Daiichi Sankyo, Inc, said the United States Food and Drug Administration (FDA) has approved its cholesterol drug Welchol (colesevelam HCl) to reduce both glucose levels and low density lipoprotein cholesterol levels (LDL-C) in adults with type 2 diabetes.
Welchol is now the first and only medication approved to improve glycemic control (measured as haemoglobin A1C) in adults with type 2 diabetes mellitus in combination with metformin, sulfonylureas, or insulin, either alone or in combination with other anti-diabetic agents.
The ADA estimates that 20.8 million people in the United States have diabetes with more than 90 per cent of these people having type 2 diabetes. Forty per cent of patients with type 2 diabetes also have high LDL-cholesterol . Welchol is a new option that addresses both these chronic health conditions and provides physicians with a unique therapeutic approach for treating patients with type 2 diabetes.
The data from the study demonstrated that Welchol can lower both A1C and LDL-C levels in patients with type 2 diabetes who were uncontrolled on a metformin-based regimen. Patients in the study were randomly assigned to two groups. The addition of Welchol was compared to the addition of placebo in patients on a metformin-based regimen. The addition of Welchol (n=79) to pre-existing metformin monotherapy achieved a significant mean reduction in A1C levels of 0.47 percent relative to placebo (p<0.0024).
"Welchol now offers physicians a treatment option that addresses two major cardiovascular risk factors; elevated LDL cholesterol and blood glucose in patients with type 2 diabetes," said Ronald B. Goldberg, MD, an investigator in the insulin and metformin pivotal studies and Professor of Medicine at the Division of Diabetes and Metabolism and Associate Director of the Diabetes Research Institute at the University of Miami, Miller School of Medicine in Florida. "Cardiovascular risk factors are of great concern because patients with type 2 diabetes have a significantly increased risk of developing cardiovascular disease. Once clinical cardiovascular disease develops, these patients have a poorer prognosis than normoglycemic patients."Since 2000, Welchol, a bile acid sequestrant, has been indicated, alone or in combination with a statin, for the reduction of elevated LDL-C in patients with primary hypercholesterolemia. It is different from most other cholesterol-lowering drugs on the market because it is non-systemic, meaning that the body does not absorb it and it is eliminated without traveling to the liver or kidneys. Therefore, Welchol is not expected to have drug interactions via the cytochrome P450 pathway. Systemic medications, which include statins, fibrates and cholesterol absorption inhibitors, are those that are absorbed from the intestine into the bloodstream and travel throughout the body, specifically to the liver and/or kidneys.
Welchol is indicated as an adjunct to diet and exercise to reduce elevated low-density lipoprotein cholesterol (LDL-C) in patients with primary hyperlipidemia (Fredrickson Type IIa) as monotherapy or in combination with an hydroxymethyl-glutaryl-coenzyme A (HMG CoA) reductase inhibitor. Welchol is also indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus.
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