Islet transplants show promise in stopping dangerous blood sugar crashes
NCT ID NCT01897688
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether transplanting insulin-producing islet cells, along with immune-suppressing drugs, could safely prevent severe low blood sugar episodes in people with type 1 diabetes who don't feel warning signs. Ten participants received the transplant and were monitored for safety and effectiveness. The goal was to see if this approach could eliminate life-threatening hypoglycemic events.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Islet cell transplant with Campath (immunosuppressive drug)
- What this could lead to
- If successful, this could offer a way to prevent dangerous low blood sugar episodes in people with type 1 diabetes, reducing the need for constant monitoring.
- What could go wrong
- This is a small, single-center study with only 10 participants, so results may not apply widely. The need for lifelong immunosuppression carries risks like infection and organ damage.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
-
10 people
The number who actually took part.
- Start date
-
Jun 2012
- Finished
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Feb 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria 1. Male and female patients age 18-65 years of age at consent 2. Ability to provide written informed consent 3. Mentally stable and able to comply with the procedures of the study protocol 4. Patients with T1D and insulin-dependent for at least 5 years fulfilling the following criteria: 1. Absent stimulated c-peptide (\<0.3 ng/mL) in response to a mixed meal tolerance test (MMTT; ensure 6 mL/kg body weight to a maximum of 360mL) measured at 60 and 90 min after the start of consumption 2. Patients who have been followed by a qualified physician for diabetes management for a minimum of 12 months 3. At least one episode of severe hypoglycemia in the past 12 months 4. A Clarke score of 4 or more defining reduced awareness of hypoglycemia 5. Or, previous islet cell transplant recipients who have returned to partial or full insulin usage and are taking maintenance immunosuppression medications. Exclusion Criteria 1. Body mass index (BMI) \> 30 2. Insulin requirement of \> 1.0 IU/kg/day 3. HbA1c \> 10% 4. Calculated glomerular filtration rate (GFR) \< 80mL/min for transplant-naïve patients (using subjects serum creatinine and the Chronic Kidney Disease Epidemiology Collaboration equation CKD-EPI) or 50mL/min for previously transplanted patients currently on immunosuppression 5. Macroalbuminuria \>300 mg/g creatinine 6. Panel reactive anti-HLA antibodies\> 50% by flow cytometry 7. For female subjects: positive pregnancy test, breast feeding or unwillingness to use effective contraceptive measures for the duration of the study. 8. Active infection including hepatitis B, hepatitis C, HIV, or tuberculosis (TB) 9. Negative Epstein-Barr Virus (EBV) by IgG 10. Any history of malignancy except resected squamous or basal cell carcinoma 11. Alcohol or substance abuse 12. Baseline Hb below the lower limit of normal 13. International normalized ratio \>1.5 and long term anticoagulant therapy 14. Clinically significant coronary artery disease 15. Elevated liver function tests \>1.5 times upper limit of normal 16. Symptomatic cholecystolithiasis 17. Gastrointestinal disorders interfering with ability to absorb oral medications 18. Uncontrolled hyperlipidemia (LDL cholesterol \>130 mg/dL and/or triglycerides \>200 mg/dL) 19. Chronic corticosteroid use
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Northwestern University
Chicago, Illinois, 60611, United States
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