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Result of Amylin-Eli Lilly study comparing exenatide to insulin glargine announces
San Diego | Tuesday, July 27, 2004, 08:00 Hrs  [IST]

Amylin Pharmaceuticals Inc and Eli Lilly and Company announced results from a six-month study that compared exenatide and insulin glargine in people with type 2 diabetes failing to achieve acceptable glycemic control with common oral therapies.

Patients in both groups achieved similar degrees of glycemic control in the study. In addition, patients on exenatide lost weight, compared to those on insulin glargine, who gained weight. As a result of the completion and analysis of this study, Lilly will pay Amylin a development milestone payment of $5 million, a release from Amylin said.

The focus of the study was to compare exenatide -the first drug candidate in a new class of drugs called incretin mimetics in development for the treatment of type 2 diabetes -with insulin glargine, a human insulin analog, in patients who have failed to control their diabetes on a combination of sulfonylurea and metformin.

More than 500 subjects were randomized to receive either a variable dose of insulin glargine at bedtime, or a fixed dose of exenatide twice daily just before breakfast and dinner in addition to their current oral therapies. The primary objective of the study was to achieve comparable glycemic response between the two groups, as evaluated by a change in A1C levels from baseline. Additional endpoints of the study included effects on weight, incidence of hypoglycemia, safety and tolerability.

Results demonstrate that both exenatide and insulin glargine achieved similar A1C reductions, with endpoint A1Cs of 7.2 percent for both groups at the end of the study. Subjects on exenatide lost an average of 5 pounds, while those on glargine gained an average of 3 pounds. Overall, the incidence of mild-to-moderate hypoglycemia was similar in both groups. There were four subjects in each treatment group that required the assistance of another person to provide oral treatment for hypoglycemia. None of these patients required medical assistance. Adverse events related to exenatide were similar to those seen in previous clinical trials. The most common adverse event reported was mild to moderate nausea, which occurred most frequently early in the study.

Exenatide is the first in a new class of drugs being investigated for the treatment of type 2 diabetes called incretin mimetics, and exhibits many of the same effects as the human incretin hormone GLP-1. Exenatide, like GLP-1, has effects on multiple organs that work in concert to improve blood sugar. A New Drug Application for exenatide was submitted to the Food and Drug Administration (FDA) for regulatory approval in June 2004, the release added.

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