NCT05207020

Brief Summary

This clinical study aims to finalize the algorithm and assess the performance of the BOYDSense® breath glucose monitoring system prototype in patients living with type 2 diabetes.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
130

participants targeted

Target at P50-P75 for not_applicable diabetes-mellitus-type-2

Timeline
Completed

Started Dec 2021

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 30, 2021

Completed
1 day until next milestone

Study Start

First participant enrolled

December 1, 2021

Completed
2 months until next milestone

First Posted

Study publicly available on registry

January 26, 2022

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 9, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 9, 2023

Completed
Last Updated

February 13, 2023

Status Verified

February 1, 2023

Enrollment Period

1.2 years

First QC Date

November 30, 2021

Last Update Submit

February 10, 2023

Conditions

Keywords

Type 2 diabetes mellitusself monitoring of blood glucose,breath glucose monitoring system

Outcome Measures

Primary Outcomes (4)

  • Collect glucose values

    Collect successive fasting blood glucose values in patients with type 2 diabetes

    1 day

  • Collect glucose values

    Collect successive blood glucose values after taking a test meal, in patients with type 2 diabetes

    1day

  • Collect glucose values (fasting)

    Measurement of blood glucose by the exhaled air analyzer from volatile compounds in exhaled air (fasting)

    1 day

  • Collect glucose values (after a test meal)

    Measurement of blood glucose by the exhaled air analyzer from volatile compounds in exhaled air (after taking a test meal))

    1 day

Study Arms (1)

Blood sugar levels estimated by analysis of exhaled air

EXPERIMENTAL
Device: Glycemia estimated by exhaled air analyzerBehavioral: QuestionnaireBiological: Veinous glycemiaBiological: Capillary glycemiaBiological: constitution biological collectionBiological: Blood sampleOther: Test meal

Interventions

Measurement of volatile compounds in the air exhaled by the volunteer on 3 different MIBs (3 breaths in total) at 7 times: T0, 30min, 1H, 1H30, 2H, 2H30, 3H after test meal

Blood sugar levels estimated by analysis of exhaled air
QuestionnaireBEHAVIORAL

The questionnaire focuses on the methods and feelings of the blood glucose self-monitoring that he is currently carrying out, a first feedback on user experience on the operation of the prototype and the collection of his expectations for a future commercial device

Blood sugar levels estimated by analysis of exhaled air

Measurement of the veinous glycemia at 7 times: T0, 30min, 1H, 1H30, 2H, 2H30, 3H after test meal

Blood sugar levels estimated by analysis of exhaled air

7-step capillary glycemia measurement: T0, 30min, 1H, 1H30, 2H, 2H30, 3H after test meal

Blood sugar levels estimated by analysis of exhaled air

Sampling for storage of serum at 7 times: T0, 30min, 1H, 1H30, 2H, 2H30, 3H after test meal

Blood sugar levels estimated by analysis of exhaled air
Blood sampleBIOLOGICAL

Single blood sample before mealtimes for HbA1C molecular analysis

Blood sugar levels estimated by analysis of exhaled air

taking a test meal before the various blood sugar measurements

Blood sugar levels estimated by analysis of exhaled air

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Type 2 diabetes diagnosed for at least 3 months.
  • Acceptance of constraints related to participation in the study.
  • Acceptance to participate in the constitution of a plasma library.
  • Ability to sign informed consent.
  • Affiliation to a social security scheme.

You may not qualify if:

  • Ongoing prandial insulin therapy
  • Treated bacterial or viral respiratory infection in the 2 weeks preceding the meal test.
  • Surgical intervention under general anesthesia in the last 12 weeks.
  • Asthmatic subjects with bronchospasm or under chronic inhaled therapy.
  • Ongoing COVID-19 (PCR +) or contact case in the isolation period.
  • Pregnancy or breast-feeding.
  • Patient under guardianship, curatorship or legal protection.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Service de Diabétologie, maladies métaboliques et nutrition, CHU Toulouse, 1 avenue Jean Pouilhes, TSA 50032

Toulouse, 31059, France

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 2

Interventions

Surveys and QuestionnairesBlood Specimen Collection

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Intervention Hierarchy (Ancestors)

Data CollectionEpidemiologic MethodsInvestigative TechniquesHealth Care Evaluation MechanismsQuality of Health CareHealth Care Quality, Access, and EvaluationPublic HealthEnvironment and Public HealthSpecimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisPuncturesSurgical Procedures, Operative

Study Officials

  • Pierre GOURDY, MD, PhD

    University Hospital, Toulouse

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Model Details: Single group with a device
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 30, 2021

First Posted

January 26, 2022

Study Start

December 1, 2021

Primary Completion

February 9, 2023

Study Completion

February 9, 2023

Last Updated

February 13, 2023

Record last verified: 2023-02

Data Sharing

IPD Sharing
Will not share

Locations