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Single-arm, first-in-human feasibility study results for an ultra-low-cost insulin pump.
Payne, Matthew; Pooke, Francis; Wilkinson, Tom M; Holder-Pearson, Lui; Chamberlain, Bronté; de Bock, Martin; Chase, J Geoffrey.
Afiliação
  • Payne M; Department of Mechanical Engineering, Centre for Bioengineering, University of Canterbury, 20 Kirkwood Avenue, Christchurch, 8041, New Zealand. matt.payne@pg.canterbury.ac.nz.
  • Pooke F; Department of Mechanical Engineering, Centre for Bioengineering, University of Canterbury, 20 Kirkwood Avenue, Christchurch, 8041, New Zealand.
  • Wilkinson TM; Department of Paediatrics, University of Otago, Christchurch, New Zealand.
  • Holder-Pearson L; Department of Mechanical Engineering, Centre for Bioengineering, University of Canterbury, 20 Kirkwood Avenue, Christchurch, 8041, New Zealand.
  • Chamberlain B; Department of Electrical and Computer Engineering, University of Canterbury, 20 Kirkwood Avenue, Christchurch, 8041, New Zealand.
  • de Bock M; Department of Paediatrics, University of Otago, Christchurch, New Zealand.
  • Chase JG; Department of Paediatrics, University of Otago, Christchurch, New Zealand.
BMC Endocr Disord ; 24(1): 134, 2024 Aug 01.
Article em En | MEDLINE | ID: mdl-39090697
ABSTRACT

BACKGROUND:

Use of Continuous Subcutaneous Insulin Infusion (CSII) has been shown to improve glycemic outcomes in Type 1 Diabetes (T1D), but high costs limit accessibility. To address this issue, an inter-operable, open-source Ultra-Low-Cost Insulin Pump (ULCIP) was developed and previously shown to demonstrate comparable delivery accuracy to commercial models in standardised laboratory tests. This study aims to evaluate the updated ULCIP in-vivo, assessing its viability as an affordable alternative for those who cannot afford commercially available devices.

METHODS:

This first-in-human feasibility study recruited six participants with T1D. During a nine-hour inpatient stay, participants used the ULCIP under clinical supervision. Venous glucose, insulin, and ß-Hydroxybutyrate were monitored to assess device performance.

RESULTS:

Participants displayed expected blood glucose and blood insulin levels in response to programmed basal and bolus insulin dosing. One participant developed mild ketosis, which was treated and did not recur when a new pump reservoir was placed. All other participants maintained ß-Hydroxybutyrate < 0.6 mmol/L throughout.

CONCLUSION:

The ULCIP safely delivered insulin therapy to users in a supervised inpatient environment. Future work should focus on correcting a pump hardware issue identified in this trial and extending device capabilities for use in closed loop control. Longer-term outpatient studies are warranted. TRIAL REGISTRATION The trial was prospectively registered with the Australian New Zealand Clinical Trials Registry (ACTRN12623001288617) on the 11 December 2023.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Glicemia / Sistemas de Infusão de Insulina / Estudos de Viabilidade / Diabetes Mellitus Tipo 1 / Hipoglicemiantes / Insulina Limite: Adult / Female / Humans / Male / Middle aged Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Glicemia / Sistemas de Infusão de Insulina / Estudos de Viabilidade / Diabetes Mellitus Tipo 1 / Hipoglicemiantes / Insulina Limite: Adult / Female / Humans / Male / Middle aged Idioma: En Ano de publicação: 2024 Tipo de documento: Article