Ocrelizumab use before pregnancy and neonatal B-cell depletion: A case report

Résumé fourni par la source

Ocrelizumab is a recombinant humanized IgG1 monoclonal antibody that depletes B lymphocytes by binding their surface antigen CD20 and is approved for the relapsing forms of multiple sclerosis (MS). Several studies report that in utero exposure to ocrelizumab is not associated with an increased risk of malformations, and very few cases of neonatal B-cell count depletion are described after therapy ending shortly before conception or during early pregnancy. We report the first case of transient and complete neonatal B-cell depletion, while conception took place 3 months after the last administration.

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