TY - JOUR AU - Brenner, Juliette AU - Bastiaansen, Anna E. M. AU - Guasp, Mar AU - Muñiz-Castrillo, Sergio AU - Iizuka, Takahiro AU - de Bruijn, Marienke A. A. M. AU - Muñoz-Lopetegi, Amaia AU - Martínez-Hernández, Eugenia AU - Picard, Géraldine AU - Vogrig, Alberto AU - Millot, Mathilde AU - Finke, Carsten AU - Geis, Christian AU - Lewerenz, Jan AU - Melzer, Nico AU - Prüss, Harald AU - Räuber, Saskia AU - Ringelstein, Marius AU - Rostàsy, Kevin AU - Sühs, Kurt-Wolfram AU - Thaler, Franziska S. AU - Wandinger, Klaus-Peter AU - Wurdack, Katharina AU - Crijnen, Yvette S. AU - Kerstens, Jeroen AU - van Steenhoven, Robin W. AU - Veenbergen, Sharon AU - Schreurs, Marco W. J. AU - van den Berg, Robert AU - Volovici, Victor AU - Neuteboom, Rinze F. AU - de Vries, Juna M. AU - Sillevis Smitt, Peter A. E. AU - Nagtzaam, Mariska M. P. AU - Franken, Suzanne C. AU - Ratuszny, Dominica AU - Menge, Til AU - Bertolini, Annikki AU - Bien, Christian AU - Berger, Robert AU - Tauber, Simone AU - Angstwurm, Klemens AU - Seifert-Held, Thomas AU - Kraft, Andrea AU - Klausewitz, Jaqueline AU - Ayzenberg, Ilya AU - Eisenhut, Katharina AU - Roessling, Rosa AU - Heiden, Martha AU - Kümpfel, Tania AU - Dalmau, Josep AU - Leypoldt, Frank AU - Honnorat, Jérôme AU - Titulaer, Maarten J. TI - Development and validation of the NEOS2 score for prediction of long-term outcomes and improvement after first-line immunotherapy in patients with anti-NMDAR encephalitis: an international cohort study JO - The lancet / Regional health. Europe VL - 62 SN - 2666-7762 CY - [Amsterdam] PB - Elsevier M1 - DZNE-2025-01431 SP - 101562 PY - 2026 N1 - Funding: This study was funded by Dioraphte (charity; project 2001 0403). AB - Background: Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is a severe disease that primarily affects young people and can improve with adequate treatment. We aimed to refine the anti-NMDAR Encephalitis One-year functional Status (NEOS) score by developing NEOS2, an updated model using readily available data at the time of diagnosis. We assessed the predictive value of the NEOS2-score for (1) improvement following first-line treatment, (2) functional outcome at one-year follow-up, and (3) resumption of school or work within three years. Methods: In this international (France, Germany, Japan, the Netherlands and Spain) cohort study in patients with a definite anti-NMDAR encephalitis diagnosis (according to the clinical criteria plus antibody testing in CSF), we performed logistic regression analyses to develop and validate multivariable models to predict -based upon variables available at diagnosis- short (ΔmRS two weeks after first-line treatment), middle (modified Rankin Scale [mRS] at one year), and long-term (return to school or work within three years) outcomes. We included clinical variables and biomarkers available at diagnosis. Findings: We included 702 patients (mean age 23 years, 95 LB - PUB:(DE-HGF)16 DO - DOI:10.1016/j.lanepe.2025.101562 UR - https://pub.dzne.de/record/283019 ER -