Pharmacokinetics of defibrotide in healthy volunteers.
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Noseda G, Fragiacomo C, Ferrari D
Pharmacokinetics of defibrotide in healthy volunteers.
Haemostasis. 1986;16 Suppl 1:26-30.
- PubMed ID
- 3754833 [ View in PubMed]
- Abstract
A pharmacokinetic study of defibrotide, an antithrombotic polydeoxyribonucleotide extract, was performed in 5 healthy volunteers after rapid intravenous injection at three different doses: 0.5, 4 and 16 mg/kg. Defibrotide was given to 2 additional healthy volunteers by slow perfusion of 600 mg over 6 h, after a 200-mg intravenous bolus injection. The blood levels of defibrotide were determined by a method supplied by Crinos (detection of 6-desoxyribose). A one-compartment model was used to describe the kinetics of the drug in plasma. All the most important pharmacokinetic parameters (i.e. elimination constant, half-life, AUC and volume of distribution) were dose dependent. The half-lives were 9.8 min at 0.5 mg/kg, 14.2 min at 4 mg/kg and 21.1 min at 16 mg/kg. The dose-response curves for elimination indicated saturation. During slow infusion following the bolus injection a steady state was reached at 90-120 min, with a blood level of 10-15 micrograms/ml.
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