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Updated: Aug 5, 2026

Live Imaging of Antifungal Activity by Human Primary Neutrophils and Monocytes in Response to A. fumigatus
Published on: April 19, 2017
Voriconazole (Pfizer ltd)
P E Verweij1, B E de Pauw, J F Meis
1Departments of Medical Microbiology and Hematology, University Hospital Nijmegen, The Netherlands. p.verweij@mmb.azn.nl
Abstract:
Voriconazole is undergoing phase III trials by Pfizer as a potential treatment for resistant systemic aspergillosis, candidosis and other emerging fungal infections seen in immunocompromised patients [201603,320737]. The compound demonstrated efficacy in patients in whom amphotericin had failed to control infection [167646]. Voriconazole is effective and well-tolerated in the treatment of neutropenic patients with acute invasive aspergillosis [187877], non-neutropenic patients with chronic invasive aspergillosis [187878] and HIV patients with oropharyngeal candidiasis [187866]. Clinical efficacy in these trials was at least 69%. In vitro studies presented at the Ninth European Congress of Clinical Microbiology and Infectious Diseases (Germany, 1999) showed the compound to be the most active in a series of comparator agents against certain Scedosporium species [320536]. Pfizer claims that the compound has an extended spectrum of activity compared to Diflucan. Voriconazole is claimed to be effective against yeast and mould infections and can thus be applied against infections of the eye and brain [322370]. In December 1998, Morgan Stanley Dean Witter predicted sales of US$60 million in 2001, rising to US$175 million in 2005 [315350].
Insights
Voriconazole shows promise as a treatment for invasive fungal infections, including aspergillosis and candidiasis, particularly in immunocompromised patients. Clinical trials indicate significant efficacy, even when other antifungals have failed.
Area of Science:
- Mycology
- Infectious Diseases
- Pharmacology
Background:
- Emerging fungal infections pose a significant threat to immunocompromised individuals.
- Voriconazole is a novel antifungal agent developed by Pfizer.
- Existing treatments like amphotericin have limitations in efficacy and tolerability.
Purpose of the Study:
- To evaluate the efficacy and tolerability of voriconazole in treating various fungal infections.
- To compare voriconazole's activity against other antifungal agents.
- To assess voriconazole's potential in treating infections caused by resistant fungal strains.
Main Methods:
- Phase III clinical trials involving immunocompromised patients with aspergillosis and candidiasis.
- In vitro studies comparing voriconazole's activity against comparator agents.
- Analysis of clinical efficacy data from patient trials.
Main Results:
- Voriconazole demonstrated clinical efficacy of at least 69% in trials.
- The compound was effective in patients who did not respond to amphotericin B.
- In vitro studies showed voriconazole to be highly active against certain Scedosporium species.
Conclusions:
- Voriconazole is effective and well-tolerated for treating invasive aspergillosis and candidiasis in various patient populations.
- The drug exhibits an extended spectrum of activity compared to existing treatments.
- Voriconazole holds potential for treating serious fungal infections affecting the eye and brain.
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