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In vitro and in vivo efficacy of the triazole TAK-187 against Cryptococcus neoformans.

Publication ,  Journal Article
Schell, WA; De Almeida, GM; Dodge, RK; Okonogi, K; Perfect, JR
Published in: Antimicrob Agents Chemother
October 1998

Multiple isolates of Cryptococcus neoformans, including those with fluconazole resistance, were tested to assess the in vitro activity of the new triazole TAK-187. MICs of TAK-187 were at least eightfold lower than those of fluconazole, and fungicidal concentrations for most isolates were 4 microg/ml or less. TAK-187 also was evaluated as intermittent therapy using two dosages in a rabbit model of experimental cryptococcal meningitis. Compared to daily treatment with fluconazole, as little as two doses of TAK-187 given 7 days apart were found to be effective. Plasma and cerebrospinal fluid TAK-187 concentrations were many times higher than MICs and fungicidal concentrations. Based upon its therapeutic efficacy and long half-life in the rabbit model, TAK-187 should be investigated for intermittent dosing in treatment or suppression of cryptococcal infections in humans.

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Published In

Antimicrob Agents Chemother

DOI

ISSN

0066-4804

Publication Date

October 1998

Volume

42

Issue

10

Start / End Page

2630 / 2632

Location

United States

Related Subject Headings

  • Triazoles
  • Rabbits
  • Microbiology
  • Microbial Sensitivity Tests
  • Cryptococcus neoformans
  • Cryptococcosis
  • Antifungal Agents
  • Animals
  • 3214 Pharmacology and pharmaceutical sciences
  • 3207 Medical microbiology
 

Citation

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Schell, W. A., De Almeida, G. M., Dodge, R. K., Okonogi, K., & Perfect, J. R. (1998). In vitro and in vivo efficacy of the triazole TAK-187 against Cryptococcus neoformans. Antimicrob Agents Chemother, 42(10), 2630–2632. https://doi.org/10.1128/AAC.42.10.2630
Schell, W. A., G. M. De Almeida, R. K. Dodge, K. Okonogi, and J. R. Perfect. “In vitro and in vivo efficacy of the triazole TAK-187 against Cryptococcus neoformans.Antimicrob Agents Chemother 42, no. 10 (October 1998): 2630–32. https://doi.org/10.1128/AAC.42.10.2630.
Schell WA, De Almeida GM, Dodge RK, Okonogi K, Perfect JR. In vitro and in vivo efficacy of the triazole TAK-187 against Cryptococcus neoformans. Antimicrob Agents Chemother. 1998 Oct;42(10):2630–2.
Schell, W. A., et al. “In vitro and in vivo efficacy of the triazole TAK-187 against Cryptococcus neoformans.Antimicrob Agents Chemother, vol. 42, no. 10, Oct. 1998, pp. 2630–32. Pubmed, doi:10.1128/AAC.42.10.2630.
Schell WA, De Almeida GM, Dodge RK, Okonogi K, Perfect JR. In vitro and in vivo efficacy of the triazole TAK-187 against Cryptococcus neoformans. Antimicrob Agents Chemother. 1998 Oct;42(10):2630–2632.

Published In

Antimicrob Agents Chemother

DOI

ISSN

0066-4804

Publication Date

October 1998

Volume

42

Issue

10

Start / End Page

2630 / 2632

Location

United States

Related Subject Headings

  • Triazoles
  • Rabbits
  • Microbiology
  • Microbial Sensitivity Tests
  • Cryptococcus neoformans
  • Cryptococcosis
  • Antifungal Agents
  • Animals
  • 3214 Pharmacology and pharmaceutical sciences
  • 3207 Medical microbiology