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Islet transplants show promise in stopping dangerous blood sugar crashes

NCT ID NCT01897688

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Feb 2025

Lead sponsor

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

18 to 65 years

Sex

Anyone

Healthy volunteers

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

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

  • Northwestern University

    Chicago, Illinois, 60611, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.