- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00434811
Islet Transplantation in Type 1 Diabetes
Study Overview
Status
Conditions
Detailed Description
Type 1 diabetes is commonly treated with the administration of insulin, either by multiple insulin injections or by a continuous supply of insulin through a wearable pump. Insulin therapy allows long-term survival in individuals with type 1 diabetes; however, it does not guarantee constant normal blood sugar control. Because of this, long-term type 1 diabetic survivors often develop vascular complications, such as diabetic retinopathy, an eye disease that can cause poor vision and blindness, and diabetic nephropathy, a kidney disease that can lead to kidney failure. Some individuals with type 1 diabetes develop hypoglycemia unawareness, a life-threatening condition that is not easily treatable with medication and is characterized by reduced or absent warning signals for hypoglycemia. For such individuals, transplantation of pancreatic islets is a possible treatment option. Unfortunately, insulin independence among islet transplant recipients tends to decline over time. New strategies aimed at promoting engraftment of transplanted islets are needed to improve the clinical outcomes associated with this procedure. The purpose of this study is determine the safety and efficacy of islet transplantation, when combined with an immunosuppressive medication regimen, for treating type 1 diabetes in individuals experiencing hypoglycemia unawareness and severe hypoglycemic episodes. This study will also seek to improve the understanding of determinants of success and failure of islet transplants for type 1 diabetes.
Eligible participants will be randomly assigned to this study or a site-specific Phase 2 islet transplantation study. Participants in this study will receive up to three separate islet transplants and a regimen of immunosuppressive medications consisting of antithymocyte globulin (ATG), sirolimus, and low-dose tacrolimus.
Transplantations will involve an inpatient hospital stay and infusion of islets into a branch of the portal vein. Participants who do not achieve or maintain insulin independence by Day 75 post-transplant will be considered for a second islet transplant. Participants who remain dependent on insulin for longer than 1 month after the second transplant and who show partial graft function will be considered for a third islet transplant. Basiliximab will be used in place of ATG for the second and third transplants, if they are necessary. Participants who do not meet the criteria for a subsequent transplant and do not have a functioning graft will enter a reduced follow-up period.
There will be up to 19 study visits following each transplant. A physical exam, review of adverse events, and blood collection will occur at most visits. A chest x-ray, abdominal ultrasound, electrocardiogram, quality of life questionnaires, urine collection, and glomerular filtrating rate (GFR) testing will occur at some visits. Participants will also test their own blood glucose levels at least five times per day throughout the study. A 24-month follow-up period will take place after the participant's last transplant.
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
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Alberta
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Edmonton, Alberta, Canada, T6G028
- University of Alberta
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California
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San Francisco, California, United States, 94143
- University of Callifornia, San Francisco
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Florida
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Miami, Florida, United States, 33136
- University of Miami
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Georgia
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Atlanta, Georgia, United States, 30322
- Emory University
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Illinois
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Chicago, Illinois, United States, 60611
- Northwestern University
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Chicago, Illinois, United States, 60612
- University of Illinois, Chicago
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Minnesota
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Minneapolis, Minnesota, United States, 55455
- University of Minnesota
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Pennsylvania
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Philadelphia, Pennsylvania, United States, 19104
- University of Pennsylvania
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- 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 a 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
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 prior to study enrollment
- At least one episode of severe hypoglycemia in the past 12 months, defined as an event with one of the following symptoms: memory loss; confusion; uncontrollable behavior; irrational behavior; unusual difficulty in awakening; suspected seizure; seizure; loss of consciousness; or visual symptoms, compatible with hypoglycemia in which the individual required assistance of another subject was unable to treat him/herself person and which was associated with either a blood glucose level less than 54 mg/dl or prompt recovery after oral carbohydrate, intravenous glucose, or glucagon administration in the 12 months prior to study enrollment
- Reduced awareness of hypoglycemia. More information about this criterion, including specific definition of hypoglycemia unawareness, is in the protocol.
Exclusion Criteria:
- Body mass index (BMI) greater than 30 kg/m2 or weight less than or equal to 50 kg
- Insulin requirement of more than 1.0 IU/kg/day or less than 15 U/day
- HbA1c greater than 10%
- Untreated proliferative diabetic retinopathy
- Systolic blood pressure higher than 160 mmHg or diastolic blood pressure higher than 100 mmHg
- Measured glomerular filtration rate using iohexol of less than 80 ml/min/1.73mm2. More information about this criterion is in the protocol.
- Presence or history of macroalbuminuria (greater than 300 mg/g creatinine)
- Presence or history of panel-reactive anti-HLA antibody levels greater than background by flow cytometry. More information about this criterion is in the protocol.
- Pregnant, breastfeeding, or unwilling to use effective contraception throughout the study and 4 months after study completion
- Presence or history of active infection, including hepatitis B, hepatitis C, HIV, or tuberculosis.
- Negative for Epstein-Barr virus by IgG determination
- Invasive aspergillus, histoplasmosis, or coccidioidomycosis infection in the past year
- History of malignancy except for 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
- History of Factor V deficiency
- Any coagulopathy or medical condition requiring long-term anticoagulant therapy after transplantation 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
- Left ventricular ejection fraction less than 30%
- Persistent elevation of liver function tests at the time of study entry
- Symptomatic cholecystolithiasis
- Acute or chronic pancreatitis
- Symptomatic peptic ulcer disease
- Severe unremitting diarrhea, vomiting, or other gastrointestinal disorders that could interfere with the ability to absorb oral medications
- Hyperlipidemia despite medical therapy, defined as fasting LDL cholesterol greater than 130 mg/dl (treated or untreated) and/or fasting triglycerides greater than 200 mg/dl
- Currently receiving treatment for a medical condition that requires chronic use of systemic steroids except for the use of 5 mg or less of prednisone daily, or an equivalent dose of hydrocortisone, for physiological replacement only
- Treatment with any antidiabetic medication other than insulin within the past 4 weeks
- Use of any study medications within the past 4 weeks
- Received a live attenuated vaccine(s) within the past 2 months
Any medical condition that, in the opinion of the investigator, might interfere with safe participation in the trial
- Treatment with any immunosuppressive regimen at the time of enrollment.
- A previous islet transplant.
- A previous pancreas transplant, unless the graft failed within the first week due to thrombosis, followed by pancreatectomy and the transplant occurred more than 6 months prior to enrollment.
Study Plan
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 |
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Experimental: Islet Transplantation
Participants will receive up to three separate islet transplants and a regimen of immunosuppressive medications consisting of antithymocyte globulin (ATG), sirolimus, and low-dose tacrolimus.
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200 ml suspension of allogenic human purified islets
Participants will begin receiving ATG 2 days prior to the first islet transplant.
ATG will continue to be given until Day 2 post-transplant.
Participants will begin receiving sirolimus 2 days prior to the first islet transplant and will be given for the duration of the study.
Other Names:
On Day 1 post-transplant, participants will receive tacrolimus, which will also be taken for the duration of the study.
Other Names:
Etanercept will be taken on the day of transplant and Days 3, 7, and 10 post-transplant.
Transplantation of pancreatic islet cell
Basiliximab will be used in place of ATG for the second and third transplants, if they are necessary.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Proportion of participants with a HbA1c less than 7.0% AND free of severe hypoglycemic events
Time Frame: From Day 28 to Day 365 (inclusive) following the first islet transplant, with the day of transplant designated Day 0
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The proportion of participants with HbA1c ≤7.0%
AND free of severe hypoglycemic events from Day 28 to Day 365 inclusive, following the first islet transplant, with the day of transplant designated Day 0.
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From Day 28 to Day 365 (inclusive) following the first islet transplant, with the day of transplant designated Day 0
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Incidence and severity of adverse events related to the islet transplant procedure
Time Frame: 75 days following each transplant and 365 days following the first and final islet transplant
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75 days following each transplant and 365 days following the first and final islet transplant
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Incidence of worsening retinopathy
Time Frame: 365 days following the first islet transplant
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365 days following the first islet transplant
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Percent reduction in insulin requirements
Time Frame: 75 days following the first and subsequent islet transplant
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75 days following the first and subsequent islet transplant
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HbA1c on Day 75 Status Post the First and Subsequent Islet Transplant
Time Frame: 75 days following the first and subsequent islet transplant
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The target level for HbA1c for this study is 7.0%.
This value is the level recommended by the American Diabetes Association and is considered to be the clinically relevant goal for subjects with Type 1 diabetes (T1D).
A HbA1c level of 6.5% is the goal recommended by the American College of Endocrinology.
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75 days following the first and subsequent islet transplant
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Mean amplitude of glycemic excursions (MAGE)
Time Frame: 75 days following the first and subsequent islet transplant
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A MAGE >11.1 mmol/L (200 mg/dL) is indicative of marked glycemic lability.
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75 days following the first and subsequent islet transplant
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Glycemic liability index (LI)
Time Frame: 75 days following the first and subsequent islet transplant
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75 days following the first and subsequent islet transplant
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Ryan hypoglycemia severity score (HYPO)
Time Frame: 75 days following the first and subsequent islet transplant
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75 days following the first and subsequent islet transplant
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Basal (fasting) and 90-minute glucose and C-peptide derived from mixed meal tolerance test (MMTT)
Time Frame: 75 days following the first and subsequent islet transplant
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75 days following the first and subsequent islet transplant
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β-score on Day 75 Status Post the First and Subsequent Islet Transplant
Time Frame: 75 days following the first and subsequent islet transplant
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Beta-score: an assessment of beta-cell function after islet transplantation.
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75 days following the first and subsequent islet transplant
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C-peptide:glucose creatinine ratio
Time Frame: 75 days following the first and subsequent islet transplant
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75 days following the first and subsequent islet transplant
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Acute insulin response to glucose, insulin sensitivity, and disposition index derived from the insulin-modified frequently sampled intravenous glucose tolerance (FSIGT) test
Time Frame: 75 days following the first and subsequent islet transplant
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75 days following the first and subsequent islet transplant
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Glucose variability and hypoglycemia duration derived from the continuous glucose monitoring system (CGMS)
Time Frame: 75 days following the first and subsequent islet transplant
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75 days following the first and subsequent islet transplant
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Assessment of Quality of Life Using the Short Form 36 Health Survey: Day 75 Status Post First and Final Islet Transplant
Time Frame: 75 days following the first and subsequent islet transplant
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The Short-Form 36 Health Survey (SF-36®) is comprised of 36 items and 2 component scores, the Physical Component Score and the Mental Component Score.
Each component is transformed into a 0-100 scale (higher numbers indicate greater quality of life) and normalized to have a mean of 50 and standard deviation of 10 for the 1998 general US population.
SF-36 results unit of measure: Units on a Scale.
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75 days following the first and subsequent islet transplant
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Proportion of insulin-independent Participants on Day 365 Status Post the First and Final Islet Transplant
Time Frame: 365 days following the first and final islet transplant
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365 days following the first and final islet transplant
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Percent reduction in insulin requirements
Time Frame: 365 days following the first and final islet transplant
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365 days following the first and final islet transplant
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HbA1c on Day 365 Status Post the First and Final Islet Transplant
Time Frame: 365 days following the first and final islet transplant
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The target level for HbA1c for this study is 7.0%.
This value is the level recommended by the American Diabetes Association and is considered to be the clinically relevant goal for subjects with Type 1 diabetes (T1D).
A HbA1c level of 6.5% is the goal recommended by the American College of Endocrinology.
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365 days following the first and final islet transplant
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MAGE
Time Frame: 365 days following the first and final islet transplant
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A MAGE >11.1 mmol/L (200 mg/dL) is indicative of marked glycemic lability.
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365 days following the first and final islet transplant
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Glycemic liability index (LI): Day 365 Status Post First and Final Islet Transplant
Time Frame: 365 days following the first and final islet transplant
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365 days following the first and final islet transplant
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Clarke score
Time Frame: 365 days following the first and final islet transplant
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The Clarke survey provides a composite indices of hypoglycemia frequency, severity, and symptom recognition.
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365 days following the first and final islet transplant
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HYPO score
Time Frame: 365 days following the first and final islet transplant
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The HYPO(glycemia) score provides a composite indices of hypoglycemia frequency, severity, and symptom recognition.
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365 days following the first and final islet transplant
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Basal (fasting) and 90-minute glucose and C-peptide (MTT)
Time Frame: 365 days following the first and final islet transplant
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365 days following the first and final islet transplant
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β-score on Day 365 Status Post First and Final Islet Transplant
Time Frame: 365 days following the first and final islet transplant
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Beta-score: an assessment of beta-cell function after islet transplantation.
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365 days following the first and final islet transplant
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C-peptide: glucose creatinine ratio
Time Frame: 365 days following the first and final islet transplant
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365 days following the first and final islet transplant
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Assessment of Quality of Life Using the Short Form 36 Health Survey: Day 365 Status Post First and Final Islet Transplant
Time Frame: 365 days following the first and final islet transplant
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The Short-Form 36 Health Survey (SF-36®) is comprised of 36 items and 2 component scores, the Physical Component Score and the Mental Component Score.
Each component is transformed into a 0-100 scale (higher numbers indicate greater quality of life) and normalized to have a mean of 50 and standard deviation of 10 for the 1998 general US population.
SF-36 results unit of measure: Units on a Scale.
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365 days following the first and final islet transplant
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Proportion of participants receiving a second islet transplant
Time Frame: 365 days following the first and final islet transplant
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365 days following the first and final islet transplant
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Proportion of participants receiving a third islet transplant
Time Frame: 365 days following the first and final islet transplant
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365 days following the first and final islet transplant
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Incidence and severity of adverse events related to the immunosuppression therapy
Time Frame: 75 days following each transplant and 365 days following the first and final islet transplant
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75 days following each transplant and 365 days following the first and final islet transplant
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Incidence of a change in the immunosuppression drug regimen
Time Frame: 75 days following each transplant and 365 days following the first and final islet transplant
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75 days following each transplant and 365 days following the first and final islet transplant
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Incidence of immune sensitization defined by detecting anti-HLA antibodies not present prior to transplantation
Time Frame: 75 days following each transplant and 365 days following the first and final islet transplant
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75 days following each transplant and 365 days following the first and final islet transplant
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Proportion of insulin-independent participants on Day 75 Status Post First and Subsequent Islet Transplant
Time Frame: 75 days following first and subsequent islet transplant
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75 days following first and subsequent islet transplant
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Acute insulin response to glucose insulin sensitivity, and disposition index derived from the FSIGT test
Time Frame: 365 days following the first and final islet transplant
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Frequently Sampled Intravenous Glucose Tolerance (FSIGT), a measure of insulin-independence, a clinically relevant measure of islet graft function.
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365 days following the first and final islet transplant
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Collaborators and Investigators
Investigators
- Study Chair: Bernhard Hering, MD, University of Minnesota
- Study Chair: Olle Korsgren, PhD, Uppsala University Hospital
- Study Chair: Ali Naji, PhD, University of Pennsylvania
- Study Chair: Camillo Ricordi, MD, University of Miami
- Study Chair: James Shapiro, MD, PhD, University of Alberta
- Study Chair: Andrew Posselt, MD, PhD, University of California, San Francisco
- Study Chair: Nicole Turgeon, MD, Emory University
- Study Chair: Xunrong Luo, MD, PhD, Northwestern Univerity
Publications and helpful links
General Publications
- Shapiro AM, Ricordi C, Hering BJ, Auchincloss H, Lindblad R, Robertson RP, Secchi A, Brendel MD, Berney T, Brennan DC, Cagliero E, Alejandro R, Ryan EA, DiMercurio B, Morel P, Polonsky KS, Reems JA, Bretzel RG, Bertuzzi F, Froud T, Kandaswamy R, Sutherland DE, Eisenbarth G, Segal M, Preiksaitis J, Korbutt GS, Barton FB, Viviano L, Seyfert-Margolis V, Bluestone J, Lakey JR. International trial of the Edmonton protocol for islet transplantation. N Engl J Med. 2006 Sep 28;355(13):1318-30. doi: 10.1056/NEJMoa061267.
- Gala-Lopez B, Kin T, O'Gorman D, Pepper AR, Senior P, Humar A, Shapiro AM. Microbial contamination of clinical islet transplant preparations is associated with very low risk of infection. Diabetes Technol Ther. 2013 Apr;15(4):323-7. doi: 10.1089/dia.2012.0297. Epub 2013 Feb 25.
- Harlan DM. Islet Transplantation for Hypoglycemia Unawareness/Severe Hypoglycemia: Caveat Emptor. Diabetes Care. 2016 Jul;39(7):1072-4. doi: 10.2337/dci16-0008. No abstract available.
- Rickels MR, Liu C, Shlansky-Goldberg RD, Soleimanpour SA, Vivek K, Kamoun M, Min Z, Markmann E, Palangian M, Dalton-Bakes C, Fuller C, Chiou AJ, Barker CF, Luning Prak ET, Naji A. Improvement in beta-cell secretory capacity after human islet transplantation according to the CIT07 protocol. Diabetes. 2013 Aug;62(8):2890-7. doi: 10.2337/db12-1802. Epub 2013 Apr 29.
- Hering BJ, Clarke WR, Bridges ND, Eggerman TL, Alejandro R, Bellin MD, Chaloner K, Czarniecki CW, Goldstein JS, Hunsicker LG, Kaufman DB, Korsgren O, Larsen CP, Luo X, Markmann JF, Naji A, Oberholzer J, Posselt AM, Rickels MR, Ricordi C, Robien MA, Senior PA, Shapiro AM, Stock PG, Turgeon NA; Clinical Islet Transplantation Consortium. Phase 3 Trial of Transplantation of Human Islets in Type 1 Diabetes Complicated by Severe Hypoglycemia. Diabetes Care. 2016 Jul;39(7):1230-40. doi: 10.2337/dc15-1988. Epub 2016 Apr 18.
- Ricordi C, Goldstein JS, Balamurugan AN, Szot GL, Kin T, Liu C, Czarniecki CW, Barbaro B, Bridges ND, Cano J, Clarke WR, Eggerman TL, Hunsicker LG, Kaufman DB, Khan A, Lafontant DE, Linetsky E, Luo X, Markmann JF, Naji A, Korsgren O, Oberholzer J, Turgeon NA, Brandhorst D, Chen X, Friberg AS, Lei J, Wang LJ, Wilhelm JJ, Willits J, Zhang X, Hering BJ, Posselt AM, Stock PG, Shapiro AM, Chen X. National Institutes of Health-Sponsored Clinical Islet Transplantation Consortium Phase 3 Trial: Manufacture of a Complex Cellular Product at Eight Processing Facilities. Diabetes. 2016 Nov;65(11):3418-3428. doi: 10.2337/db16-0234. Epub 2016 Jul 27. Erratum In: Diabetes. 2017 Sep;66(9):2531.
- Foster ED, Bridges ND, Feurer ID, Eggerman TL, Hunsicker LG, Alejandro R; Clinical Islet Transplantation Consortium. Improved Health-Related Quality of Life in a Phase 3 Islet Transplantation Trial in Type 1 Diabetes Complicated by Severe Hypoglycemia. Diabetes Care. 2018 May;41(5):1001-1008. doi: 10.2337/dc17-1779. Epub 2018 Mar 21.
- Senior PA, Bellin MD, Alejandro R, Yankey JW, Clarke WR, Qidwai JC, Schwieger TR, Eggerman TL, Robien MA, Rickels MR; Clinical Islet Transplantation Consortium. Consistency of quantitative scores of hypoglycemia severity and glycemic lability and comparison with continuous glucose monitoring system measures in long-standing type 1 diabetes. Diabetes Technol Ther. 2015 Apr;17(4):235-42. doi: 10.1089/dia.2014.0289. Epub 2015 Jan 28.
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Glucose Metabolism Disorders
- Metabolic Diseases
- Immune System Diseases
- Autoimmune Diseases
- Endocrine System Diseases
- Diabetes Mellitus
- Diabetes Mellitus, Type 1
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Anti-Infective Agents
- Peripheral Nervous System Agents
- Enzyme Inhibitors
- Analgesics
- Sensory System Agents
- Anti-Inflammatory Agents, Non-Steroidal
- Analgesics, Non-Narcotic
- Anti-Inflammatory Agents
- Antirheumatic Agents
- Antineoplastic Agents
- Immunosuppressive Agents
- Immunologic Factors
- Gastrointestinal Agents
- Anti-Bacterial Agents
- Antibiotics, Antineoplastic
- Antifungal Agents
- Calcineurin Inhibitors
- Etanercept
- Tacrolimus
- Sirolimus
- Basiliximab
- Antilymphocyte Serum
Other Study ID Numbers
- DAIT CIT-07
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Participant level data access and additional relevant materials are available to researchers and the public at: https://www.immport.org/home.
The study Identifier in ImmPort is SDY1178.
IPD Sharing Time Frame
IPD Sharing Access Criteria
Register for ImmPort at: https://www.immport.org/registration and submit a rationale for the purpose of requesting study data access.
ImmPort is a long-term archive of clinical and mechanistic data, a National Institute of Allergy and Infectious Diseases Division of Allergy, Immunology and Transplantation (NIAID DAIT)-funded data repository. This archive is in support of the NIH mission to share data with the public. Data shared through ImmPort is provided by NIH-funded programs, other research organizations and individual scientists, ensuring these discoveries will be the foundation of future research.
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- SAP
- ICF
- ANALYTIC_CODE
Study Data/Documents
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Study Protocol
Information identifier: SDY1178Information comments: ImmPort study ID is SDY1178.
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Complete set of descriptive data and results
Information identifier: SDY1178Information comments: ImmPort is a long-term archive of clinical and mechanistic data from DAIT-funded grants and contracts. This archive is in support of the NIH mission to share data with the public.
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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