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Scoring system for clinically significant CMV infection in seropositive recipients following allogenic hematopoietic cell transplant: an SFGM-TC study

Abstract

In order to identify cytomegalovirus (CMV)-seropositive patients who are at risk of developing CMV infection following first allogeneic hematopoietic cell transplantation (allo-HCT), we built up a scoring system based on patient/donor characteristics and transplantation modalities. To this end, 3690 consecutive patients were chronologically divided into a derivation cohort (2010–2012, n = 2180) and a validation cohort (2013–2014, n = 1490). Haploidentical donors were excluded. The incidence of first clinically significant CMV infection (CMV disease or CMV viremia leading to preemptive treatment) at 1, 3, and 6 months in the derivation cohort was 13.8%, 38.5%, and 39.6%, respectively. CMV-seropositive donor, unrelated donor (HLA matched 10/10 or HLA mismatched 9/10), myeloablative conditioning, total body irradiation, antithymocyte globulin, and mycophenolate mofetil significantly and independently affected the incidence of 3-month infection. These six factors were selected to build up the prognostic model. Four risk groups were defined: low, intermediate-low, intermediate-high, and high-risk categories, with a 3-month predicted incidence of first clinically significant CMV infection in the derivation cohort of 22.2%, 31.1%, 45.4%, and 56.9%, respectively. This score represents a framework for the evaluation of patients who are at risk of developing clinically significant CMV infection following allo-HCT. Prospective studies using this score may be of benefit in assessing the value of anti-CMV prophylaxis in well-defined patient cohorts.

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Fig. 1: Flowchart of the patient selection process for the derivation and validation cohorts.
Fig. 2: Observed and predicted cumulative incidence curves for the first clinically significant CMV infection in the derivation cohort.

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Acknowledgements

The authors would like to thank Nicole Raus, the SFGM-TC data manager. The authors wish to acknowledge all our medical teams for their dedication and involvement in daily patient care. A special thanks to Dr. Martine Lenoble for her help in writing and proofreading this article.

Funding

This study was supported in part by a research grant from Biotest.

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DB, ED, AD, and IY-A designed the study, reviewed the data, analyzed results, and made the figures. All authors wrote and approved the manuscript.

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Correspondence to Ibrahim Yakoub-Agha.

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IY-A received honorarium from MSD and Biotest, both are selling anti-CMV drugs. The other authors have no conflicts of interest to declare.

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Beauvais, D., Drumez, E., Blaise, D. et al. Scoring system for clinically significant CMV infection in seropositive recipients following allogenic hematopoietic cell transplant: an SFGM-TC study. Bone Marrow Transplant 56, 1305–1315 (2021). https://doi.org/10.1038/s41409-020-01178-6

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