Assessing Closed-loop Insulin Delivery in Children With Type 1 Diabetes.

NCT ID: NCT04612257

Last Updated: 2023-07-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-06-18

Study Completion Date

2022-06-13

Brief Summary

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The objective of this clinical trial is to assess the safety of our insulin dosing algorithm in children with type 1 diabetes in a free-living study.

Detailed Description

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This is a preliminary pilot study to generate data to optimize an insulin dosing algorithm to regulate glucose levels in children with type 1 diabetes. There will be up to two 40-hour test in outpatient settings, in which we will assess an insulin dosing algorithm. The two tests will allow us to compare different tunings in the same patient (this allows easier interpretation of the data). For example, if in a specific participant, the dosing algorithm reduced insulin delivery at night to avoid low blood glucose levesl but led to a rebound increase in glucose levels, then a second visit with a slightly different target range will help answer this question. The objective of this clinical trial is to assess the safety of our algorithm in children with type 1 diabetes in a free-living study.

Conditions

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Diabetes Mellitus, Type 1

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

The pilot study aims to enroll 20 children participants with type 1 diabetes mellitus using insulin pump therapy. Each participant will undergo a 40-hour intervention period, with the possibility of being invited to a second 40-hour intervention period using the same system.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Insulin alone closed-loop

Insulin alone closed-loop algorithm in children with type 1 diabetes in a free-living study.

Group Type EXPERIMENTAL

Insulin-alone closed-loop

Intervention Type OTHER

40-hour intervention period using the insulin-alone closed-loop system.

Interventions

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Insulin-alone closed-loop

40-hour intervention period using the insulin-alone closed-loop system.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. Male or female children between 2 and 13 years of age.
2. Clinical diagnosis of type 1 diabetes mellitus (the diagnosis of type 1 diabetes is based on the investigator's judgment).
3. Using insulin pump therapy for at least 3 months
4. For participants aged 7-13 years: Total daily insulin dose ≤ 40 units and 0.5 ≥ units/kg/day. For participants aged 2-6 years: Total daily insulin dose \[8, 40\] units and 0.3 ≥ units/kg/day.
5. Most recent (in the last 6 months) HbA1c ≤ 12%.

Exclusion Criteria

1. Using Medtronic 670G automated insulin delivery system (since participant's basal rates and insulin-to-carbohydrate ratios may reflect the use of 670G; generally overestimated by 20%).
2. Severe hypoglycaemia or ketoacidosis episode ≤ two months before admission.
3. Medical illness or other issues likely to interfere with study participation or with the ability to complete the trial by the judgment of the investigator.
Minimum Eligible Age

2 Years

Maximum Eligible Age

13 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Eli Lilly and Company

INDUSTRY

Sponsor Role collaborator

McGill University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Laurent Legault, MD

Role: PRINCIPAL_INVESTIGATOR

Montreal Children's Hospital of the MUHC

Locations

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McGill University Health Centre Research Institute

Montreal, Quebec, Canada

Site Status

Countries

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Canada

References

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Pickup JC, Keen H, Parsons JA, Alberti KG. Continuous subcutaneous insulin infusion: an approach to achieving normoglycaemia. Br Med J. 1978 Jan 28;1(6107):204-7. doi: 10.1136/bmj.1.6107.204.

Reference Type BACKGROUND
PMID: 340000 (View on PubMed)

Thabit H, Tauschmann M, Allen JM, Leelarathna L, Hartnell S, Wilinska ME, Acerini CL, Dellweg S, Benesch C, Heinemann L, Mader JK, Holzer M, Kojzar H, Exall J, Yong J, Pichierri J, Barnard KD, Kollman C, Cheng P, Hindmarsh PC, Campbell FM, Arnolds S, Pieber TR, Evans ML, Dunger DB, Hovorka R. Home Use of an Artificial Beta Cell in Type 1 Diabetes. N Engl J Med. 2015 Nov 26;373(22):2129-2140. doi: 10.1056/NEJMoa1509351. Epub 2015 Sep 17.

Reference Type BACKGROUND
PMID: 26379095 (View on PubMed)

Wasserman DH, Zinman B. Exercise in individuals with IDDM. Diabetes Care. 1994 Aug;17(8):924-37. doi: 10.2337/diacare.17.8.924. No abstract available.

Reference Type BACKGROUND
PMID: 7956645 (View on PubMed)

Tauschmann M, Allen JM, Nagl K, Fritsch M, Yong J, Metcalfe E, Schaeffer D, Fichelle M, Schierloh U, Thiele AG, Abt D, Kojzar H, Mader JK, Slegtenhorst S, Barber N, Wilinska ME, Boughton C, Musolino G, Sibayan J, Cohen N, Kollman C, Hofer SE, Frohlich-Reiterer E, Kapellen TM, Acerini CL, de Beaufort C, Campbell F, Rami-Merhar B, Hovorka R; KidsAP Consortium. Home Use of Day-and-Night Hybrid Closed-Loop Insulin Delivery in Very Young Children: A Multicenter, 3-Week, Randomized Trial. Diabetes Care. 2019 Apr;42(4):594-600. doi: 10.2337/dc18-1881. Epub 2019 Jan 28.

Reference Type BACKGROUND
PMID: 30692242 (View on PubMed)

Del Favero S, Boscari F, Messori M, Rabbone I, Bonfanti R, Sabbion A, Iafusco D, Schiaffini R, Visentin R, Calore R, Moncada YL, Galasso S, Galderisi A, Vallone V, Di Palma F, Losiouk E, Lanzola G, Tinti D, Rigamonti A, Marigliano M, Zanfardino A, Rapini N, Avogaro A, Chernavvsky D, Magni L, Cobelli C, Bruttomesso D. Randomized Summer Camp Crossover Trial in 5- to 9-Year-Old Children: Outpatient Wearable Artificial Pancreas Is Feasible and Safe. Diabetes Care. 2016 Jul;39(7):1180-5. doi: 10.2337/dc15-2815. Epub 2016 May 10.

Reference Type BACKGROUND
PMID: 27208335 (View on PubMed)

DeBoer MD, Breton MD, Wakeman C, Schertz EM, Emory EG, Robic JL, Kollar LL, Kovatchev BP, Chernavvsky DR. Performance of an Artificial Pancreas System for Young Children with Type 1 Diabetes. Diabetes Technol Ther. 2017 May;19(5):293-298. doi: 10.1089/dia.2016.0424. Epub 2017 Apr 20.

Reference Type BACKGROUND
PMID: 28426239 (View on PubMed)

Gingras V, Rabasa-Lhoret R, Messier V, Ladouceur M, Legault L, Haidar A. Efficacy of dual-hormone artificial pancreas to alleviate the carbohydrate-counting burden of type 1 diabetes: A randomized crossover trial. Diabetes Metab. 2016 Feb;42(1):47-54. doi: 10.1016/j.diabet.2015.05.001. Epub 2015 Jun 10.

Reference Type BACKGROUND
PMID: 26072052 (View on PubMed)

Taleb N, Emami A, Suppere C, Messier V, Legault L, Ladouceur M, Chiasson JL, Haidar A, Rabasa-Lhoret R. Efficacy of single-hormone and dual-hormone artificial pancreas during continuous and interval exercise in adult patients with type 1 diabetes: randomised controlled crossover trial. Diabetologia. 2016 Dec;59(12):2561-2571. doi: 10.1007/s00125-016-4107-0. Epub 2016 Oct 4.

Reference Type BACKGROUND
PMID: 27704167 (View on PubMed)

Haidar A, Messier V, Legault L, Ladouceur M, Rabasa-Lhoret R. Outpatient 60-hour day-and-night glucose control with dual-hormone artificial pancreas, single-hormone artificial pancreas, or sensor-augmented pump therapy in adults with type 1 diabetes: An open-label, randomised, crossover, controlled trial. Diabetes Obes Metab. 2017 May;19(5):713-720. doi: 10.1111/dom.12880. Epub 2017 Mar 8.

Reference Type BACKGROUND
PMID: 28094472 (View on PubMed)

Gingras V, Haidar A, Messier V, Legault L, Ladouceur M, Rabasa-Lhoret R. A Simplified Semiquantitative Meal Bolus Strategy Combined with Single- and Dual-Hormone Closed-Loop Delivery in Patients with Type 1 Diabetes: A Pilot Study. Diabetes Technol Ther. 2016 Aug;18(8):464-71. doi: 10.1089/dia.2016.0043. Epub 2016 May 18.

Reference Type BACKGROUND
PMID: 27191385 (View on PubMed)

Haidar A, Legault L, Matteau-Pelletier L, Messier V, Dallaire M, Ladouceur M, Rabasa-Lhoret R. Outpatient overnight glucose control with dual-hormone artificial pancreas, single-hormone artificial pancreas, or conventional insulin pump therapy in children and adolescents with type 1 diabetes: an open-label, randomised controlled trial. Lancet Diabetes Endocrinol. 2015 Aug;3(8):595-604. doi: 10.1016/S2213-8587(15)00141-2. Epub 2015 Jun 8.

Reference Type RESULT
PMID: 26066705 (View on PubMed)

Haidar A, Rabasa-Lhoret R, Legault L, Lovblom LE, Rakheja R, Messier V, D'Aoust E, Falappa CM, Justice T, Orszag A, Tschirhart H, Dallaire M, Ladouceur M, Perkins BA. Single- and Dual-Hormone Artificial Pancreas for Overnight Glucose Control in Type 1 Diabetes. J Clin Endocrinol Metab. 2016 Jan;101(1):214-23. doi: 10.1210/jc.2015-3003. Epub 2015 Nov 2.

Reference Type RESULT
PMID: 26523526 (View on PubMed)

Other Identifiers

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2020-5584

Identifier Type: -

Identifier Source: org_study_id

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