Long-Term Follow-Up for Islet Transplant Recipients

This observational study is following 30 adults (ages 18-65) who have already received a successful pancreatic islet transplant for Type 1 Diabetes Mellitus. The study aims to understand how long these islet transplants continue to work well. You can join if you participated in one of several previous islet transplant studies, still have a working islet graft, and are willing to use contraception during and for four months after the study. The main goal is to measure how long the islet graft continues to function over a period of three years. This study is not testing a new treatment, but rather observing the long-term effects of previous islet transplant procedures.

Study design
This is an observational study with an unclear status, planning to enroll 30 participants. It is not testing a new intervention but rather observing participants over time.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed to measure the duration of sustained islet allograft function for up to 3 years.

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NCT01999374

Long Term Follow up of Recipients of Functional Islet Allografts

Recruiting
Not specifiedAges 18–65Observational
Rodolfo Alejandro
~30 participants
Updated 2026-03-23 on ClinicalTrials.gov

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Duration of sustained islet allograft function
Measured over 3 years
Type 1 Diabetes Mellitus
1 sites across 1 states
Florida1
  • Rodolfo Alejandro, MD · PRINCIPAL_INVESTIGATOR · University of Miami

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  • Duration of sustained islet allograft function3 years

    The primary endpoint is duration of sustained islet allograft function as determined by evidence from Mixed Meal Tolerance Test of c-peptide production. A c-peptide level \>=0.3 ng/ml at 0, 60, or 90 minutes will be considered evidence of islet allograft function.