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Updated: Jun 3, 2026

Broth Microdilution In Vitro Screening: An Easy and Fast Method to Detect New Antifungal Compounds
Published on: February 14, 2018
Newer antifungal agents
1Pediatric Infectious Diseases Department, Bakirkoy Maternity and Children's Research Hospital, Istanbul, Turkey.
Abstract:
The frequency and spectrum of fungal infections have been increasing steadily over the last several decades. The reason for this increase may be explained by the increase in the number of immunocompromised patients due to malignancies, AIDS, invasive surgical procedures and transplantation. In parallel with this increase, several therapeutic options have become available but problems such as intrinsic or acquired antifungal resistance have led researchers to develop new antifungal drugs with expanded effectiveness. Reduced toxicity, enhancement of bioavailability and counteraction of resistance are features desired by clinicians. The aim of this article is to summarize the studies involving isavuconazole, ravuconazole, albaconazole, aminocandin and some other investigational antifungal agents. Most data on the clinical use of ravuconazole, isavuconazole and albaconazole are mainly available as meeting abstracts or limited to animal studies or Phase I/II studies in humans. These new antifungal agents in development offer extended half-lives, possibly reduced drug interaction profiles and good tolerance. In addition to activity against Candida and Aspergillus spp., they have a broad spectrum of activity including activity against resistant and emerging pathogens. The real possibilities of these agents will only be fully understood after adequate randomized clinical trials.
Insights
New antifungal drugs like isavuconazole and ravuconazole show promise in combating rising fungal infections, particularly in immunocompromised patients. These agents offer broader effectiveness and improved tolerance, addressing critical needs in antifungal therapy.
Area of Science:
- Mycology
- Infectious Diseases
- Pharmacology
Background:
- Fungal infections are increasing due to a rise in immunocompromised individuals.
- Antifungal resistance is a growing concern, necessitating novel therapeutic agents.
- Existing treatments face challenges with resistance, toxicity, and bioavailability.
Purpose of the Study:
- To review investigational antifungal agents including isavuconazole, ravuconazole, albaconazole, and aminocandin.
- To highlight the development of new antifungal drugs with improved characteristics.
- To address the need for agents with expanded effectiveness and reduced toxicity.
Main Methods:
- Literature review of studies on new antifungal agents.
- Focus on isavuconazole, ravuconazole, albaconazole, and aminocandin.
- Analysis of available data from clinical trials, animal studies, and meeting abstracts.
Main Results:
- Investigational agents like isavuconazole and ravuconazole demonstrate broad-spectrum activity, including against resistant pathogens.
- These new drugs offer potential advantages such as extended half-lives, reduced drug interactions, and good tolerance.
- Current data is largely from early-phase human studies, animal models, or abstracts.
Conclusions:
- New antifungal agents show promise for treating challenging fungal infections.
- Further randomized clinical trials are essential to fully establish the efficacy and safety of these drugs.
- These investigational antifungals may offer solutions for resistant and emerging fungal pathogens.
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