Liraglutide in the treatment of type 2 diabetes mellitus: clinical utility and patient perspectives

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Liraglutide in the treatment of type 2 diabetes mellitus: clinical utility and patient perspectives

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Author(s): Mahamood Edavalath ¹ , Jeffrey W Stephens ¹ ^, ²

Publication date (Electronic): 24 March 2010

Journal: Patient preference and adherence

Publisher: Dove Medical Press

Keywords: liraglutide, type 2 diabetes mellitus, glycemic control, GLP-1 analogue, obesity

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Abstract

Type 2 diabetes mellitus (T2DM) is a progressive disease associated with significant morbidity and mortality. There is good evidence that intensive glycemic control reduces the development and progression of complications in patients with diabetes. In order to achieve glycemic targets, patients often require a combination of oral therapy and/or insulin in addition to lifestyle modification. Unfortunately many currently available therapies for T2DM are associated with weight gain and hypoglycemia resulting in poor compliance and subsequent worsening glycemic control. Glucagon like peptide-1 (GLP-1) is an incretin hormone secreted from the small intestine that lowers fasting and postprandial glucose through multiple mechanisms including glucose-dependent insulin secretion, reduction of glucagon secretion, delaying gastric emptying and increased satiety. Liraglutide is a long acting GLP-1 mimetic that is administered once a day by subcutaneous injection and is now licensed for the treatment of T2DM. Phase 3 clinical trials have demonstrated beneficial effects on glycemic control and weight with liraglutide therapy. Within this article, we provide an overview of pharmacology, efficacy, safety and patient experience on liraglutide in the management of T2DM.

Most cited references 44

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The Effect of Intensive Treatment of Diabetes on the Development and Progression of Long-Term Complications in Insulin-Dependent Diabetes Mellitus

S Genuth, C. Siebert, D. M. Nathan … (1993)

Long-term microvascular and neurologic complications cause major morbidity and mortality in patients with insulin-dependent diabetes mellitus (IDDM). We examined whether intensive treatment with the goal of maintaining blood glucose concentrations close to the normal range could decrease the frequency and severity of these complications. A total of 1441 patients with IDDM--726 with no retinopathy at base line (the primary-prevention cohort) and 715 with mild retinopathy (the secondary-intervention cohort) were randomly assigned to intensive therapy administered either with an external insulin pump or by three or more daily insulin injections and guided by frequent blood glucose monitoring or to conventional therapy with one or two daily insulin injections. The patients were followed for a mean of 6.5 years, and the appearance and progression of retinopathy and other complications were assessed regularly. In the primary-prevention cohort, intensive therapy reduced the adjusted mean risk for the development of retinopathy by 76 percent (95 percent confidence interval, 62 to 85 percent), as compared with conventional therapy. In the secondary-intervention cohort, intensive therapy slowed the progression of retinopathy by 54 percent (95 percent confidence interval, 39 to 66 percent) and reduced the development of proliferative or severe nonproliferative retinopathy by 47 percent (95 percent confidence interval, 14 to 67 percent). In the two cohorts combined, intensive therapy reduced the occurrence of microalbuminuria (urinary albumin excretion of > or = 40 mg per 24 hours) by 39 percent (95 percent confidence interval, 21 to 52 percent), that of albuminuria (urinary albumin excretion of > or = 300 mg per 24 hours) by 54 percent (95 percent confidence interval 19 to 74 percent), and that of clinical neuropathy by 60 percent (95 percent confidence interval, 38 to 74 percent). The chief adverse event associated with intensive therapy was a two-to-threefold increase in severe hypoglycemia. Intensive therapy effectively delays the onset and slows the progression of diabetic retinopathy, nephropathy, and neuropathy in patients with IDDM.

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Glycemic control with diet, sulfonylurea, metformin, or insulin in patients with type 2 diabetes mellitus: progressive requirement for multiple therapies (UKPDS 49). UK Prospective Diabetes Study (UKPDS) Group.

R C Turner, C A Cull, V Frighi … (1999)

Treatment with diet alone, insulin, sulfonylurea, or metformin is known to improve glycemia in patients with type 2 diabetes mellitus, but which treatment most frequently attains target fasting plasma glucose (FPG) concentration of less than 7.8 mmol/L (140 mg/dL) or glycosylated hemoglobin A1c (HbA1c) below 7% is unknown. To assess how often each therapy can achieve the glycemic control target levels set by the American Diabetes Association. Randomized controlled trial conducted between 1977 and 1997. Patients were recruited between 1977 and 1991 and were followed up every 3 months for 3, 6, and 9 years after enrollment. Outpatient diabetes clinics in 15 UK hospitals. A total of 4075 patients newly diagnosed as having type 2 diabetes ranged in age between 25 and 65 years and had a median (interquartile range) FPG concentration of 11.5 (9.0-14.4) mmol/L [207 (162-259) mg/dL], HbA1c levels of 9.1% (7.5%-10.7%), and a mean (SD) body mass index of 29 (6) kg/m2. After 3 months on a low-fat, high-carbohydrate, high-fiber diet, patients were randomized to therapy with diet alone, insulin, sulfonylurea, or metformin. Fasting plasma glucose and HbA1c levels, and the proportion of patients who achieved target levels below 7% HbA1c or less than 7.8 mmol/L (140 mg/dL) FPG at 3, 6, or 9 years following diagnosis. The proportion of patients who maintained target glycemic levels declined markedly over 9 years of follow-up. After 9 years of monotherapy with diet, insulin, or sulfonylurea, 8%, 42%, and 24%, respectively, achieved FPG levels of less than 7.8 mmol/L (140 mg/dL) and 9%, 28%, and 24% achieved HbA1c levels below 7%. In obese patients randomized to metformin, 18% attained FPG levels of less than 7.8 mmol/L (140 mg/dL) and 13% attained HbA1c levels below 7%. Patients less likely to achieve target levels were younger, more obese, or more hyperglycemic than other patients. Each therapeutic agent, as monotherapy, increased 2- to 3-fold the proportion of patients who attained HbA1c below 7% compared with diet alone. However, the progressive deterioration of diabetes control was such that after 3 years approximately 50% of patients could attain this goal with monotherapy, and by 9 years this declined to approximately 25%. The majority of patients need multiple therapies to attain these glycemic target levels in the longer term.

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Efficacy and Safety Comparison of Liraglutide, Glimepiride, and Placebo, All in Combination With Metformin, in Type 2 Diabetes

Michael Nauck, Anders Frid, Kjeld Hermansen … (2009)

OBJECTIVE—The efficacy and safety of adding liraglutide (a glucagon-like peptide-1 receptor agonist) to metformin were compared with addition of placebo or glimepiride to metformin in subjects previously treated with oral antidiabetes (OAD) therapy. RESEARCH DESIGN AND METHODS—In this 26-week, double-blind, double-dummy, placebo- and active-controlled, parallel-group trial, 1,091 subjects were randomly assigned (2:2:2:1:2) to once-daily liraglutide (either 0.6, 1.2, or 1.8 mg/day injected subcutaneously), to placebo, or to glimepiride (4 mg once daily). All treatments were in combination therapy with metformin (1g twice daily). Enrolled subjects (aged 25–79 years) had type 2 diabetes, A1C of 7–11% (previous OAD monotherapy for ≥3 months) or 7–10% (previous OAD combination therapy for ≥3 months), and BMI ≤40 kg/m2. RESULTS—A1C values were significantly reduced in all liraglutide groups versus the placebo group (P < 0.0001) with mean decreases of 1.0% for 1.8 mg liraglutide, 1.2 mg liraglutide, and glimepiride and 0.7% for 0.6 mg liraglutide and an increase of 0.1% for placebo. Body weight decreased in all liraglutide groups (1.8–2.8 kg) compared with an increase in the glimepiride group (1.0 kg; P < 0.0001). The incidence of minor hypoglycemia with liraglutide (∼3%) was comparable to that with placebo but less than that with glimepiride (17%; P < 0.001). Nausea was reported by 11–19% of the liraglutide-treated subjects versus 3–4% in the placebo and glimepiride groups. The incidence of nausea declined over time. CONCLUSIONS—In subjects with type 2 diabetes, once-daily liraglutide induced similar glycemic control, reduced body weight, and lowered the occurrence of hypoglycemia compared with glimepiride, when both had background therapy of metformin.

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Author and article information

Journal

Journal ID (nlm-ta): Patient Prefer Adherence

Title: Patient preference and adherence

Publisher: Dove Medical Press

ISSN (Electronic): 1177-889X

Publication date Collection: 2010

Publication date (Electronic): 24 March 2010

Volume: 4

Pages: 61-68

Affiliations

[1 ]Department of Diabetes and Endocrinology, Morriston Hospital, ABM University NHS Trust, Swansea, UK;

[2 ]Diabetes Research Group, Institute of Life Sciences, Swansea University, Swansea, UK

Author notes

Correspondence: Jeffrey W Stephens, Diabetes Research Group, Institute of Life Sciences, Swansea University, Swansea, SA2 8PP, UK, Tel +44 (0) 1792 704078, Fax +44 (0) 1792 703214, Email j.w.stephens@ 123456swansea.ac.uk

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Publisher ID: ppa-4-061

PMC ID: 2846140

PubMed ID: 20361006

SO-VID: af3b3886-696d-4ddd-8da7-d3f04f5e3f5e

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This is an Open Access article which permits unrestricted noncommercial use, provided the original work is properly cited.

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Liraglutide in the treatment of type 2 diabetes mellitus: clinical utility and patient perspectives

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Abstract

Most cited references 44

The Effect of Intensive Treatment of Diabetes on the Development and Progression of Long-Term Complications in Insulin-Dependent Diabetes Mellitus

Glycemic control with diet, sulfonylurea, metformin, or insulin in patients with type 2 diabetes mellitus: progressive requirement for multiple therapies (UKPDS 49). UK Prospective Diabetes Study (UKPDS) Group.

Efficacy and Safety Comparison of Liraglutide, Glimepiride, and Placebo, All in Combination With Metformin, in Type 2 Diabetes

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