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  • Martial, Lisa C (author)

Dose Reduction of Caspofungin in Intensive Care Unit Patients with Child Pugh B Will Result in Suboptimal Exposure.

  • Article/chapterEnglish2016

Publisher, publication year, extent ...

  • 2015-12-09
  • Springer Science and Business Media LLC,2016
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-279079
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-279079URI
  • https://doi.org/10.1007/s40262-015-0347-2DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • BACKGROUND AND OBJECTIVES: Caspofungin is an echinocandin antifungal agent used as first-line therapy for the treatment of invasive candidiasis. The maintenance dose is adapted to body weight (BW) or liver function (Child-Pugh score B or C). We aimed to study the pharmacokinetics of caspofungin and assess pharmacokinetic target attainment for various dosing strategies.METHODS: Caspofungin pharmacokinetic data from 21 intensive care unit (ICU) patients was available. A population pharmacokinetic model was developed. Various dosing regimens (loading dose/maintenance dose) were simulated: licensed regimens (I) 70/50 mg (for BW <80 kg) or 70/70 mg (for BW >80 kg); and (II) 70/35 mg (for Child-Pugh score B); and adapted regimens (III) 100/50 mg (for Child-Pugh score B); (IV) 100/70 mg; and (V) 100/100 mg. Target attainment based on a preclinical pharmacokinetic target for Candida albicans was assessed for relevant minimal inhibitory concentrations (MICs).RESULTS: A two-compartment model best fitted the data. Clearance was 0.55 L/h and the apparent volumes of distribution in the central and peripheral compartments were 8.9 and 5.0 L, respectively. The median area under the plasma concentration-time curve from time zero to 24 h on day 14 for regimens I-V were 105, 65, 93, 130, and 186 mg·h/L, respectively. Pharmacokinetic target attainment was 100 % (MIC 0.03 µg/mL) irrespective of dosing regimen but decreased to (I) 47 %, (II) 14 %, (III) 36 %, (IV) 69 %, and (V) 94 % for MIC 0.125 µg/mL.CONCLUSION: The caspofungin maintenance dose should not be reduced in non-cirrhotic ICU patients based on the Child-Pugh score if this classification is driven by hypoalbuminemia as it results in significantly lower exposure. A higher maintenance dose of 70 mg in ICU patients results in target attainment of >90 % of the ICU patients with species with an MIC of up to 0.125 µg/mL.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Brüggemann, Roger J M (author)
  • Schouten, Jeroen A (author)
  • van Leeuwen, Henk J (author)
  • van Zanten, Arthur R (author)
  • de Lange, Dylan W (author)
  • Muilwijk, Eline W (author)
  • Verweij, Paul E (author)
  • Burger, David M (author)
  • Aarnoutse, Rob E (author)
  • Pickkers, Peter (author)
  • Dorlo, Thomas P CUppsala universitet,Institutionen för farmaceutisk biovetenskap,Pharmacometrics Group(Swepub:uu)thodo249 (author)
  • Uppsala universitetInstitutionen för farmaceutisk biovetenskap (creator_code:org_t)

Related titles

  • In:Clinical Pharmacokinetics: Springer Science and Business Media LLC55:6, s. 723-7330312-59631179-1926

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