Dataset Information

Cardiovascular effects of basal insulins.

ABSTRACT: Basal insulin is an important component of treatment for both type 1 and type 2 diabetes. One of the principal aims of treatment in patients with diabetes is the prevention of diabetic complications, including cardiovascular disease. There is some evidence, although controversial, that attainment of good glycemic control reduces long-term cardiovascular risk in both type 1 and type 2 diabetes. The aim of this review is to provide an overview of the potential cardiovascular safety of the different available preparations of basal insulin. Current basal insulin (neutral protamine Hagedorn [NPH], or isophane) and basal insulin analogs (glargine, detemir, and the more recent degludec) differ essentially by various measures of pharmacokinetic and pharmacodynamic effects in the bloodstream, presence and persistence of peak action, and within-subject variability in the glucose-lowering response. The currently available data show that basal insulin analogs have a lower risk of hypoglycemia than NPH human insulin, in both type 1 and type 2 diabetes, then excluding additional harmful effects on the cardiovascular system mediated by activation of the adrenergic system. Given that no biological rationale for a possible difference in cardiovascular effect of basal insulins has been proposed so far, available meta-analyses of publicly disclosed randomized controlled trials do not show any signal of increased risk of major cardiovascular events between the different basal insulin analogs. However, the number of available cardiovascular events in these trials is very small, preventing any clear-cut conclusion. The results of an ongoing clinical trial comparing glargine and degludec with regard to cardiovascular safety will provide definitive evidence.

SUBMITTER: Mannucci E

PROVIDER: S-EPMC4504337 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Cardiovascular effects of basal insulins.

Mannucci Edoardo E Giannini Stefano S Dicembrini Ilaria I

Drug, healthcare and patient safety 20150710

Basal insulin is an important component of treatment for both type 1 and type 2 diabetes. One of the principal aims of treatment in patients with diabetes is the prevention of diabetic complications, including cardiovascular disease. There is some evidence, although controversial, that attainment of good glycemic control reduces long-term cardiovascular risk in both type 1 and type 2 diabetes. The aim of this review is to provide an overview of the potential cardiovascular safety of the differen ...[more]

PMID: 26203281

Similar Datasets

Project description:BackgroundTo identify possible differences in cardiovascular (CV) risk among different insulin therapies, we performed pre-specified meta-analyses across the clinical program for basal insulin peglispro (BIL), in patients randomized to treatment with BIL or comparator insulin [glargine (IG) or NPH].MethodsOne phase 2 (12-week) and 6 phase 3 (26 to 78-week) randomized studies of BIL compared to IG or NPH, in patients with type 1 or type 2 diabetes, were included. The participants were diverse with respect to demographics, baseline glycemic control, and concomitant disease or medications, but treatment groups were comparable in each study. For any potential CV or neurovascular event, relevant medical information was provided to a blinded external clinical events committee (C5Research, Cleveland Clinic, Cleveland, OH, USA) for adjudication. Cox regression analysis was used to compare treatment groups. The primary endpoint was a composite of adjudicated MACE+ [CV death, myocardial infarction (MI), stroke, or hospitalization for unstable angina].ResultsThe pooled population included 5862 patients in the safety evaluation, with randomization to BIL:IG:NPH of 3578:2072:212. Mean age was 54.1 years, 27 % had type 1 diabetes, 56 % were male, and 88 % were white. Baseline demographic and clinical characteristics, including use of statins or other lipid-lowering drugs, were comparable between BIL and comparators. A total of 83 patients experienced at least 1 MACE+ and 70 patients experienced at least 1 MACE (CV death, MI, or stroke). Overall, there were no treatment-associated differences in time to MACE+ [hazard ratio (HR) for BIL versus comparator insulin (95 % CI): 0.82 (0.53-1.27)] or MACE [0.83 (0.51-1.33)]. In 4297 patients with type 2 diabetes, there were 71 MACE+ events [HR: 1.02 (95 % CI: 0.63-1.65), p = 0.94]. In 1565 patients with type 1 diabetes, there were only 12 MACE+ [0.24 (0.07-0.85), p = 0.027]. There were no differences in all-cause death between BIL and comparators. Sub-group analyses did not identify any sub-population with increased risk with BIL versus comparator insulins.ConclusionsTreatment with BIL versus comparator insulin in patients with type 1 diabetes or type 2 diabetes was not associated with increased risk for major CV events in the studies analyzed.

Project description:IntroductionAccording to Chinese guidelines, basal insulin (BI) or premixed insulins are recommended insulin starters following the failure of oral antihyperglycemic medication (OAM) in Chinese patients with type 2 diabetes (T2D). This pragmatic study investigated the long-term effectiveness, safety, and cost of add-on BI and mid-mixture insulin analog (MMI) regimens in Chinese patients with T2D.MethodsThis multicenter, open-label, pragmatic study randomized patients 1:1 to receive either BI or MMI with OAMs adjusted according to current standards of care. We evaluated the change in glycated hemoglobin (HbA1c) from baseline, safety parameters, and antidiabetic medication costs.ResultsChange in HbA1c from baseline showed a statistically greater decrease at week 48 in the MMI group (MMI: - 2.03% [0.06] vs. BI: - 1.82% [0.06]; P < 0.05). Both groups showed decreases in fasting plasma glucose (mmol/L) (MMI: - 2.53 [0.14] vs. BI: - 3.19 [0.14]; P < 0.01) and postprandial glucose (mmol/L) (MMI: - 4.35 [0.22] vs. BI: - 4.33 [0.23]). More patients in the BI group showed increases in OAM use, while OAM use decreased in the MMI group. Both groups showed stable glycemic control with a very limited insulin dose change from week 24 to week 48. The incidence of total hypoglycemia was higher in the MMI group (MMI: 124% [30.7] vs. BI: 76% [18.5], P < 0.0001), but no incidence of severe hypoglycemia was reported in either group. Treatment costs, in terms of average daily cost and cost of glycemic control, were higher in the BI group.ConclusionIn long-term real-world use, the MMI and BI groups demonstrated improved glycemic control, with the MMI group showing more significant improvement than the BI group. Hypoglycemia incidence was higher in the MMI group, with no major safety issues through week 48. MMI is likely to provide better price value than BI for the treatment of T2D in Chinese patients.Trial registrationClinicalTrials.gov identifier: NCT03018938.

Project description:ObjectiveMembers of the insulin/insulin-like growth factor (IGF) superfamily are well conserved across the evolutionary tree. We recently showed that four viruses in the Iridoviridae family possess genes that encode proteins highly homologous to human insulin/IGF-1. Using chemically synthesized single-chain (sc), i.e., IGF-1-like, forms of the viral insulin/IGF-1-like peptides (VILPs), we previously showed that they can stimulate human receptors. Because these peptides possess potential cleavage sites to form double chain (dc), i.e., more insulin-like, VILPs, in this study, we have characterized dc forms of VILPs for Grouper iridovirus (GIV), Singapore grouper iridovirus (SGIV) and Lymphocystis disease virus-1 (LCDV-1) for the first time.MethodsThe dcVILPs were chemically synthesized. Using murine fibroblast cell lines overexpressing insulin receptor (IR-A or IR-B) or IGF1R, we first determined the binding affinity of dcVILPs to the receptors and characterized post-receptor signaling. Further, we used C57BL/6J mice to study the effect of dcVILPs on lowering blood glucose. We designed a 3-h dcVILP in vivo infusion experiment to determine the glucose uptake in different tissues.ResultsGIV and SGIV dcVILPs bind to both isoforms of human insulin receptor (IR-A and IR-B) and to the IGF1R, and for the latter, show higher affinity than human insulin. These dcVILPs stimulate IR and IGF1R phosphorylation and post-receptor signaling in vitro and in vivo. Both GIV and SGIV dcVILPs stimulate glucose uptake in mice. In vivo infusion experiments revealed that while insulin (0.015 nmol/kg/min) and GIV dcVILP (0.75 nmol/kg/min) stimulated a comparable glucose uptake in heart and skeletal muscle and brown adipose tissue, GIV dcVILP stimulated 2-fold higher glucose uptake in white adipose tissue (WAT) compared to insulin. This was associated with increased Akt phosphorylation and glucose transporter type 4 (GLUT4) gene expression compared to insulin in WAT.ConclusionsOur results show that GIV and SGIV dcVILPs are active members of the insulin superfamily with unique characteristics. Elucidating the mechanism of tissue specificity for GIV dcVILP will help us to better understand insulin action, design new analogs that specifically target the tissues and provide new insights into their potential role in disease.

Dataset Information

Cardiovascular effects of basal insulins.

Publications

Cardiovascular effects of basal insulins.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets