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Effect of High-Dose Posaconazole on Serum Levels in Adult Patients with Hematologic Malignancy.

Adam J DiPippoPatrick M McDaneldFrank P TverdekDimitrios P Kontoyiannis
Published in: Antimicrobial agents and chemotherapy (2021)
Posaconazole (POS) appears to have dose-proportional pharmacokinetics; however, there is a paucity of real-life data. We retrospectively evaluated 67 patients with hematologic cancer who had POS dose increases from 300 mg/day to either 400 mg/day (n = 52) or 300 mg twice daily (BID) (n = 15) and for whom POS serum levels were measured. Median POS levels were 840 ng/ml, 1,625 ng/ml, and 2,710 ng/ml for the dosages of 300 mg/day, 400 mg/day, and 300 mg BID, respectively. Significant interpatient variability in serum levels was noted.
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