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Teng R, Kurian M, Close KL, Buse JB, Peters AL, Alexander CM. Comparison of Protocols to Reduce Diabetic Ketoacidosis in Patients With Type 1 Diabetes Prescribed a Sodium-Glucose Cotransporter 2 Inhibitor. Diabetes Spectr 2021; 34:42-51. [PMID: 33627993 PMCID: PMC7887530 DOI: 10.2337/ds20-0038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE | Sodium-glucose cotransporter 2 (SGLT2) inhibitors are approved for type 1 diabetes in Europe and Japan, with off-label use in type 1 diabetes in the United States. Although there were no consistent approaches to risk mitigation in clinical trials of these agents, protocols have been developed to try to reduce the risk of diabetic ketoacidosis (DKA). However, a validated risk mitigation strategy does not exist. We reviewed available DKA risk mitigation protocols to better understand the various strategies currently in use. METHODS | We conducted a search of the published medical literature and other medical information sources, including conference presentations, for protocols. We then categorized the information provided into guidance on patient selection, initiation of SGLT2 inhibitors, ketone monitoring, necessary patient action in the event of ketosis or DKA, and inpatient treatment of ketosis or DKA. RESULTS | Patient selection is generally similar among the protocols, although some require a minimum BMI and insulin dose. All protocols advocate routine measurement of ketones, although some insist on blood ketone tests. Although action steps for ketosis varies, all protocols advocate rapid patient intervention. The importance of evaluating ketones and acid-base balance even in the absence of hyperglycemia is emphasized by all protocols, as is the need to continue administering insulin until ketosis has resolved. CONCLUSION | DKA risk mitigation must be pursued systematically in individuals with type 1 diabetes, although the best strategy remains to be determined. Given the ongoing need for adjunctive therapies in type 1 diabetes and current use of SGLT2 inhibitors for this purpose, additional education and research are crucial, especially in the hospital environment, where DKA may not be diagnosed promptly and treated appropriately.
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Marx N, Davies MJ, Grant PJ, Mathieu C, Petrie JR, Cosentino F, Buse JB. Guideline recommendations and the positioning of newer drugs in type 2 diabetes care. Lancet Diabetes Endocrinol 2021; 9:46-52. [PMID: 33159841 DOI: 10.1016/s2213-8587(20)30343-0] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 09/18/2020] [Accepted: 09/23/2020] [Indexed: 01/01/2023]
Abstract
Cardiovascular outcome trials in patients with type 2 diabetes at high cardiovascular risk have led to remarkable advances in our understanding of the effectiveness of GLP-1 receptor agonists and SGLT2 inhibitors to reduce cardiorenal events. In 2019, the American Diabetes Association (ADA), European Association for the Study of Diabetes (EASD), and European Society of Cardiology (ESC) published updated recommendations for the management of such patients. We are concerned that ongoing discussions focusing on the differences between the endocrinologists' consensus report from the ADA and EASD and cardiologists' guidelines from the ESC are contributing to clinical inertia, thereby effectively denying evidence-based treatments advocated by both groups to patients with type 2 diabetes and cardiorenal disease. A subset of members from the writing groups of the ADA-EASD consensus report and the ESC guidelines was convened to emphasise where commonalities exist and to propose an integrated framework that encompasses the views incorporated in management approaches proposed by the ESC and the ADA and EASD. Coordinated action is required to ensure that people with type 2 diabetes, cardiovascular disease, heart failure, or chronic kidney disease are treated appropriately with an SGLT2 inhibitor or GLP-1 receptor agonist. In our opinion, this course should be initiated independent of background therapy, current glycaemic control, or individualised treatment goals.
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Walker CP, McFerren AL, Rammani DR, Buse JB, Frohlich F. Metabolic state and gustatory perception shapes dynamic interplay between cortical excitability and motor response. Brain Stimul 2020; 14:202-205. [PMID: 33309841 DOI: 10.1016/j.brs.2020.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 11/29/2020] [Accepted: 12/04/2020] [Indexed: 12/15/2022] Open
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Marso SP, Baeres FMM, Bain SC, Goldman B, Husain M, Nauck MA, Poulter NR, Pratley RE, Thomsen AB, Buse JB. Effects of Liraglutide on Cardiovascular Outcomes in Patients With Diabetes With or Without Heart Failure. J Am Coll Cardiol 2020; 75:1128-1141. [PMID: 32164886 DOI: 10.1016/j.jacc.2019.12.063] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 12/11/2019] [Accepted: 12/17/2019] [Indexed: 01/05/2023]
Abstract
BACKGROUND More data regarding effects of glucagon-like peptide-1 receptor agonists in patients with type 2 diabetes (T2D) and heart failure (HF) are required. OBJECTIVES The purpose of this study was to investigate the effects of liraglutide on cardiovascular events and mortality in LEADER (Liraglutide Effect and Action in Diabetes: Evaluation of Cardiovascular Outcome Results) participants, by HF history. METHODS In the multinational, double-blind, randomized LEADER trial, 9,340 patients with T2D and high cardiovascular risk were assigned 1:1 to liraglutide (1.8 mg daily or maximum tolerated dose up to 1.8 mg daily) or placebo plus standard care, and followed for 3.5 to 5 years. New York Heart Association (NYHA) functional class IV HF was an exclusion criterion. The primary composite major adverse cardiovascular events outcome was time to first occurrence of cardiovascular death, nonfatal myocardial infarction, or nonfatal stroke. Post hoc Cox regression analyses of outcomes by baseline HF history were conducted. RESULTS At baseline, 18% of patients had a history of NYHA functional class I to III HF (liraglutide: n = 835 of 4,668; placebo: n = 832 of 4,672). Effects of liraglutide versus placebo on major adverse cardiovascular events were consistent in patients with (hazard ratio [HR]: 0.81 [95% confidence interval (CI): 0.65 to 1.02]) and without (HR: 0.88 [95% CI: 0.78 to 1.00]) a history of HF (p interaction = 0.53). In both subgroups, fewer deaths were observed with liraglutide (HR: 0.89 [95% CI: 0.70 to 1.14] with HF; HR: 0.83 [95% CI: 0.70 to 0.97] without HF; p interaction = 0.63) versus placebo. No increased risk of HF hospitalization was observed with liraglutide, regardless of HF history (HR: 0.98 [95% CI: 0.75 to 1.28] with HF; HR: 0.78 [95% CI: 0.61 to 1.00] without HF; p interaction = 0.22). Effects of liraglutide on the composite of HF hospitalization or cardiovascular death were consistent in patients with (HR: 0.92 [95% CI: 0.74 to 1.15]) and without (HR: 0.77 [95% CI: 0.65 to 0.91]) a history of HF (p interaction = 0.19). CONCLUSIONS Based on these findings, liraglutide should be considered suitable for patients with T2D with or without a history of NYHA functional class I to III HF. (Liraglutide Effect and Action in Diabetes: Evaluation of Cardiovascular Outcome Results [LEADER]; NCT01179048).
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Buse JB, Bode BW, Mertens A, Cho YM, Christiansen E, Hertz CL, Nielsen MA, Pieber TR. Long-term efficacy and safety of oral semaglutide and the effect of switching from sitagliptin to oral semaglutide in patients with type 2 diabetes: a 52-week, randomized, open-label extension of the PIONEER 7 trial. BMJ Open Diabetes Res Care 2020; 8:8/2/e001649. [PMID: 33318068 PMCID: PMC7737050 DOI: 10.1136/bmjdrc-2020-001649] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/21/2020] [Accepted: 11/02/2020] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION The PIONEER 7 trial demonstrated superior glycemic control and weight loss with once-daily oral semaglutide with flexible dose adjustment versus sitagliptin 100 mg in type 2 diabetes. This 52-week extension evaluated long-term oral semaglutide treatment and switching from sitagliptin to oral semaglutide. RESEARCH DESIGN AND METHODS A 52-week, open-label extension commenced after the 52-week main phase. Patients on oral semaglutide in the main phase continued treatment (n=184; durability part); those on sitagliptin were rerandomized to continued sitagliptin (n=98) or oral semaglutide (n=100; initiated at 3 mg) (switch part). Oral semaglutide was dose-adjusted (3, 7, or 14 mg) every 8 weeks based on glycated hemoglobin (HbA1c) (target <7.0% (<53 mmol/mol)) and tolerability. Secondary endpoints (no primary) included changes in HbA1c and body weight. RESULTS In the durability part, mean (SD) changes in HbA1c and body weight from week 0 were -1.5% (0.8) and -1.3% (1.0) and -2.8 kg (3.8) and -3.7 kg (5.2) at weeks 52 and 104, respectively. In the switch part, mean changes in HbA1c from week 52 to week 104 were -0.2% for oral semaglutide and 0.1% for sitagliptin (difference -0.3% (95% CI -0.6 to 0.0); p=0.0791 (superiority not confirmed)). More patients achieved HbA1c <7.0% with oral semaglutide (52.6%) than sitagliptin (28.6%; p=0.0011) and fewer received rescue medication (9% vs 23.5%). Respective mean changes in body weight were -2.4 kg and -0.9 kg (difference -1.5 kg (95% CI -2.8 to -0.1); p=0.0321). Gastrointestinal adverse events were the most commonly reported with oral semaglutide. CONCLUSIONS Long-term oral semaglutide with flexible dose adjustment maintained HbA1c reductions, with additional body weight reductions, and was well tolerated. Switching from sitagliptin to flexibly dosed oral semaglutide maintained HbA1c reductions, helped more patients achieve HbA1c targets with less use of additional glucose-lowering medication, and offers the potential for additional reductions in body weight. TRIAL REGISTRATION NUMBER NCT02849080.
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Heller S, Lingvay I, Marso SP, Philis‐Tsimikas A, Pieber TR, Poulter NR, Pratley RE, Hachmann‐Nielsen E, Kvist K, Lange M, Moses AC, Andresen MT, Buse JB. Risk of severe hypoglycaemia and its impact in type 2 diabetes in DEVOTE. Diabetes Obes Metab 2020; 22:2241-2247. [PMID: 32250536 PMCID: PMC7754351 DOI: 10.1111/dom.14049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 03/30/2020] [Indexed: 01/10/2023]
Abstract
AIMS To undertake a post-hoc analysis, utilizing a hypoglycaemia risk score based on DEVOTE trial data, to investigate if a high risk of severe hypoglycaemia was associated with an increased risk of cardiovascular events, and whether reduced rates of severe hypoglycaemia in patients identified as having the highest risk affected the risk of cardiovascular outcomes. MATERIALS AND METHODS The DEVOTE population was divided into quartiles according to patients' individual hypoglycaemia risk scores. For each quartile, the observed incidence and rate of severe hypoglycaemia, major adverse cardiovascular event (MACE) and all-cause mortality were determined to investigate whether those with the highest risk of hypoglycaemia were also at the greatest risk of MACE and all-cause mortality. In addition, treatment differences within each risk quartile [insulin degludec (degludec) vs. insulin glargine 100 units/mL (glargine U100)] in terms of severe hypoglycaemia, MACE and all-cause mortality were investigated. RESULTS Patients with the highest risk scores had the highest rates of severe hypoglycaemia, MACE and all-cause mortality. Treatment ratios between degludec and glargine U100 in the highest risk quartile were 95% confidence interval (CI) 0.56 (0.39; 0.80) (severe hypoglycaemia), 95% CI 0.76 (0.58; 0.99) (MACE) and 95% CI 0.77 (0.55; 1.07) (all-cause mortality). CONCLUSIONS The risk score demonstrated that a high risk of severe hypoglycaemia was associated with a high incidence of MACE and all-cause mortality and that, in this high-risk group, those treated with degludec had a lower incidence of MACE. These observations support the hypothesis that hypoglycaemia is a risk factor for cardiovascular events.
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Verma S, McGuire DK, Bain SC, Bhatt DL, Leiter LA, Mazer CD, Monk Fries T, Pratley RE, Rasmussen S, Vrazic H, Zinman B, Buse JB. Effects of glucagon-like peptide-1 receptor agonists liraglutide and semaglutide on cardiovascular and renal outcomes across body mass index categories in type 2 diabetes: Results of the LEADER and SUSTAIN 6 trials. Diabetes Obes Metab 2020; 22:2487-2492. [PMID: 32744418 PMCID: PMC7754406 DOI: 10.1111/dom.14160] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/24/2020] [Accepted: 07/29/2020] [Indexed: 12/11/2022]
Abstract
Associations between body mass index (BMI) and the cardiovascular (CV) and kidney efficacy of glucagon-like peptide-1 receptor agonists (GLP-1 RAs) in patients with type 2 diabetes (T2D) are uncertain; therefore, data analysed separately from the Liraglutide Effect and Action in Diabetes: Evaluation of Cardiovascular Outcome Results (LEADER) trial and the Trial to Evaluate Cardiovascular and Other Long-term Outcomes with Semaglutide in Subjects with Type 2 Diabetes (SUSTAIN 6) were examined. These international, randomized, placebo-controlled trials investigated liraglutide and semaglutide (both subcutaneous) in patients with T2D and at high risk of CV events. In post hoc analyses, patients were categorized by baseline BMI (<25, ≥25-<30, ≥30-<35 and ≥35 kg/m2 ), and CV and kidney outcomes with GLP-1 RA versus placebo were analysed. All baseline BMI data from LEADER (n = 9331) and SUSTAIN 6 (n = 3290) were included (91% and 92% of patients with overweight or obesity, respectively). In SUSTAIN 6, nominally significant heterogeneity of semaglutide efficacy by baseline BMI was observed for CV death/myocardial infarction/stroke (major adverse CV events, primary outcome of both; Pinteraction = .02); otherwise, there was no statistical heterogeneity for either GLP-1 RA versus placebo across BMI categories for key CV and kidney outcomes. The lack of statistical heterogeneity from these cardiorenal outcomes implies that liraglutide and semaglutide may be beneficial for many patients and is probable not to depend on their baseline BMI, but further study is needed.
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Klein KR, Buse JB. The trials and tribulations of determining HbA 1c targets for diabetes mellitus. Nat Rev Endocrinol 2020; 16:717-730. [PMID: 33082551 DOI: 10.1038/s41574-020-00425-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/16/2020] [Indexed: 12/19/2022]
Abstract
Glycated haemoglobin (HbA1c) is considered the gold standard for predicting glycaemia-associated risks for the microvascular and macrovascular complications of diabetes mellitus over 5-10 years. The value of HbA1c in the care of patients with type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM) is unassailable, yet HbA1c targets remain contentious. Guidelines from diabetes care organizations recommend conflicting HbA1c targets - generally between 6.5% and 8%. However, all such organizations advocate for individualization of HbA1c targets, leaving both health-care providers and their patients confused about what HbA1c target is appropriate in an individual patient. In this Review, we outline the landmark T1DM and T2DM trials that informed the current guidelines, we discuss the evidence that drives individualized HbA1c targets, we examine the limitations of HbA1c, and we consider alternatives for monitoring glycaemic control. Ultimately, in synthesizing this literature, we argue for an HbA1c target of <7% for most individuals, but emphasize the importance of helping patients determine their own personal goals and determinants of quality of life that are independent of a particular glycaemic target. We also recognize that as newer technologies and anti-hyperglycaemic therapies emerge, glycaemic targets will continue to evolve.
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Heller S, Lingvay I, Marso SP, Philis‐Tsimikas A, Pieber TR, Poulter NR, Pratley RE, Hachmann‐Nielsen E, Kvist K, Lange M, Moses AC, Trock Andresen M, Buse JB. Development of a hypoglycaemia risk score to identify high-risk individuals with advanced type 2 diabetes in DEVOTE. Diabetes Obes Metab 2020; 22:2248-2256. [PMID: 32996693 PMCID: PMC7756403 DOI: 10.1111/dom.14208] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 09/21/2020] [Accepted: 09/25/2020] [Indexed: 12/21/2022]
Abstract
AIMS The ability to differentiate patient populations with type 2 diabetes at high risk of severe hypoglycaemia could impact clinical decision making. The aim of this study was to develop a risk score, using patient characteristics, that could differentiate between populations with higher and lower 2-year risk of severe hypoglycaemia among individuals at increased risk of cardiovascular disease. MATERIALS AND METHODS Two models were developed for the risk score based on data from the DEVOTE cardiovascular outcomes trials. The first, a data-driven machine-learning model, used stepwise regression with bidirectional elimination to identify risk factors for severe hypoglycaemia. The second, a risk score based on known clinical risk factors accessible in clinical practice identified from the data-driven model, included: insulin treatment regimen; diabetes duration; sex; age; and glycated haemoglobin, all at baseline. Both the data-driven model and simple risk score were evaluated for discrimination, calibration and generalizability using data from DEVOTE, and were validated against the external LEADER cardiovascular outcomes trial dataset. RESULTS Both the data-driven model and the simple risk score discriminated between patients at higher and lower hypoglycaemia risk, and performed similarly well based on the time-dependent area under the curve index (0.63 and 0.66, respectively) over a 2-year time horizon. CONCLUSIONS Both the data-driven model and the simple hypoglycaemia risk score were able to discriminate between patients at higher and lower risk of severe hypoglycaemia, the latter doing so using easily accessible clinical data. The implementation of such a tool (http://www.hyporiskscore.com/) may facilitate improved recognition of, and education about, severe hypoglycaemia risk, potentially improving patient care.
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Wang Z, Wang J, Li H, Yu J, Chen G, Kahkoska AR, Wu V, Zeng Y, Wen D, Miedema JR, Buse JB, Gu Z. Dual self-regulated delivery of insulin and glucagon by a hybrid patch. Proc Natl Acad Sci U S A 2020; 117:29512-29517. [PMID: 33177238 PMCID: PMC7703584 DOI: 10.1073/pnas.2011099117] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Reduced β-cell function and insulin deficiency are hallmarks of diabetes mellitus, which is often accompanied by the malfunction of glucagon-secreting α-cells. While insulin therapy has been developed to treat insulin deficiency, the on-demand supplementation of glucagon for acute hypoglycemia treatment remains inadequate. Here, we describe a transdermal patch that mimics the inherent counterregulatory effects of β-cells and α-cells for blood glucose management by dynamically releasing insulin or glucagon. The two modules share a copolymerized matrix but comprise different ratios of the key monomers to be "dually responsive" to both hyper- and hypoglycemic conditions. In a type 1 diabetic mouse model, the hybrid patch effectively controls hyperglycemia while minimizing the occurrence of hypoglycemia in the setting of insulin therapy with simulated delayed meal or insulin overdose.
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Yang JY, Moon AM, Kim H, Pate V, Barritt AS, Crowley MJ, Buse JB, Stürmer T, Alexopoulos AS. Newer second-line glucose-lowering drugs versus thiazolidinediones on cirrhosis risk among older US adult patients with type 2 diabetes. J Diabetes Complications 2020; 34:107706. [PMID: 32843283 PMCID: PMC7657660 DOI: 10.1016/j.jdiacomp.2020.107706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 11/26/2022]
Abstract
AIMS Type 2 diabetes (T2D) accelerates progression of chronic liver disease to cirrhosis, yet the effects of most glucose-lowering drugs (GLDs) on cirrhosis risk in T2D are unknown. To address this gap, we compared cirrhosis risk following initiation of newer second-line GLDs vs. thiazolidinediones (TZDs), which improve histology in non-alcoholic fatty liver disease. MATERIALS AND METHODS Using the US Medicare Fee-for-Service database (2007-2015) and an active comparator, new-user design, we estimated crude incidence rates (IRs) and propensity-score adjusted hazard ratios (aHR) for incident cirrhosis, comparing newer GLDs (dipeptidyl peptidase-4 inhibitors (DPP4i), glucagon-like peptide-1 receptor agonists (GLP1RA), and sodium-glucose co-transporter 2 inhibitors (SGLT2i)) vs. TZDs. RESULTS Among 239,549 total initiators, we observed 318, 151, and < 30 cirrhosis events when comparing DPP4i vs. TZD, GLP1RA vs. TZD, and SGLT2i vs. TZD, respectively. IRs ranged from 1.7 [95% CI, 0.8-3.6] to 3.6 [2.5-5.2] events per 1000 person-years. Point aHR estimates for cirrhosis were elevated among newer GLD initiators vs. TZD (DPP4i: 1.15 [0.89-1.50]; GLP1RA: 1.34 [0.82-2.20]; SGLT2i: 1.16, [0.44-3.08]), although estimates were imprecise due to short durations of drug exposure. CONCLUSIONS We observed mildly elevated cirrhosis risk with newer GLDs vs. TZD; however, uncertainty remains due to imprecise and statistically non-significant effect estimates.
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Verma S, Bain SC, Honoré JB, F. E. Mann J, A. Nauck M, E. Pratley R, Rasmussen S, Sejersten Ripa M, Zinman B, Buse JB. Impact of microvascular disease on cardiovascular outcomes in type 2 diabetes: Results from the LEADER and SUSTAIN 6 clinical trials. Diabetes Obes Metab 2020; 22:2193-2198. [PMID: 32643857 PMCID: PMC7689837 DOI: 10.1111/dom.14140] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/03/2020] [Accepted: 07/05/2020] [Indexed: 12/14/2022]
Abstract
The randomized, double-blind, cardiovascular outcomes trials LEADER (NCT01179048) and SUSTAIN 6 (NCT01720446) showed cardiovascular risk reduction in patients with type 2 diabetes treated with liraglutide and semaglutide, respectively, compared with placebo. This post hoc analysis examined the impact of microvascular disease at baseline on cardiovascular outcomes in these trials, and the efficacy of liraglutide (1.8 mg) and once-weekly semaglutide (0.5-1.0 mg) in patients with and without microvascular disease. In total, 9340 patients from LEADER and 3297 patients from SUSTAIN 6 were included in this analysis; of these, 5761 and 2356 had a history of microvascular disease at baseline and 3835 and 1640 had a history of both microvascular and macrovascular disease, respectively. Patients with microvascular disease were shown to have an increased risk of major adverse cardiovascular events compared with patients without microvascular disease (hazard ratio [95% confidence interval] in LEADER: 1.15 [1.03; 1.29], P = .0136; SUSTAIN 6: 1.56 [1.14; 2.17], P = .0064). Liraglutide and semaglutide consistently reduced cardiovascular risk in patients with and without microvascular disease.
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Amod A, Buse JB, McGuire DK, Pieber TR, Pop-Busui R, Pratley RE, Zinman B, Hansen MB, Jia T, Mark T, Poulter NR. Risk factors for kidney disorders in patients with type 2 diabetes at high cardiovascular risk: An exploratory analysis (DEVOTE 12). Diab Vasc Dis Res 2020; 17:1479164120970933. [PMID: 33280425 PMCID: PMC7919227 DOI: 10.1177/1479164120970933] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
AIM To investigate risk factors associated with kidney disorders in patients with type 2 diabetes (T2D) at high cardiovascular (CV) risk. METHODS In DEVOTE, a cardiovascular outcomes trial, 7637 patients were randomised to insulin degludec (degludec) or insulin glargine 100 units/mL (glargine U100), with standard of care. In these exploratory post hoc analyses, serious adverse event reports were searched using Standardised MedDRA® Queries related to chronic kidney disease (CKD) or acute kidney injury (AKI). Baseline predictors of CKD, AKI and change in estimated glomerular filtration rate (eGFR) were identified using stepwise selection and Cox or linear regression. RESULTS Over 2 years, eGFR (mL/min/1.73 m2) decline was small and similar between treatments (degludec: 2.70; glargine U100: 2.92). Overall, 97 and 208 patients experienced CKD and AKI events, respectively. A history of heart failure was a risk factor for CKD (hazard ratio [HR] 1.97 [95% confidence interval [CI] 1.41; 2.75]) and AKI (HR 2.28 [95% CI 1.64; 3.17]). A history of hepatic impairment was a significant predictor of CKD (HR 3.28 [95% CI 2.12; 5.07]) and change in eGFR (estimate: -8.59 [95% CI -10.20; -7.00]). CONCLUSION Our findings indicate that traditional, non-modifiable risk factors for kidney disorders apply to insulin-treated patients with T2D at high CV risk. TRIAL REGISTRATION NCT01959529 (ClinicalTrials.gov).
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McGill JB, Peters A, Buse JB, Steiner S, Tran T, Pompilio FM, Kendall DM. Comprehensive Pulmonary Safety Review of Inhaled Technosphere ® Insulin in Patients with Diabetes Mellitus. Clin Drug Investig 2020; 40:973-983. [PMID: 32720187 PMCID: PMC7511468 DOI: 10.1007/s40261-020-00958-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVE Technosphere® Insulin (TI), a human insulin powder for inhalation (Afrezza®; MannKind Corporation, Westlake Village, CA, USA), is an ultra-rapid-acting inhaled insulin indicated to improve postprandial glycemic control in patients with type 1 or type 2 diabetes mellitus (T1DM or T2DM). Because TI is absorbed across the alveolar membrane, the objective of this analysis was to characterize its pulmonary safety. METHODS Pooled data from 13 phase 2/3 clinical studies in 5505 patients with T1DM or T2DM treated with TI, Technosphere inhalation powder without insulin (TP; placebo), or active-comparator treatment were analyzed for incidences of respiratory treatment-emergent adverse events (TEAEs), changes in pulmonary function, and lung malignancies. Radiographic changes in the lungs were monitored in a subset of 229 patients. RESULTS Among 3017 patients receiving TI, the median duration of TI exposure was 168 days; median active-comparator and TP exposure durations were 363 and 149 days for 2198 and 290 patients, respectively. Respiratory TEAEs were comparable across treatments, except for a higher incidence of mild cough with TI in active-comparator studies (28.0% vs. 5.2%). Slight reversible declines in pulmonary function from baseline were observed for TI versus TP and active-comparator treatments, including in a subpopulation of patients with retrospectively identified lung dysfunction. Lung malignancies were reported in two patients on active TI therapy with a smoking history. No clinically significant changes from baseline were observed in radiographic images. CONCLUSIONS Pulmonary safety assessment of the TI inhalation system did not identify any safety issues in individuals with either T1DM or T2DM.
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Hale PM, Ali AK, Buse JB, McCullen MK, Ross DS, Sabol ME, Tuttle RM, Stemhagen A. Medullary Thyroid Carcinoma Surveillance Study: A Case-Series Registry. Thyroid 2020; 30:1397-1398. [PMID: 32316860 PMCID: PMC7583321 DOI: 10.1089/thy.2019.0591] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Khunti K, Davies MJ, Marx N, Buse JB. Draft FDA guidance for assessing the safety of glucose lowering therapies: a missed opportunity? Lancet Diabetes Endocrinol 2020; 8:810-811. [PMID: 32946819 DOI: 10.1016/s2213-8587(20)30302-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 08/14/2020] [Indexed: 11/27/2022]
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Kahkoska AR, Geybels MS, Klein KR, Kreiner FF, Marx N, Nauck MA, Pratley RE, Wolthers BO, Buse JB. Validation of distinct type 2 diabetes clusters and their association with diabetes complications in the DEVOTE, LEADER and SUSTAIN-6 cardiovascular outcomes trials. Diabetes Obes Metab 2020; 22:1537-1547. [PMID: 32314525 PMCID: PMC7423751 DOI: 10.1111/dom.14063] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/01/2020] [Accepted: 04/12/2020] [Indexed: 02/06/2023]
Abstract
AIMS To validate the clusters of Swedish individuals with recent-onset diabetes at differential risk of complications, which were identified in a previous study, in three global populations with long-standing type 2 diabetes (T2D) who were at high cardiovascular risk, and to test for differences in the risk of major diabetes complications and survival endpoints. MATERIALS AND METHODS We assigned participants from recent global outcomes trials (DEVOTE [n = 7637], LEADER [n = 9340] and SUSTAIN-6 [n = 3297]) to the previously defined clusters according to age at diabetes diagnosis, baseline glycated haemoglobin (HbA1c) and body mass index (BMI). Outcomes were assessed using Kaplan-Meier analysis and log-rank tests. RESULTS The T2D clusters were consistently replicated across the three trial cohorts. The risk of major adverse cardiovascular events and cardiovascular death differed significantly, in all trials, across clusters over a median follow-up duration of 2.0, 3.8 and 2.1 years, respectively, and was highest for the cluster of participants with high HbA1c and low BMI (P < 0.05 in DEVOTE and LEADER). In LEADER and SUSTAIN-6, the risk of nephropathy differed across clusters (P < 0.0001 and P = 0.003, respectively). The risk of severe hypoglycaemia differed in DEVOTE (P = 0.006). CONCLUSIONS Previously identified clusters can be replicated in three geographically diverse cohorts of long-standing T2D and are associated with cluster-specific risk profiles for additional clinical and survival outcomes, providing further validation of the clustering methodology. The external validity and stability of clusters across cohorts provides a premise for future work to optimize the clustering approach to yield T2D subgroups with maximum predictive validity who may benefit from subtype-specific treatment paradigms.
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Leiter LA, Bain SC, Bhatt DL, Buse JB, Mazer CD, Pratley RE, Rasmussen S, Ripa MS, Vrazic H, Verma S. The effect of glucagon-like peptide-1 receptor agonists liraglutide and semaglutide on cardiovascular and renal outcomes across baseline blood pressure categories: Analysis of the LEADER and SUSTAIN 6 trials. Diabetes Obes Metab 2020; 22:1690-1695. [PMID: 32372454 PMCID: PMC7496251 DOI: 10.1111/dom.14079] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/29/2020] [Accepted: 05/01/2020] [Indexed: 12/12/2022]
Abstract
It is unknown if the cardioprotective and renal effects of glucagon-like peptide-1 receptor agonists are consistent across blood pressure (BP) categories in patients with type 2 diabetes and at high risk of cardiovascular events. Using data from the LEADER (9340 patients) and SUSTAIN 6 (3297 patients) trials, we evaluated post hoc the cardiorenal effect of liraglutide and semaglutide on major adverse cardiovascular events (MACE) and nephropathy by baseline BP categories using a Cox proportional hazards model (treatment and subgroup as factors; adjusted for cardiorenal risk factors). Data from the two trials were analysed separately. In the LEADER and SUSTAIN 6 trials, the prevalence of stage 1 hypertension was 30% and 31%, respectively, and of stage 2 hypertension 41% and 43%, respectively. There was no statistical heterogeneity across the BP categories for the effects of liraglutide (P = .06 for MACE; P = .14 for nephropathy) or semaglutide (P = .40 for MACE; P = .27 for nephropathy) versus placebo. This implies that liraglutide and semaglutide may be beneficial for patients with type 2 diabetes, irrespective of their baseline BP.
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Gokhale M, Dusetzina SB, Pate V, Chun DS, Buse JB, Stürmer T, Gower EW. Decreased Antihyperglycemic Drug Use Driven by High Out-of-Pocket Costs Despite Medicare Coverage Gap Closure. Diabetes Care 2020; 43:2121-2127. [PMID: 32641378 PMCID: PMC7440898 DOI: 10.2337/dc19-1880] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 06/02/2020] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Using the 2016 Medicare Part D coverage gap as an example, we explored effects of increased out-of-pocket costs on adherence to branded dipeptidyl peptidase 4 inhibitors (DPP-4i) in patients without financial subsidies relative to subsidized patients who do not experience increased spending during the gap. We also explored seasonality of reinitiation, because discontinuers may be more likely to reinitiate in January when benefits reset. RESEARCH DESIGN AND METHODS We identified DPP-4i or sulfonylurea initiators, aged ≥66 years, from a 20% sample of 2015-2016 Medicare claims. Difference-in-differences Poisson regression was used to compare adherence before and after entering the coverage gap between nonsubsidized and subsidized patients. Among discontinuers, monthly hazard ratios (HRs) for reinitiation relative to January 2016 were derived with Cox models. As a second control, we repeated analyses using sulfonylureas, generic low-cost alternatives. RESULTS In 2016, 8,096 subsidized and 6,173 nonsubsidized DPP-4i initiators entered the coverage gap. For nonsubsidized patients, copayment in the coverage gap was 45% ($227 per DPP-4i prescription), and adherence decreased from 68.4% to 49.0% after gap entry. Accounting for adherence differences in subsidized patients, nonsubsidized patients demonstrated reduced adherence to DPP-4i (difference-in-difference: -16.9%; 95% CI -18.7%, -15.1%) but not sulfonylureas (-1.6%; 95% CI -3.4%, 0.2%). Reinitiation was lowest in the months before January (HR 0.4-0.5) among nonsubsidized DPP-4i patients, demonstrating a strong seasonal pattern. CONCLUSIONS Increased out-of-pocket costs negatively affect adherence and reinitiation of branded antihyperglycemic drugs among patients without financial subsidies. Despite closure of the coverage gap, affordability remains a concern given increasing list prices for many drugs on Medicare and the growing use of deductibles and coinsurance by commercial health plans.
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Gokhale M, Stürmer T, Buse JB. Real-world evidence: the devil is in the detail. Diabetologia 2020; 63:1694-1705. [PMID: 32666226 PMCID: PMC7448554 DOI: 10.1007/s00125-020-05217-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/01/2020] [Indexed: 12/12/2022]
Abstract
Much has been written about real-world evidence (RWE), a concept that offers an understanding of the effects of healthcare interventions using routine clinical data. The reflection of diverse real-world practices is a double-edged sword that makes RWE attractive but also opens doors to several biases that need to be minimised both in the design and analytical phases of non-experimental studies. Additionally, it is critical to ensure that researchers who conduct these studies possess adequate methodological expertise and ability to accurately implement these methods. Critical design elements to be considered should include a clearly defined research question using a causal inference framework, choice of a fit-for-purpose data source, inclusion of new users of a treatment with comparators that are as similar as possible to that group, accurately classifying person-time and deciding censoring approaches. Having taken measures to minimise bias 'by design', the next step is to implement appropriate analytical techniques (for example propensity scores) to minimise the remnant potential biases. A clear protocol should be provided at the beginning of the study and a report of the results after, including caveats to consider. We also point the readers to readings on some novel analytical methods as well as newer areas of application of RWE. While there is no one-size-fits-all solution to evaluating RWE studies, we have focused our discussion on key methods and issues commonly encountered in comparative observational cohort studies with the hope that readers are better equipped to evaluate non-experimental studies that they encounter in the future. Graphical abstract.
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Crowley MJ, McGuire DK, Alexopoulos AS, Jensen TJ, Rasmussen S, Saevereid HA, Verma S, Buse JB. Effects of Liraglutide on Cardiovascular Outcomes in Type 2 Diabetes Patients With and Without Baseline Metformin Use: Post Hoc Analyses of the LEADER Trial. Diabetes Care 2020; 43:e108-e110. [PMID: 32647053 PMCID: PMC7440910 DOI: 10.2337/dc20-0437] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/13/2020] [Indexed: 02/03/2023]
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Buse JB, Wexler DJ, Tsapas A, Rossing P, Mingrone G, Mathieu C, D'Alessio DA, Davies MJ. Correction to: 2019 update to: Management of hyperglycaemia in type 2 diabetes, 2018. A consensus report by the American Diabetes Association (ADA) and the European Association for the Study of diabetes (EASD). Diabetologia 2020; 63:1667. [PMID: 32409867 DOI: 10.1007/s00125-020-05151-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The incorrect figure legend was printed for Fig. 2.
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Hartmann-Boyce J, Morris E, Goyder C, Kinton J, Perring J, Nunan D, Mahtani K, Buse JB, Del Prato S, Ji L, Roussel R, Khunti K. Diabetes and COVID-19: Risks, Management, and Learnings From Other National Disasters. Diabetes Care 2020; 43:1695-1703. [PMID: 32546593 DOI: 10.2337/dc20-1192] [Citation(s) in RCA: 111] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 05/19/2020] [Indexed: 02/03/2023]
Abstract
Evidence relating to the impact of COVID-19 in people with diabetes (PWD) is limited but continuing to emerge. PWD appear to be at increased risk of more severe COVID-19 infection, though evidence quantifying the risk is highly uncertain. The extent to which clinical and demographic factors moderate this relationship is unclear, though signals are emerging that link higher BMI and higher HbA1c to worse outcomes in PWD with COVID-19. As well as posing direct immediate risks to PWD, COVID-19 also risks contributing to worse diabetes outcomes due to disruptions caused by the pandemic, including stress and changes to routine care, diet, and physical activity. Countries have used various strategies to support PWD during this pandemic. There is a high potential for COVID-19 to exacerbate existing health disparities, and research and practice guidelines need to take this into account. Evidence on the management of long-term conditions during national emergencies suggests various ways to mitigate the risks presented by these events.
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McAlister FA, Zheng Y, Westerhout CM, Buse JB, Standl E, McGuire DK, Van de Werf F, Green JB, Armstrong PW, Holman RR. Association between glycated haemoglobin levels and cardiovascular outcomes in patients with type 2 diabetes and cardiovascular disease: a secondary analysis of the TECOS randomized clinical trial. Eur J Heart Fail 2020; 22:2026-2034. [PMID: 32621557 DOI: 10.1002/ejhf.1958] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 01/02/2023] Open
Abstract
AIMS Whether glycaemic control is associated with cardiovascular outcomes in patients with type 2 diabetes (T2D) is unclear. Consequently, we assessed the relationship between glycated haemoglobin (HbA1c ) and cardiovascular outcomes in a placebo-controlled randomized trial which demonstrated no cardiovascular effect of sitagliptin in patients with T2D and atherosclerotic vascular disease. METHODS AND RESULTS Secondary analysis of 14 656 TECOS participants with time to event analyses using multivariable Cox proportional hazard models. During a median 3.0 (interquartile range 2.3-3.8) year follow-up, 456 (3.1% of 14 656) patients had first hospitalization for heart failure (HF), 1084 (11.5%) died, 1406 (9.6%) died or were hospitalized for HF, and 1689 (11.5%) had a non-HF cardiovascular event (cardiovascular death, non-fatal stroke, non-fatal myocardial infarction, or hospitalization for unstable angina). Associations between baseline or time-varying HbA1c and cardiovascular outcomes were U-shaped, with the lowest risk when HbA1c was around 7%. Each one-unit increase in the time-varying HbA1c above 7% was associated with an adjusted hazard ratio (HR) of 1.21 [95% confidence interval (CI) 1.11-1.33] for first HF hospitalization, 1.11 (1.03-1.21) for all-cause death, 1.18 (1.09-1.26) for death or HF hospitalization, and 1.10 (1.02-1.17) for non-HF cardiovascular events. Each one-unit decrease in the time-varying HbA1c below 7% was associated with an adjusted HR of 1.35 (95% CI 1.12-1.64) for first HF hospitalization, 1.37 (1.16-1.61) for death, 1.42 (1.23-1.64) for death or HF hospitalization, and 1.22 (1.06-1.41) for non-HF cardiovascular events. CONCLUSION Glycated haemogobin exhibits a U-shaped association with cardiovascular outcomes in patients with T2D and atherosclerotic vascular disease, with nadir around 7%. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT00790205.
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Verma S, Bain SC, Buse JB, Idorn T, Rasmussen S, Ørsted DD, Nauck MA. Occurence of First and Recurrent Major Adverse Cardiovascular Events With Liraglutide Treatment Among Patients With Type 2 Diabetes and High Risk of Cardiovascular Events: A Post Hoc Analysis of a Randomized Clinical Trial. JAMA Cardiol 2020; 4:1214-1220. [PMID: 31721979 DOI: 10.1001/jamacardio.2019.3080] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Importance After the occurrence of nonfatal cardiovascular events, recurrent events are highly likely. Most cardiovascular outcomes trials analyze first events only; extending analyses to first and recurrent (total) events can provide clinically meaningful information. Objective To investigate whether liraglutide is associated with reduced first and recurrent total major adverse cardiovascular events (MACE) compared with placebo among patients with type 2 diabetes and high risk of cardiovascular events. Design, Setting, and Participants This post hoc analysis of the Liraglutide Effect and Action in Diabetes: Evaluation of Cardiovascular Outcome Results (LEADER) randomized, double-blind, clinical trial included data from patients with type 2 diabetes who had established or were at high risk for cardiovascular disease at 410 sites in 32 countries from August 2010, to December 2015. Data analysis was performed from August 15, 2016, to July 5, 2019. Interventions Patients were randomized 1:1 to receive liraglutide (up to 1.8 mg per day) or placebo, both with standard care, for 3.5 to 5.0 years. Main Outcomes and Measures Assessed outcomes were MACE (cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke), expanded MACE (primary MACE plus coronary revascularization and hospitalization for heart failure or unstable angina pectoris), and the individual end points. Results The 9340 LEADER trial participants (6003 [64.3%] male; mean [SD] age, 64.3 [7.2] years) experienced 1605 total MACE (1302 first and 303 recurrent events; median follow-up, 3.8 years [range, 0-5.2 years]). Patients who experienced any MACE were older (1 MACE: mean [SD] age, 65.6 [8.0] years; >1 MACE: 65.7 [7.9] years) and had diabetes for longer duration (1 MACE: mean [SD] duration, 13.4 [8.3] years; >1 MACE: 14.4 [8.7] years) compared with patients without MACE (mean [SD] age, 64.1 [7.1] years; mean [SD] duration, 12.7 [7.9] years). Fewer first and recurrent MACE occurred in the liraglutide group (n = 4668; 608 first and 127 recurrent events) than in the placebo group (n = 4672; 694 first and 176 recurrent events). Liraglutide was associated with a 15.7% relative risk reduction in total MACE (hazard ratio [HR], 0.84; 95% CI, 0.76-0.93) and a 13.4% reduction in total expanded MACE (HR, 0.87; 95% CI, 0.81-0.93) compared with placebo. For most individual cardiovascular end points, liraglutide was associated with lower risk vs placebo. Conclusions and Relevance These results suggest that liraglutide treatment is associated with reduced total MACE compared with placebo among patients with type 2 diabetes and high risk of cardiovascular events. This analysis supports the findings of an absolute benefit of liraglutide treatment with respect to the overall burden of cardiovascular events in this high-risk patient population. Trial Registration ClinicalTrials.gov identifier: NCT01179048.
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