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A randomized, placebo- and sitagliptin-controlled trial of the safety and efficacy of omarigliptin, a once-weekly dipeptidyl peptidase-4 inhibitor, in Japanese patients with type 2 diabetes.

ABSTRACT: AIMS:To assess the safety and efficacy of omarigliptin in Japanese patients with type 2 diabetes (T2D). METHODS:In a 24-week double-blind trial, 414 patients with T2D were randomized to omarigliptin 25?mg once weekly, sitagliptin 50?mg once daily or placebo. The double-blind period was followed by a 28-week open-label extension during which all patients received omarigliptin 25?mg once weekly. Efficacy endpoints were glycated haemoglobin (HbA1c), 2-hour postprandial glucose (PPG) and fasting plasma glucose (FPG) levels. RESULTS:After 24?weeks, the least squares (LS) mean change from baseline in HbA1c was -0.66% for omarigliptin, -0.65% for sitagliptin and 0.13% for placebo. The difference in LS mean for omarigliptin vs placebo was -0.80% ( P ?

SUBMITTER: Gantz I

PROVIDER: S-EPMC5655696 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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A randomized, placebo- and sitagliptin-controlled trial of the safety and efficacy of omarigliptin, a once-weekly dipeptidyl peptidase-4 inhibitor, in Japanese patients with type 2 diabetes.

Gantz Ira I Okamoto Taro T Ito Yuka Y Okuyama Kotoba K O'Neill Edward A EA Kaufman Keith D KD Engel Samuel S SS Lai Eseng E

Diabetes, obesity & metabolism 20170706 11

<h4>Aims</h4>To assess the safety and efficacy of omarigliptin in Japanese patients with type 2 diabetes (T2D).<h4>Methods</h4>In a 24-week double-blind trial, 414 patients with T2D were randomized to omarigliptin 25 mg once weekly, sitagliptin 50 mg once daily or placebo. The double-blind period was followed by a 28-week open-label extension during which all patients received omarigliptin 25 mg once weekly. Efficacy endpoints were glycated haemoglobin (HbA1c), 2-hour postprandial glucose (PPG) ...[more]

PMID: 28449368

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Project description:Omarigliptin is a once-weekly (q.w.) oral DPP-4 inhibitor that is approved for the treatment of patients with type 2 diabetes mellitus (T2DM) in Japan. To support approval of omarigliptin in the United States, the clinical development program included a cardiovascular (CV) safety study. Subsequently, a business decision was made not to submit a marketing application for omarigliptin in the United States, and the CV safety study was terminated. Herein we report an analysis of data from that early-terminated study.In this randomized, double-blind study, 4202 patients with T2DM and established CV disease were assigned to either omarigliptin 25 mg q.w. or matching placebo in addition to their existing diabetes therapy. A Cox proportional hazards model was used to summarize the primary endpoint of time to first major adverse CV event (MACE, the composite of CV death, nonfatal myocardial infarction, and nonfatal stroke) and the analysis of first event of hospitalization for heart failure (hHF).The median follow-up was approximately 96 weeks (range 1.1-178.6 weeks). The primary MACE outcome occurred in 114/2092 patients in the omarigliptin group (5.45%; 2.96/100 patient-years) and 114/2100 patients in the placebo group (5.43%; 2.97/100 patient-years), with a hazard ratio (HR) of 1.00 (95% confidence interval [CI] 0.77, 1.29). The hHF outcome occurred in 20/2092 patients in the omarigliptin group (0.96%; 0.51/100 patient-years) and 33/2100 patients in the placebo group (1.57%; 0.85/100 patient-years), with an HR of 0.60 (95% CI 0.35, 1.05). After 142 weeks, the least-squares mean difference (omarigliptin vs. placebo) in glycated hemoglobin levels was -0.3% (95% CI -0.46, -0.14). The numbers of patients with adverse events, serious adverse events or discontinued from study medication due to adverse events were similar in the omarigliptin and placebo groups.In this CV safety study of patients with T2DM and established CV disease, omarigliptin did not increase the risk of MACE or hHF and was generally well tolerated. Trial registration ClinicalTrials.gov: NCT01703208. Registered 05 October 2012.

Project description:AimsTo assess the safety and efficacy of monotherapy with once-weekly subcutaneous (s.c.) semaglutide vs sitagliptin in Japanese people with type 2 diabetes (T2D).MethodsIn this phase IIIa randomized, open-label, parallel-group, active-controlled, multicentre trial, Japanese adults with T2D treated with diet and exercise only or oral antidiabetic drug monotherapy (washed out during the run-in period) received once-weekly s.c. semaglutide (0.5 or 1.0 mg) or once-daily oral sitagliptin 100 mg. The primary endpoint was number of treatment-emergent adverse events (TEAEs) after 30 weeks.ResultsOverall, 308 participants were randomized and exposed to treatment, with similar baseline characteristics across the groups. In total, 2.9% of participants in both the semaglutide 0.5 mg and the sitagliptin group prematurely discontinued treatment, compared with 14.7% in the semaglutide 1.0 mg group. The majority of discontinuations in the semaglutide 0.5 and 1.0 mg groups were attributable to adverse events (AEs). More TEAEs were reported in semaglutide- vs sitagliptin-treated participants (74.8%, 71.6% and 66.0% in the semaglutide 0.5 mg, semaglutide 1.0 mg and sitagliptin groups, respectively). AEs were mainly mild to moderate. Gastrointestinal AEs, most frequently reported with semaglutide, diminished in frequency over time. The mean glycated haemoglobin (HbA1c [baseline 8.1%]) decreased by 1.9% and 2.2% with semaglutide 0.5 and 1.0 mg, respectively, vs 0.7% with sitagliptin (estimated treatment difference [ETD] vs sitagliptin -1.13%, 95% confidence interval [CI] -1.32; -0.94, and -1.44%, 95% CI -1.63; -1.24; both P < .0001). Body weight (baseline 69.3 kg) was reduced by 2.2 and 3.9 kg with semaglutide 0.5 and 1.0 mg, respectively (ETD -2.22 kg, 95% CI -3.02; -1.42 and -3.88 kg, 95% CI -4.70; -3.07; both P < .0001).ConclusionsIn Japanese people with T2D, more TEAEs were reported with semaglutide than with sitagliptin; however, the semaglutide safety profile was similar to that of other glucagon-like peptide-1 receptor agonists. Semaglutide significantly reduced HbA1c and body weight compared with sitagliptin.

Project description:Type 2 diabetes (T2D) is a progressive disease that often requires a patient to use multiple antihyperglycemic agents to achieve glycemic control with disease progression. Omarigliptin is a once-weekly dipeptidyl peptidase-4 inhibitor. The purpose of this trial was to assess the efficacy and safety of adding omarigliptin to the treatment regimen of patients with T2D inadequately controlled by dual therapy with metformin and glimepiride.Patients with T2D and HbA1c ?7.5% and ?10.5% while on metformin (?1500 mg/day) and glimepiride (?4 mg/day) were randomized to omarigliptin 25 mg once-weekly (N = 154) or placebo (N = 153) for 24 weeks. The primary objective was to assess whether omarigliptin was superior to placebo in reducing HbA1c at Week 24. Secondary objectives were to assess the effects of omarigliptin vs. placebo on FPG and the proportion of subjects attaining HbA1c goals of <7% and <6.5%.From a mean baseline HbA1c of 8.5% (omarigliptin) and 8.6% (placebo), the least squares (LS) mean change from baseline in HbA1c at Week 24 was -0.67% in the omarigliptin group and -0.06% in the placebo group, with a between-group difference (95% CI) of -0.61% (-0.85, -0.38). Treatment with omarigliptin resulted in a significantly greater reduction in FPG relative to placebo (LS mean difference [95% CI] -0.9 mmol/L [-1.4, -0.4]; p < 0.001). The proportion of patients achieving glycemic goals of <7.0% and <6.5% was higher in the omarigliptin group relative to the placebo group. The overall incidences of adverse events (AEs), serious AEs, drug-related AEs and discontinuations were generally similar between treatment groups. The incidence of symptomatic hypoglycemia was 10.5% in the omarigliptin group and 8.5% in the placebo group. Relative to baseline, omarigliptin and placebo treatments were associated with LS mean changes in body weight of -0.1 kg and -0.9 kg, respectively.In patients with T2D and inadequate glycemic control on dual therapy with metformin and glimepiride, compared with placebo, once-weekly omarigliptin provided greater improvement in glycemic control and was generally well tolerated.ClinicalTrials.gov: NCT01704261 , EudraCT Number: 2012-002612-10. Trial Registration Date: October 8, 2012.

Project description:IntroductionDipeptidyl peptidase-4 (DPP-4) inhibitors are an established treatment in type 2 diabetes mellitus (T2DM). The objective of this study was to investigate differences in quality of life (QOL) and treatment satisfaction among treatment-naïve T2DM patients receiving once-weekly trelagliptin or a daily DPP-4 inhibitor.MethodsIn this multicenter, randomized, open-label, parallel-group, phase IV study conducted in Japan, 218 patients were randomized to trelagliptin 100 mg once weekly or a once- or twice-daily DPP-4 inhibitor for 12 weeks (NCT03014479; JapicCTI-173482). QOL and treatment satisfaction were assessed using the Diabetes Therapy-Related QOL (DTR-QOL) Questionnaire and Diabetes Treatment Satisfaction Questionnaire (DTSQ), respectively. The primary endpoint was change from baseline in DTR-QOL total score at week 12. Secondary endpoints included further analysis of the DTR-QOL and DTSQ components. Other endpoints included glycemic control, treatment adherence, and safety.ResultsThe between-group difference in the change from baseline to week 12 in DTR-QOL total score was 2.418 (95% confidence interval - 1.546, 6.382; P = 0.2305). Analysis of the DTR-QOL and DTSQ results by subscales and stratification generally showed a numerical improvement with trelagliptin over daily DPP-4 inhibitors. QOL and treatment satisfaction improved with a reduction in frequency of concurrent and study drug dosing. Treatment adherence was > 97% for both groups. The effect of trelagliptin on glycemic control was similar to that seen with daily DPP-4 inhibitors. Trelagliptin and daily DPP-4 inhibitors were well-tolerated and demonstrated similar safety profiles.ConclusionsOnce-weekly trelagliptin 100 mg administered for 12 weeks resulted in a numerically, but not statistically, greater improvement in QOL and treatment satisfaction versus daily DPP-4 inhibitors. The decision to administer once-weekly or daily DPP-4 inhibitor treatment is likely to depend on patient preferences and the treatment policies of physicians.Trial registrationClinicalTrials.gov (NCT03014479) and JAPIC (JapicCTI-173482).FundingTakeda Pharmaceutical Company Ltd.

Dataset Information

A randomized, placebo- and sitagliptin-controlled trial of the safety and efficacy of omarigliptin, a once-weekly dipeptidyl peptidase-4 inhibitor, in Japanese patients with type 2 diabetes.

Publications

A randomized, placebo- and sitagliptin-controlled trial of the safety and efficacy of omarigliptin, a once-weekly dipeptidyl peptidase-4 inhibitor, in Japanese patients with type 2 diabetes.

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