“P097 | SEQUENTIAL MACHINE LEARNING MODELS FOR PREDICTING ONABOTULINUMTOXINA RESPONSE IN CHRONIC MIGRAINE: A COHORT STUDY: G. Vigani1, M. Romozzi2|3, A. Burgalassi1, A. Lokhawandala4, C. Vollono2|3, P. Calabresi2|3, F. Tascedda5, A. Chiarugi1|6, F. De Cesaris1, L. Francesco Iannone7 | 1Headache Center and Clinical Pharmacology Unit, Careggi University Hospital, Florence, Italy; 2Dipartimento Universitario di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Italy; 3Neurologia, Dipartimento di neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy; 4Drexel University, Philadelphia, USA; 5Department of Life Sciences, University of Modena and Reggio Emilia, Italy; 6Section of Clinical Pharmacology and Oncology, Department of Health Sciences, University of Florence, Italy; 7Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Italy” (2026) Confinia Cephalalgica, 36(s1). doi:10.4081/cc.2026.16053.