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Diabetes Mellitus, Type IPhase 2NCT00789308

Safety and Effectiveness of Low Molecular Weight Sulfated Dextran in Islet Transplantation

A Phase 2 study testing Low Molecular Weight Sulfated Dextran (LMW-SD), Heparin and CellCept® (Mycophenolate mofetil) OR Rapamune® (Sirolimus) in people with Diabetes Mellitus, Type I, run by National Institute of Allergy and Infectious Diseases (NIAID) at 3 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

Type 1 diabetes is an autoimmune disease in which the insulin-producing pancreatic beta cells are destroyed, resulting in poor blood sugar control. The purpose of this study is to assess the safety and effectiveness of low molecular weight sulfated dextran (LMW-SD) on post-transplant islet function in people with type… Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Diabetes Mellitus, Type I
What is being tested?
Low Molecular Weight Sulfated Dextran (LMW-SD), Heparin and CellCept® (Mycophenolate mofetil) OR Rapamune® (Sirolimus)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
3 sitesin 2 countries
Study dates
11 Jul 2008to 21 Aug 2014
Phase
Phase 2
Are there results?
None posted in the registry

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

  • Mentally stable and able to comply with study procedures;
  • Clinical history compatible with type 1 diabetes, with:
  • onset of disease at less than 40 years of age,
  • insulin dependence for at least 5 years at study entry, and
  • sum of age and insulin-dependent diabetes duration of at least 28.
  • Absent stimulated C-peptide (less than 0.3 ng/ml) 60 and 90 minutes post-mixed-meal tolerance test;
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  • Involvement of intensive diabetes management, defined as:
  • Self-monitoring of glucose values no less than a mean of three times each day, averaged over each week,
  • Administration of three or more insulin injections each day or insulin pump therapy,
  • Under the direction of an endocrinologist, diabetologist, or diabetes specialist, with at least three clinical evaluations during the past 12 months.
  • At least one episode of severe hypoglycemia in the past 12 months, defined as an event with symptoms compatible with hypoglycemia in which the individual required assistance of another person and which was associated with either a blood glucose level less than 54 mg/dl or prompt recovery after an oral carbohydrate, intravenous glucose, or glucagon administration; and
  • Reduced awareness of hypoglycemia OR marked glycemic lability OR a composite of a Clarke score of 3 or more or a HYPO score greater or equal to the 75th percentile in the 12 months prior to randomization.

Who cannot join

  • Known IgE mediated allergy to antibiotics used in the culture medium;
  • Known hypersensitivity to dextran;
  • Body mass index (BMI) greater than 30 kg/m^2;
  • Insulin requirement of more than 1.0 IU/kg/day;
  • HbA1c greater than 10%;
  • Untreated proliferative diabetic retinopathy;
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  • Systolic blood pressure higher than 160 mmHg or diastolic blood pressure higher than 100 mmHg;
  • Measured glomerular filtration rate (GFR) using 51Cr-EDTA, 99technetium-DPTA, or iohexol of less than 80 ml/min/1.73m^2;
  • Presence or history of macroalbuminuria (greater than 300 mg/g creatinine);
  • Presence or history of panel-reactive anti-HLA antibody levels greater than 20% by flow cytometry;
  • Pregnant, breastfeeding, or unwilling to use effective contraception throughout the study and for 4 months after study completion;
  • Active infection, including hepatitis B virus, hepatitis C virus, HIV, or tuberculosis;
  • Negative for Epstein-Barr virus by IgG determination;
  • History of malignancy with exception of completely resected squamous or basal cell carcinoma of the skin;
  • Known active alcohol or substance abuse;
  • Baseline Hgb below the lower limits of normal, lymphopenia, neutropenia, or thrombocytopenia;
  • Activated protein C resistance (APC-R);
  • Any coagulopathy or individuals with an INR greater than 1.5;
  • Severe coexisting cardiac disease, characterized by any one of the following conditions:
  • Heart attack within the last 6 months,
  • Evidence of ischemia on functional heart exam within the year prior to study entry, or
  • Left ventricular ejection fraction less than 30%.
  • Persistent elevation of liver function tests at the time of study entry;
  • Acute or chronic pancreatitis;
  • Active peptic ulcer disease, symptomatic gallstones, or a history of portal hypertension;
  • Severe unremitting diarrhea, vomiting, or other gastrointestinal disorders that could interfere with the ability to absorb oral medications;
  • Currently receiving treatment for a medical condition that requires chronic use of systemic steroids;
  • Treatment with any antidiabetic medication other than insulin, within 4 weeks prior to study entry;
  • Use of any investigational medications within the past 4 weeks;
  • Received a live attenuated vaccine within the past 2 months;
  • Treatment with any immunosuppressive regimen at time of study entry;
  • Previous islet transplant;
  • Previous pancreas transplant.
  • --Note: Participants who had a pancreas transplant more than 6 months prior to study entry that failed within the first week due to thrombosis, followed by surgical removal of the transplanted pancreas, are not excluded.
  • Or any medical condition that, in the opinion of the investigator, might interfere with safe participation.

Trial locations and contacts

3 sites in 2 countries.

3 sites in 2 countries

Sweden2 sites
  • Karolinska University Hospital

    Stockholm

  • Uppsala University Hospital

    Uppsala

Other trials in Sweden

Norway1 site
  • University Hospital Rikshospitalet

    Oslo

Other trials in Norway

About this study

Official title: Open Randomized Mult-Center Study to Evaluate Safety and Efficacy of Low Molecular Weight Sulfated Dextran in Islet Transplantation (CIT-01)

Type 1 diabetes is an autoimmune disease in which the insulin-producing pancreatic beta cells are destroyed, resulting in poor blood sugar control. The purpose of this study is to assess the safety and effectiveness of low molecular weight sulfated dextran (LMW-SD) on post-transplant islet function in people with type 1 diabetes who have responded to intensive insulin therapy.

Read the detailed description

Type I diabetes, also known as insulin-dependent diabetes, is a chronic disease in which the pancreas produces insufficient insulin to properly regulate blood sugar levels. Hypoglycemia, or low blood sugar, and hyperglycemia, or high blood sugar, can lead to significant complications in people with type 1 diabetes. Intensive insulin therapy has been shown to reduce the risk of chronic complications in people who achieve near normalization of glycemia. However, this therapy is labor intensive, difficult to implement, and associated with an increased frequency of severe hypoglycemia. Transplantation of islets from a healthy pancreas has been successful in restoring normal blood sugar levels and has led to initial insulin independence in people with type 1 diabetes. Rejection of these islets by the recipient's immune system, however, can make the treatment ineffective. An immune response known as instant blood-mediated inflammatory reaction (IBMIR) results in the disruption of islet integrity and islet loss within an hour of transfusion. LMW-SD inhibits IBMIR by preventing the cascade that triggers it, when combined with pancreatic islets. The purpose of this study is to determine the safety and efficacy of LMW-SD given with islet transfusion and post-transfusion along with immunosuppressive therapy, including mycophenolate mofetil or sirolimus, tacrolimus or cyclosporine, and thymoglobulin or basiliximab, on the success of islet transplantation in people with type 1 diabetes.

This study will last for 1 year after the final islet transplant. Participants may receive up to 3 islet transplants while participating in this study. Participants eligible for this study will have clinic visits every 6 months. Once a preparation of islets becomes available, participants will be randomly assigned to Arm 1 or Arm 2. Participants in Arm 1 will receive LMW-DS during and for 5 hours after infusion. Participants in Arm 2 will receive heparin at the time of infusion. In addition, all participants will receive anticoagulation prophylaxis agents consisting of Klexzane® (Enoxaparinsodium) and Trombyl® or Albyl-E® (Acetylsalicylic acid). All participants will also receive the oral immunosuppression medications consisting of mycophenolate mofetil or sirolimus and tacrolimus or cyclosporine throughout the study. In addition, they will receive intravenous thymoglobulin on days -2, -1, day 0 (transplant), +1, and +2 for the first transplant or intravenous basiliximab at the time of transplant and on Day 4 for the second and third transplant. Enbrel® (Etanercept) will be given to all participants for anti-inflammatory therapy. Islet infusions will occur at the hospital and will be given intravenously. Participants will be eligible to receive second and third islet infusions if previous infusions fail and they continue to meet the eligibility criteria. After each infusion, study visits will occur on Days 1, 3, 7, 14, 21, 28, and 75 and Months 6 and 12. At these visits, physical exams and blood collection will occur. At some visits, urine collection will also occur.

Being tested
Low Molecular Weight Sulfated Dextran (LMW-SD), Heparin, CellCept® (Mycophenolate mofetil) OR Rapamune® (Sirolimus), Prograf® (Tacrolimus) OR Cyclosporine, Thymoglobulin® (Anti-thymocyte Globulin) - at first transplant
Keywords
Insulin dependence
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.

  • Low Molecular Weight Sulfated Dextran (LMW-SD)Drug

    Inhibitor of IBMIR

  • HeparinDrug

    Anticoagulation

  • CellCept® (Mycophenolate mofetil) OR Rapamune® (Sirolimus)Drug

    Cell proliferation inhibitor

  • Prograf® (Tacrolimus) OR CyclosporineDrug

    Calcineurin inhibitor

  • Thymoglobulin® (Anti-thymocyte Globulin) - at first transplantDrug

  • Simulect® (Basiliximab) - at 2nd or 3rd transplantDrug

    Monoclonal IL-2 receptor blocker

  • Klexane® (Enoxaparinsodium)Drug

    Anticoagulation Prophylaxis

  • Trombyl® or Albyl-E® (Acetylsalicylicacid- ASA)Drug

    Anticoagulation Prophylaxis

  • Enbrel® (Etanercept)Drug

    Anti-Inflammatory Therapy

Study groups in NCT00789308
Study groupRoleWhat they receive
Standard of CareActive comparator18 participants randomized to protocol immunosuppression (Daclizumab OR Basiliximab; Tacrolimus OR Cyclosporine; Mycophenolate Mofetil OR Sirolimus; and heparin) without LMW-DS
Receives: Drug: Heparin; Drug: CellCept® (Mycophenolate mofetil) OR Rapamune® (Sirolimus); Drug: Prograf® (Tacrolimus) OR Cyclosporine; Drug: Thymoglobulin® (Anti-thymocyte Globulin) - at first transplant; Drug: Simulect® (Basiliximab) - at 2nd or 3rd transplant; Drug: Klexane® (Enoxaparinsodium); Drug: Trombyl® or Albyl-E® (Acetylsalicylicacid- ASA); Drug: Enbrel® (Etanercept)
LMW-DSExperimental18 participants randomized to protocol immunosuppression (Daclizumab OR Basiliximab; Tacrolimus OR Cyclosporine; Mycophenolate Mofetil OR Sirolimus; and heparin) and LMW-DS
Receives: Drug: Low Molecular Weight Sulfated Dextran (LMW-SD); Drug: CellCept® (Mycophenolate mofetil) OR Rapamune® (Sirolimus); Drug: Prograf® (Tacrolimus) OR Cyclosporine; Drug: Thymoglobulin® (Anti-thymocyte Globulin) - at first transplant; Drug: Simulect® (Basiliximab) - at 2nd or 3rd transplant; Drug: Klexane® (Enoxaparinsodium); Drug: Trombyl® or Albyl-E® (Acetylsalicylicacid- ASA); Drug: Enbrel® (Etanercept)

What is being measured

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

  1. Level of stimulated c-peptide at 90-minute derived from the mixed-meal tolerance test (MMTT)

    Measured: At 70 to 80 days after first islet transfusion

Secondary outcomes (19)
  1. Number of participants who achieve and maintain a 7.0% HbA1c level

    Measured: Throughout Study

  2. Number of severe hypoglycemic events

    Measured: Throughout study

  3. Percent reduction in insulin requirements

    Measured: At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  4. Ryan hypoglycemia severity score ( HYPO) score

    Measured: : At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  5. Proportion of participants with full graft function

    Measured: At 70 to 80 days after first islet transfusion and after the final islet infusion

  6. C-peptide to glucose creatinine ratio

    Measured: At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  7. Proportion of participants receiving a second islet infusion and proportion of participants receiving a third islet transfusion

    Measured: At 70 to 80 days after first islet transfusion and after the final islet infusion

  8. Incidence and severity of adverse events related to islet infusion procedure

    Measured: At 70 to 80 days and 350 to 379 days after the first islet transfusion

  9. Incidence of worsening retinopathy

    Measured: At 350 to 379 days after the first islet transfusion

  10. HbA1c level

    Measured: At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  11. Mean amplitude of glycemic excursions (MAGE)

    Measured: At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  12. Glycemic lability index (LI)

    Measured: At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  13. Clarke hypoglycemia awareness score

    Measured: At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  14. Basal (fasting) and 90-minute glucose and c-peptide derived from MMTT

    Measured: : At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  15. Beta-score

    Measured: At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  16. Acute insulin response to glucose, insulin sensitivity, and disposition index derived from the insulin-modified frequently-sampled intravenous glucose tolerance (FSIGT) test,

    Measured: At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  17. Glucose variability and hypoglycemic duration derived from continuous glucose monitoring system(CGMS)

    Measured: At 70 to 80 days after first islet transfusion, At 365 days after first and final islet infusion

  18. Incidence of a change in the immunosuppression drug regimen

    Measured: At 70 to 80 days and 350 to 379 days after the first islet transfusion

  19. Incidence of immune sensitization defined by detecting anti-HLA antibodies not present prior to transplantation

    Measured: At 70 to 80 days and 350 to 379 days after the first islet transfusion

Timeline

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

  1. First posted11 Nov 2008 (estimated)
  2. Study start11 Jul 2008
  3. Primary completionJul 2013
  4. Study completion21 Aug 2014

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
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00789308
Sponsor's protocol ID
DAIT CIT-01
Other IDs
CIT-01, 2008-001210-25, 2008
Status last verified
Sep 2021
First submitted
10 Nov 2008
Last updated
28 Sep 2021
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Yes: The plan is to share data upon completion of the study in: Immunology Database and Analysis Portal (ImmPort), a long-term archive of clinical and mechanistic data from DAIT-funded grants and contracts.

Publications

  • von Zur-Muhlen B, Lundgren T, Bayman L, Berne C, Bridges N, Eggerman T, Foss A, Goldstein J, Jenssen T, Jorns C, Morrison Y, Ryden M, Schwieger T, Tufveson G, Nilsson B, Korsgren O. Open Randomized Multicenter Study to Evaluate Safety and Efficacy of Low Molecular Weight Sulfated Dextran in Islet Transplantation. Transplantation. 2019 Mar;103(3):630-637. doi: 10.1097/TP.0000000000002425.

    PubMed 30211831

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Low Molecular Weight Sulfated Dextran (LMW-SD), Heparin and CellCept® (Mycophenolate mofetil) OR Rapamune® (Sirolimus) in people with Diabetes Mellitus, Type I, run by National Institute of Allergy and Infectious Diseases (NIAID) at 3 sites in 2 countries.

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 12 inclusion and 35 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: finished, as of the sponsor's last update on 28 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in Sweden, Norway. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Level of stimulated c-peptide at 90-minute derived from the mixed-meal tolerance test (MMTT) (time frame: At 70 to 80 days after first islet transfusion). 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 NCT00789308, 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 28 Sep 2021.

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