The Safety and Efficacy of Second-Generation Basal Insulin Analogues in Adults with Type 2 Diabetes at Risk of Hypoglycemia and Use in Other Special Populations: A Narrative Review

Hypoglycemia is a major barrier impeding glycemic control in persons with type 2 diabetes mellitus and creates a substantial burden on the healthcare system. Certain populations that require special attention, such as older adults and individuals with renal impairment, a longer duration of diabetes or those who have experienced prior hypoglycemia, may be at a higher risk of hypoglycemia, particularly with insulin treatment. Second-generation basal insulin analogues (insulin glargine 300 U/mL and degludec) have demonstrated reductions in hypoglycemia compared with insulin glargine 100 U/mL although evidence of this benefit across specific populations is less clear. In this review we summarize the literature with respect to the efficacy and safety data for second-generation basal insulin analogues in adults with type 2 diabetes mellitus who are at risk of hypoglycemia or who require special attention. Randomized controlled trials, meta-analyses and real-world evidence demonstrate that the use of second-generation basal insulin analogues is associated with less hypoglycemia compared with insulin glargine 100 U/mL without compromising glycated hemoglobin control. A reduced risk of hypoglycemia with second-generation basal insulin analogues was evident in older adults and in individuals with obesity, renal impairment, a history of cardiovascular disease or a long duration of insulin use. Further studies are needed in other populations, including those with more severe renal impairment or hepatic dysfunction, the hospitalized population and those with cognitive impairment. Overall, less hypoglycemia associated with second-generation basal insulin analogues may help reduce barriers for insulin use, improve adherence and offset the costs of hypoglycemia-related healthcare resource utilization.

Understanding the Clinical Profile of Insulin Degludec, the Latest Basal Insulin Approved for Use in Canada: a Narrative Review

In recent years, the development of basal insulin therapies has focused on insulin analogues that have longer durations of action and more predictable pharmacokinetic/pharmacodynamic (PK/PD) profiles than their human insulin-based predecessors, such as neutral protamine Hagedorn (NPH) insulin. Dosed once-daily, such analogues can provide a more stable glucose-lowering action, which translates clinically into a reduced risk of hypoglycemia. Insulin degludec (degludec) became available in Canada in 2017 and is the first basal insulin analogue to have a half-life exceeding the dosing interval. As well as offering the promise of an exceptionally flat PK/PD profile when at steady state, this characteristic means that insulin degludec can be dosed with some flexibility with regard to time of day and that it need not be taken at the same time each day. However, the approximately 25-h half-life also has some implications concerning dose titration. This article provides an up-to-date review of the study data describing the clinical profile of degludec, and aims to give helpful and practical advice to prescribers about its use. While the clinical benefits of degludec are described, it is also acknowledged that further study is required to better understand how its clinical performance compares with that of insulin glargine 300 units/mL.

Clinical Outcomes of Switching to Insulin Glargine 300 U/ml from Other Basal Insulins in People with Type 2 Diabetes in Italy: A Real-World Study

INTRODUCTION

Primary aim was to provide real-world evidence of the outcomes after the switch to glargine 300 U/ml (Gla-300) from other basal insulins (first or second generation) in Italy.

METHODS

Multicenter, observational, retrospective study based on electronic medical records.

RESULTS

Overall, 953 T2DM insulin ± OAD treated people switched to Gla-300 or Gla-100 from January 2015 to July 2018. Three clinically relevant cohorts were identified: patients switching to Gla-300 from first-generation basal insulin (cohort 1), patients switching to Gla-300 from degludec-100 (Deg-100) (cohort 2), and those switching to Gla-100 from any basal insulin (cohort 3). The three cohorts differed in terms of age, diabetes duration, and metabolic control. HbA1c changes after 6 months from the switch were - 0.27% (95% CI - 0.38; - 0.16), - 0.06% (95% CI - 0.31; 0.19), and - 0.30% (95% CI - 0.51; - 0.09) in the three cohorts, respectively. FPG significantly decreased in cohort 1 (- 14.07 mg/dl, 95% CI - 20.25; - 7.89), while body weight significantly decreased in cohort 2 (- 1.47 kg, 95% CI - 2.55; - 0.39). Doses of insulin marginally changed during the follow-up (+ 0.89 U in basal insulin daily dose in cohort 1 and + 2.07 U in short-acting insulin daily dose in cohort 2).

CONCLUSIONS

Switching to Gla-300 from first-generation basal insulin in the real world is associated with improvements in metabolic control despite a suboptimal titration of both basal and short-acting insulins. Inertia in insulin titration documented in the Gla-100 cohort is also observed with the second-generation basal insulin. The switch to Gla-300 from Deg-100 was associated with a decrease in body weight of - 1.47 kg despite a slight increase in short-acting insulin daily doses of about + 2 U.

Basal-Bolus Insulin Regimen for Hospitalised Patients with COVID-19 and Diabetes Mellitus: A Practical Approach

BACKGROUND AND AIM

The coronavirus disease 2019 (COVID-19) outbreak has rapidly crossed international boundaries and placed increasing demands on healthcare facilities worldwide. Patients with diabetes and uncontrolled blood glucose levels are at increased risk for poor clinical outcomes and in-hospital mortality related to COVID-19. Therefore, achieving good glycaemic control is of paramount importance among hospitalised patients with COVID-19. Basal-bolus insulin therapy is a safe and effective intervention for the management of hyperglycaemia in hospitalised patients. The aim of this article is to provide a practical guidance for the use of the basal-bolus insulin regimen in hospitalised patients with COVID-19 and diabetes mellitus.

METHODS

This guidance document was formulated based on the review of available literature and the combined personal experiences of the authors. We provide a comprehensive review on the use of the basal-bolus insulin regimen, including its principles, rationale, indications, prerequisites, initiation, and dose titration, and also suggest targets for blood glucose control and different levels of capillary blood glucose monitoring. Various case scenarios are used to illustrate how optimal glucose control can be achieved, such as through adjustments in doses of prandial and basal insulin, the use of correctional insulin dosing and changes in the timing and content of major and minor meals.

CONCLUSION

The practical guidance for the use of the basal-bolus insulin regimen in hospitalised patients with COVID-19 and diabetes mellitus presented here can be used for patients admitted to hospital for indications other than COVID-19 and for those in ambulatory care.

Switching to Degludec is Associated with Reduced Hypoglycaemia, Irrespective of Definition Used or Patient Characteristics: Secondary Analysis of the ReFLeCT Prospective, Observational Study

INTRODUCTION

Hypoglycaemia is a common side effect of insulin therapy; low or high glycated haemoglobin (HbA_1c) levels, history of hypoglycaemia or long diabetes duration are known modifiers of hypoglycaemia risk. In randomised clinical trials, lower rates of hypoglycaemia have been observed with the new-generation insulin analogue, long-acting insulin degludec, compared with other basal insulins.

METHODS

The ReFLeCT study was a prospective observational study over 12 months. Patient-reported diary data on hypoglycaemia were collected from patients with type 1 diabetes (T1D) or type 2 diabetes (T2D) who were switching from other basal insulins to insulin degludec (degludec) at their physician's discretion in routine clinical care. Two secondary analyses were undertaken to investigate the change in number of hypoglycaemic events: a post hoc analysis using the updated American Diabetes Association (ADA) level 1, 2 and 3 hypoglycaemia definitions, and a pre-specified analysis using patient characteristics (baseline HbA_1c, diabetes duration, and physician's rationale for initiating degludec).

RESULTS

Switching to degludec was associated with significantly fewer hypoglycaemic events for all definitions in T1D, and level 1 and 2 in T2D (too few level 3 events for statistical comparison). Moreover, patient characteristics did not influence the observed reduction in hypoglycaemia in T1D and T2D.

CONCLUSION

These results demonstrate that switching to degludec from other basal insulins was associated with reduced rates of hypoglycaemia, irrespective of the definition used or baseline patient characteristics.

TRIAL REGISTRATION

NCT02392117.

Real-world data on the use of insulin glargine 300 U/mL in Japanese patients with type 1 diabetes: twelve-month results from a post-marketing surveillance study (X-STAR study)

BACKGROUND

With limited real-world insulin glargine 300 U/mL (Gla-300) data among Japanese patients with type 1 diabetes mellitus (T1DM) available, the authors describe its effectiveness and safety in Japanese T1DM patients switching to Gla-300.

RESEARCH DESIGN AND METHODS

X-STAR was a 12-month prospective, observational, post-marketing study in Japanese patients with diabetes mellitus from 2015 to 2018: insulin-experienced T1DM patients initiating Gla-300 were analyzed.

RESULTS

Of 774 patients, mean (±standard deviation) HbA1c (%) and fasting plasma glucose (mg/dL) decreased from 8.27 ± 1.55 to 8.15 ± 1.35 (by -0.12 ± 1.30 [p = 0.013]) and 167.9 ± 92.6 to 153.9 ± 70.9 (by -13.9 ± 103.8 [p = 0.067]) from baseline to month 12, respectively. A total of 16.3% achieved HbA1c <7.0% at month 12. Gla-300 dose increased by 1.13 ± 3.18 U/day (0.02 ± 0.05 U/kg/day) (p < 0.001), with a + 0.22 ± 2.70 (p = 0.037) body-weight change (kg) from baseline 60.83 ± 12.81 to 12-month 61.06 ± 12.89. Adverse drug reactions (ADRs) and serious ADRs occurred in 9.82% and 0.78% of the patients, respectively. Hypoglycemia was the most common ADR (9.30%). In total, 88.9% adhered to Gla-300 administration schedules, whereas <40% adhered to exercise and dietary instructions, respectively.

CONCLUSIONS

Gla-300 showed no unprecedented safety concerns for insulin-experienced T1DM patients in Japanese clinical settings. Our results provide insights into strategies for blunted Gla-300 up-titration dose, despite insufficient HbA1c control and lifestyle modification.

Basal Insulin Dose Titration for Glycemic Control in Patients With Type 2 Diabetes Mellitus in Thailand: Results of the REWARDS Real-World Study

This multicenter, longitudinal, descriptive, observational study of T2DM adults in Thailand aimed to assess real-world outcomes of basal insulin (BI) dose titration on glycemic control. Three-hundred and twenty-four patients were recruited and followed up over 24 weeks. Basal insulin titration was physician-driven in 58.2% of patients and patient-driven in the rest. During the 24-week study period, the total daily BI dose moved from 20.9 to 25.6 in the physician-driven group, while in the patient-driven group, it increased from 25.3 to 29.7. Thirty-five patients (11.2%) achieved their individualized HbA1c targets, with 18 patients (5.8%) achieving HbA1c ⩽ 7% without documented hypoglycemia. In summary, this study highlights that BI titration is suboptimal in the real world, and patients are unable to achieve their glycemic targets.

Key Strategies for Overcoming Psychological Insulin Resistance in Adults with Type 2 Diabetes: The UK Subgroup in the EMOTION Study

INTRODUCTION

Many patients with type 2 diabetes mellitus (T2DM) delay initiation of insulin therapy despite healthcare professional (HCP) advice. This phenomenon has been referred to as 'psychological insulin resistance' (PIR), and various contributing factors have been identified. Studies discussing approaches to overcoming PIR are lacking. Our aim was to identify the key strategies used by HCPs that most helped adults with T2DM and PIR in the UK to initiate insulin.

METHODS

As part of a global study, UK adults with T2DM and PIR were recruited (N = 125) to take a survey that included 38 HCP statements and actions about insulin initiation. Data assessed were perceived occurrence and helpfulness of these strategies in facilitating insulin initiation.

RESULTS

The most helpful strategies involved demonstrating the injection process (e.g. HCP talked patient through the process of taking insulin [83.6%]) and adopting a collaborative approach (HCP encouraged patient to contact the clinic immediately in case of any problems/questions [80.5%]). Additionally, HCPs highlighting the benefits of insulin (HCP explained that insulin was a natural substance needed by patient's body [81.2%]) and allaying patients' concerns (HCP explained that patient might not have to take insulin forever [78.0%]) helped patients initiate insulin. The least helpful action was HCPs repeatedly persuading patients to initiate insulin (40.9%).

CONCLUSIONS

The study recommends key strategies that HCPs can adopt to help adults with T2DM overcome PIR in the UK.

In Silico Head-to-Head Comparison of Insulin Glargine 300 U/mL and Insulin Degludec 100 U/mL in Type 1 Diabetes

Background: Second-generation long-acting insulin glargine 300 U/mL (Gla-300) and degludec 100 U/mL (Deg-100) provide novel basal insulin therapies for the treatment of type 1 diabetes (T1D). Both offer a flatter pharmacokinetic (PK) profile than the previous generation of long-acting insulins, thus improving glycemic control while reducing hypoglycemic events. This work describes an in silico head-to-head comparison of the two basal insulins on 24-h glucose profiles and was used to guide the design of a clinical trial. Materials and Methods: The Universities of Virginia (UVA)/Padova T1D simulator describes the intra-/interday variability of glucose-insulin dynamics and thus provides a robust bench-test for assessing glucose control for basal insulin therapies. A PK model describing subcutaneous absorption of Deg-100, in addition to the one already available for Gla-300, has been developed based on T1D clinical data and incorporated into the simulator. One hundred in silico T1D subjects received a basal insulin dose (Gla-300 or Deg-100) for 12 weeks (8 weeks uptitration, 4 weeks stable dosing) by morning or evening administration in a basal/bolus regimen. The virtual patients were uptitrated to their individual doses with two different titration rules. Results: The last 2-week simulated continuous glucose monitoring data were used to calculate various outcome metrics for both basal insulin treatments, with primary outcome being the percent time in glucose target (70-140 mg/dL). The simulations show no statistically significant difference for Gla-300 versus Deg-100 in the main endpoints. Conclusions: This work suggests comparable glucose control using either Gla-300 or Deg-100 and was used to guide the design of a clinical trial intended to compare second-generation long-acting insulin analogues.

Persistence with Basal Insulin and Frequency of Hypoglycemia Requiring Hospitalization in Patients with Type 2 Diabetes

INTRODUCTION

A second-generation basal insulin analogue insulin glargine 300 U/mL (Gla-300) has been marketed in France since June 2016. This real-world study was designed to assess persistence with Gla-300 and the prevalence of related hypoglycemia requiring hospitalization as compared to first-generation basal insulins, in patients with type 2 diabetes mellitus (T2DM).

METHODS

A retrospective study was conducted using data in the large French comprehensive national healthcare system claims databases. Patients with T2DM newly treated with insulin in 2016 and 2017 (2-year period) were included. Three basal insulins [Gla-300, glargine 100 U/mL (Gla-100; both branded and biosimilar) and insulin detemir (IDet)] were compared for (1) persistence until treatment discontinuation using adjusted Cox models and (2) hypoglycemia requiring hospitalization over the period of insulin exposure.

RESULTS

During the 2-year study period, in France, 181,263 patients initiated basal insulin therapy (in a basal scheme or a more complex insulin scheme), of whom 74% initiated Gla-100, 14.2% initiated IDet and 11.8% initiated Gla-300. Patient characteristics varied according to the insulin regimen in terms of age, gender, social coverage, insulin scheme, and Charlson Comorbidity Index. Overall, 72% of patients were still treated with any basal insulin after 1 year (75% in basal scheme). In all insulin treatment regimens, patients were less likely to discontinue Gla-300 as compared to Gla-100 [adjusted odds ratio (OR) 0.39, 95% confidence interval (CI) 0.37-0.41], with similar results when only the basal scheme was considered (adjusted OR 0.38, 95% CI 0.35-0.40). Persistence with IDet was similar to that with Gla-100. Patients treated with Gla-100 had higher crude hospitalization rates for hypoglycemia than those receiving Gla-300 (1.4 for 100 patients-years; OR 0.67, 95% CI 0.55-0.81); however, this difference was not statistically significant after adjustment for patient characteristics. Emergency Room (ER) visits were less frequent in patients treated with Gla-300 versus Gla-100 with or without adjustment for patient characteristics (p < 0.0001).

CONCLUSION

Real-world persistence for basal insulin therapy in patients with T2DM was significantly better in those on Gla-300 compared with those on Gla-100 and IDet. A trend to a lower frequency of hospitalization for hypoglycemia and ER visits, whatever the cause, was also observed in patients on Gla-300.

Rationale for Timely Insulin Therapy in Type 2 Diabetes Within the Framework of Individualised Treatment: 2020 Update

Type 2 diabetes is characterised by chronic hyperglycaemia and variable degrees of insulin deficiency and resistance. Hyperglycaemia and elevated fatty acids exert harmful effects on β-cell function, regeneration and apoptosis (gluco-lipotoxicity). Furthermore, chronic hyperglycaemia triggers a vicious cycle of insulin resistance, low-grade inflammation and a cascade of pro-atherogenic processes. Thus, timely near to normal glucose control is of utmost importance in the management of type 2 diabetes and prevention of micro- and macroangiopathy. The majority of patients are multimorbid and obese, with critical comorbidities such as cardiovascular disease, heart failure and chronic kidney disease. Recently published guidelines therefore recommend patient-centred risk/benefit-balanced use of oral glucose-lowering drugs or a glucagon-like peptide 1 (GLP-1) receptor agonist, or switching to insulin with glycated haemoglobin (HbA1c) out of target. This article covers the indications of early insulin treatment to prevent diabetes-related complications, particularly in subgroups with severe insulin deficit, and to achieve recovery of residual β-cell function. Furthermore, the individualised, risk/benefit-balanced, timely initiation of insulin as second and third option is analysed. Timely insulin initiation may prevent diabetes progression, reduce diabetes-related complications and has less serious adverse effects. Basal insulin is the preferred option in most clinical situations with consequences of undertreatment of chronic hyperglycaemia.

Long-term glycemic control and prevention of diabetes complications in vivo using oleic acid-grafted-chitosan‑zinc-insulin complexes incorporated in thermosensitive copolymer

Daily injections for basal insulin therapy are far from ideal resulting in hypo/hyperglycemic episodes associated with fatal complications in type-1 diabetes patients. Here we report a delivery system that provides controlled release of insulin closely mimicking physiological basal insulin requirement for an extended period following a single subcutaneous injection. Stability of insulin was significantly improved by formation of zinc-insulin hexamers, further stabilized by electrostatic complex formation with chitosan polymer. Insulin complexes were homogenously incorporated into PLA-PEG-PLA, a biodegradable thermogel copolymer, that instantaneously forms a subcutaneous gel-depot following injection. Chitosan polymer was hydrophobically modified using oleic acid prior to complex formation with insulin to enable distribution of oleic acid-grafted-chitosan‑zinc-insulin complexes into the hydrophobic core of PLA-PEG-PLA thermogel-copolymer micelles. In vivo, daily administration of marketed long-acting insulin, glargine, resulted in fluctuating blood glucose levels between 91 and 443 mg/dL in type 1 diabetic rats. However, single administration of thermogel copolymeric formulation successfully demonstrated slow diffusion of insulin complexes maintaining peak-free basal insulin level of 21 mU/L for 91 days. Sustained release of basal insulin also correlated with efficient glycemic control (blood glucose <120 mg/dL), prevention of diabetic ketoacidosis and absence of cataract development, unlike other treatment groups. Moreover, there was no sign of inflammation, tissue damage, or collagen deposition around depot site, suggesting exceptional biocompatibility of the formulation for long-term use.

Fixed-Ratio Combinations of Basal Insulin and GLP-1RA in the Management of Type 2 Diabetes Mellitus: Highlights from the Literature

New pieces of evidence suggest that combining basal insulin with glucagone-like peptide 1 receptor agonists (GLP-1RA) in patients with type 2 diabetes could promptly ameliorate glucose control and prevent both hypoglycemic events and unnecessary weight gain compared to more intensive insulin regimens. To review the efficacy/effectiveness and safety of fixed-ratio combinations of basal insulin and GLP- 1RA (FRCs). Authors searched PubMed/MEDLINE, ClinicalTrials.gov, Cochrane Library, and Google Scholar for freely available original articles, randomized clinical trials (RCTs), clinical reviews, and meta-analysis written in English until January 2020. FRCs provide significative reductions in HbA1c levels in both insulin-naïve (-1.4% to -2%) and insulin- experienced (-1.5% to -2%) type 2 diabetic patients with moderate glucose impairment. More patients achieved the recommended glycemic targets on FRCs compared to those on mono-therapy with basal insulin or GLP-1RAs. The intensification with FRCs results in better glycemic control compared to basal insulin at fasting as well as during the postprandial state. The frequency of hypoglycemia is similar or lower in patients treated with FRCs than in those on basal insulin alone at a similar dose. Weight trend can be variable, ranging from -2.7 to +2 Kg for iDegLira and -0.7 to -1.3 Kg for iGlar- Lixi. However, a lower weight gain is obtained with iDegLira compared to iDeg (-2.2 to -2.5 Kg), iGlar (-1.7 to -3.2 Kg), and basal-bolus (-3.6 Kg) as well as with iGlarLixi compared to iGlar (-1.4 Kg). FRCs should be considered to safely improve the metabolic control in type 2 diabetic patients with moderate glycemic impairment while on oral medications, basal oral regimen or GLP-1RAs. However, a few but significative pieces of evidence suggest that FRCs could be a safe and effective treatment instead of a low dose basal-bolus intensification for patients with mild or moderate glucose impairment in order to reduce the risk of hypoglycemia and unnecessary weight gain, and for simplifying treatment regimen as well.

A Real-World Observational Study Evaluating the Probability of Glycemic Control with Basal Insulin or Glucagon-Like Peptide-1 Receptor Agonist in Japanese Patients with Type 2 Diabetes

INTRODUCTION

The effectiveness of basal insulin (BI) or glucagon-like peptide-1 receptor agonists (GLP-1 RAs) in providing glycemic control in patients with type 2 diabetes (T2D) in Japanese routine practice is not well known. This real-world observational study evaluated the probability of achieving glycemic control in Japanese patients with T2D uncontrolled by oral antidiabetic drugs (OADs) who initiated BI or GLP-1 RA therapy.

METHODS

Patients with T2D aged ≥ 18 years initiating BI or GLP-1 RA therapy following treatment with OADs were selected from real-world data (RWD) retrieved from a large electronic medical record database in Japan, using data from 01 January 2010 to 30 June 2019. Patients were required to have glycated hemoglobin (HbA1c) ≥ 7% within 90 days prior to the first prescription of BI or GLP-1 RA. The probability of reaching first HbA1c < 7% was assessed over a 24-month period in cohorts of patients who initiated BI (n = 3477) or GLP-1 RA (n = 780) and in subcohorts by number of OADs at baseline (1, 2, or ≥ 3), HbA1c at baseline (≥ 7 to < 8%, ≥ 8 to < 9%, or ≥ 9%), and age (< 65 or ≥ 65 years).

RESULTS

Mean (standard deviation) baseline HbA1c was 9.4% (1.8%) and 8.8% (1.4%) in patients initiating BI or GLP-1 RA therapy, respectively. The cumulative probability of achieving glycemic control was 50.1% with BI and 60.3% with GLP-1 RA therapy, respectively, at 12 months, and 60.8% and 66.6%, respectively, at 24 months. Quarterly (3-month intervals) conditional probabilities of achieving glycemic control decreased over time and were < 10% after 12 months. Patients with more OADs or higher HbA1c at baseline had a lower probability of achieving glycemic control.

CONCLUSION

Among Japanese patients with T2D who initiated BI or GLP-1 RA therapy after treatment with OADs, the probability of reaching first glycemic control diminished over time. Further therapy intensification is warranted in patients who do not achieve glycemic control within 6-12 months with BI or GLP-1 RA, particularly those with high HbA1c or taking multiple OADs.

Glycemic Control Among Patients Newly Prescribed IDegLira Across Prior Therapy Group in US Real-World Practice

INTRODUCTION

IDegLira is a fixed-ratio combination of insulin degludec and liraglutide indicated for the treatment of type 2 diabetes (T2D). We report the first real-world study describing change in glycated hemoglobin (HbA1c) among US patients who initiated IDegLira. The aim of the study was to observe and describe changes in glycemic control and weight in patients initiating IDegLira in real-world clinical practice.

METHODS

Patients in the Practice Fusion electronic medical record database who initiated treatment with IDegLira between March 2017 and June 2018 were identified (n = 1384). To be included in the analyses, the study population needed to meet age, time in database pre- and post-initiation, and availability of HbA1c data at baseline and follow-up requirements. Data were analyzed according to baseline therapy subgroups and whether patients were intensifying (primary analysis group) or simplifying (secondary analysis group) their diabetes treatment. Changes in clinical outcomes from baseline were evaluated by paired t tests and linear regression.

RESULTS

The overall study population comprised 296 patients, of whom 206 were included in the primary analysis group and 90 were included in the secondary analysis group. In the adjusted analyses, there was a reduction in HbA1c of - 1.1% in the primary analysis group, with the HbA1c reduction in all prior therapy groups ranging from - 0.8% for those previously on basal insulin to - 1.0% for those previously on non-injectable therapy (p < 0.0001 for all). In a similar adjusted analysis, there was a statistically significant but small (1.0 lb/0.45 kg) change in weight in the primary analysis group. In the secondary analysis, patients previously on more than one injection daily switched to a more simplified therapy without compromising on glycemic control (HbA1c change of - 0.16%).

CONCLUSION

Consistent with previous real-world studies, IDegLira lowered HbA1c across different background prior glucose-lowering therapies, with minimal impact on weight.

Low Blood Glucose Index and Hypoglycaemia Risk: Insulin Glargine 300 U/mL Versus Insulin Glargine 100 U/mL in Type 2 Diabetes

INTRODUCTION

We examined differences in hypoglycaemia risk between insulin glargine 300 U/mL (Gla-300) and insulin glargine 100 U/mL (Gla-100) in individuals with type 2 diabetes (T2DM) using the low blood glucose index (LBGI).

METHODS

Daily profiles of self-monitored plasma glucose (SMPG) from the EDITION 2, EDITION 3 and SENIOR treat-to-target trials of Gla-300 versus Gla-100 were used to compute the LBGI, which is an established metric of hypoglycaemia risk. The analysis also examined documented (blood glucose readings < 3.0 mmol/L [54 mg/dL]) symptomatic hypoglycaemia (DSH).

RESULTS

Overall LBGI in EDITION 2 and SENIOR and night-time LBGI in all three trials were significantly (p < 0.05) lower with Gla-300 versus Gla-100. The largest differences between Gla-300 and Gla-100 were observed during the night. In all three trials, individual LBGI results correlated with the observed number of DSH episodes per participant (EDITION 2 [r = 0.35, p < 0.001]; EDITION 3 [r = 0.26, p < 0.001]; SENIOR [r = 0.30, p < 0.001]). Participants at moderate risk of experiencing hypoglycaemia (defined as LBGI > 1.1) reported 4- to 8-fold more frequent DSH events than those at minimal risk (LBGI ≤ 1.1) (p ≤  0.009).

CONCLUSIONS

The LBGI identified individuals with T2DM at risk for hypoglycaemia using SMPG data and correlated with the number of DSH events. Using the LBGI metric, a lower risk of hypoglycaemia with Gla-300 than Gla-100 was observed in all three trials. The finding that differences in LBGI are greater at night is consistent with previously published differences in the pharmacokinetic profiles of Gla-300 and Gla-100, which provides the physiological foundation for the presented results.

Safety of lixisenatide plus basal insulin treatment regimen in Indian people with type 2 diabetes mellitus during Ramadan fast: A post hoc analysis of the LixiRam randomized trial

AIMS

Hypoglycemia is one of the most important complications associated with Ramadan fasting in people with type 2 diabetes. LixiRam (NCT02941367) was the first randomized trial comparing safety and efficacy of lixisenatide + basal insulin (BI) vs. sulphonylurea + BI in people with type 2 diabetes who fast during Ramadan. This post hoc analysis focuses on the LixiRam study population from India.

METHODS

Adults with type 2 diabetes insufficiently controlled with sulphonylurea + BI ± another oral anti-hyperglycemic drug were randomized 1:1 to receive lixisenatide + BI or to continue sulphonylurea + BI treatment.

RESULTS

In total, 150 participants were randomized in India. One participant (1.3%) with lixisenatide + BI vs. 5 participants (6.8%) with sulphonylurea + BI experienced ≥1 documented symptomatic hypoglycemic event during the Ramadan fast (odds ratio [OR]: 0.22; 95% confidence interval [CI]: 0.02-1.93). Incidence of any hypoglycemia was numerically lower with lixisenatide + BI vs. sulphonylurea + BI during Ramadan fasting (1.3% [1/75] vs. 14.7% [11/75], respectively; OR: 0.09; 95% CI: 0.01-0.69). No new safety signals were identified.

CONCLUSIONS

A combination of lixisenatide prandial GLP1-RA + BI may be a suitable treatment option for people with type 2 diabetes who elect to fast during Ramadan. Clinical Trial Registry: clinicaltrials.gov (NCT02941367).

Efficacy and Safety of Basal Insulin-Based Treatment Versus Twice-Daily Premixed Insulin After Short-Term Intensive Insulin Therapy in Patients with Type 2 Diabetes Mellitus in China: Study Protocol for a Randomized Controlled Trial (BEYOND V)

INTRODUCTION

Many Chinese patients who are uncontrolled by oral antidiabetic drugs (OADs) receive short-term intensive insulin therapy (IIT) in hospital to rapidly relieve glucose-associated toxicity and to preserve/improve β-cell function. However, evidence for optimizing insulin algorithms for maintenance treatment after IIT is lacking. This study will compare the efficacy and safety of basal insulin-based treatment versus twice-daily premixed insulin in type 2 diabetes mellitus (T2DM) patients after short-term in-hospital IIT.

METHODS

This 26-week randomized, multicenter, positive-controlled, open-label, parallel-group study will enroll approximately 400 male and female patients aged 18-70 years with poorly-controlled T2DM (HbA1c > 7.5%) despite treatment with metformin plus at least one other OAD for 8 or more weeks. During a run-in period of 7-10 days, patients will be treated in-hospital with IIT comprising insulin glargine (Lantus^®) once daily and insulin glulisine (Apidra^®) three times daily; both regimens will be titrated daily to achieve the glycemic goal. Eligible patients will then be randomized in a 1:1 ratio to insulin glargine plus OADs or twice-daily premixed insulin (NovoLog^® Mix 70/30) for 24 weeks, with metformin maintained throughout the study in both treatment groups. The primary endpoint is HbA1c change from baseline to week 24. Secondary endpoints include assessment of fasting plasma glucose, total daily insulin dose, hypoglycemia incidence, body weight change, adverse events, and patient satisfaction.

DISCUSSION

Given the current lack of clinical data, this study will provide evidence supporting safe and effective glycemic control using basal insulin glargine-based therapy plus OADs compared with twice-daily premixed insulin in Chinese patients with T2DM after short-term IIT. This will assist physicians by providing a wider choice of treatments.

TRIAL REGISTRATION

ClinicalTrials.gov identifier, NCT03359837 (registered on 2 December 2017).

Impact of Simultaneous Versus Sequential Initiation of Basal Insulin and Glucagon-like Peptide-1 Receptor Agonists on HbA1c in Type 2 Diabetes: A Retrospective Observational Study

INTRODUCTION

When and how to intensify treatment in patients with type 2 diabetes (T2D) not achieving glycated hemoglobin (HbA1c) targets with oral antidiabetic drugs (OADs) in clinical practice remains a matter of clinical preference. This pilot study was conducted using the retrospective observational data from such patients to evaluate the impact on HbA1c of three treatment sequences: simultaneous initiation of basal insulin (BI) and a glucagon-like peptide-1 receptor agonist (GLP-1 RA; Cohort 1); BI followed by GLP-1 RA initiation within a 90-day timeframe (Cohort 2); or BI followed by GLP-1 RA initiation beyond 90 days (Cohort 3).

METHODS

Data from the regional US electronic medical records database, Research Action for Health Network (REACHnet), were extracted for all patients with T2D aged ≥ 18 years who had encounter dates between January 2011 and August 2017 and ≥ 1 HbA1c laboratory value(s) < 90 days before BI initiation and ≥ 2 HbA1c laboratory values within 1 year after BI initiation and who met the inclusion criteria for GLP-1 RA initiation set for Cohorts 1, 2, or 3. The primary endpoints were the proportion of patients achieving HbA1c < 7.0%, which was estimated via Kaplan-Meier analysis, and change in HbA1c within 12 months.

RESULTS

Overall, 869 patients were analyzed, of whom 109 were in Cohort 1, 301 in Cohort 2, and 459 in Cohort 3. Baseline HbA1c was 10.3 ± 2.1, 10.3 ± 2.0, and 10.2 ± 2.1% for these three cohorts, respectively. Statistically significantly more patients in Cohort 1 than in Cohort 3 achieved HbA1c < 7.0% (33.4 vs. 20.9%, respectively; p  = 0.0186). Mean observed reductions in HbA1c at 12 months were - 1.7% (Cohort 1), - 1.5% (Cohort 2), and - 1.3% (Cohort 3).

CONCLUSIONS

Simultaneous initiation of BI and GLP-1 RA achieves glycemic control more effectively than sequential initiation of BI with GLP-1 RA added beyond 90 days.

Nearly a Century of Insulin at Sanofi: Looking Back Over the Decades of Production and Development

Almost a century ago, the first insulin was produced by Banting, Best, MacLeod and Collip in Toronto, thereby enabling life-saving treatment for people with diabetes. Since then, there have been many advancements in insulin production and development of new insulin analogues. In this article, we reflect on the rich heritage of Sanofi and its predecessor, Hoechst, in insulin production and development, from being one of the first companies to produce insulin in Europe in 1923, to modern-day insulin analogues and integrated care solutions at present-day Sanofi.

Best Practices and Tools for Titrating Basal Insulins: Expert Opinion from an Indian Panel via the Modified Delphi Consensus Method

AIM

To develop an evidence-based expert group consensus document on the best practices and simple tools for titrating basal insulins in persons with type 2 diabetes mellitus (T2DM).

BACKGROUND

Glycemic control is suboptimal in a large proportion of persons with T2DM, despite insulin therapy, thereby increasing the risk of potentially severe complications. Early initiation of insulin therapy and appropriate dose titration are crucial to achieving glycemic targets. Attitudes and practices among healthcare professionals (HCPs) and perceptions about insulin therapy among persons with diabetes contribute largely to suboptimal glycemic control. Improving HCP-patient communication, encouraging the use of additional educational tools, and providing support for the titration process to increase confidence, both at the initiation visit and at home, facilitate the optimization of dose titration. In Indian settings, specific guidelines and a consensus statement are lacking on the optimal insulin initiation dose, frequency of dose titration, and basal insulin profile needed to achieve optimal titration. In clinical practice, physicians and persons with diabetes often do not adhere to the titration algorithms that currently exist for the purpose of achieving optimal titration as they perceive these to be very cumbersome. In this context, a group of experts met at an advisory board meeting and arrived at a consensus on best practices for the titration of basal insulin in persons withT2DM in India, using the modified Delphi methodology.

REVIEW RESULTS

After a review of evidence and further discussions, the expert group provided recommendations on insulin initiation dose, ideal period for titration in practice, titration regimen for use in practice, basal insulin profile for titration, and choosing a self-monitoring blood glucose schedule for titration.

CONCLUSIONS

In the management of T2DM, insulin can be effectively titrated by following a few simple recommendations. The use of second-generation basal insulin aids in mitigating the risk of hypoglycemic events. The implementation of a simplified titration regimen is crucial to achieving glycemic targets and long-term treatment goals.

Efficacy and Safety of Treatment with New Basal Insulin Analogues in Type 1 Diabetes: Nation-Wide Survey

INTRODUCTION

To date, only a few studies have addressed the long-term safety of basal insulins. We have therefore investigated the efficacy and safety of all available basal insulins used in the treatment of type 1 diabetes, using data from national databases in Sweden.

METHODS

We assessed patients with type 1 diabetes who were using insulin glargine 100 U/mL (IG100) and who either continued using IG100 or switched to insulin glargine 300 U/mL (IG300) or insulin degludec (ID) for differences in clinical characteristics at baseline (index date) and subsequent changes in glycated haemoglobin (HbA1c), weight and hospitalizations caused by hypoglycaemia, cardiovascular disease or death.

RESULTS

The mean follow-up time was 1.1 years for patients who switched to IG300 and ID and 1.6 years for those remaining on IG100. There were no marked differences in clinical characteristics between the groups, but patients on IG100 were slightly older and had used insulin pumps or continuous glucose monitors more seldom. The mean HbA1c levels were similar, and 4% of the patients had a history of cardiovascular disease. HbA1c decreased in all groups during follow-up, while the body mass index remained virtually unchanged. Rates of severe hypo- or hyperglycaemia were low and similar between the groups. Sixteen patients (0.7%) treated with IG300 and 13 patients (0.8%) treated with ID died during follow-up, while 221 patients (1.95%) on IG100 therapy died. All other severe adverse events were numerically more frequent in those patients receiving IG100, while there were no apparent differences between those receiving IG300 and those on ID.

CONCLUSION

The long-term effects and safety of IG300 and ID appear to be very similar in adult patients with type 1 diabetes. The results of this study suggest that these basal insulin analogues may provide benefits compared with the established reference IG100.

IDegLira Improves Glycemic Control in Japanese Patients with Uncontrolled Type 2 Diabetes on Premixed Insulin Therapy

INTRODUCTION

DUAL II Japan (NCT02911948) was a 26-week, phase 3a randomized, treat-to-target trial which compared the efficacy and safety of IDegLira with degludec in 210 Japanese patients with type 2 diabetes (T2D) uncontrolled on premixed or basal insulin therapy. The DUAL II Japan trial presented the opportunity for a post hoc analysis to examine the safety and efficacy of switching patients from a premixed regimen (containing both basal and bolus insulin components) to IDegLira.

METHODS

Patients from DUAL II Japan were stratified according to prior insulin regimen (premixed or basal insulin). The following endpoints were assessed in this post hoc analysis by pre-trial insulin regimen: change in HbA_1c, body weight, daily total insulin dose, nine-point self-measured blood glucose, and severe or blood glucose-confirmed hypoglycemia (defined as severe or plasma glucose less than 56 mg/dL).

RESULTS

This post hoc analysis included 39 patients who switched from premixed insulin to IDegLira. The treatment effect in this population was independent of insulin type at baseline (premixed or basal; interaction test, P = 0.2535). In patients switching from premixed insulin to IDegLira, mean [standard deviation (SD)] HbA_1c was 8.26% (0.73) at baseline and 6.68% (0.93) at week 26. Mean (SD) body weight was reduced by 1.5 (2.9) kg. At week 26, daily insulin dose was 34.2 dose steps. After 26 weeks, the mean prandial increment was smaller at all meals with IDegLira irrespective of pre-trial insulin regimen. Rate of hypoglycemic events was 2.59 events/patient-year of exposure over the 26 weeks.

CONCLUSION

This post hoc study is the first to evaluate the switch from premixed insulin to IDegLira in patients with uncontrolled T2D. IDegLira initiation resulted in improved HbA_1c and weight loss. This study offers insight into the effectiveness and safety of switching patients from premixed insulin therapy to IDegLira, and provides support for further investigation.

TRIAL REGISTRATION

NCT02911948.

Combining GLP-1 Receptor Agonists and Basal Insulin in Older Adults with Type 2 Diabetes: Focus on Lixisenatide and Insulin Glargine

Estimates suggest that there are currently 122.8 million adults 65-99 years of age living with diabetes, of whom 90-95% are diagnosed with type 2 diabetes (T2D). Over the past two decades, a greater understanding of the complex and multifactorial pathogenesis of T2D has resulted in the development and introduction of new-generation classes of glucose-lowering therapies, which are now extensively endorsed by prevailing guidelines and are increasingly being used worldwide. These newer agents may further assist in the effective pharmacological management of T2D through the provision of patient-centered care that acknowledges multimorbidity and is respectful of and responsive to individual patient preferences and barriers. Given these considerations, the therapeutic approach in older patients with T2D is complex, particularly in those who have functional dependence, frailty, dementia, or who are at end-of-life. It is currently too early to draw conclusions on the long-term use of newer glucose-lowering agents in this population, as their efficacy and safety in older adults remains largely unknown. In this review, we will discuss considerations for the use of glucose-lowering treatments in older adults, with particular focus on the use of basal insulin and glucagon-like peptide-1 receptor agonists, and the rationale for the use of combination therapy comprising these agents. Finally, we will review clinical data from studies of the fixed-ratio combination of insulin glargine and lixisenatide in older patients with T2D. FUNDING: Sanofi US, Inc.

Favorable Glycemic Control with Once-Daily Insulin Degludec/Insulin Aspart after Changing from Basal Insulin in Adults with Type 2 Diabetes

BACKGROUND

Conflicting results have been reported on the efficacy of insulin degludec/insulin aspart (IDegAsp) compared to basal insulin in type 2 diabetes. We investigated the effects of changing basal insulin to IDegAsp on glycemic control and sought to identify factors related to those effects.

METHODS

In this retrospective study of patients from three referral hospitals, patients with type 2 diabetes using basal insulin with hemoglobin A1c (HbA1c) levels less than 11.0% were enrolled. Basal insulin was replaced with IDegAsp, and data were analyzed from 3 months before to 3 months after the replacement.

RESULTS

Eighty patients were recruited (52.5% male; mean age, 67.0±9.8 years; mean duration of diabetes, 18.9±8.5 years; mean HbA1c, 8.7%±1.0%). HbA1c levels increased during 3 months of basal insulin use, but significantly decreased after changing to IDegAsp (8.28%±1.10%, P=0.0001). The reduction was significant at 6 months in 35 patients whose longer-term data were available. Patients with a measured fasting plasma glucose (m-FPG) lower than their predicted FPG (p-FPG) by regression from HbA1c showed a significant HbA1c reduction caused by the change to IDegAsp, even without a significantly increased insulin dose. However, patients whose m-FPG was higher than their p-FPG did not experience a significant HbA1c reduction, despite a significantly increased insulin dose. Furthermore, the HbA1c reduction caused by IDegAsp was significant in patients with low fasting C-peptide levels and high insulin doses.

CONCLUSION

We observed a significant glucose-lowering effect by replacing basal insulin with IDegAsp, especially in patients with a lower m-FPG than p-FPG.