ClinicalTrials.gg
Active, not recruitingNCT05944432Updated Oct 13, 2026

CGM Use in Adults With Type 2 Diabetes on Basal Insulin

An interventional study of FreeStyle Libre 3 Continuous Glucose Monitoring System. and Self monitoring of blood glucose in Diabetes Mellitus, Type 2, sponsored by Abbott Diabetes Care. Active, not recruiting at 25 sites in United Kingdom. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-13.

Sponsored by Abbott Diabetes Care (part of Abbott) · Not applicable, Interventional, and Treatment

Updated Oct 13, 2026Start date movedGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
469
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

A prospective multi-centre, open-label, two arm, parallel design, superiority, pragmatic, randomised controlled trial, over an 8-month period. The purpose of this study is to determine whether continuous glucose monitoring using FreeStyle Libre 3 will improve HbA1c compared to SMBG over 16 weeks in adults with sub-optimally controlled (HbA1c 7.5-11%) Type 2 diabetes on basal therapy.

Following completion of the 8-month period for all participants, an optional non-interventional follow-up period will assess glycaemic control and treatment patterns over 24 months.

Read the detailed description

The study will assess change in HbA1c as the primary endpoint. Other endpoints related to glycaemic control are included in the analyses. The study is split into two phases each of four months duration: participant-driven (phase 1) and HCP/therapy-driven (phase 2). Participants will be randomised to either FreeStyle Libre 3 or to continuation with their current SMBG device.

02

Conditions studied

  • Diabetes Mellitus, Type 2
03

In context

Diabetes Mellitus, Type 2

10,371 studies on the registry are indexed under Diabetes Mellitus, Type 2; 1,406 are open to participants now.

This study's enrollment of 469 is above the median of 80 across 8,350 interventional studies indexed under Diabetes Mellitus, Type 2.

Browse Diabetes Mellitus, Type 2 studies →

Lead sponsor

Abbott Diabetes Care is the lead sponsor of 43 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Aged 18 years or over.
  • Type 2 diabetes diagnosis for ≥1 year prior to enrolment.
  • Type 2 diabetes treated with a basal insulin injection regimen and SGLT2 inhibitor and/or GLP-1.
  • Screening ≥59 mmol/mol to ≤97 mmol/mol (≥7.5% and ≤11.0%, inclusive).

Exclusion criteria

Exclusion Criteria:

  • Participant is currently prescribed prandial or pre-mixed (biphasic) insulin at enrolment.
  • Currently participating in another study that could affect glucose measurements or glucose management.
  • A female participant who is pregnant.
  • A breastfeeding female participant.
  • Bariatric surgical procedure within the past 12 months or is planning/scheduled for bariatric surgery within the study duration.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
469 participants (actual)

Study arms

  • Active comparator
    FreeStyle Libre system

    FreeStyle Libre 3 continuous glucose monitoring system

    Device: FreeStyle Libre 3 Continuous Glucose Monitoring System.

  • Other
    Standard of care (control)

    Self monitoring of blood glucose

    Device: Self monitoring of blood glucose

Interventions

  • DeviceFreeStyle Libre 3 Continuous Glucose Monitoring System.

    Subjects will be randomised to use the FreeStyle Libre 3 system

  • DeviceSelf monitoring of blood glucose

    Subjects will be randomised to continue with their current glucose monitoring system

06

What researchers measure

Primary outcomes

  1. HbA1c

    Difference between treatment groups in mean change from baseline in HbA1c.

    Time frame: 16 weeks

Secondary outcomes

  1. HbA1c

    Difference between treatment groups in mean change from baseline in HbA1c

    Time frame: 32 weeks

  2. Time in range (TIR)

    Time spent in glucose target range (TIR) 3.9 to 10.0 mmol/L (70 to 180 mg/dL).

    Time frame: 32 weeks

  3. Time above range (TAR)

    Time spent above glucose target range (TAR) \>10.0 mmol/L, 13.9 mmol/L and 16.7 mmol/L (\>180 mg/dL, \>250 mg/dL and \>300 mg/dL).

    Time frame: 32 weeks

  4. Time below range(TBR)

    Time spent below glucose target range (TBR) \<3.9 mmol/L and \<3.0 mmol/L (\<70 mg/dL and \<54 mg/dL).

    Time frame: 32 weeks

  5. Frequency of hypoglycaemia events

    CGM detected hypoglycaemia events defined as ≥15 minutes duration with glucose \<3.9 mmol/L (\<70 mg/dL).

    Time frame: 32 weeks

07

Study locations

25 sites
08

References and documents

Publications

  • Wilmot EG, Moore P, Sathyapalan T, Choudhary P, Lim JZM, Neupane S, Crabtree TSJ, Iqbal A, Evans ML, Rayman G, Price HC, Ajjan RA, Cheah YS, Lumb A, Mostafa S, Malik I, Cranston I, Min T, Jude EB, Seechurn S, McLaren J, Barnard-Kelly K, Yates T, Elliott RA, Leelarathna L; FreeDM2 Study Group. Continuous glucose monitoring versus self-monitoring of blood glucose in individuals with type 2 diabetes: a randomised, multicentre, open-label, superiority trial. Lancet Diabetes Endocrinol. 2026 Jun;14(6):463-474. doi: 10.1016/S2213-8587(26)00076-8. Epub 2026 Apr 23. PubMed 42035781 ↗
  • Wilmot EG, Ajjan RA, Cheah YS, Choudhary P, Cranston I, Elliott RA, Evans M, Iqbal A, Kamaruddin S, Barnard-Kelly K, Lumb A, Min T, Moore P, Narendran P, Neupane S, Rayman G, Sathyapalan T, Thabit H, Yates T, Leelarathna L. Impact of real-time glucose monitoring using FreeStyle Libre 3 on glycaemia in type 2 diabetes managed with basal insulin plus SGLT2 inhibitor and/or GLP-1 agonist: the FreeDM2 randomised controlled trial protocol. BMJ Open. 2025 Apr 15;15(4):e090154. doi: 10.1136/bmjopen-2024-090154. PubMed 40233956 ↗

Individual participant data

Plan to share: Yes — Individual participant data that underlie the results reported in the primary study manuscript after deidentification (text, tables, figures and appendices) for the purposes of individual participant data meta-analysis.

Supporting information: Study protocol, Informed consent form

Time frame: Beginning 9 months and ending 3 years (36 months) following article publication

Access criteria: Researchers undertaking individual participant data meta-analysis who provide a methodologically sound proposal, approved by an independent review committee, and not overlapping with any planned secondary publications from the research team. Proposals should be directed to the corresponding author of the article who will discuss such requests with the study investigator team. To gain access, data requesters will need to sign a data access agreement. Data will be available for up to 3 years (36 months) following article publication.

09

Updates

1 registry update since Sep 25, 2026
Start date
Jul 14, 2023→Jul 26, 2023
Oct 13, 2026
Show all 1 update
  1. Oct 13, 2026
    Start date Jul 14, 2023→Jul 26, 2023
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT05944432
Responsible party
Sponsor
First posted
Jul 13, 2023
Start date
Jul 26, 2023
Primary completion
Feb 19, 2026
Completion
Nov 30, 2027 (estimated)
Last update
Oct 13, 2026

Study contacts

Pamela Reid
study director · Abbott Diabetes Care Ltd

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

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