Assessment of a New Closed-loop Algorithm in Type 1 Diabetes (Saddle Point Model Predictive Control : SP-MPC) (PPA)

NCT ID: NCT02061488

Last Updated: 2023-05-24

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

COMPLETED

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-03-31

Study Completion Date

2014-07-31

Brief Summary

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The purpose of the study is to assess a new closed-loop algorithm in type 1 diabetes (Saddle Point Model Predictive Control : SP-MPC)

Detailed Description

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Ten patients will be assessed during a closed-loop night and an open-loop night in random order.

The primary objective is to assess the ability of SP-MPC controler to maintain euglycemia and avoid hypoglycaemia during the night, compared to open loop in type 1 diabetic patients treated by insulin pump.

Conditions

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Type 1 Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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open-loop night

Group Type ACTIVE_COMPARATOR

open-loop night

Intervention Type OTHER

During the open-loop night the patient is using his insulin pump as usual

closed-loop night

Group Type EXPERIMENTAL

closed-loop night

Intervention Type OTHER

During the closed-loop night glucose values measured by the sensor are collected every 15 minutes. The data are entered into the SP-MPC controler that calculate the insulin dose to be delivered. A diabetologist validates the insulin dose before the infusion (manually bolus infusion)

Interventions

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open-loop night

During the open-loop night the patient is using his insulin pump as usual

Intervention Type OTHER

closed-loop night

During the closed-loop night glucose values measured by the sensor are collected every 15 minutes. The data are entered into the SP-MPC controler that calculate the insulin dose to be delivered. A diabetologist validates the insulin dose before the infusion (manually bolus infusion)

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients with type 1 diabetes (C peptide negative) :
* 18 to 70 year old,
* with type 1 diabetes for more than 3 years,
* treated by insulin pump for more than 3 months,
* with previous CGM holter allowing preliminary settting of some of the SP-MPC parameters
* able to provide written informed consent.

Exclusion Criteria

* pregnancy or breastfeeding,
* severe non stabilized diabetic retinopathy,
* cardiovascular event in the previous 6 months,
* infectious diseases with recent fever,
* anemia (hemoglobin \< 11g/l),
* HbA1c \> 10%,
* Current or recent (less than 4 weeks) oral or injectable corticosteroid treatment,
* creatinine clearance \<40ml/mn,
* chronic alcoholism (weekly consumption of alcohol \> 280g for men and \> 140g for women),
* adults legally protected (under judicial protection, guardianship, or supervision), persons deprived of their liberty
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Rennes University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Isabelle Guilhem

Role: PRINCIPAL_INVESTIGATOR

Rennes University Hospital

Locations

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Rennes University Hospital

Rennes, , France

Site Status

Countries

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France

References

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Guilhem I, Penet M, Paillard A, Carpentier M, Esvant A, Lefebvre MA, Poirier JY. Manual Closed-Loop Insulin Delivery Using a Saddle Point Model Predictive Control Algorithm: Results of a Crossover Randomized Overnight Study. J Diabetes Sci Technol. 2017 Sep;11(5):1007-1014. doi: 10.1177/1932296817717503. Epub 2017 Jul 5.

Reference Type RESULT
PMID: 28677416 (View on PubMed)

Other Identifiers

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35RC13_8806_PPA

Identifier Type: OTHER

Identifier Source: secondary_id

2013-A01604-41

Identifier Type: -

Identifier Source: org_study_id

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