The Role of Retrospective Data Review in the Personal Use of Real-Time Continuous Glucose Monitoring: Perceived Impact on Quality of Life and Health Outcomes

"Now I can see it works!" Perspectives on Using a Nutrition-Focused Approach When Initiating Continuous Glucose Monitoring in People with Type 2 Diabetes: Qualitative Interview Study

BACKGROUND

Food choices play a significant role in achieving glycemic goals and optimizing overall health for people with type 2 diabetes (T2D). Continuous glucose monitoring (CGM) can provide a comprehensive look at the impact of foods and other behaviors on glucose in real time and over the course of time. The impact of using a nutrition-focused approach (NFA) when initiating CGM in people with T2D is unknown.

OBJECTIVE

This study aims to understand the perspectives and behaviors of people with T2D who participated in an NFA during CGM initiation.

METHODS

Semistructured qualitative interviews were conducted with UNITE (Using Nutrition to Improve Time in Range) study participants. UNITE was a 2-session intervention designed to introduce and initiate CGM using an NFA in people with T2D who do not use insulin. The intervention included CGM initiation materials that emphasized the continuous glucose monitor as a tool to guide evidence-based food choices. The materials were designed to support conversation between the CGM user and diabetes care provider conducting the sessions. A rapid matrix analysis approach was designed to answer two main questions: (1) How do people who participate in an NFA during CGM initiation describe this experience? and (2) How do people who participate in an NFA during CGM initiation use CGM data to make food-related decisions, and what food-related changes do they make?

RESULTS

Overall, 15 people completed interviews after completion of the UNITE study intervention: 87% (n=13) identified as White, 60% (n=9) identified as male, mean age of 64 (SD 7.4) years, mean T2D duration of 7.5 (SD 3.8) years, and mean hemoglobin A1c level of 7.5% (SD 0.4%). Participants fluently discussed glycemic metrics such as time in range (percent time with glucose 70-180 mg/dL) and reported regularly using real-time and retrospective CGM data. Participants liked the simplicity of the intervention materials (eg, images and messaging), which demonstrated how to use CGM data to learn the glycemic impact of food choices and suggested how to adjust food choices for improved glycemia. Participants reported that CGM data impacted how they thought about food, and most participants made changes because of seeing these data. Many of the reported changes aligned with evidence-based guidance for a healthy lifestyle, including prioritizing nonstarchy vegetables, reducing foods with added sugar, or walking more; however, some people reported behavior changes, such as skipping or delaying meals to stay in the target glucose range. A few participants reported that the CGM amplified negative feelings about food or eating.

CONCLUSIONS

Participants agreed that pairing nutrition information with CGM initiation instructions was helpful for their diabetes care. In general, the NFA during CGM initiation was well received and led to positive changes in food choices and behaviors during a 2-month intervention.

Examining Share plus-A Continuous Glucose Monitoring Plus Data-Sharing Intervention in Older Adults and Their Care Partners: Protocol for a Randomized Control Study

BACKGROUND

Older adults with type 1 diabetes (T1D) are increasingly turning to care partners (CPs) as resources to support their diabetes management. With the rise in diabetes technologies, such as continuous glucose monitoring (CGM), there is great potential for CGM data sharing to increase CP involvement in a way that improves persons with diabetes' glucose management and reduces distress.

OBJECTIVE

The specific aims of this paper are to (1) evaluate the feasibility, usability, and acceptability of the Share plus intervention compared to the CGM Follow app plus diabetes self-management education and support; (2) evaluate the effect of the Share plus intervention on time-in-range (TIR; primary outcome) and diabetes distress (secondary outcome); and (3) explore differences between groups in person with diabetes and CP dyadic appraisal and coping, quality of life, diabetes self-care, and CP burden at 12 and 24 weeks and associations of dyadic variables on outcomes.

METHODS

This is a protocol for a feasibility, pilot randomized controlled trial. Older adults with T1D and their CP (N=80 dyads) will be randomized 1:1 to the Share plus intervention or Follow app plus diabetes self-management education. The trial will include a 12-week active intervention to determine the change in primary (TIR) and secondary (diabetes distress) outcomes, followed by a 12-week, observation-only phase to examine maintenance effects. The evaluation is guided by the Dyadic Coping Model. Patient-level effectiveness outcomes (TIR, hemoglobin A1c [HbA1c], diabetes distress, diabetes appraisal, coping, quality of life, diabetes self-care behaviors, and CP burden) will be assessed, using patient-reported outcomes measures and a home HbA1c test kit. Patient- and CP-level acceptability and feasibility will be assessed using surveys and interviews. Quantitative feasibility, acceptability, and usability data will be described using frequencies and percentages. Acceptability will be summarized based on Likert questions and open-ended questions. Usability will be examined separately for the intervention and control groups based on the System Usability Scale, with a study benchmark of ≥68 indicating good usability. TIR will be computed based on 2 weeks' worth of data at baseline (prior to intervention) and 2 weeks each after the intervention (week 12) and at follow-up (week 24).

RESULTS

Recruitment started in August 2023 and enrollment began in November 2023. To date, 24 participants have been enrolled in this study. We expect to conclude this study in March 2026 and expect to disseminate results in March 2026.

CONCLUSIONS

To our knowledge, this will be the first pilot randomized controlled trial to evaluate both feasibility and effectiveness outcomes for the web-based, platform-delivered Share plus intervention for older adults with T1D and their CP. This research has implications for CGM data sharing in other age groups with T1D and type 2 diabetes.

TRIAL REGISTRATION

ClinicalTrials.gov NCT05937321; https://clinicaltrials.gov/study/NCT05937321.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

DERR1-10.2196/60004.

Addressing Inequity in Continuous Glucose Monitoring Access: Leveraging the Hospital in the Continuum of Care

BACKGROUND

While continuous glucose monitoring (CGM) has transformed the care of people with diabetes (PWD) in the ambulatory setting, there continue to be significant barriers to access. With CGM on the horizon in the acute care setting, it is important to consider the potential for this shift to improve ambulatory CGM access to those at the highest risk of morbidity and mortality.

METHODS

In this commentary, we review the existing literature on the specific barriers to CGM access for individuals with diabetes in the United States including racial disparities, provider bias, cost and shortage of specialty diabetes care. Key areas explored include the importance of CGM in diabetes management, the consequences of disparities in access to CGM, and leveraging the inpatient setting to promote equitable care and better outcomes for PWD.

RESULTS

We present a vision for a new care model, which leverages the transition of care from the hospital to successfully incorporate CGM into the discharge plan.

CONCLUSIONS

Given that CGM utilization is associated with improved outcomes and reduced rates of hospitalization and emergency department visits, a care model that facilitates CGM access upon transition from inpatient to ambulatory care can enhance health equity and quality of life for people with diabetes.

Continuous glucose monitoring for the routine care of type 2 diabetes mellitus

Although continuous glucose monitoring (CGM) devices are now considered the standard of care for people with type 1 diabetes mellitus, the uptake among people with type 2 diabetes mellitus (T2DM) has been slower and is focused on those receiving intensive insulin therapy. However, increasing evidence now supports the inclusion of CGM in the routine care of people with T2DM who are on basal insulin-only regimens or are managed with other medications. Expanding CGM to these groups could minimize hypoglycaemia while allowing efficient adaptation and escalation of therapies. Increasing evidence from randomized controlled trials and observational studies indicates that CGM is of clinical value in people with T2DM on non-intensive treatment regimens. If further studies confirm this finding, CGM could soon become a part of routine care for T2DM. In this Perspective we explore the potential benefits of widening the application of CGM in T2DM, along with the challenges that must be overcome for the evidence-based benefits of this technology to be delivered for all people with T2DM.

Reduction in Diabetes-Related Hospitalizations and Medical Costs After Dexcom G6 Continuous Glucose Monitor Initiation in People with Type 2 Diabetes Using Intensive Insulin Therapy

INTRODUCTION

Some people with type 2 diabetes (T2D) require intensive insulin therapy to manage their diabetes. This can increase the risk of diabetes-related hospitalizations. We hypothesize that initiation of real-time continuous glucose monitoring (RT-CGM), which continuously measures a user's glucose values and provides threshold- and trend-based alerts, will reduce diabetes-related emergency department (ED) and inpatient hospitalizations and concomitant costs.

METHODS

A retrospective analysis of US healthcare claims data using Optum's de-identified Clinformatics® Data Mart database was performed. The cohort consisted of commercially insured, CGM-naïve individuals with T2D who initiated Dexcom G6 RT-CGM system between August 1, 2018, and March 31, 2021. Twelve months of continuous health plan enrollment before and after RT-CGM initiation was required to capture baseline and follow-up rates of diabetes-related hospitalizations and associated healthcare resource utilization (HCRU) costs. Analyses were performed for claims with a diabetes-related diagnosis code in either (1) any position or (2) first or second position on the claim.

RESULTS

A total of 790 individuals met the inclusion criteria. The average age was 52.8 (10.5) [mean (SD)], 53.3% were male, and 76.3% were white. For claims with a diabetes-related diagnosis code in any position, the number of individuals with ≥ 1 ED visit decreased by 30.0% (p = 0.01) and with ≥ 1 inpatient visit decreased by 41.5% (p < 0.0001). The number of diabetes-related visits and average number of visits per person similarly decreased by at least 31.4%. Larger relative decreases were observed for claims with a diabetes-related diagnosis code in the first or second position on the claim. Total diabetes-related costs expressed as per-person-per-month (PPPM) decreased by $341 PPPM for any position and $330 PPPM for first or second position.

CONCLUSION

Initiation of Dexcom G6 among people with T2D using intensive insulin therapy was associated with a significant reduction in diabetes-related ED and inpatient visits and related HCRU costs. Expanded use of RT-CGM could augment these benefits and result in further cost reductions.

Continuous glucose monitoring with data sharing in older adults: A qualitative study

AIMS

This study examined the perceptions of the SHARE plus intervention and its effects on communication, collaboration, and involvement in day-to-day diabetes management in older adults with Type 1 diabetes (T1D) and their care partners.

BACKGROUND

The SHARE plus intervention includes continuous glucose monitoring with a data sharing app that allows care partners to view glucose data on a smartphone and receive alerts. People with T1D and their care partners are educated about communication strategies, problem-solving strategies, and action planning when using glucose data sharing.

DESIGN

Qualitative descriptive design.

METHODS

Older adults with T1D wore a continuous glucose monitor for 3 months (n = 10). Care partners (n = 10) used a data-sharing app. The SHARE plus intervention consisted of one 90-min education session. Semi-structured interviews were conducted across 10 dyads (person with diabetes and care partner) following the 12-week study. A qualitative description and a constant comparison approach were used to examine similarities and differences in experiences. Interviews were transcribed, coded, and analysed for common themes. The manuscript adheres to COREQ EQUATOR checklist.

RESULTS

The SHARE plus intervention increased diabetes knowledge across the dyads, improving confidence and helping partners understand how to navigate symptoms and behaviours and when to intervene. Dyads worked together to optimise diabetes management through improved communication, collaboration, and management of disagreements. Although the majority of persons with diabetes and their care partners reported no conflictual communication, disagreements about diabetes management remained in some dyads. The SHARE plus intervention impacted care partners in various ways from a psychological perspective. While live-in-care partners felt peace of mind, care partners living away from persons with diabetes had some increased worry and concern.

CONCLUSION

The SHARE plus intervention results can help guide future development of diabetes dyadic care and education interventions using diabetes technology.

RELEVANCE TO CLINICAL PRACTICE

The SHARE plus intervention is a brief, practical intervention that can help diabetes clinicians improve communication and collaboration among spouses living with older adults with T1D who use continuous glucose monitoring with data sharing.

PATIENT CONTRIBUTION

A person with diabetes was part of the research team and assisted with design of the intervention and subsequent interviews and analysis.