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Cystic Fibrosis-related DiabetesD2MNCT02723968

Cystic Fibrosis Related Diabetes Screening.

A study testing glucose solution at a dose of 1.75 g/kg (up to a maximum of 75 g) for the OGTT and glucose solution at a dose of 0.5 g/kg (up to a maximum of 35 g) was injected in 2.5-3 min for the IGTT, HGPIV diagnosis test and HOMAR-IR diagnosis test in people with Cystic Fibrosis-related Diabetes, run by Hospices Civils de Lyon.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Cystic fibrosis-related diabetes is a late cystic fibrosis (CF) associated comorbidity whose prevalence is increasing sharply lifelong. Guidelines for glucose metabolism (GM) monitoring relies on oral glucose tolerance test . However, this test is neither sensitive nor specific. Read more about this study

Who is it for?
Ages 10 to 18 years
Conditions the study is for
Cystic Fibrosis-related Diabetes
What is being tested?
glucose solution at a dose of 1.75 g/kg (up to a maximum of 75 g) for the OGTT and glucose solution at a dose of 0.5 g/kg (up to a maximum of 35 g) was injected in 2.5-3 min for the IGTT, HGPIV diagnosis test and HOMAR-IR diagnosis test
Could I receive a placebo?
No, everyone receives an active treatment
How many people
29 participants
Where
No sites listed yet
Study dates
Sep 2009to Apr 2012
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 10 to 18 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Subjects with confirmed diagnosis of Cystic Fibrosis with a sweat chloride > 60 mmol/L.
  • Subjects will be aged between 10 and 18 years with at least one class 1 or 2 Cystic fibrosis transmembrane conductance regulator (CFTR) mutation.
  • Subjects will be pancreatic insufficient.
  • Subjects must have a forced expiratory volume 1 (FEV1)> 40 % of predicted normal for age, sex and height at the screening visit.
  • Stable CF disease as judged by the investigator

Who cannot join

  • Subjects with glucose intolerance abnormalities
  • Subjects with pulmonary exacerbation within 4 weeks before screening
  • History of lung or hepatic transplantation or awaiting transplantation

About this study

Official title: Sensitivity and Specificity of Different Methods for Cystic Fibrosis-related Diabetes Screening.

Cystic fibrosis-related diabetes is a late cystic fibrosis (CF) associated comorbidity whose prevalence is increasing sharply lifelong. Guidelines for glucose metabolism (GM) monitoring relies on oral glucose tolerance test . However, this test is neither sensitive nor specific.

The aim of this study is to compare sensitivity and specificity of different methods for GM monitoring in children and adolescents with CF.

Continuous GM system (CGMS) will be used as the reference method. Results will be compared to those of oral glucose tolerance test (OGTT), intravenous glucose tolerance test (IGTT), homeostasis model assessment index of insulin resistance (HOMA-%IR) , homeostasis model assessment index of beta-cell function (HOMA-%B) and HbA1C dosage (glycated haemoglobin A1C). Patients will be classified into three groups according to CGMS: normal glucose tolerance, impaired glucose tolerance and diabetes mellitus.

Being tested
glucose solution at a dose of 1.75 g/kg (up to a maximum of 75 g) for the OGTT and glucose solution at a dose of 0.5 g/kg (up to a maximum of 35 g) was injected in 2.5-3 min for the IGTT, HGPIV diagnosis test, HOMAR-IR diagnosis test

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • glucose solution at a dose of 1.75 g/kg (up to a maximum of 75 g) for the OGTT and glucose solution at a dose of 0.5 g/kg (up to a maximum of 35 g) was injected in 2.5-3 min for the IGTTOther

    At the first visit at day 1an OGTT will be performed then the CGMS is implanted. Capillary glycaemia will be taken four times a day to set up the CGMS. A second visit is scheduled at day 4, where the intravenous glucose tolerance test is performed as well as the HbA1C level.

  • HGPIV diagnosis testProcedure or surgery

  • HOMAR-IR diagnosis testProcedure or surgery

Study groups in NCT02723968
Study groupRoleWhat they receive
Continuous glucose monitoring systemOtherOGTT followed by continuous glucose monitoring system and finally IGTT and HbA1C dosage
Receives: Other: glucose solution at a dose of 1.75 g/kg (up to a maximum of 75 g) for the OGTT and glucose solution at a dose of 0.5 g/kg (up to a maximum of 35 g) was injected in 2.5-3 min for the IGTT; Procedure: HGPIV diagnosis test; Procedure: HOMAR-IR diagnosis test

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Measurement of the sensitivity and the specificity of IGTT (intravenous glucose tolerance test) for the diagnosis of diabetes mellitus in comparison to a continuous glucose monitoring system

    Measured: Day 3

  2. Measurement of the sensitivity and the specificity of HOMA-%IR (homeostasis model assessment index of insulin resistance) for the diagnosis of diabetes mellitus in comparison to a continuous glucose monitoring system.

    Measured: Day 3

Secondary outcomes (4)
  1. Measurement of the prevalence of diabetes mellitus.

    Measured: Day 3

  2. Correlation between IGTT and HOMA-%IR data and HbA1C dosage (glycated haemoglobin A1C).

    Measured: Day 3

  3. Measurement of glucose intolerance

    Measured: Day 3

  4. Correlation between IGTT and HbA1C dosage (glycated haemoglobin A1C).

    Measured: Day 3

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Mar 2016 (estimated)
  2. Study startSep 2009
  3. Primary completionSep 2009
  4. Study completionApr 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Screening
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
29 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02723968
Sponsor's protocol ID
2008.527
Acronym
D2M
Status last verified
Mar 2016
First submitted
21 Mar 2016
Last updated
28 May 2019
Results posted
No
Data monitoring committee
No

Publications

  • Mainguy C, Bellon G, Delaup V, Ginoux T, Kassai-Koupai B, Mazur S, Rabilloud M, Remontet L, Reix P. Sensitivity and specificity of different methods for cystic fibrosis-related diabetes screening: is the oral glucose tolerance test still the standard? J Pediatr Endocrinol Metab. 2017 Jan 1;30(1):27-35. doi: 10.1515/jpem-2016-0184.

    PubMed 27977404

Questions about this trial

What is this clinical trial studying?

A study testing glucose solution at a dose of 1.75 g/kg (up to a maximum of 75 g) for the OGTT and glucose solution at a dose of 0.5 g/kg (up to a maximum of 35 g) was injected in 2.5-3 min for the IGTT, HGPIV diagnosis test and HOMAR-IR diagnosis test in people with Cystic Fibrosis-related Diabetes, run by Hospices Civils de Lyon.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 May 2019. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Measurement of the sensitivity and the specificity of IGTT (intravenous glucose tolerance test) for the diagnosis of diabetes mellitus in comparison to a continuous glucose monitoring system (time frame: Day 3). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02723968, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 May 2019.

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