NCT05516797

Brief Summary

The purpose of this study is to learn whether there is a difference in the amount of time glucose (blood sugar) stays within a target range (glucose 70 - 180 mg/dl) when using either continuous glucose monitoring (CGM) or fingerstick blood glucose monitoring (BGM) in people with Type 2 diabetes who participate in the Virta Treatment program.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
178

participants targeted

Target at P75+ for not_applicable type-2-diabetes

Timeline
Completed

Started Sep 2022

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

August 9, 2022

Completed
17 days until next milestone

First Posted

Study publicly available on registry

August 26, 2022

Completed
27 days until next milestone

Study Start

First participant enrolled

September 22, 2022

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2024

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

March 26, 2025

Completed
Last Updated

March 26, 2025

Status Verified

March 1, 2025

Enrollment Period

1.4 years

First QC Date

August 9, 2022

Results QC Date

February 11, 2025

Last Update Submit

March 10, 2025

Conditions

Keywords

Continuous Glucose Monitoring (CGM)Blood Glucose Monitoring (BGM)Nutrition Therapy

Outcome Measures

Primary Outcomes (1)

  • Difference in Change in 14-day CGM-derived TIR From (3 Months Minus Baseline)

    Change in 14-day CGM-derived TIR (% time with glucose 70-180 mg/dL) from Baseline to 3-month Post-Dietary Change period between participants with T2D who are randomized to use either BGM or CGM (3 months minus baseline)

    Three (3) months

Secondary Outcomes (3)

  • 90-day Mean Blood Ketone Levels

    Three (3) months / 90 days

  • Participants Reaching CGM-derived Consensus Targets

    Three (3) months

  • Difference in Change in HbA1c

    Three (3) months

Other Outcomes (5)

  • Difference in Change in CGM-derived Metric %Time Above Range >180 mg/dL During 3-month Post-Dietary Change Period (3 Month Minus Baseline)

    Three (3) months

  • Difference in Change in the CGM-derived Metric, %Time Below Range <70 mg/dL (3 Months Minus Baseline)

    3 months (baseline to three months)

  • Difference in Change in the CGM-derived Metric %Time Below Range <54 mg/dL, From Baseline to 3-month Post-Dietary Change Period (3 Months Minus Baseline)

    Three (3) months (baseline to three months)

  • +2 more other outcomes

Study Arms (2)

Continuous Glucose Monitoring (CGM)

EXPERIMENTAL

Participants in this arm will use the FreeStyle Libre 2 CGM sensor.

Device: Continuous Glucose Monitoring (CGM)

Blood Glucose Monitoring (BGM)

NO INTERVENTION

Participants in this arm will use the Precision Xtra fingerstick blood glucose meter throughout the study.

Interventions

Use of CGM (FreeStyle Libre 2) compared to BGM for glucose monitoring

Continuous Glucose Monitoring (CGM)

Eligibility Criteria

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

You may qualify if:

  • Age \> 18 years
  • U.S. residence with plans to remain in the U.S. for study duration (for shipping purposes)
  • Diagnosis of T2D
  • HbA1c between 7.5-11.5% documented within 60 days prior to consent
  • Stable diabetes medication regimen and lifestyle patterns (eating and activity) within approximately 90 days prior to consent
  • Using at least one glucose-lowering medication (oral or injectable) for diabetes management at the time of consent; if using insulin, this may include up to a total of three or fewer insulin injections per day (e.g., once or twice daily basal insulin, once or twice daily basal insulin plus one prandial insulin dose, once or twice daily pre-mix insulin, or another combination etc.)
  • English language comprehension
  • Confirmed download of FreeStyle Libre 2 app on personal smartphone with access to WiFi
  • Willing and able to record study data using smartphone, tablet, and/or computer
  • Willing to wear and use study-provided CGM devices for up to 7 months
  • Willing to perform fingersticks to test blood glucose
  • Willing to perform fingersticks to test blood ketones twice daily
  • Eligible to initiate and intention to participate in the dietary changes required as part of the Virta Treatment for at least 7 months

You may not qualify if:

  • Type 1 diabetes
  • Currently using an insulin pump or multiple daily injection insulin therapy with \>3 insulin injections per day or using bolus injections to cover every meal
  • Currently following a self-reported, very low-carbohydrate eating pattern
  • Currently using a personal CGM or plans to use a personal CGM during the study period
  • Advanced-stage renal, cardiac, hepatic, or other chronic disease
  • History of ketoacidosis
  • Pregnant, lactating, or planned pregnancy
  • Allergy to medical grade adhesive or isopropyl alcohol used to disinfect skin
  • Participation in another interventional trial at the time of enrollment or during the study period
  • Participant is unsuitable for participation due to any cause as determined by Investigators

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Health Partners Institute dba International Diabetes Center

Minneapolis, Minnesota, 55416, United States

Location

MeSH Terms

Conditions

Diabetes Mellitus, Type 2

Interventions

Continuous Glucose Monitoring

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Intervention Hierarchy (Ancestors)

Blood Chemical AnalysisClinical Chemistry TestsClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisDiagnostic Techniques, EndocrineMonitoring, PhysiologicInvestigative Techniques

Limitations and Caveats

CGM was compared with BGM in people with T2D; however, many people with T2D do not regularly use glucose monitoring, it would have been ideal to compare both groups to a third arm that was not using any glucose monitoring.

Results Point of Contact

Title
Holly Willis
Organization
HealthPartners Institute

Study Officials

  • Holly Willis, PhD

    HealthPartners Institute dba International Diabetes Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 9, 2022

First Posted

August 26, 2022

Study Start

September 22, 2022

Primary Completion

March 1, 2024

Study Completion

March 1, 2024

Last Updated

March 26, 2025

Results First Posted

March 26, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will not share

Locations