Abstract
The objective of the study was the analysis of clinical types, outcomes, and risk factors associated with the outcome of adenovirus (ADV) infection, in children and adults after allo-HCT. A total number of 2529 patients (43.9% children; 56.1% adults) transplanted between 2000 and 2022 reported to the EBMT database with diagnosis of ADV infection were analyzed. ADV infection manifested mainly as viremia (62.6%) or gastrointestinal infection (17.9%). The risk of 1-year mortality was higher in adults (p = 0.0001), and in patients with ADV infection developing before day +100 (p < 0.0001). The 100-day overall survival after diagnosis of ADV infections was 79.2% in children and 71.9% in adults (p < 0.0001). Factors contributing to increased risk of death by day +100 in multivariate analysis, in children: CMV seropositivity of donor and/or recipient (p = 0.02), and Lansky/Karnofsky score <90 (p < 0.0001), while in adults: type of ADV infection (viremia or pneumonia vs gastrointestinal infection) (p = 0.0004), second or higher HCT (p = 0.0003), and shorter time from allo-HCT to ADV infection (p = 0.003). In conclusion, we have shown that in patients infected with ADV, short-term survival is better in children than adults. Factors directly related to ADV infection (time, clinical type) contribute to mortality in adults, while pre-transplant factors (CMV serostatus, Lansky/Karnofsky score) contribute to mortality in children.
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Data availability
Data represent the results of registry-based study of patients with documented ADV infection. No personal data are included. With the retrospective registry-based design of the study, no ethical review board approval was necessary. The data set remains the property of EBMT. It can be available upon reasonable request to the corresponding author.
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JS, MM – design of the study; NK, LW, GT – preparing database; GT – statistical analysis, tables, and figures; JS – writing manuscript; JS, MM, DA, SC, LG, PL, RdlC – analysis and critical revision of the paper; all authors – providing clinical data, revision, and final approval of the paper.
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MM reports lecture fees and board meeting fees from Allovir, bioMérieux, Gilead, Janssen, Moderna, Mundipharma, Pfizer, all outside the submitted work. JAS declares consultancy for Medac, Jazz, Vertex, and Kiadis Pharma in previous 24 months. All other authors declared no conflict of interest.
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The study was conducted in accordance with the EBMT Guidelines for Retrospective Studies and the principles of the Declaration of Helsinki. EBMT centres commit to obtain informed consent with the local regulations applicable at the time of transplantation in order to report pseudoanonymised data to the EBMT.
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Styczynski, J., Tridello, G., Knelange, N. et al. Adenovirus infections after allogeneic hematopoietic cell transplantation in children and adults: a study from the Infectious Diseases Working Party of the European Society for Blood and Marrow Transplantation. Bone Marrow Transplant 59, 1402–1412 (2024). https://doi.org/10.1038/s41409-024-02361-9
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DOI: https://doi.org/10.1038/s41409-024-02361-9