AzTrials
AzTrials

Type 1 Diabetes MellitusPhase 2NCT00315614

Islet Cell Transplantation Alone and CD34+ Donor Bone Marrow Cell Infusion in Type 1 Diabetes Mellitus

A Phase 2 study testing Islet Transplantation and Bone Marrow in people with Type 1 Diabetes Mellitus, run by University of Miami at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
Search all trials

Trial summary

SPECIFIC AIMS: To reverse hyperglycemia and insulin dependency in patients with Type 1 diabetes mellitus by islet cell transplantation. To induce a state of donor specific tolerance and eliminate the need for continuous immunosuppressive therapy by simultaneous transplantation of donor bone marrow cells with islets… Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Type 1 Diabetes Mellitus
What is being tested?
Islet Transplantation and Bone Marrow
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
3 participants
Where
1 siteUnited States
Study dates
Dec 2000to Dec 2010
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients between 18 and 65 years of age
  • Patients with type 1 diabetes mellitus for more than 5 years duration
  • One or more of the following:
  • Hypoglycemia unawareness - judged by history of blood sugars <54 on glucometer without symptoms and/or hypoglycemic episodes requiring assistance from either family, glucagon administration or emergency services
  • Poor diabetes control (HbA1c>8% or >2 visits/yr to hospital for treatment of ketoacidosis) despite intensive insulin therapy
  • Progressive complications of type 1 diabetes mellitus
  • Body Mass Index (BMI) ≤26

Who cannot join

  • Untreated proliferative diabetic retinopathy;
  • HbA1C > 12%;
  • Insulin requirement > 1.0u/kg/d
  • Stimulated or basal C-peptide > 0.3 ng/ml
  • Creatinine clearance < 60 and/or serum creatinine consistently > 1.5mg/dl;
  • Macroalbuminuria > 300mg albumin in 24 hours
Show all 29Show fewer
  • Presence of panel reactive antibodies > 20%;
  • Previous/concurrent organ transplantation (except failed islet cell transplantation);
  • Any medical condition requiring chronic use of steroids;
  • Malignancy or previous malignancy (except non-melanomatous skin cancer);
  • X-ray evidence of pulmonary infection;
  • Active infections;
  • Positive tuberculin test (unless proof of adequate treatment for latent tuberculosis can be provided)
  • Active peptic ulcer disease,
  • Gall stones and/or portal hypertension and/or hemangioma on liver ultrasound;
  • Serological evidence of HIV, HBV (HBsAg+ and/or HBcAb+ and/or HBsAb+ without evidence of vaccination), HTLV-1 or HCV;
  • Negative serology for Epstein Barr virus (EBV) or evidence of acute infection (IgM>IgG);
  • Abnormal liver function test;
  • Anemia (hemoglobin <12.0 g/dl);
  • Hyperlipidemia (fasting total cholesterol >240mg/dl and/or fasting triglycerides >200mg/dl and/or fasting LDL cholesterol>140mg/dl);
  • Body Mass Index above 26 and/or weight >80kg;
  • Prostate specific antigen (PSA) > 4 ng/ml;
  • Unstable cardiovascular status (including positive stress echocardiography if >age 35);
  • Active alcohol or substance abuse;
  • Sexually active females who are not: a) post-menopausal, b) surgically sterile, or c) not using an acceptable method of contraception (oral contraceptives, Norplant, Depo-Provera, and barrier devices are acceptable; condoms used alone are not acceptable);
  • Positive pregnancy test or intent for future pregnancy, or male subject's intent to procreate.
  • Any condition or any circumstances that makes it unsafe to undergo an islet cell transplant.
  • History of previous transplant or previous bone marrow infusion.
  • Persistent leucopenia (white blood cell count <3,000/mm3

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Diabetes Research Institute

    Miami, Florida, 33136

Other trials in United States

About this study

Official title: Islet Cell Transplantation Alone and CD34+ Enriched Donor Bone Marrow Cell Infusion in Patients With Type 1 Diabetes Mellitus; Steroid Free Regimen

SPECIFIC AIMS:

  • To reverse hyperglycemia and insulin dependency in patients with Type 1 diabetes mellitus by islet cell transplantation.
  • To induce a state of donor specific tolerance and eliminate the need for continuous immunosuppressive therapy by simultaneous transplantation of donor bone marrow cells with islets and utilization of the monoclonal antibody Campath-1H for induction of Immunosuppression.
  • To assess long-term function of successful islet cell transplants in patients with Type 1 diabetes mellitus.
  • To determine whether the natural history of the microvascular, macrovascular and neuropathic complications are altered following successful transplantation of islet
Read the detailed description

In our current protocol (IRB #2000/0024) the immunosuppressive regimen, comprised of induction with daclizumab and maintenance therapy with sirolimus and tacrolimus, has been combined with the infusion of CD34+ enriched donor bone marrow stem cells in an attempt to create a chimeric state and hence induce donor tolerance. This strategy was tested by evaluating graft survival following the removal of all immunosuppressive medication after one year.

Being tested
Islet Transplantation and Bone Marrow
Keywords
Islet Transplantation
Medical subject headings
Diabetes Mellitus, Type 1

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Islet Transplantation and Bone MarrowBiological

    Also called Islet, type 1 DM, Bone marrow

    Islet transplantation and CD34 Bone Marrow infusion in subjects with type 1 diabetes.

Study groups in NCT00315614
Study groupRoleWhat they receive
Islet Transplantation and Bone MarrowExperimentalAdministration of islets and infusion of CD34 enriched Bone Marrow cells in subjects with type 1 diabetes, impaired awareness of hypoglycemia and severe hypoglycemia.
Receives: Biological: Islet Transplantation and Bone Marrow

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The Achievement of Persistent Islet Function Following Cessation of Immunosuppression.

    Immunosuppression was never discontinued. Patients elected to move to other trials to receive additional islet infusions. Since immunosuppression was never discontinued we were not able to evaluate the primary endpoint.

    Measured: for the duration of islet graft function

  2. A Reduction or Absence of Rejection Episodes

    Number of rejection episodes after transplantation. Immunosuppression was never discontinued. Patients elected to move to other trials to receive additional islet infusions. Since immunosuppression was never discontinued we were not able to evaluate the primary endpoint.

    Measured: for the duration of islet graft function

Secondary outcomes (2)
  1. Number of Subjects With Basal C-peptide Greater Than 0.5 ng/ml

    Number of subjects with basal C-peptide greater than 0.5 ng/ml prior to weaning of immunosuppression;

    Measured: for the duration of islet graft function

  2. Number of Subjects With Reduction of Severe Hypoglycemia and Improvement in Hypoglycemia Awareness

    Number of subjects with reduction of episodes of severe hypoglycemia and the presence of awareness of hypoglycemia

    Measured: for the duration of islet graft function

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Apr 2006 (estimated)
  2. Study startDec 2000
  3. Primary completionDec 2010
  4. Study completionDec 2010

Why it stopped: We did not achieve a tolerogenic profile. Subjects withdrew from protocol and enrolled in other islet transplant trials.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
3 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00315614
Sponsor's protocol ID
2000/0024
Other IDs
R01DK056953
Status last verified
Mar 2017
First submitted
14 Apr 2006
Last updated
4 Apr 2017
Data monitoring committee
Yes
Individual data sharing
No: Single arm few subjects.

Publications

  • Tharavanij T, Betancourt A, Messinger S, Cure P, Leitao CB, Baidal DA, Froud T, Ricordi C, Alejandro R. Improved long-term health-related quality of life after islet transplantation. Transplantation. 2008 Nov 15;86(9):1161-7. doi: 10.1097/TP.0b013e31818a7f45.

    PubMed 19005394

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Islet Transplantation and Bone Marrow in people with Type 1 Diabetes Mellitus, run by University of Miami at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 29 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 4 Apr 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 10 Feb 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The Achievement of Persistent Islet Function Following Cessation of Immunosuppression. (time frame: for the duration of islet graft function). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00315614, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Apr 2017.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in