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. 2024 Jul 23;8(14):3813-3822.
doi: 10.1182/bloodadvances.2024012922.

Incidence and outcomes of cytomegalovirus reactivation after chimeric antigen receptor T-cell therapy

Affiliations

Incidence and outcomes of cytomegalovirus reactivation after chimeric antigen receptor T-cell therapy

Rick Y Lin et al. Blood Adv. .

Abstract

Cytomegalovirus (CMV) reactivation is a major complication among seropositive allogeneic hematopoietic cell transplantation recipients; however, data on CMV reactivation after chimeric antigen receptor (CAR) T-cell therapy are limited. We report the incidence and outcomes of 95 adult CMV-seropositive patients who received CAR T-cell therapy between February 2018 and February 2023. CMV outcomes were CMV reactivation (any viremia) and clinically significant CMV infection (cs-CMV). Thirty-one patients (33%) had evidence of CMV reactivation (any viremia), and 10 patients (11%) had cs-CMV. The median time from CAR T-cell infusion to CMV reactivation was 19 days (interquartile range [IQR], 9-31). The cumulative incidence of CMV (any viremia) was significantly higher among patients with grade 3 to 4 cytokine release syndrome (67 vs 28%; P = .01), and those who received corticosteroids (39 vs 21%; P = .03), anakinra (56 vs 28%; P = .02), or ≥2 immunosuppressants (41 vs 21%; P = .02). Receipt of corticosteroids (18 vs 0%; P = .004), tocilizumab (14 vs 0%; P = .04), anakinra (33 vs 7%; P = .008), and ≥2 immunosuppressants (20 vs 0%; P = .001) were all associated with cs-CMV. Receiving ≥2 immunosuppressants was associated with a twofold increase in CMV reactivation in multivariate analyses (adjusted odds ratio [aOR], 2.27; 95% confidence interval, 1.1-4.8; P = .03). Overall, the 1-year mortality was significantly higher in those with CMV reactivation (57% vs 23%; P = .001). Immunosuppression, particularly with corticosteroids, for the management of CAR T-cell toxicities, is a major risk factor for CMV reactivation.

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Conflict of interest statement

Conflict-of-interest disclosure: M.I.M received funding from Eurofins Viracor. The remaining authors declare no competing financial interests.

Figures

None
Graphical abstract
Figure 1.
Figure 1.
Increased risk of CMV reactivation in CAR T-cell therapy recipients receiving immunosuppression. (A) The 180-day incidence of CMV reactivation (any viremia) in the entire cohort. (B-G) The 180-day incidence of CMV reactivation (any viremia) by (B) degree of CRS, (C) corticosteroid use, (D) tocilizumab use, (E) use of ≥2 immunosuppressants, (F) anakinra use, and (G) degree of ICANS. The number of subjects was 94.
Figure 2.
Figure 2.
Increased risk of clinically significant CMV reactivation in CAR T-cell therapy recipients receiving immunosuppression. (A) The 180-day incidence of clinically significant CMV reactivation in the entire cohort. (B-G) The 180-day incidence of clinically significant CMV reactivation in patients receiving CAR T-cell therapy by (B) degree of CRS, (C) corticosteroid use, (D) tocilizumab use, (E) use of ≥2 immunosuppressants, (F) anakinra use, and (G) degree of ICANS. The number of subjects was 94.
Figure 3.
Figure 3.
CAR T-cell outcomes by CMV reactivation. (A) 1-year overall mortality, (B) 1-year nonrelapsed mortality, and (C) 1-year progression/relapse rates after CAR T-cell therapy among patients with no CMV reactivation and those with CMV reactivation by day 28. The number of subjects was 95.

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