Achieving Glycaemic Control with Concentrated Insulin in Patients with Type 2 Diabetes

Is Time-Restricted Eating Safe in the Treatment of Type 2 Diabetes?-A Review of Intervention Studies

Time-restricted eating (TRE) has been shown to improve body weight and glucose metabolism in people at high risk of type 2 diabetes. However, the safety of TRE in the treatment of type 2 diabetes is unclear. We investigated the safety of TRE interventions in people with type 2 diabetes by identifying published and ongoing studies. Moreover, we identified the commonly used antidiabetic drugs and discussed the safety of TRE in people with type 2 diabetes considering the use of these drugs. In addition, we addressed the research needed before TRE can be recommended in the treatment of type 2 diabetes. A literature search was conducted to identify published (MEDLINE PubMed) and ongoing studies (ClinicalTrials.gov) on TRE in people with type 2 diabetes. To assess the usage of antidiabetic drugs and to discuss pharmacodynamics and pharmacokinetics in a TRE context, the most used antidiabetic drugs were identified and analysed. Statistics regarding sale of pharmaceuticals were obtained from MEDSTAT.DK which are based on data from the national Register of Medicinal Product Statistics, and from published studies on medication use in different countries. Four published studies investigating TRE in people with type 2 diabetes were identified as well as 14 ongoing studies. The completed studies suggested that TRE is safe among people with type 2 diabetes. Common antidiabetic drugs between 2010 and 2019 were metformin, insulin, dipeptidyl peptidase-4 inhibitors, glucagon-like peptide-1 receptor agonists, sulfonylureas, and sodium-glucose cotransporter-2 inhibitors. Existing studies suggest that TRE is not associated with major safety issues in people with type 2 diabetes as long as medication is monitored and adjusted. However, because of low generalisability of the few studies available, more studies are needed to make concrete recommendations regarding efficacy and safety of TRE in people with type 2 diabetes.

Comparative efficacy and safety of basal insulins: A review

BACKGROUND AND AIM

To provide an update on the usefulness of basal insulin in patients with type 2 diabetes mellitus.

METHODS

We conducted a literature search using PubMed and MEDLINE, BIOSIS, Scopus, EMBASE, ClinicalTrials.gov, Google Scholar, and Springer Online Archives Collection until June 2021.

RESULTS

All basal insulins are similar in efficacy, with only small differences among them in terms of the risk of hypoglycemia.

CONCLUSIONS

For type 2 diabetes mellitus, all basal insulins have a similar efficacy, with some advantage of Glar-300 and Deg-100 in reducing the risk of hypoglycemia compared to Glar-100.

Insulin Pump Therapy for Patients With Type 2 Diabetes Mellitus: Evidence, Current Barriers, and New Technologies

An increasing number of patients with type 2 diabetes mellitus (T2DM) use insulin pumps. The first insulin pumps especially designed for patients with T2DM have recently become available. However, national guidelines do not primarily recommend the use of continuous subcutaneous insulin infusion (CSII) for this patient group. The effectiveness of CSII in T2DM has not yet been convincingly demonstrated, despite some positive evidence. An overview and an assessment of various studies to date will be given. T2DM is a heterogeneous disease with a substantial phenotypic variability; therefore, it is difficult to provide general conclusions about the effectiveness of CSII in T2DM therapy. The pump types, characteristics, and associated barriers may play a relevant role for therapy outcome. Most advanced functions like various bolus dosages offered by conventional insulin pumps are not needed for T2DM treatment and complicate the device handling for this subject group. Additionally, new technologies like increased connectivity, advanced software features, and interoperability are currently becoming available representing further barriers. The implementation of this technological progress might be a benefit for pumps for T2DM as well. However, these have not been sufficiently examined either and increased security challenges due to integrated peripheral components should not be neglected in terms of a sound cybersecurity. Pump features and handling for patients with T2DM should be as easy as possible, indicating a need for insulin pumps specially designed for patients with T2DM. However, it has to be investigated if pumps designed for T2DM are more effective than other intensified insulin regimens.

Variation in hypoglycemia ascertainment and report in type 2 diabetes observational studies: a meta-epidemiological study

INTRODUCTION

Observational studies constitute an important evidence base for hypoglycemia in diabetes management. This requires consistent and reliable ascertainment and reporting methodology, particularly in studies of type 2 diabetes where hypoglycemia risk is heterogeneous. Therefore, we aimed to examine the definitions of hypoglycemia used by observational studies of patients with type 2 diabetes.

RESEARCH DESIGN AND METHODS

We conducted a meta-epidemiological review of observational studies reporting on hypoglycemia or evaluating glucose-lowering medications in adults with type 2 diabetes. MEDLINE and Google Scholar were searched from January 1970 to May 2018. The definitions of non-severe, severe and nocturnal hypoglycemia were examined.

RESULTS

We reviewed 243 studies: 47.7% reported on non-severe hypoglycemia, 77.8% on severe hypoglycemia and 16.9% on nocturnal hypoglycemia; 5.8% did not specify. Among 116 studies reporting non-severe hypoglycemia, 18.1% provided no definition, 23.3% used glucose values, 38.8% relied on patient-reported symptoms, 17.2% accepted either glucose values or patient-reported symptoms and 2.6% relied on International Classification of Disease (ICD) codes. Among 189 studies reporting severe hypoglycemia, 11.1% provided no definition, 53.4% required symptoms needing assistance, 3.7% relied on glucose values, 14.8% relied on ICD codes, 2.6% relied on ICD codes or glucose values and 15.9% required both symptoms needing assistance and glucose values. Overall, 38.2% of non-severe and 67.7% of severe hypoglycemia definitions were consistent with the International Hypoglycemia Study Group.

CONCLUSIONS

The marked heterogeneity in how hypoglycemia is defined in observational studies may contribute to the inadequate understanding and correction of hypoglycemia risk factors among patients with type 2 diabetes.

Effectiveness and safety of insulin glargine Gla-300 in insulin-naïve type 2 diabetes subjects in a real-life setting-the GOAL_RO trial

Background

Basal insulin is the first choice for insulin initiation in type 2 diabetes (T2DM), with the second generation of basal insulin analogues having a lower risk of hypoglycemia compared to the first generation of basal insulins. The aim of our study was to assess on a large cohort of insulin-naïve T2DM subjects the effectiveness and safety of insulin glargine 300 U/mL (Gla-300) in a real-life setting.

Methods

This was a multicenter, prospective, non-interventional, 24 weeks, 3 visits (baseline, 3 and 6 months) trial performed in adult T2DM subjects not achieving glycemic target (HbA1c >7%) with prior oral or GLP-1 RA therapy. The study included 1,095 subjects (55.2% M/44.8% F) in 124 study sites. Mean (±SD) age was 61.1±8.5 years while mean duration of diabetes was 8.8±5.2 years. Mean BMI was 31.7±5.4 kg/m² with 91.2% being overweight or obese. Baseline diabetes treatment included metformin (88.4% of subjects), sulphonylureas (75.4%), DPP-4i (16.7%) and GLP-1 RAs (8%). Comparison between quantitative variables was made with the paired sample t test.

Results

Mean HbA1c at baseline was 9.8%±1.7% with a mean fasting plasma glucose (FBG) of 231.5±67.4 mg/dL. Mean HbA1c decreased to 7.7%±1.2% at 6 months with a mean change from baseline of -2.1% (P<0.001). Overall, 30.7% of subjects reached the HbA1c target of 7%. Final mean dose of Gla-300 was 0.4 IU/kg/day. Mean weight gain was 0.4 kg over 6 months. Adverse events (AEs) were reported by 11.1% of subjects with 2.3% reporting serious adverse events (SAEs). Overall, 4.4% of subjects reporting at least one event of symptomatic or confirmed hypoglycemia. Only 7 episodes of nocturnal and one of severe hypoglycemia were reported.

Conclusions

In conclusion, a significant 2.1% decrease of HbA1c was recorded after 6 months of treatment with Gla-300 with no unexpected safety signals, low risk of hypoglycemia and modest weight gain.

The importance of the initial period of basal insulin titration in people with diabetes

Achieving target glycaemic control is essential in people with diabetes to minimize the risk of long-term complications, and many people with type 2 diabetes will ultimately require basal insulin (BI) therapy to achieve their individualized glycaemic targets. Usually, the first 12 weeks following initiation of BI therapy represents the period when the greatest dose increases and glycaemic reductions occur. Effective glycaemic control combined with minimizing the risk of hypoglycaemia is important to enable the achievement of glycaemic control in the longer term. However, substantial therapeutic inertia exists in clinical practice, both in initiation and up-titration of BI, owing to patient-, physician- and healthcare system-related barriers, including fear of hypoglycaemia and the perception of a burdensome regimen. The more prolonged duration of action, reduced glycaemic variability and lower risk of hypoglycaemia seen with second-generation versus first-generation BI analogues may help alleviate patients' and physicians' concerns and facilitate titration. In turn, optimal BI titration and subsequent metabolic benefits may help improve therapy adherence and self-management. This review details the clinical implications of prompt titration of BI to achieve early glycaemic control, and the importance of minimizing hypoglycaemia risk within the initial titration period. Facilitation of patients' self-management of BI is also addressed.

Aptamer-gold nanoparticle doped covalent organic framework followed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry for selective enrichment and detection of human insulin

In this work, we introduced an aptamer modified Au nanoparticles doped covalent organic frameworks composite (IBAs-AuNPs/COF) to improve the property of selective enrichment of insulin from serum samples. The Au nanoparticles were immobilized on imine-based COF by in-situ reduction reaction via mussel inspired polydopamine coating, and then sulfhydryl-containing aptamers were bonded to the surface of AuNPs through an Au-S linkage. Due to the excellent adsorption property of COF and specific recognition between insulin and IBAs, the IBAs-AuNPs/COF composites show selective and satisfactory extraction property to insulin in serum samples. Excellent specifity was obtained for insulin in the presence of 50-fold interfering substances including human immunoglobulin, lysozyme and biotin. The concentrations of insulin in the range of 1.0 to 50.0 μg L^-1 show good linear relationship (R² = 0.9917) with limit of detection and limit of quantitation of 0.28 μg L^-1 and 0.93 μg L^-1, respectively. Then, the IBAs-AuNPs/COF composites were applied to enrich insulin in serum samples followed by analysis with matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF-MS). After the recovery experiment, the developed method shows good recoveries in range of 91.6%-112.4% with low RSD value (2.4%-9.4%, n = 3) for diabetic and healthy serum samples. The developed IBAs-AuNPs/COF composites propose a new perspective for selective and efficient enrichment of biomarkers in serum samples by functionalized COF.

Association between MIC-1 and Type 2 Diabetes: A Combined Analysis

BACKGROUND AND OBJECTIVES

Type 2 diabetes mellitus (T2DM) is an epidemic disease that endangers human health seriously. Recently, a large number of reports have revealed that macrophage-inhibiting cytokine-1 (MIC-1) is linked with T2DM, but the results were inconclusive. The aim of this study was to perform bioinformatics analysis of the association between MIC-1 and T2DM.

MATERIAL AND METHODS

Datasets and relevant literatures were searched in Gene Expression Omnibus (GEO), PubMed, Google Scholar, and Web of Science till September 20, 2019. Expression levels of MIC-1 were extracted, pooled, and compared between T2DM cases and controls.

RESULTS

In summary, 11 GEO datasets and 3 articles with 421 T2DM cases and 711 controls were finally included. The expression level of MIC-1 was significantly higher in T2DM patients compared with controls, with a standard mean difference (SMD) of 0.54 and a 95% confidence interval (95% CI) of 0.24-0.83; in blood samples, the difference was still significant (SMD = 0.65; 95%CI = 0.24-1.06). Meanwhile, the expression level of MIC-1 plays a significant role in differentiating T2DM cases from controls; the combined sensitivity, specificity, and odds ratio were 0.83 (95%CI = 0.72-0.90), 0.59 (95%CI = 0.45-0.72), and 1.64 (95%CI = 1.35-1.99), respectively. The summary receiver operating characteristic (SROC) curve demonstrated that the area under the curve (AUC) was 0.81 (95%CI = 0.77-0.84).

CONCLUSION

Our results suggested that the expression levels of MIC-1 were significantly higher in T2DM patients in multiple tissues including blood samples.

Efficacy and safety of the second generation basal insulin analogs in type 2 diabetes mellitus: A critical appraisal

Type 2 diabetes mellitus is a progressive disease, which requires insulin treatment when other management is no longer effective. Although, insulin plays a vital role in the treatment of diabetes, conventional basal insulins have certain limitations, which have led to the development of more stable and peak less analogues.

OBJECTIVES

To analyze the efficacy and safety of second generation vs. first generation basal insulins, and the efficacy and safety of second generation vs. second generation basal insulins, in patients with type 2 diabetes mellitus, from the evidence provided by head-to-head randomized controlled trials.

METHODS

The following electronic databases were searched: PubMed and MEDLINE, Scopus, BIOSIS, Embase, ClinicalTrials.gov, Google Scholar, and Springer Online Archives Collection, from January 1966 to October 2018. Articles resulting from these searches and relevant references cited in those articles were examined.

RESULTS

The efficacy among insulins evaluated was similar, however, second generation insulins cause a lower risk of hypoglycemia compared to first generation insulins. A single study showed similar metabolic control with subtle differences in the risk of hypoglycemia among second generation insulins.

CONCLUSIONS

The second-generation basal insulins result in metabolic control similar to first generation insulins, with lower risk of hypoglycemia. Second-generation insulins have comparable efficacy, with some differences in the risk of hypoglycemia.