PT - JOURNAL ARTICLE AU - Ruth Dobson AU - David Rog AU - Caroline Ovadia AU - Katy Murray AU - Stella Hughes AU - Helen L Ford AU - Owen R Pearson AU - Sarah White AU - Nicola Bonham AU - Joela Mathews AU - Catherine Nelson-Piercy AU - Peter Brex TI - Anti-CD20 therapies in pregnancy and breast feeding: a review and ABN guidelines AID - 10.1136/pn-2022-003426 DP - 2023 Feb 01 TA - Practical Neurology PG - 6--14 VI - 23 IP - 1 4099 - http://pn.bmj.com/content/23/1/6.short 4100 - http://pn.bmj.com/content/23/1/6.full SO - Pract Neurol2023 Feb 01; 23 AB - Neurologists increasingly use anti-CD20 therapies, including for women of childbearing age, despite these medications being unlicensed for use in pregnancy. Current evidence suggests that women can safely conceive while taking anti-CD20 therapy. Women should not be denied treatment during pregnancy when it is clinically indicated, although they should be counselled regarding live vaccinations for their infant. Women receiving regular ocrelizumab for multiple sclerosis should preferably wait 3 months before trying to conceive. There are few data around ofatumumab in pregnancy, and while there is probably a class effect across all anti-CD20 therapies, ofatumumab may need to be continued during pregnancy to maintain efficacy. We recommend that anti-CD20 therapies can be safely given while breast feeding. It is important to make time to discuss treatments with women of childbearing age to help them choose their most suitable treatment. Outcomes should be monitored in pregnancy registries.Data sharing not applicable as no datasets generated and/or analysed for this study.