1. Establishing Correlates of Maternal-Fetal Cytomegalovirus Transmission—One Step Closer Through Predictive Modeling.
- Author
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Marchant, Arnaud, Adali, Sancar, Alsdurf, Hannah, Bol, Vanesa, Capelle, Xavier, Schrevel, Nathalie De, Delroisse, Jean-Marc, Devlieger, Roland, Dieussaert, Ilse, Donner, Catherine, Janssens, Michel, Loquet, Philip, Panackal, Anil A, Seidl, Claudia, Berg, Robert A van den, and Paris, Robert
- Subjects
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CLINICAL trial registries , *IMMUNOGLOBULIN G , *VIRAL load , *INFECTION , *CYTOMEGALOVIRUS diseases - Abstract
Background Determinants of maternal-fetal cytomegalovirus (CMV) transmission and factors influencing the severity of congenital CMV (cCMV) infection are not well understood. Methods We conducted a descriptive, multicenter study in pregnant women ≥18 years old with primary CMV infection and their newborns to explore maternal immune responses to CMV and determine potential immunologic/virologic correlates of cCMV following primary infection during pregnancy. We developed alternative approaches looking into univariate/multivariate factors associated with cCMV, including a participant clustering/stratification approach and an interpretable predictive model–based approach using trained decision trees for risk prediction (post hoc analyses). Results Pregnant women were grouped in 3 distinct clusters with similar baseline characteristics, particularly gestational age at diagnosis. We observed a trend for higher viral loads in urine and saliva samples from mothers of infants with cCMV versus without cCMV. When using a trained predictive-model approach that accounts for interaction effects between variables, anti-pentamer immunoglobulin G antibody concentration and viral load in saliva were identified as biomarkers jointly associated with the risk of maternal-fetal CMV transmission. Conclusions We identified biomarkers of CMV maternal-fetal transmission. After validation in larger studies, our findings will guide the management of primary infection during pregnancy and the development of vaccines against cCMV. Clinical Trials Registration NCT01251744. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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