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Similar to the well publicized "grapefruit juice effect", ongoing studies are evaluating the interaction potential of other dietary substances on drug disposition. This study is designed to determine whether the mechanism underlying the enhancement of the anticoagulative effect of warfarin by cranberry juice is due to inhibition of warfarin metabolism by the juice. A secondary objective is to determine whether cranberry juice elicits a grapefruit juice-type interaction with midazolam.
Allocation: Randomized, Control: Active Control, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Basic Science
warfarin, vitamin K, midazolam
UNC-Chapel Hill General Clinical Research Center
University of North Carolina, Chapel Hill
Published on BioPortfolio: 2014-08-27T03:17:12-0400
To assess the influence of multiple doses of BI 425809 on single dose pharmacokinetics of midazolam (CYP3A4 probe drug), warfarin (CYP2C9 probe drug), omeprazole (CYP2C19 probe drug) and d...
The purpose of this study is to evaluate effect of multiple-dose administration of JNJ-42847922 on the single-dose pharmacokinetics of oral midazolam and single-dose pharmacokinetics and p...
The purpose of this study is to determine whether BMS-708163 will effect the pharmacokinetics of the commonly prescribed medicines midazolam, warfarin, caffeine,omeprazole and dextromethor...
The study aimed to investigate the effect of BIRT 2584 XX and its metabolite BI 610100 on the Pharmacokinetics (PK) of five probe substrates for cytochrome P450 isozymes. The substrates u...
This is a four-part study to evaluate the effect of multiple doses of CC-90001 on the PK, safety, and tolerability of single doses of omeprazole, midazolam, warfarin, rosuvastatin, metform...
Warfarin therapy is recommended in children with giant coronary artery aneurysms (GCAAs) after Kawasaki disease (KD). Large individual variability makes it difficult to predict the warfarin dose. Poly...
Warfarin has long been the most widely prescribed oral anticoagulant. Introduction of non-vitamin K oral anticoagulants (NOACs) has provided anticoagulant options but also presented the potential chal...
A simple, sensitive, and high-throughput LC-APCI-MS/MS method for simultaneous determination of vitamin K, vitamin K 2,3-epoxide in human plasma and its application to a clinical pharmacodynamic study of warfarin.
Warfarin exerts its anticoagulation activity by blocking the vitamin K-epoxide cycle. A quantitative understanding of how warfarin and related genes interact with the vitamin K-epoxide cycle and the a...
The human genome encodes two paralogs of vitamin-K-epoxide reductase, VKORC1 and VKORL1, that support blood coagulation and other vitamin-K-dependent processes. Warfarin inhibits both enzymes, but VKO...
Midazolam has been successfully used for sedation, which the tablets, injections and oral solutions were available in market. However, the oral bioavailability of midazolam is less due to the first ef...
An anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. It is also used as an adjunct in the prophylaxis of systemic embolism after myocardial infarction. Warfarin is also used as a rodenticide.
A lipid cofactor that is required for normal blood clotting. Several forms of vitamin K have been identified: VITAMIN K 1 (phytomenadione) derived from plants, VITAMIN K 2 (menaquinone) from bacteria, and synthetic naphthoquinone provitamins, VITAMIN K 3 (menadione). Vitamin K 3 provitamins, after being alkylated in vivo, exhibit the antifibrinolytic activity of vitamin K. Green leafy vegetables, liver, cheese, butter, and egg yolk are good sources of vitamin K.
A nutritional condition produced by a deficiency of VITAMIN D in the diet, insufficient production of vitamin D in the skin, inadequate absorption of vitamin D from the diet, or abnormal conversion of vitamin D to its bioactive metabolites. It is manifested clinically as RICKETS in children and OSTEOMALACIA in adults. (From Cecil Textbook of Medicine, 19th ed, p1406)
OXIDOREDUCTASES which mediate vitamin K metabolism by converting inactive vitamin K 2,3-epoxide to active vitamin K.
A family of phylloquinones that contains a ring of 2-methyl-1,4-naphthoquinone and an isoprenoid side chain. Members of this group of vitamin K 1 have only one double bond on the proximal isoprene unit. Rich sources of vitamin K 1 include green plants, algae, and photosynthetic bacteria. Vitamin K1 has antihemorrhagic and prothrombogenic activity.
Pharmacy is the science and technique of preparing as well as dispensing drugs and medicines. It is a health profession that links health sciences with chemical sciences and aims to ensure the safe and effective use of pharmaceutical drugs. The scope of...
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...