Islet transplants for diabetes: how long do they last?
NCT ID NCT01999374
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study follows up to 30 people with type 1 diabetes who previously received islet cell transplants. Researchers want to see how long the transplanted cells keep working to control blood sugar. Participants must continue taking immunosuppressive drugs to prevent rejection.
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
- What this could lead to
- If successful, this could show how long islet transplants can control diabetes, pointing toward a long-term management option.
- What could go wrong
- This is a small, observational follow-up study, not a new treatment trial. Participants must stay on lifelong immunosuppression, which has serious risks.
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.
- Participants
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Start date
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Mar 2013
- Expected to finish
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Dec 2029
An estimate. End dates often move.
- 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.
Who is studied
Subject with Type 1 diabetes mellitos status post islet transplantation
- 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. Participation in any of the following parent studies: 2000/0329; 2000/0196; 2004/0205; 2000/0024; 2006/0200; 2006/0508; 2006/0210 2. A functioning pancreatic islet graft (absence of graft failure as defined in parent study) requiring immunosuppression. 3. Willingness of participants to continue to use an approved method of contraception during and 4 months after study participation. 4. Ability to provide written informed consent. Exclusion Criteria: 1. For female subjects: Positive pregnancy test, presently breast-feeding, or unwillingness to use effective contraceptive measures for the duration of the study and 4 months after discontinuation. For male subjects: intent to procreate during the duration of the study or within 4 months after discontinuation or unwillingness to use effective measures of contraception. Oral contraceptives, Norplant®, Depo-Provera®, and barrier devices with spermicide are acceptable contraceptive methods; condoms used alone are not acceptable. 2. Any medical condition that, in the opinion of the investigator, will interfere with safe participation in the trial.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Diabetes Research Institute
RECRUITINGMiami, Florida, 33136, United States
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