Related Experiment Video
Updated: May 20, 2026

An Ex vivo Assay to Study Candida albicans Hyphal Morphogenesis in the Gastrointestinal Tract
Published on: July 1, 2020
The PATH (Prospective Antifungal Therapy) Alliance® registry and invasive fungal infections: update 2012
Nkechi Azie1, Dionissios Neofytos, Michael Pfaller
1Astellas Pharma Global Development, Deerfield, IL 60015, USA. Nkechi.Azie@us.astellas.com
Abstract:
The Prospective Antifungal Therapy Alliance (PATH Alliance®) performed prospective surveillance of invasive fungal infections (IFIs) among patients hospitalized at 25 medical centers in North America between 2004 and 2008, collecting information on the epidemiology, diagnosis, treatment, and mortality rates of IFIs. In total, 7526 IFIs were identified in 6845 patients. Candida spp. (73.4%) were the most common pathogens, followed by Aspergillus spp. (13.3%), and other yeasts (6.2%). Culture was the most frequently used diagnostic test in the majority of IFI categories. Most patients with invasive candidiasis were treated with fluconazole (48.3%) and the echinocandins (34.0%), while voriconazole (45.5%) was the main antifungal agent for invasive aspergillosis. The 12-week survival rate ranged from 37.5% for hematopoietic stem cell transplant recipients to ~75.0% for those with HIV/AIDS. In summary, the findings of the PATH Alliance® registry provide a better understanding of the epidemiology of a vast variety and large numbers of IFIs.
Insights
This study tracked invasive fungal infections (IFIs) in North America, finding Candida and Aspergillus as primary culprits. Treatment varied by infection type, with survival rates differing significantly across patient groups.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Epidemiology
Background:
- Invasive fungal infections (IFIs) pose a significant threat to hospitalized patients.
- Understanding the epidemiology and treatment patterns of IFIs is crucial for improving patient outcomes.
Purpose of the Study:
- To prospectively surveil IFIs in North American medical centers.
- To collect data on IFI epidemiology, diagnosis, treatment, and mortality.
Main Methods:
- Prospective surveillance across 25 medical centers from 2004-2008.
- Identification and characterization of 7526 IFIs in 6845 patients.
- Analysis of diagnostic methods and antifungal treatment regimens.
Main Results:
- Candida spp. (73.4%) and Aspergillus spp. (13.3%) were the most common pathogens.
- Culture was the primary diagnostic method.
- Fluconazole and echinocandins were common for candidiasis; voriconazole for aspergillosis.
- 12-week survival ranged from 37.5% (HSCT recipients) to ~75.0% (HIV/AIDS patients).
Conclusions:
- The PATH Alliance® registry provides comprehensive data on IFI epidemiology.
- Findings highlight the need for tailored treatment strategies based on fungal species and patient population.
- Survival rates underscore the severity of IFIs in immunocompromised individuals.
Related Concept Videos
Antifungal Agents
Healthcare Associated Infections II: Preventive Measures
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
Endocarditis III: Medical Management
Urinary Tract Infection II: Pathophysiology
Antimicrobial Effectiveness
