“OC01 | DECODING THE BIOCHEMICAL SIGNATURE OF TREATMENT-RESISTANT MIGRAINE: SEARCHING FOR DISEASE PHENOTYPES AND NOVEL THERAPEUTIC TARGETS: B. Agostini1|2, R. Greco2, G. Vaghi1|2, V. Grillo1|2, M. Corrado2, F. Cammarota1|2, C. Angeli1|2, F. Muscariello1|2, M. Giraudo1|2, M. Allena2, E. Guaschino2, N. Ghiotto2, C. Demartini2, M. Francavilla1|2, S. Facchetti1|2, V. Franco2|3, G. Sances2, C. Tassorelli1|2, R. De Icco1|2 | 1Department of Brain and Behavioral Sciences, University of Pavia, Italy; 2Headache Science and Neurorehabilitation Unit, IRCCS Mondino Foundation, Pavia, Italy; 3Department of Internal Medicine and Therapeutics, University of Pavia, Italy” (2026) Confinia Cephalalgica, 36(s1). doi:10.4081/cc.2026.15939.