DiabetesNCT07102498
A Comparison of Different Units for Blood Glucose (mmol/L and mg/dl) and Hemoglobin A1c (% and mmol/Mol) Results.
A study testing BG mmol/L, BG mg/dl and A1c percent in people with Diabetes, run by Laval University.
Trial summary
A comparison of people's reactions to hypothetical test results using different units. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Diabetes
- What is being tested?
- BG mmol/L, BG mg/dl and A1c percent
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 350 participants
- Where
- No sites listed yet
- Study dates
- 24 Jul 2025to 31 Aug 2025
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Able to use a computer
- Able to use the internet
- Able to read and respond to questions in English or French
- Adults 18+ years old living in Canada
Who cannot join
- Not meeting inclusion criteria
Trial locations and contacts
No sites are listed yet. Contact the study team or a site near you to ask about taking part.
About this study
Official title: A Comparison of Units Used for Blood Glucose and HbA1c Testing
A comparison of people's reactions to hypothetical test results using different units.
Read the detailed description
Comparing how people respond to hypothetical blood glucose results in mg/dl units versus mmol/L units, and also how they respond to hypothetical HbA1c results in % units versus mmol/mol units.
- Conditions
- Diabetes
- Being tested
- BG mmol/L, BG mg/dl, A1c percent, A1c mmol/mol
- Medical subject headings
- Diabetes Mellitus
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
BG mmol/LBehavioural
BG presented in mmol/L (the standard presentation in Canada)
BG mg/dlBehavioural
BG presented in mg/dl
A1c percentBehavioural
HbA1c presented in percent (the standard presentation in Canada)
A1c mmol/molBehavioural
HbA1c presented in mmol/mol
| Study group | Role | What they receive |
|---|---|---|
| bgmmol a1cpercent | Placebo comparator | BG presented in mmol/L and HbA1c presented in percent Receives: Behavioral: BG mmol/L; Behavioral: A1c percent |
| bgmmol a1cmmol | Experimental | BG presented in mmol/L and HbA1c presented in mmol/mol Receives: Behavioral: BG mmol/L; Behavioral: A1c mmol/mol |
| bgmgdl a1cpercent | Experimental | BG presented in mg/dl and HbA1c presented in percent Receives: Behavioral: BG mg/dl; Behavioral: A1c percent |
| bgmgdl a1cmmol | Experimental | BG presented in mg/dl and HbA1c presented in mmol/mol Receives: Behavioral: BG mg/dl; Behavioral: A1c mmol/mol |
What is being measured
The primary outcome is the main question the study is designed to answer.
Opinion about result
Participants' views about the results presented in different units. The exact question wording is: "In your view and based only on the information you have, what is your opinion of this result?" Participants indicate their response on a visual analog scale (a slider) from 0 to 100 with labels "It is not a problem at all" = 0, "I don't know" = 50, or "It is a big problem" = 100.
Measured: Immediately after the intervention
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Aug 2025
- Study start24 Jul 2025 (estimated)
- Primary completion31 Aug 2025 (estimated)
- Study completion31 Aug 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for DiabetesStudies of the same condition, open and under way.
- More trials run by Laval UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Health services research
- Allocation
- Randomised
- Intervention model
- Factorial
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 350 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Laval University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07102498
- Sponsor's protocol ID
- units
- Status last verified
- Jul 2025
- First submitted
- 28 Jul 2025
- Last updated
- 3 Aug 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Anonymized data will be shared on Borealis.
Study at a glance
From the registry record, last updated by the sponsor on 3 Aug 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Comparison of Units Used for Blood Glucose and HbA1c Testing
- ClinicalTrials.gov ID
- NCT07102498
- Acronym / sponsor ID
- units
- Conditions
- Diabetes
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 350 participants (estimated)
- Lead sponsor
- Laval UniversityUniversity, hospital or other
- Study start
- 24 Jul 2025 (estimated)
- Primary completion
- 31 Aug 2025 (estimated)
- Study completion
- 31 Aug 2025 (estimated)
- First posted
- 3 Aug 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
A comparison of people's reactions to hypothetical test results using different units.
Detailed description
Comparing how people respond to hypothetical blood glucose results in mg/dl units versus mmol/L units, and also how they respond to hypothetical HbA1c results in % units versus mmol/mol units.
Study design
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Factorial
- Masking
- Single blind (participant)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| bgmmol a1cpercent | Placebo comparator | Behavioral: BG mmol/L, Behavioral: A1c percentBG presented in mmol/L and HbA1c presented in percent |
| bgmmol a1cmmol | Experimental | Behavioral: BG mmol/L, Behavioral: A1c mmol/molBG presented in mmol/L and HbA1c presented in mmol/mol |
| bgmgdl a1cpercent | Experimental | Behavioral: BG mg/dl, Behavioral: A1c percentBG presented in mg/dl and HbA1c presented in percent |
| bgmgdl a1cmmol | Experimental | Behavioral: BG mg/dl, Behavioral: A1c mmol/molBG presented in mg/dl and HbA1c presented in mmol/mol |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Able to use a computer
- Able to use the internet
- Able to read and respond to questions in English or French
- Adults 18+ years old living in Canada
Key exclusion criteria (1 listed)
- Not meeting inclusion criteria
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| BG mmol/LBG presented in mmol/L (the standard presentation in Canada) | Behavioural | bgmmol a1cmmol, bgmmol a1cpercent |
| BG mg/dlBG presented in mg/dl | Behavioural | bgmgdl a1cmmol, bgmgdl a1cpercent |
| A1c percentHbA1c presented in percent (the standard presentation in Canada) | Behavioural | bgmgdl a1cpercent, bgmmol a1cpercent |
| A1c mmol/molHbA1c presented in mmol/mol | Behavioural | bgmgdl a1cmmol, bgmmol a1cmmol |
Primary outcome
Opinion about result
Time frame: Immediately after the intervention
Participants' views about the results presented in different units. The exact question wording is: "In your view and based only on the information you have, what is your opinion of this result?" Participants indicate their response on a visual analog scale (a slider) from 0 to 100 with labels "It is not a problem at all" = 0, "I don't know" = 50, or "It is a big problem" = 100.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Aug 2025.
- Individual participant dataSharing planned: Yes. Anonymized data will be shared on Borealis.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Questions about this trial
What is this clinical trial studying?
A study testing BG mmol/L, BG mg/dl and A1c percent in people with Diabetes, run by Laval University.
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 4 inclusion and 1 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: opening soon, as of the sponsor's last update on 3 Aug 2025. 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. Some participants in this study may receive a placebo. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Holly Witteman (418-656-2131, holly.witteman@fmed.ulaval.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Opinion about result (time frame: Immediately after the intervention). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 3 Aug 2025.