Modern aspects of testing azole antifungals

Area of Science:

• Mycology
• Antimicrobial Susceptibility Testing
• Pharmacology

Background:

• Azole antimycotics are crucial for treating fungal infections.
• Standardized in vitro testing methods are essential for guiding clinical therapy.
• Challenges exist in accurately determining the efficacy of azole antifungals.

Purpose of the Study:

• To describe the difficulties encountered during in vitro testing of azole antimycotics.
• To evaluate the clinical relevance of minimal inhibitory concentration (MIC) results for azoles.
• To compare MIC data of azoles with those of polyene antimycotics.

Main Methods:

• Review of existing literature on azole and polyene antimycotic in vitro testing.
• Analysis of minimal inhibitory concentration (MIC) data from various studies.
• Comparative assessment of testing methodologies and result interpretation.

Main Results:

• In vitro testing of azole antimycotics is complex, with variable results.
• Minimal inhibitory concentration (MIC) values for azoles require careful interpretation.
• Significant differences exist in the in vitro performance and interpretation of azole versus polyene antimycotics.

Conclusions:

• Standardized protocols are needed for reliable azole antimycotic susceptibility testing.
• Minimal inhibitory concentration (MIC) data should be contextualized with other efficacy markers.
• Understanding testing limitations is key for effective antifungal drug selection.