The bio-inspired artificial pancreas for type 1 diabetes control in the home: System architecture and preliminary results
File(s)HERRERO_Manuscript_1_Rev3.pdf (9.82 MB)
Accepted version
Author(s)
Type
Journal Article
Abstract
BACKGROUND: Artificial pancreas (AP) technology has been proven to improve glucose and patient-centered outcomes for people with type 1 diabetes (T1D). Several approaches to implement the AP have been described, clinically evaluated, and in one case, commercialized. However, none of these approaches has shown a clear superiority with respect to others. In addition, several challenges still need to be solved before achieving a fully automated AP that fulfills the users' expectations. We have introduced the Bio-inspired Artificial Pancreas (BiAP), a hybrid adaptive closed-loop control system based on beta-cell physiology and implemented directly in hardware to provide an embedded low-power solution in a dedicated handheld device. In coordination with the closed-loop controller, the BiAP system incorporates a novel adaptive bolus calculator which aims at improving postprandial glycemic control. This paper focuses on the latest developments of the BiAP system for its utilization in the home environment. METHODS: The hardware and software architectures of the BiAP system designed to be used in the home environment are described. Then, the clinical trial design proposed to evaluate the BiAP system in an ambulatory setting is introduced. Finally, preliminary results corresponding to two participants enrolled in the trial are presented. RESULTS: Apart from minor technical issues, mainly due to wireless communications between devices, the BiAP system performed well (~88% of the time in closed-loop) during the clinical trials conducted so far. Preliminary results show that the BiAP system might achieve comparable glycemic outcomes to the existing AP systems (~73% time in target range 70-180 mg/dL). CONCLUSION: The BiAP system is a viable platform to conduct ambulatory clinical trials and a potential solution for people with T1D to control their glucose control in a home environment.
Date Issued
2019-11-01
Date Acceptance
2019-10-01
Citation
Journal of Diabetes Science and Technology, 2019, 13 (6), pp.1017-1025
ISSN
1932-2968
Publisher
SAGE Publications
Start Page
1017
End Page
1025
Journal / Book Title
Journal of Diabetes Science and Technology
Volume
13
Issue
6
Copyright Statement
© 2019 SAGE. The final, definitive version of this paper has been published by Sage Publications Ltd. All rights reserved. It is available at: https://doi.org/10.1177/1932296819881456
Sponsor
Wellcome Trust
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/31608656
Grant Number
WT 100921/Z/13/Z
Subjects
artificial pancreas
automatic insulin delivery
bio-inspired technology
low-power electronics
type 1 diabetes
Publication Status
Published
Coverage Spatial
United States
Date Publish Online
2019-10-14