Abstract
We evaluated the potential correlation of the hematopoietic cell transplantation comorbidity index (HCT-CI) with the risk of developing post-transplant invasive fungal infections (IFIs). Between January 2009 and March 2015, 312 consecutive patients who received a first allograft entered the study. Low/intermediate HCT-CI risk score (0–2) was observed in 172/312 (55%), whereas high HCT-CI score (≥3) was seen in 140/312 (45%). Overall, 51/312 (16%) patients experienced IFI, defined as possible in 19 (6%), probable in 27 (9%), and proven in 5 (2%). Cumulative incidence of probable-proven IFI at 1 year was 8.5% with a significant higher incidence in patients with high HCT-CI (12%) vs. those with low-intermediate HCT-CI (5%; p = 0.006). There was a strong trend for a higher incidence of baseline severe pulmonary comorbidity in patients who developed probable-proven IFI (p = 0.051). One-year cumulative incidence of non-relapse mortality was higher in patients with IFI vs. those without, 49 and 16% (p < 0.001). By multivariate analysis, disease status at transplant and high HCT-CI, when combined with acute GVHD, were independently associated with the risk of post-transplant IFI. This study shows that a high HCT-CI predicts the risk of developing IFI and may indicate the need of mold-active antifungal prophylaxis in high-risk patients.
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Acknowledgements
This research was supported in part by Regione Piemonte: Ricerca Finalizzata 2008, 2009; Compagnia di San Paolo and Comitato Regionale Piemontese Gigi Ghirotti; Fondazione Neoplasie Sangue Onlus; Fondazione Cariplo (Grant per la Ricerca Biomedica 2015/0603 to BB). Our thanks to the nurses and medical staff for caring for the patients and to the data managers who collected the study and follow-up information.
Author contributions
AB and BB contributed to the initial conception and designed the study. AB, EM, MF, LB, CMD, SA, CF, SM, SB, GI, LG, and BB provided the study materials or patients. RS, MF, LB, and BB collected and assembled the data. RP performed statistical analyses. AB, BB, RP, MF, MS, FGDR (equally contributing author), and RS analyzed and interpreted the data. AB and BB wrote the manuscript. All authors gave the final approval to the manuscript.
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AB has received honoraria from Gilead Sciences, Merck, Pfizer Pharmaceuticals, Jazz Pharmaceuticals, and Basilea; he has been the speaker for Gilead Sciences, Merck, Pfizer Pharmaceuticals, Astellas Pharma, and Basilea. BB has received honoraria from Gilead, Pfizer, Celgene, Hospira, and research support form Celgene, Pierre Fabre, ADIENNE, Hospira Italia, MSD Italia. The The remaining authors declare that they have no conflict of interest.
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All procedures performed in the present study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Busca, A., Passera, R., Maffini, E. et al. Hematopoietic cell transplantation comorbidity index and risk of developing invasive fungal infections after allografting. Bone Marrow Transplant 53, 1304–1310 (2018). https://doi.org/10.1038/s41409-018-0161-1
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DOI: https://doi.org/10.1038/s41409-018-0161-1