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Type2DiabetesNCT05370612

AT GOAL: Adopting Technology for Glucose Optimization and Lifestyle in Pregnancy

A study testing Dexcom G6 CGM and Participant Finger Stick Glucose Monitoring in people with Type2Diabetes and Pregnancy in Diabetic, run by University of Wisconsin, Madison at 1 site in United States.

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

This study will assess differences in patient preferences and glucose control between continuous glucose monitoring and standard glucose checks in pregnant patients with Type 2 Diabetes. 40 participants will be on study for approximately 182 days (26 weeks). Read more about this study

Who is it for?
Ages 18 to 45 years, women only
Conditions the study is for
Type2Diabetes, Pregnancy in Diabetic
What is being tested?
Dexcom G6 CGM and Participant Finger Stick Glucose Monitoring
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteUnited States
Study dates
8 Aug 2022to 6 Oct 2024
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 to 45 years
  • Women only
  • No healthy volunteers
  • Adult

Who may be able to join

  • Age greater than or equal to 18 years of age at enrollment
  • Ability to consent in English
  • Gestational age less than or equal to 19 weeks 6 days at enrollment
  • Appropriate dating by certain LMP or ultrasound performed less than or equal to 19 weeks 6 day
  • Diagnosis of Type 2 Diabetes less than or equal to 19 weeks 6 days
  • Singleton gestation

Who cannot join

  • Age less than 18 years of age at enrollment
  • Lack of appropriate dating
  • Multiple gestations
  • Use of concentrated insulin at enrollment (ie U500)
  • Preexisting CGM in place
  • Chronic use of medications known to cause hyperglycemia, such as HIV antiretrovirals and inhaled, injectable and oral corticosteroids
  • Be unwilling or unable to present to Center for Perinatal Care for visits

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Wisconsin

    Madison, Wisconsin, 53715

Other trials in United States

About this study

Official title: Continuous Glucose Monitoring in Pregnant Patients With Type 2 Diabetes, a Mixed Methods Approach

This study will assess differences in patient preferences and glucose control between continuous glucose monitoring and standard glucose checks in pregnant patients with Type 2 Diabetes. 40 participants will be on study for approximately 182 days (26 weeks).

Read the detailed description

This pilot single site randomized control trial will compare the blood glucose control and participant satisfaction scores of continuous glucose monitoring vs standard glucose checks in pregnant women with a prior diagnosis of Type 2 diabetes.

The study population will consist of 40 women who are less than 20 weeks pregnant at time of enrollment who have a pre-pregnancy diagnosis of Type 2 diabetes. Participants will be randomized to one of two treatment arms.

  • Arm 1: Placement of Dexcom G6 continuous glucose monitor for glucose monitoring for duration of pregnancy
  • Arm 2: Continuation of standard glucose finger sticks with placement of a blinded Dexcom Pro G6 continuous glucose sensor for two ten day periods (at enrollment and again at 28-32 weeks gestation)

Participant accrual will occur over 18 months at 1 site. Participants will complete 3 study visits, all of which will be in conjunction with previously scheduled prenatal or diabetes visits: at the time of consent (less than 20 weeks gestation), 28-32 weeks gestation, and 2-6 weeks postpartum.. Surveys will be administered at each time point. At the final visit, patients will be asked for participate in a 2-5 minute directed interview as well.

  • Primary Objective
  • To examine the feasibility of completing a study to assess for differences in patient preferences and glucose control between continuous glucose monitoring and standard glucose checks in pregnant patients with Type 2 Diabetes.
  • Secondary Objectives
  • To estimate the effect of continuous glucose monitoring devices placed prior to 20 weeks in pregnancy in patients with Type 2 diabetes on time in range, as measured between 28-32 weeks of pregnancy.
  • To assess patient satisfaction to continuous glucose monitoring during pregnancy
  • To estimate the effect of continuous glucose monitoring on the incidence of neonatal morbidity and mortality.
Being tested
Dexcom G6 CGM, Participant Finger Stick Glucose Monitoring
Medical subject headings
Pregnancy in Diabetics

What participants receive

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

  • Dexcom G6 CGMDevice

    Dexcom 6 CGM, an FDA approved device. Sensors will be placed on the abdomen per package instruction to collect continuous glucose data.

    Experimental Group will wear CGM for the duration of their pregnancy.

    Control Group will have CGM data collected for 10 days at enrollment and at 28-32 weeks into their pregnancy.

  • Participant Finger Stick Glucose MonitoringOther

    Also called Glucose Monitor

    Standard of care for individual participant

Study groups in NCT05370612
Study groupRoleWhat they receive
Arm 1: Continuous Glucose Monitor (CGM)ExperimentalCGM for duration of pregnancy.
Receives: Device: Dexcom G6 CGM
Arm 2: Point of Care Glucose Testing (POCT)Active comparatorPoint of care finger sticks for glucose monitoring. At two time points during the study - at time of enrollment and at 28-32 weeks gestation, CGM sensor will be placed and remain in place for 10 days. Participant and Physician will be blinded to CGM data.
Receives: Device: Dexcom G6 CGM; Other: Participant Finger Stick Glucose Monitoring

What is being measured

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

  1. Feasibility: Number of Participants Who Complete the Study Within 24 Month Time Period

    Completion of the study within the 24-month timeframe, including recruitment, randomization, retention, and completion of 36 out of 40 subjects will be a measure of how feasible the intervention is.

    Measured: up to 24 months

  2. Change in Qualitative Survey Answers to Assess Participant Thoughts and Experiences With Diabetes Management

    Individualized postpartum interviews and qualitative surveys administered at each time point will be used to gather information about participants thoughts and experiences in both arms of the trial about their ability to manage diabetes in pregnancy. Interviews will be analyzed for theme and content. Higher numbers indicate higher satisfaction with diabetes management.

    Measured: baseline, 12 weeks on study, and postpartum (up to 26 weeks on study)

  3. Percentage of Time Where Blood Glucose is Between 70-140 Milligrams Per Deciliter (mg/dL) - Time in Range

    The primary endpoint is the total time within range (blood glucose level 70-140 mg/dL). All CGM data will be extracted from the Dexcom server for analysis. This measure is used to determine if time in range (TIR) is a suitable clinical endpoint for a larger trial. TIR for both arms will be determined and 95% confidence intervals around the difference in means calculated. TIR will be considered suitable if the upper 95% confidence interval for the difference in means is greater than 5 units in favor of CGM.

    Measured: Baseline, 26 weeks

Secondary outcomes (19)
  1. Number of Participants With Cesarean Delivery

    Measured: approximately 20 weeks on study (at time of delivery)

  2. Change in Hemoglobin A1c (Percentage) From Initiation to Third Trimester

    Measured: baseline (approximately 20 weeks gestation), up to 12 weeks on study (up to 32 weeks gestation)

  3. Percentage of Time Spent in Hyperglycemic Range

    Hyperglycemic range is considered greater than 140 mg/dL. A very high hyperglycemic range is >250mg/dL.

    Measured: up to 26 weeks

  4. Percentage of Time Spent in Hypoglycemic Range

    Hypoglycemic range is considered less than 70 mg/dL. Low is 55-70, very low is <54.

    Measured: 26 weeks

  5. Rates of Gestational Hypertension

    Gestational hypertension is defined as systolic blood pressure 140 mm Hg or diastolic blood pressure 90 mg Hg on two occasions at least 4 hours apart.

    Measured: up to approximately 20 weeks on study

  6. Rates of Preeclampsia

    Gestational hypertension plus either new-onset proteinuria [300 mg/24 hours, protein:creatinine 0.3 mg/dL], thrombocytopenia [platelet count<100,000/uL], elevated Aspartate transaminase or alanine transaminase [>2 upper limit of normal], renal insufficiency [serum creatinine>1.1 mg/dL or an unexplained doubling of creatinine], pulmonary edema, or cerebral or visual symptoms.

    Measured: up to approximately 20 weeks on study

  7. Rates of Polyhydramnios

    Measured: up to approximately 20 weeks on study

  8. Incidence of Neonatal Hypoglycemia

    Measured: up to 26 weeks

  9. Rates of Fetal Macrosomia

    Actual birthweight greater than 95 percent by Fenton growth curve for newborns

    Measured: up to 26 weeks

  10. Rates of NICU Admission

    Measured: up to 26 weeks

  11. Rates of Spontaneous Preterm Delivery

    Preterm delivery is considered less than 37 weeks.

    Measured: up to approximately 17 weeks on study (less than 37 weeks gestation)

  12. Satisfaction and Quality of Life Survey Scores (5-point Likert Scale)

    Satisfaction and Quality of Life survey will be administered and answers will be compared between groups. Survey questions include answers on a 5-point Likert scale. Scores range from 15-75, where higher scores indicate lower satisfaction and quality of life, and lower scores indicate higher satisfaction and quality of life.

    Measured: at enrollment, 28-32 weeks gestation (10 to 14 weeks on study), 2-4 weeks postpartum (up to 26 weeks on study)

  13. Qualitative Outcome: Semi-Structured Interviews to Explore How Glucose Monitoring Affects Participants Thoughts and Feelings

    The interviews will be recorded and transcribed by the Survey Center and analyzed for theme and content by two reviewers for validity.

    Measured: 2-4 weeks postpartum (up to 26 weeks on study)

  14. Qualitative Outcome: Interviews to Understand Participant Sense of Control Around Glucose Monitoring

    Explore if traditional management versus continuous glucose management has higher feelings of control over diabetes management. The interviews will be recorded and transcribed by the Survey Center and analyzed for theme and content by two reviewers for validity.

    Measured: 2-4 weeks postpartum (up to 26 weeks on study)

  15. Satisfaction and Quality of Life Survey - How Satisfied Are You Currently With the Amount of Time it Takes to Manage Your Diabetes?

    A custom survey for Satisfaction and Quality of Life will be administered and answers will be compared between groups. Questions include answers on a 7-point Likert scale, where 1 = very dissatisfied and 7 = very satisfied

    Measured: at enrollment, 28-32 weeks gestation (10 to 14 weeks on study), 2-4 weeks postpartum (up to 26 weeks on study)

  16. Satisfaction and Quality of Life Survey - How Satisfied Are You With the Time it Takes to Determine Your Sugar Level?

    A custom survey for Satisfaction and Quality of Life will be administered and answers will be compared between groups. Questions include answers on a 7-point Likert scale, where 1 = very dissatisfied and 7 = very satisfied

    Measured: at enrollment, 28-32 weeks gestation (10 to 14 weeks on study), 2-4 weeks postpartum (up to 26 weeks on study)

  17. Satisfaction and Quality of Life Survey - How Satisfied Are You With the Total Time it Has Taken to Manage Your Diabetes Over the Last 2 Weeks?

    A custom survey for Satisfaction and Quality of Life will be administered and answers will be compared between groups. Questions include answers on a 7-point Likert scale, where 1 = very dissatisfied and 7 = very satisfied

    Measured: at enrollment, 28-32 weeks gestation (10 to 14 weeks on study), 2-4 weeks postpartum (up to 26 weeks on study)

  18. Satisfaction and Quality of Life Survey - How Satisfied Are You With Your Current Diabetes Treatment?

    A custom survey for Satisfaction and Quality of Life will be administered and answers will be compared between groups. Questions include answers on a 7-point Likert scale, where 1 = very dissatisfied and 7 = very satisfied

    Measured: at enrollment, 28-32 weeks gestation (10 to 14 weeks on study), 2-4 weeks postpartum (up to 26 weeks on study)

  19. Satisfaction and Quality of Life Survey - How Satisfied Are You With Time Spent Getting Checkups for Your Diabetes?

    A custom survey for Satisfaction and Quality of Life will be administered and answers will be compared between groups. Questions include answers on a 7-point Likert scale, where 1 = very dissatisfied and 7 = very satisfied

    Measured: at enrollment, 28-32 weeks gestation (10 to 14 weeks on study), 2-4 weeks postpartum (up to 26 weeks on study)

Timeline

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

  1. First posted11 May 2022
  2. Study start8 Aug 2022
  3. Primary completion6 Oct 2024
  4. Study completion6 Oct 2024

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
Diagnosis
Allocation
Randomised
Intervention model
Parallel groups
Model description
pilot, prospective, randomized trial
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05370612
Sponsor's protocol ID
2025-1028
Other IDs
Protocol Version 3/18/2024, A532860, 2022-0459, 2022-028
Status last verified
Mar 2026
First submitted
6 May 2022
Last updated
31 Mar 2026
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Dexcom G6 CGM and Participant Finger Stick Glucose Monitoring in people with Type2Diabetes and Pregnancy in Diabetic, run by University of Wisconsin, Madison at 1 site in United States.

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 6 inclusion and 7 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 31 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Yes. Results are posted in the registry (first posted 31 Mar 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Feasibility: Number of Participants Who Complete the Study Within 24 Month Time Period (time frame: up to 24 months). The study lists 3 primary outcomes in all. 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 31 Mar 2026.

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