Merck & Co. have announced that the US FDA have approved Juvisync (sitagliptin and simvastatin), a fixed-dose combination (FDC) prescription medication that contains two previously approved medicines in one tablet for use in adults who need both sitagliptin and simvastatin.
Sitagliptin is a dipeptidyl peptidase 4 (DPP-4) inhibitor that enhances the body's own ability to lower elevated blood sugar and is approved for use in combination with diet and exercise to improve glycemic control in adults with type 2 diabetes. Simvastatin is an HMG-CoA reductase inhibitor, or statin, approved for use with diet and exercise to reduce the amount of "bad cholesterol" (low-density lipoprotein cholesterol or LDL-C) in the blood.
This FDC is based on substantial experience with both sitagliptin and simvastatin, and the ability of the single tablet to deliver similar amounts of the drugs to the bloodstream as when sitagliptin and simvastatin are taken separately. Juvisync is a convenience combination and should only be prescribed when it is appropriate for a patient to be placed on both of these drugs.
Juvisync was approved in dosage strengths for sitagliptin/simvastatin of 100 mg/10 mg, 100 mg/20 mg and 100 mg/40 mg. The company have committed to develop FDC tablets with the sitagliptin 50 mg dose, as Juvisync 50 mg/10 mg, 50 mg/20 mg and 50 mg/40 mg. Pending availability of the FDC tablets containing 50 mg of sitagliptin, patients who require this dose should continue to use the single ingredient sitagliptin tablet. There is no plan to develop FDCs with the sitagliptin 25 mg dose as use of this dose is quite low.
Simvastatin is currently marketed in dosage strengths of 5, 10, 20, 40, and 80 mg. Due to recent restrictions placed on the use of the 80 mg dose because of a higher risk of muscle toxicity, there will not be a FDC using this dose. Merck does not plan to develop FDCs with the simvastatin 5 mg dose as use of this dose is quite low as well.
Click here to read the approval letter.
