Pharmacokinetics and Safety of DW1029M, a Botanical Drug for the Treatment of Diabetic Nephropathy, Following Single Doses in Healthy Subjects

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DW1029M is a botanical extract of Morus albalinne root bark and Puerariae radix that is used for the treatment of diabetic nephropathy. This study evaluated the safety and pharmacokinetics of DW1029M following its administration in healthy Korean subjects. We conducted a randomized, open-label, single-dose, crossover phase 1 clinical study. During each period, subjects received 300, 600, or 1200 mg oral doses of DW1029M. Plasma concentrations of puerarin, daidzin, and daidzein were analyzed using a liquid chromatography–tandem mass spectrometry. Six healthy male subjects completed the study. The maximum concentration of the drug in the plasma (Cmax) and area under the plasma drug concentration–time curve to the last measurable concentration (AUClast) for puerarin, daidzin, and daidzein were assessed after oral administration of DW1029M. No serious adverse events or clinically or statistically significant adverse events associated with any of the drug levels were observed. The results of the measurement of vital signs, electrocardiogram, laboratory tests, and physical examinations indicated that no clinically significant changes occurred during this study. The DW1029M tablet was safe and well tolerated over a single dose range of 300–1200 mg. This pharmacokinetic study of a botanical drug may aid in the development of DW1029M.

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