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Clinical Trial Summary

The investigators aim to assess the glycemic outcomes of a fully automated insulin-and-pramlintide artificial pancreas and a comparator insulin-alone artificial pancreas with carbohydrate matched boluses.


Clinical Trial Description

The aim of this pilot study is to generate additional data of (i) a Fiasp-alone artificial pancreas with carbohydrate-matched boluses, compared to (ii) a Fiasp-plus-Pramlintide fully automated artificial pancreas with no meal announcement in an outpatient free-living setting. The study is not powered, nor aims to answer a scientific hypothesis related to the efficacy of the pramlintide and insulin closed-loop systems. Design The investigators will undertake a randomized crossover study to compare the following strategies: 1. Insulin-alone artificial pancreas with carbohydrate-matched boluses 2. Fiasp and pramlintide artificial pancreas with no meal announcement. Ratio of 1 unit of insulin for 8μg of pramlintide. 3. Fiasp and pramlintide artificial pancreas with no meal announcement. Ratio of 1 unit of insulin for 10μg of pramlintide. Each participant will be offered the opportunity to further participate in two optional additional arms: 4. Aspart and pramlintide artificial pancreas with no meal announcement. Ratio of 1 unit of insulin for 8μg of pramlintide. 5. Aspart and pramlintide artificial pancreas with no meal announcement. Ratio of 1 unit of insulin for 10μg of pramlintide. Aspart is used in this optional arm as it is the slower-acting version of Fiasp and can therefore be used to draw reasonable comparisons. Further, Aspart is an FDA approved insulin which is commonly sold and prescribed in North America. Several co-formulations are being developed with insulin, pramlintide, and glucagon. Given the widespread adoption and use of Aspart, it makes this insulin a good candidate for use in co-formulations and an excellent option for transition to market, where they will impact many individuals living with diabetes. Treatment period: Each intervention will last 14 hours. At-home run-ins, lasting two to four days, will occur prior to the pramlintide interventions. The interventions containing pramlintide with the same insulin will occur in sequence, one immediately after the other. The first pramlintide-and-Fiasp intervention will use a ratio of 8μg pramlintide/1unit of insulin and will be followed by the second pramlintide-and-Fiasp intervention the next day with a 10μg/1unit ratio. A similar schedule will be applied to the optional Aspart-and-pramlintide interventions. There will be a 2-29-day washout period between the Fiasp-and-pramlintide, Fiasp-alone, and Aspart-and-pramlintide interventions. Participants will be followed up remotely 1-2 days after the end of each intervention to ensure their washout period is going smoothly and will inquire about any adverse events. Remote contact can be performed via phone, email, text message or other reasonable communication channel. Participants will also be followed up remotely 1-2 days and 1-2 weeks after the end of their participation in the study. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05199714
Study type Interventional
Source McGill University Health Centre/Research Institute of the McGill University Health Centre
Contact
Status Completed
Phase N/A
Start date February 21, 2022
Completion date March 25, 2023

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