Single oral dose escalation pharmacokinetics of pleconaril (VP 63843) capsules in adults

Journal of Clinical Pharmacology
Susan M Abdel-Rahman, Gregory L Kearns

Abstract

Pleconaril is an orally active broad-spectrum antipicornaviral agent with excellent penetration into the central nervous system and nasal epithelium. The authors report the results of a randomized, placebo-controlled, dose escalation study of pleconaril oral capsules following single-dose administration of 50 to 1000 mg. Fifty-six healthy adults (ages 19-55) participated in the study. Each subject received a single dose of pleconaril oral capsule(s) or an identically matched placebo. Blood samples (n = 19) were obtained over 36 hours postdose, and pleconaril was quantified from plasma by gas chromatography. Pleconaril disposition was best characterized using a two-compartment open-model with first-order absorption. Fifty-five subjects completed the study (31 +/- 10 years, 77.6 +/- 11 kg). The administration of pleconaril was well tolerated. There was no difference in tmax, lambda z, ka, t1/2elim, Cl/F, or Vdss/F among the various dose groups. A significant difference in both Cmax and AUC was observed between study groups; however, this difference became insignificant when the parameters were corrected for dose. Cmax and AUC were dose proportional between 50 and 1000 mg (r2 > 0.97 and 0.90, respectively). Pleconaril demonstrates...Continue Reading

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Citations

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