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dc.contributor.authorRød, Brit Ellen
dc.contributor.authorTorkildsen, Øivind
dc.contributor.authorMyhr, Kjell-Morten
dc.contributor.authorBø, Lars
dc.contributor.authorWergeland, Stig
dc.date.accessioned2022-09-30T11:14:18Z
dc.date.available2022-09-30T11:14:18Z
dc.date.created2022-09-28T13:32:43Z
dc.date.issued2022
dc.identifier.issn0022-3050
dc.identifier.urihttps://hdl.handle.net/11250/3022864
dc.description.abstractBackground There are limited data on the safety of breast feeding during rituximab therapy. Our objective is to determine exposure from breast feeding and biological effects of rituximab in breastfed infants. Methods In our case series of six mother–infant pairs, the nursing mothers with relapsing-remitting multiple sclerosis received rituximab during breast feeding. As part of clinical follow-up, six serial breast milk samples, and blood samples from both mothers and infants, were collected and analysed. Results The median average rituximab concentration (Cavg) in breast milk was 0.04 µg/mL and the estimated relative infant dose (RID) was 0.07%. The highest measured concentration of rituximab in the breast milk samples was 0.25 µg/mL, giving an estimated RID of 0.26%. All infant serum rituximab concentrations were below 0.01 µg/mL. The CD19 +B cell count values were within the 10th– 90th percentiles of reported normal ranges in healthy infants. Conclusions We found minimal transfer of rituximab into breast milk and could not reliably detect levels of rituximab in infant serum. B cell counts in infants were unaffected.en_US
dc.language.isoengen_US
dc.publisherBMJen_US
dc.rightsNavngivelse-Ikkekommersiell 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/deed.no*
dc.titleSafety of breast feeding during rituximab treatment in multiple sclerosisen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2022 The Author(s)en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.doi10.1136/jnnp-2022-329545
dc.identifier.cristin2056388
dc.source.journalJournal of Neurology, Neurosurgery and Psychiatryen_US
dc.identifier.citationJournal of Neurology, Neurosurgery and Psychiatry. 2022.en_US


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Navngivelse-Ikkekommersiell 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse-Ikkekommersiell 4.0 Internasjonal