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Beraprost sodium-fluindione combination in healthy subjects: pharmacokinetic and pharmacodynamic aspects.
Warot, D; Berlin, I; Aymard, G; Ankri, A; Fabry, C; Besse, B; Lechat, P; Diquet, B.
Afiliação
  • Warot D; Pitié-Salpêtrière University Hospital, Clinical Pharmacology Department, Assistance Publique-Hôpitaux de Paris, 47, boulevard de l'Hôpital, 75751 Paris 13, France. dominique.warot@psl.ap-hop-paris.fr
Fundam Clin Pharmacol ; 14(3): 231-6, 2000.
Article em En | MEDLINE | ID: mdl-15602800
Beraprost sodium (BPS), an orally active PGI2 (prostaglandine 12) analogue possesses vasodilatating and platelet aggregation inhibiting properties. It is being developed in peripheral arterial occlusive disease. As in future clinical practice BPS might be co-prescribed with oral anticoagulants, we investigated its interaction with fluindione, a vitamin K antagonist in healthy subjects in a randomised, double-blind, placebo-controlled, crossover study. Twelve healthy Caucasian male subjects randomly received BPS 40 microg t.i.d. or placebo for 3 days. There was a 7 day wash out between the two treatment periods. On day 3 of each treatment, the subjects ingested concomitantly a single oral dose of 20 mg of fluindione. The main assessment criterion was fluindione's pharmacokinetics. Secondarily, pharmacodynamic measurements of coagulation (prothrombin time, and International Normalised Ratio, INR) and platelet function (in vitro closure time assessed by PFA-100) were performed. Fluindione was assayed by HPLC with UV detection up to 96 h post-drug. No statistical difference could be evidenced on any fluindione pharmacokinetic parameters between BPS and placebo phases: t 1/2 (h): 35.9 (8.2) vs. 34.0 (4.2) [90% CI 105.8 (95.5-116.2)]; T(max) (h): 2.0 (0.5-6.0) vs. 4.0 (0.5-6.0) [90% CI 136.4 (70.7-208.9)]; Cmax (mg/L): 3.1 (0.6) vs. 2.9 (0.5) [90% CI 94.1 (85.8-103.2)]; AUC 0-inf (mg/h/L): 117.0 (31.5) vs. 113.9 (33.8) [90% CI 97.6 (87.5-108.8)]. The studied doses of BPS did not affect platelet function, at least as assessed by the in vitro platelet function testing. Twenty milligrams of fluindione marginally modified the PT ratio and INR, however, no statistically significant difference was found between BPS and placebo phases. In conclusion, a 3 day regimen of BPS 40 microg t.i.d. by oral route does not seem to affect pharmacokinetic parameters of a fluindione 20 mg single dose.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fenindiona / Coagulação Sanguínea / Inibidores da Agregação Plaquetária / Epoprostenol / Anticoagulantes Tipo de estudo: Clinical_trials Limite: Humans / Male Idioma: En Revista: Fundam Clin Pharmacol Assunto da revista: FARMACOLOGIA Ano de publicação: 2000 Tipo de documento: Article País de afiliação: França
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fenindiona / Coagulação Sanguínea / Inibidores da Agregação Plaquetária / Epoprostenol / Anticoagulantes Tipo de estudo: Clinical_trials Limite: Humans / Male Idioma: En Revista: Fundam Clin Pharmacol Assunto da revista: FARMACOLOGIA Ano de publicação: 2000 Tipo de documento: Article País de afiliação: França