RT Journal Article SR Electronic T1 Anti-CD20 therapies and pregnancy in neuroimmunologic disorders JF Neurology - Neuroimmunology Neuroinflammation JO Neurol Neuroimmunol Neuroinflamm FD Lippincott Williams & Wilkins SP e913 DO 10.1212/NXI.0000000000000913 VO 8 IS 1 A1 Tania Kümpfel A1 Sandra Thiel A1 Ingrid Meinl A1 Andrea I. Ciplea A1 Antonios Bayas A1 Frank Hoffmann A1 Ulrich Hofstadt-van Oy A1 Muna Hoshi A1 Jakob Kluge A1 Marius Ringelstein A1 Orhan Aktas A1 Muriel Stoppe A1 Annette Walter A1 Martin S. Weber A1 Ilya Ayzenberg A1 Kerstin Hellwig YR 2021 UL http://nn.neurology.org/content/8/1/e913.abstract AB Objective To report pregnancy outcomes and disease activity (DA) in women with MS, neuromyelitis optica spectrum disorders (NMOSDs), and other neuroimmunologic diseases (ONID) after treatment with rituximab (RTX)/ocrelizumab (OCR) 12 months before or during pregnancy.Methods Data were collected in the German MS and pregnancy registry and centers from the Neuromyelitis Optica Study Group. Sixty-eight known outcomes of 88 pregnancies from 81 women (64 MS, 10 NMOSD, and 7 ONID) were included and stratified in 3 exposure groups: >6M-group = RTX/OCR >6 but ≤12 months before the last menstrual period (LMP) (n = 8); <6M group = RTX/OCR <6 months before the LMP (n = 47); preg group = RTX/OCR after the LMP (n = 13).Results Pregnancy outcomes were similar between groups, but significantly more preterm births (9.8% vs 45%) occurred after exposure during pregnancy. Overall, 2 major congenital abnormalities (3.3%), both in the preg group, were observed. Three women had severe infections during pregnancy. All women with MS (35) and 12/13 women with NMOSD, RTX/OCR exposure before the LMP and known pregnancy outcomes after gestational week 22 were relapse free during pregnancy. Five of 29 (17.2%) women with relapsing-remitting MS (RRMS) and 1 of 12 (8.3%) with NMOSD and at least 6 months postpartum follow-up experienced a relapse postpartum. Duration of RTX/OCR and early retreatment but not detection of B-cells were possible predictors for postpartum relapses in patients with RRMS/NMOSD.Conclusions Although RTX/OCR might be an interesting option for women with RRMS/NMOSD who plan to become pregnant to control DA, more data on pregnancy outcomes and rare risks are needed.CA=congenital anomalies; DA=disease activity; DMT=disease-modifying therapy; EA=elective abortion; EDSS=Expanded Disability Status Scale; GW=gestational week; LMP=last menstrual period; mAb=monoclonal antibody; NEMOS=Neuromyelitis Optica Study Group; NMOSD=neuromyelitis optica spectrum disorder; OCR=ocrelizumab; ONID=other neuroimmunologic diseases; RRMS=relapsing-remitting MS; RTX=rituximab; SA=spontaneous abortion