Evidence map›Paper›PMID 16304173›Full record

ArticleAntimicrobial agents and chemotherapy2005

Pharmacodynamics of caspofungin in a murine model of systemic candidiasis: importance of persistence of caspofungin in tissues to understanding drug activity.

Arnold Louie, Mark Deziel, Weiguo Liu, Michael F Drusano, Tawanda Gumbo, George L Drusano

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02413892 (Impact of a Loading Dose of Caspofungin on Pharmacokinetic and Pharmacodynamic Parameters Target Achievements for Severe Candida Infections in ICU Patients), which is not on this map. Cited by 72 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 1 pooled it
7.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02413892 completednot on this mapstarted 2015, after this paper: background citation

Impact of a Loading Dose of Caspofungin on Pharmacokinetic and Pharmacodynamic Parameters Target Achievements for Severe Candida Infections in ICU Patients

TypeobservationalSponsorOutcome ReaRan2015 to 2017Enrolled15ConditionsCandida Infections
3 · Its place in the literature

Who cites it

72 citing papers in PubMed, 1 synthesis or guideline pooled it, 164 citations in OpenAlex.

  1. Antifungal pharmacodynamics: Latin America's perspective.The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases
    Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Anticandidal Effects ofCurrent pharmaceutical design · 2026
    Article
  6. Article
  7. A Mini-Review of In Vitro Data forJournal of fungi (Basel, Switzerland) · 2024
    Review
  8. Review
  9. Article
  10. Article
  11. Assessment of Antifungal Pharmacodynamics.Journal of fungi (Basel, Switzerland) · 2023
    Article
  12. Postantifungal Effect of Antifungal Drugs againstJournal of fungi (Basel, Switzerland) · 2022
    Review
  13. Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article

12 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Arnold LouieEmerging Infections and Pharmacodynamics Laboratory, Ordway Research Institute, 150 New Scotland Avenue, Albany, New York 12208, USA. alouie@ordwayresearch.org
Mark Deziel
Weiguo Liu
Michael F Drusano
Tawanda Gumbo
George L Drusano
Institute for Clinical Pharmacodynamics (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pharmacokinetic and pharmacodynamic studies were conducted in a murine model of systemic candidiasis to determine the pharmacodynamic parameter linked with caspofungin efficacy. Additional studies defined the importance of persistent tissue drug concentrations to treatment outcome. The pharmacokinetics of caspofungin were determined in the serum and kidneys of infected mice over 96 h. Population pharmacokinetic analysis demonstrated a serum terminal half-life (t(1/2)) for caspofungin of 20.2 h when only serum concentrations were considered, but the terminal t(1/2) increased to 59.2 h when serum and kidney concentration-time data were co-modeled. In dose-range studies, the dose-response effect was well described by an inhibitory sigmoid curve for the exposure-effect killing caused by the drug (r2 > 0.96; P << 0.001). In dose-fractionation studies, fungal counts in kidneys were not statistically different for total doses given as one, two, or four equally divided doses over 96 h, indicating that the area under the concentration-time curve/MIC is the pharmacodynamic parameter that predicts caspofungin efficacy in our infection model. In a separate study, mice infected with Candida albicans 24 h after serum concentrations of caspofungin fell below the MIC for the fungal isolate had significant reductions in fungal densities in their kidneys compared with the growth of fungi in the kidneys of untreated controls (P = 0.005). This in vivo biological assay demonstrates that therapeutic concentrations of caspofungin persist at the site of infection in kidney tissue well after serum concentrations fall below the MIC, underscoring the primacy of caspofungin levels in tissues on determining treatment outcome.

Indexed as

AnimalsAntifungal AgentsCandida albicansCandidiasisCaspofunginDisease Models, AnimalDose-Response Relationship, DrugEchinocandinsLipopeptidesMiceMicrobial Sensitivity TestsPeptides, CyclicTissue DistributionAntifungal AgentsCaspofunginEchinocandinsLipopeptidesPeptides, Cyclic

Identifiers

PMID16304173
PMCPMC1315924
OpenAlexW2147556278

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.