Effect of NXY-059, a novel neuroprotectant, on the pharmacokinetics of a single dose of digoxin in healthy subjects

Autor: Gunilla Huledal, Olof Borgå, Mischa van Hout, Ingalill Reinholdsson, Matts Kågedal, Hanna Svensson, Dag Nilsson, Yi‑Fang Cheng
Rok vydání: 2007
Předmět:
Zdroj: Current Medical Research and Opinion. 23:1531-1539
ISSN: 1473-4877
0300-7995
DOI: 10.1185/030079907x199646
Popis: NXY-059 is a novel free-radical trapping neuroprotectant. Digoxin treatment is common in acute ischaemic stroke, the intended patient population for NXY-059. Since both digoxin and NXY-059 are eliminated primarily renally, with a substantial contribution by active renal secretion, and because digoxin has a narrow therapeutic window, this open, randomised, crossover, two-period study investigated whether NXY-059 affects the pharmacokinetics (PK) of digoxin.Twenty-two healthy subjects received 0.5 mg oral digoxin 2 h after the start of 60-h intravenous infusions of NXY-059 and placebo separated by a 14-day washout. Blood and urine were collected for 60 h. Digoxin concentrations were measured by a novel liquid chromatography-mass spectrometry assay.The ratio of the geometric mean (90% confidence interval) between NXY-059 and placebo for the digoxin area under the concentration-versus-time curve was 0.91 (0.83-0.99) and was within the predefined range for no interaction (0.80-1.25). No safety concerns were raised in the study. No serious adverse events were recorded. The most common adverse event was headache with similar frequencies in the two treatments.NXY-059 had no clinically significant effect on the PK of digoxin.
Databáze: OpenAIRE