Effect of Telephone-Delivered Interventions on Glycemic Control in Type 2 Diabetes Treated with Glargine Insulin

Descriptive study of a clinical and educational telemedicine intervention in patients with diabetes receiving glargine 300 U/ml (Toujeo) in Spain: results of the T-Coach programme

Background

Diabetes is one of the most prevalent chronic diseases worldwide, and innovative patient support programmes can help and inform patients about their disease and improve their quality of life. The purpose of this study was to evaluate the effect of the T-Coach programme in terms of improvement of disease knowledge, self-management and adherence to treatment in a real-world setting in Spain between July 2016 and October 2018.

Methods

We analyzed data from the T-Coach programme, a telephone platform that gives support to patients with type 2 diabetes mellitus treated with insulin glargine 300 U/ml (Gla-300). Support was provided by diabetes care nurses. Patients followed their treatment and aimed to achieve fasting blood glucose targets through diabetes education.

Results

A total of 479 patients were included in the programme. The mean (SD) dose of Gla-300 was 28.5 (16.3) U at baseline and 31.8 (16.1) U, 31.4 (16.4) U and 32.2 (16.3) U, respectively, at 3, 6 and 12 months. A satisfaction survey was completed by 240 (50.1%) patients, who, on average, were very highly satisfied with the programme, general assistance provided, recommendations received, and calls from nurses.

Conclusions

T-Coach could be an effective tool to help patients achieve their optimal dose of Gla-300 insulin and manage their blood glucose levels. It could also act as an effective support for diabetes education.

A Systematic Review Supporting the Endocrine Society Guidelines: Management of Diabetes and High Risk of Hypoglycemia

CONTEXT

Interventions targeting hypoglycemia in people with diabetes are important for improving quality of life and reducing morbidity and mortality.

OBJECTIVE

To support development of the Endocrine Society Clinical Practice Guideline for management of individuals with diabetes at high risk for hypoglycemia.

METHODS

We searched several databases for studies addressing 10 questions provided by a guideline panel from the Endocrine Society. Meta-analysis was conducted when feasible. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology was used to assess certainty of evidence.

RESULTS

We included 149 studies reporting on 43 344 patients. Continuous glucose monitoring (CGM) reduced episodes of severe hypoglycemia in patients with type 1 diabetes (T1D) and reduced the proportion of patients with hypoglycemia (blood glucose [BG] levels <54 mg/dL). There were no data on use of real-time CGM with algorithm-driven insulin pumps vs multiple daily injections with BG testing in people with T1D. CGM in outpatients with type 2 diabetes taking insulin and/or sulfonylureas reduced time spent with BG levels under 70 mg/dL. Initiation of CGM in hospitalized patients at high risk for hypoglycemia reduced episodes of hypoglycemia with BG levels lower than 54 mg/dL and time spent under 54 mg/dL. The proportion of patients with hypoglycemia with BG levels lower than 70 mg/dL and lower than 54 mg/dL detected by CGM was significantly higher than point-of-care BG testing. We found no data evaluating continuation of personal CGM in the hospital. Use of an inpatient computerized glycemic management program utilizing electronic health record data was associated with fewer patients with and episodes of hypoglycemia with BG levels lower than 70 mg/dL and fewer patients with severe hypoglycemia compared with standard care. Long-acting basal insulin analogs were associated with less hypoglycemia. Rapid-acting insulin analogs were associated with reduced severe hypoglycemia, though there were more patients with mild to moderate hypoglycemia. Structured diabetes education programs reduced episodes of severe hypoglycemia and time below 54 mg/dL in outpatients taking insulin. Glucagon formulations not requiring reconstitution were associated with longer times to recovery from hypoglycemia, although the proportion of patients who recovered completely from hypoglycemia was not different between the 2 groups.

CONCLUSION

This systematic review summarized the best available evidence about several interventions addressing hypoglycemia in people with diabetes. This evidence base will facilitate development of clinical practice guidelines by the Endocrine Society.

Systematic review and meta-analysis of diabetes specialist delivered insulin education for adults with type 2 diabetes in outpatient settings

OBJECTIVE

We conducted a systematic review and meta-analysis of insulin education for people with type 2 diabetes to assess its effectiveness in improving glycaemic levels.

METHODS

We searched the following online databases from the earliest record to 17 February 2020: MEDLINE, EMBASE, PsycINFO, CINAHL, Web of science, Cochrane Library and https://clinicaltrials.gov. Data was extracted on publication status, participants' characteristics at baseline, intervention and control group, study design, and data for primary and secondary outcomes, change in HbA1c(%), change in weight (Kilogram). The review was registered with international prospective register of systematic reviews registration (PROSPERO):CRD42020167769.

RESULTS

Eighteen papers were included in the systematic review. In the meta-analysis there was a small statistically significant improvement in HbA1c (0.39% points/4.4 mmol/mol reduction) in the insulin education group compared to control conditions (N = 10 studies, n = 3307 participants, SMD = -0.22, 95% CI = -0.34, -0.10, I² = 66% p = 0.002). There was a small non-significant increase in weight (0.54 Kg) in the insulin education group compared to control conditions (N = 6 studies, n = 470 participants, SMD = 0.03, 95% CI = -0.10, 0.17, I² = 0.0%, p = 0.82). Quality of evidence was rated low to very low.

CONCLUSIONS

Enhanced insulin education delivered by diabetes specialists is potentially more effective than standard care. Further research is required to reach robust conclusions.

Strategies for overcoming therapeutic inertia in type 2 diabetes: A systematic review and meta-analysis

AIMS

To systematically investigate the effect of interventions to overcome therapeutic inertia on glycaemic control in individuals with type 2 diabetes.

MATERIALS AND METHODS

We electronically searched for randomized controlled trials or quasi-experimental studies published between January 1, 2004 and December 31, 2019 evaluating the effect of interventions on glycated haemoglobin (HbA1c) control. Characteristics of included studies and HbA1c difference between intervention and control arms (main outcome) were extracted. Interventions were grouped as: care management and patient education; nurse or certified diabetes educator (CDE); pharmacist; or physician-based.

RESULTS

Thirty-six studies including 22 243 individuals were combined in nonlinear random-effects meta-regressions; the median (range) duration of intervention was 1 year (0.9 to 36 months). Compared to the control arm, HbA1c reduction ranged from: -17.7 mmol/mol (-1.62%) to -4.4 mmol/mol (-0.40%) for nurse- or CDE-based interventions; -13.1 mmol/mol (-1.20%) to 3.3 mmol/mol (0.30%) for care management and patient education interventions; -9.8 mmol/mol (-0.90%) to -6.6 mmol/mol (-0.60%) for pharmacist-based interventions; and -4.4 mmol/mol (-0.40%) to 2.8 mmol/mol (0.26%) for physician-based interventions. Across the included studies, a reduction in HbA1c was observed only during the first year (6 months: -4.2 mmol/mol, 95% confidence interval [CI] -6.2, -2.2 [-0.38%, 95% CI -0.56, -0.20]; 1 year: -1.6 mmol/mol, 95% CI -3.3, 0.1 [-0.15%, 95% CI -0.30, 0.01]) and in individuals with preintervention HbA1c >75 mmol/mol (9%).

CONCLUSIONS

The most effective approaches to mitigating therapeutic inertia and improving HbA1c were those that empower nonphysician providers such as pharmacists, nurses and diabetes educators to initiate and intensify treatment independently, supported by appropriate guidelines.

Efficacy and Safety of a Decision Support Intervention for Basal Insulin Self-Titration Assisted by the Nurse in Outpatients with T2DM: A Randomized Controlled Trial

OBJECTIVE

The main aim of this study was to evaluate a combined fasting blood glucose based dosage self-titration setting and decision supported telephone coaching intervention on glycemic control and diabetes self-management skills, compared to the conventional care.

METHODS

A 12-week, single-blinded, randomized controlled trial was conducted on adults with type 2 diabetes (T2DM) primarily treated with basal insulin. After randomization, the intervention group (IG, n = 426) received a basal insulin self-titration decision support intervention administered by the Diabetes Specialty Nurses while the control group (CG, n = 423) received conventional care for 12 weeks, both included five telephone interviews. The primary efficacy endpoint was the effect of intervention on glycemic control, measured as the change in glycated hemoglobin (HbA1c) from baseline to Week 12 (after intervention) compared to the control group. Other endpoints included comparisons of the effects of intervention on fasting plasma glucose (FPG), postprandial plasma glucose (PPG), body weight, Michigan diabetes knowledge test (MDKT), diabetes empowerment scale-short Form (DES-DSF), and summary of diabetes self-care activities (SDSCA). Changes in the primary and secondary outcomes were compared using the t-test for continuous variables with a normal distribution and χ ²-test for categorical variables.

RESULTS

The IG showed more improvements on mean HbA1c, compared to the CG (-2.8% vs -1.8%), so did the FPG, PPG, MDKT, DES-DSF and SDSCA (all P<0.01) after the 12-week follow up. Though the final mean insulin dose in the IG was higher than the CG at the end of the study (0.32 U/kg vs 0.28 U/kg), the changes of body weight were similar between the two groups (0.46kg vs 0.40kg, P=0.246), and the proportion of patients with hypoglycemia events during the whole trial were similar (20.65% vs 17.73%, P=0.279).

CONCLUSION

Decision supporting of basal insulin glargine self-titration assisted by Diabetes Specialty Nurses is effective and safe in patients with T2DM. Decision supported telephone coaching intervention offers ongoing encouragement, guidance, and determination of relevant sources of decisional conflict, facilitating adjusting the insulin dose.

Efficacy and Safety of Switching Patients Inadequately Controlled on Basal Insulin to Insulin Glargine 300 U/mL: The TRANSITION 2 Study

INTRODUCTION

This study aimed to determine, in close to real-life conditions, the efficacy and safety of switching from any basal insulin to insulin glargine 300 U/mL (Gla-300) in patients with uncontrolled type 2 diabetes (T2D).

METHODS

This was an interventional, multicenter, single-arm, prospective study with a 24-week treatment phase. Adult patients with T2D treated with basal insulin with or without other antidiabetics, HbA1c > 7.5%, and fasting self-monitored blood glucose (F-SMBG) > 130 mg/dL (mean of three measures) at baseline were included. Insulin dose was titrated to reach F-SMBG 90-130 mg/dL. Efficacy and safety were assessed at 12 weeks (W12) and 24 weeks (W24). The main outcome parameter was HbA1c change between baseline and W24. Safety parameters included self-reported hypoglycemia (any type). Patients' satisfaction with the treatment was assessed by the Diabetes Treatment Satisfaction Questionnaire (DTSQ).

RESULTS

A total of 140 patients were included and 137 were treated. Mean HbA1c decreased from 8.64% at baseline to 8.14% at W12 (mean difference [95% CI] - 0.51% [- 0.64; - 0.38]) and 8.01% at W24 (- 0.64% [- 0.81; - 0.46]). Target F-SMBG was reached in 35.0% of the patients at W12 and 38.4% at W24. The percentages of patients reaching HbA1c levels < 7.0%, < 7.5%, and < 8.0% at W24 were 11.4%, 29.5%, and 50.8%, respectively, while only 31.6% had an HbA1c value < 8.0% at baseline. HbA1c reduction was greater in patients with higher baseline levels. During the treatment phase, 46.0% of the participants had at least one hypoglycemia event; 31.4% documented symptomatic hypoglycemia, 2.2% severe hypoglycemia, and 12.2% nocturnal hypoglycemia. Treatment satisfaction increased by 20% between baseline and W24.

CONCLUSION

These data, derived from close to real-life practice in France, confirm the reassuring results of randomized trials on the efficacy and safety of Gla-300.

TRIAL REGISTRATION

EudraCT number 2015-002416-33.