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Randomized comparison of pramlintide or mealtime insulin added to basal insulin treatment for patients with type 2 diabetes.

ABSTRACT: To compare the efficacy and safety of adding mealtime pramlintide or rapid-acting insulin analogs (RAIAs) to basal insulin for patients with inadequately controlled type 2 diabetes.In a 24-week open-label, multicenter study, 113 patients were randomly assigned 1:1 to addition of mealtime pramlintide (120 microg) or a titrated RAIA to basal insulin and prior oral antihyperglycemic drugs (OADs). At screening, patients were insulin naive or had been receiving <50 units/day basal insulin for <6 months. The basal insulin dosage was titrated from day 1, seeking fasting plasma glucose (FPG) > or =70-<100 mg/dl. Pramlintide and an RAIA were initiated on day 1 and week 4, respectively. The proportion of patients achieving A1C < or =7.0% without weight gain or severe hypoglycemia at week 24 was the primary end point.More pramlintide- than RAIA-treated patients achieved the primary end point (30 vs. 11%, P = 0.018) with a similar dose of basal insulin. Pramlintide and an RAIA yielded similar mean +/- SEM values for FPG and A1C at 24 weeks (122 +/- 7 vs. 123 +/- 5 mg/dl and 7.2 +/- 0.2 vs. 7.0 +/- 0.1%, respectively) and similar least squares mean reductions from baseline to end point (-31 +/- 6 vs. -34 +/- 6 mg/dl and -1.1 +/- 0.2 vs. -1.3 +/- 0.2%, respectively). RAIAs but not pramlintide caused weight gain (+4.7 +/- 0.7 vs. +0.0 +/- 0.7 kg, P < 0.0001). Fewer patients reported mild to moderate hypoglycemia with pramlintide than with the RAIA (55 vs. 82%), but more patients reported nausea (21 vs. 0%). No severe hypoglycemia occurred in either group.In patients taking basal insulin and OADs, premeal fixed-dose pramlintide improved glycemic control as effectively as titrated RAIAs. The pramlintide regimen sometimes caused nausea but no weight gain and less hypoglycemia.

SUBMITTER: Riddle M

PROVIDER: S-EPMC2732154 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature

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Randomized comparison of pramlintide or mealtime insulin added to basal insulin treatment for patients with type 2 diabetes.

Riddle Matthew M Pencek Richard R Charenkavanich Supoat S Lutz Karen K Wilhelm Ken K Porter Lisa L

Diabetes care 20090605 9

<h4>Objective</h4>To compare the efficacy and safety of adding mealtime pramlintide or rapid-acting insulin analogs (RAIAs) to basal insulin for patients with inadequately controlled type 2 diabetes.<h4>Research design and methods</h4>In a 24-week open-label, multicenter study, 113 patients were randomly assigned 1:1 to addition of mealtime pramlintide (120 microg) or a titrated RAIA to basal insulin and prior oral antihyperglycemic drugs (OADs). At screening, patients were insulin naive or had ...[more]

PMID: 19502544

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Project description:Context:Combination therapy with insulin and glucagon-like peptide-1 receptor agonists (GLP-1RAs) is important for treating type 2 diabetes (T2D). This trial assesses the efficacy and safety of semaglutide, a GLP-1RA, as an add-on to basal insulin. Objective:To demonstrate the superiority of semaglutide vs placebo on glycemic control as an add-on to basal insulin in patients with T2D. Design:Phase 3a, double-blind, placebo-controlled, 30-week trial. Setting:This study included 90 sites in five countries. Patients:We studied 397 patients with uncontrolled T2D receiving stable therapy with basal insulin with or without metformin. Interventions:Subcutaneous semaglutide 0.5 or 1.0 mg once weekly or volume-matched placebo. Main Outcome Measures:Primary endpoint was change in glycated Hb (HbA1c) from baseline to week 30. Confirmatory secondary endpoint was change in body weight from baseline to week 30. Results:At week 30, mean HbA1c reductions [mean baseline value, 8.4% (67.9 mmol/mol)] with semaglutide 0.5 and 1.0 mg were 1.4% (15.8 mmol/mol) and 1.8% (20.2 mmol/mol) vs 0.1% (1.0 mmol/mol) with placebo [estimated treatment difference (ETD) vs placebo, -1.35 (14.8 mmol/mol); 95% CI, -1.61 to -1.10 and ETD, -1.75% (19.2 mmol/mol); 95% CI, -2.01 to -1.50; both P < 0.0001]. Severe or blood glucose-confirmed hypoglycemic episodes were reported in 11 patients (17 events) and 14 patients (25 events) with semaglutide 0.5 and 1.0 mg, respectively, vs seven patients (13 events) with placebo (estimated rate ratio vs placebo, 2.08; 95% CI, 0.67 to 6.51 and estimated rate ratio vs placebo, 2.41; 95% CI, 0.84 to 6.96 for 0.5 and 1.0 mg; both P = nonsignificant). Mean body weight decreased with semaglutide 0.5 and 1.0 mg vs placebo from baseline to end of treatment: 3.7, 6.4, and 1.4 kg (ETD, -2.31; 95% CI, -3.33 to -1.29 and ETD, -5.06; 95% CI, -6.08 to -4.04 kg; both P < 0.0001). Premature treatment discontinuation due to adverse events was higher for semaglutide 0.5 and 1.0 mg vs placebo (4.5%, 6.1%, and 0.8%), mainly due to gastrointestinal disorders. Conclusions:Semaglutide, added to basal insulin, significantly reduced HbA1c and body weight in patients with uncontrolled T2D vs placebo.

Project description:IntroductionTo date, there have been few head-to-head comparisons between semaglutide once-weekly (OW) and short-acting meal-time insulin in participants with type 2 diabetes (T2D) treated with basal insulin and requiring treatment intensification. This indirect comparison evaluated the effects of these regimens on glycated haemoglobin (HbA1c), body weight, hypoglycaemia, and other clinically relevant outcomes.MethodsA post-hoc, unanchored, individual participant data meta-analysis was conducted on the basis of data from single treatment arms in the SUSTAIN 5 and DUAL 7 trials. Semaglutide 0.5 mg OW and 1.0 mg OW plus basal insulin were compared with an optimised (treat-to-target) basal-bolus regimen of insulin glargine and insulin aspart over 26 weeks, using regression adjustment to account for baseline differences between the trials.ResultsOver 26 weeks, semaglutide 1.0 mg OW plus basal insulin reduced mean HbA1c by significantly more than the basal-bolus regimen (treatment difference: - 0.36%; p = 0.003), while semaglutide 0.5 mg OW plus basal insulin was comparable with basal-bolus insulin (treatment difference: 0.08%, p = 0.53). Both doses of semaglutide were associated with significant weight loss relative to insulin intensification (treatment differences: 6.8-9.4 kg; p < 0.001). At both doses, semaglutide intensification required less basal insulin per day than bolus intensification, and more participants on semaglutide met HbA1c targets of < 7.0% and ≤ 6.5% without hypoglycaemia or weight gain (odds ratio [OR] for < 7.0%, 21.9; OR for ≤ 6.5%, 16.2; both p < 0.001).ConclusionsIn T2D uncontrolled by basal insulin, intensification with semaglutide 1.0 mg OW was associated with better glycaemic control, weight loss, and reduced hypoglycaemia versus a basal-bolus regimen, while limiting the treatment burden associated with frequent injections. Clinicians could consider treatment intensification with semaglutide when T2D is uncontrolled by basal insulin, especially when weight management is a priority. Effective glycaemic control coupled with weight management can alleviate the burden of diabetes-associated complications.

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Randomized comparison of pramlintide or mealtime insulin added to basal insulin treatment for patients with type 2 diabetes.

Publications

Randomized comparison of pramlintide or mealtime insulin added to basal insulin treatment for patients with type 2 diabetes.

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