured at one year after the last islet transplant.
That is the proportion of subjects with both an HbAlc < 6.5% and an absence of severe hypoglycemic events at 1 year after the last islet transplant or a reduction in HbAlc of 1 point and an absence of severe hypoglycemia at 1 year after the last islet transplant.
|
365 ± 14 days after the last islet transplant
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
December 1, 2010
Primary Completion (Estimated)
December 1, 2025
Study Completion (Estimated)
December 1, 2025
Study Registration Dates
First Submitted
November 12, 2010
First Submitted That Met QC Criteria
November 15, 2010
First Posted (Estimated)
November 16, 2010
Study Record Updates
Last Update Posted (Estimated)
February 5, 2024
Last Update Submitted That Met QC Criteria
February 2, 2024
Last Verified
February 1, 2024
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 10-479-A
- BB-IND 11228
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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