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Azole resistance in Aspergillus species: promising therapeutic options
Shirisha Pasula1, Pranatharthi H Chandrasekar2
1Department of Internal medicine, Division of Infectious diseases, Detroit Medical Center/Wayne State University, Detroit, MI, USA.
Introduction:
Azoles are the first-line antifungal agents used for the treatment of Aspergillus infection. There is an increasing concern for azole resistance all over the world mainly from agricultural fungicide use. Choosing safe and effective antifungal regimens has become a challenge.
Areas Covered:
Here, the authors review the epidemiology, mechanisms, and detection of azole resistance along with management options for azole-resistant Aspergillus infection, including new antifungal agents under development.
Expert Opinion:
Routine global epidemiological surveillance is required to understand azole resistance prevalence. Azole-resistant Aspergillus infections are associated with high mortality. No good therapeutic options are currently available. High index of suspicion of resistance is required if a patient is not responding to 4-7 days of azole therapy, particularly in the areas of resistance. Susceptibility testing for Aspergillus is not routinely available in many parts of the world, which makes it difficult to diagnose azole resistance in Aspergillus infection. There are several new antifungal classes with novel mechanisms of action; clinical trials are ongoing.
Insights
Azole resistance in Aspergillus infections is a growing global concern, driven by agricultural fungicide use. This resistance poses a significant challenge, with limited treatment options and high mortality rates.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Antimicrobial Resistance
Background:
- Azoles are primary treatments for Aspergillus infections.
- Agricultural fungicide use contributes to rising azole resistance worldwide.
- Antifungal treatment selection is increasingly challenging due to resistance.
Purpose of the Study:
- To review the epidemiology of azole resistance in Aspergillus.
- To discuss mechanisms and detection methods for azole resistance.
- To explore management strategies for azole-resistant Aspergillus infections.
Main Methods:
- Literature review of epidemiology, resistance mechanisms, and detection.
- Analysis of current and emerging antifungal agents.
- Evaluation of clinical management strategies for resistant infections.
Main Results:
- Azole resistance in Aspergillus is a significant global issue.
- Resistance is linked to high mortality rates and limited therapeutic options.
- Early suspicion and susceptibility testing are crucial for managing resistant cases.
Conclusions:
- Global surveillance of azole resistance prevalence is essential.
- Prompt identification of resistance is critical due to poor treatment outcomes.
- New antifungal agents are under development to combat resistant Aspergillus strains.
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