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Updated: Jun 5, 2025

An Ex vivo Assay to Study Candida albicans Hyphal Morphogenesis in the Gastrointestinal Tract
Published on: July 1, 2020
Invasive Fungal Disease in Patients Undergoing Allogeneic Hematopoietic Stem Cell Transplantation in China: A
Chuan Li1, Dan-Ping Zhu1, Jia Chen2
1Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China.
Background:
This study (China Assessment of Antifungal Therapy in Hematological Diseases [CAESAR 2.0]) aimed to provide updated epidemiological data on invasive fungal disease (IFD) in patients undergoing allogeneic hematopoietic stem cell transplantation (allo-HSCT).
Methods:
This multicenter, real-world, observational study was conducted at 12 allo-HSCT centers in China between January and December 2021. Consecutive adult patients (aged ≥18 years) who underwent allo-HSCT with antifungal prophylaxis were included. IFD was diagnosed according to the 2019 criteria of the European Organization for Research and Treatment of Cancer and Mycoses Study Group (EORTC/MSG). Follow-up was completed by 31 December 2022.
Results:
A total of 2015 patients were included. Mold-active antifungal prophylaxis was used in 76.08%, most of whom received voriconazole (44.37%) or posaconazole (31.71%). The cumulative incidence of IFD (proven or probable) 1 year after allo-HSCT was 6.3%. Pathogens were identified in 47.97% of IFD cases and mainly included Candida spp. (17.89%), Mucorales (13.01%), Aspergillus spp. (8.94%), and Pneumocystis jirovecii (6.5%). Multivariate analysis identified the following factors associated with IFD: disease at advanced stage (hazard ratio, 2.55 [95% confidence interval, 1.58-4.12]; P < .001), absolute neutrophil count engraftment (≤28 days) (0.37 [15-.92]; P = .03), platelet engraftment (≤28 days) (0.41 [.27-.62]; P < .001), and acute graft-vs-host disease grade III-IV (2.97 [1.97-4.49]; P < .001). The IFD-attributable mortality rate was 48.28%.
Conclusions:
Despite the widespread use of mold-active prophylaxis, the risk of IFD after allo-HSCT remains high. The most common pathogens are Candida spp., Mucorales, Aspergillus spp., and P. jirovecii.

