The bioequivalence and safety of levetiracetam granules (test formulation) and oral solution (reference formulation) were evaluated in Chinese healthy volunteers under a fasting condition. A total of 24 subjects randomly received the test or reference formulation at the rate of 1:1. The alternative formulation was administered after a 7-day washout period.
View Article and Find Full Text PDFPurpose: To compare the bioequivalence of two formulations of valsartan (80 mg capsules) under fasting and fed conditions in healthy Chinese volunteers using a full-replicate study design.
Methods: A total of 78 Subjects were randomly assigned to fasting cohort (n = 48) or fed cohort (n = 30). Each cohort includes 4 single-dose observation periods and 3-day washout periods.
Artesun-Plus is a fixed-dose combination antimalarial agent containing artesunate and amodiaquine. The current study was conducted to compare the pharmacokinetic and safety profiles of Artesun-Plus and the WHO-designated comparator product Artesunate Amodiaquine Winthrop. To overcome the high intrasubject variability of artesunate, the study applied a two-sequence and four-period crossover (2 by 4), replicate study design to assess bioequivalence between the two products in 31 healthy male Chinese volunteers under fasting conditions.
View Article and Find Full Text PDFBackground: Sulfadoxine/pyrimethamine fixed-dose combination (FDC) tablet is the long-acting portion of the antimalaria product Artecospe(®), coblister containing artesunate tablets plus sulfadoxine/pyrimethamine FDC tablets. This study was conducted to support the efficacy and tolerability of the sulfadoxine/pyrimethamine FDC tablet in the World Health Organization's (WHO) Prequalification of Medicines Programme, as well as to obtain marketing authorization in China.
Objective: The aim of the present study was to compare the pharmacokinetic profiles between a new generic and the branded reference formulation of sulfadoxine/pyrimethamine FDC tablets, and to assess the bioequivalence of the 2 products in healthy Chinese volunteers.
A series of heterocycle-containing oxindoles was synthesized and their HIV antiviral activities were assessed. Some of these analogs exhibited potent inhibitory activities against both wild-type virus and a number of drug-resistant mutant viruses. In addition, oxindole 9z also showed promising pharmacokinetics.
View Article and Find Full Text PDFMetabolism and disposition of MGS0028 [(1R,2S,5S,6S)-2-amino-6-fluoro-4-oxobicyclo[3.1.0]hexane-2,6-dicarboxylic acid monohydrate], a potent group II metabotropic glutamate receptor agonist, were examined in three preclinical species (Sprague-Dawley rats, beagle dogs, and rhesus monkeys).
View Article and Find Full Text PDFA series of novel compounds have been designed that are potent inhibitors of poly(ADP-ribose) polymerase-1 (PARP-1), and the activity and physical properties have been characterized. The new structural classes, 3,4,5,6-tetrahydro-1H-azepino[5,4,3-cd]indol-6-ones and 3,4-dihydropyrrolo[4,3,2-de]isoquinolin-5-(1H)-ones, have conformationally locked benzamide cores that specifically interact with the PARP-1 protein. The compounds have been evaluated with in vitro cellular assays that measure the ability of the PARP-1 inhibitors to enhance the effect of cytotoxic agents against cancer cell lines.
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