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DPP-4 inhibitors and GLP-1. Inhibitors of dipeptidyl peptidase 4 (DPP-4 inhibitors or gliptins) are a class of oral hypoglycemics that block the enzyme dipeptidyl peptidase-4 (DPP-4). They can be used to treat diabetes mellitus type 2. The first agent of the class – sitagliptin – was approved by the FDA in 2006. [1]
In 1999, Merck started a drug development program on DPP-4 inhibitors. When they started internal screening and medicinal chemistry program, two DPP-4 inhibitors were already in clinical trials, isoleucyl thiazolidide (P32/38) and NVP-DPP728 from Novartis. Merck in-licensed L-threo-isoleucyl thiazolidide and its allo stereoisomer.
Another class of anti-diabetes drugs, DPP-4 inhibitors, work by reducing the breakdown of endogenous GLP-1, and are generally considered less potent than GLP-1 agonists. [3] Some of the metabolic effects of GLP-1 agonists in rodents are mediated via increased synthesis of fibroblast growth factor 21 ( FGF21 ).
According to research by the Kaiser Family Foundation, about 1 in 8 adults in the U.S. has taken a GLP-1 drug to treat diabetes, promote weight loss or prevent heart attacks or strokes (in those ...
To overcome this, GLP-1 receptor agonists and DPP-4 inhibitors have been developed to increase GLP-1 activity. As opposed to common treatment agents such as insulin and sulphonylureas, GLP-1-based treatment has been associated with weight loss and a lower risk of hypoglycemia, two important considerations for patients with type 2 diabetes.
Vildagliptin inhibits the inactivation of GLP-1 [2] [3] and GIP [3] by DPP-4, allowing GLP-1 and GIP to potentiate the secretion of insulin in the beta cells and suppress glucagon release by the alpha cells of the islets of Langerhans in the pancreas. It was approved by the EMA in 2007. [4]
It is a glucagon-like peptide-1 receptor agonist (GLP-1 agonist) consisting of GLP-1(7-37) covalently linked to an Fc fragment of human IgG4. GLP-1 is a hormone that is involved in normalizing the level of glucose in blood (glycemia). The Food and Drug Administration (FDA) approved dulaglutide for use in the United States in September 2014.
DPP-4 inhibitor: Clinical data; Trade names: ... is a fixed-dose combination anti-diabetic medication used for the treatment of type 2 diabetes. [1] It contains ...
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