Document is current

Article History

Received: 21 February 2026

Accepted: 24 April 2026

First Online: 22 May 2026

Declarations

:

: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Julia Feige received travel support, honoraria for presentations or participation on advisory boards from Novartis, Roche, Sanofi, Merck, and AbbVie. Tobias Moser received travel support, honoraria for presentations or participation on advisory boards from Biogen, BMS, Novartis, Roche, Sanofi, Merck, Stada, and Teva. Katja Akgün received personal compensation from Novartis, Biogen Idec, Teva, Sanofi, and Roche for consulting services. Tjalf Ziemssen reports scientific advisory board and/or consulting for Biogen, Roche, Novartis, Celgene, and Merck; compensation for serving on speaker´s bureaus for Roche, Novartis, Merck, Sanofi, Celgene, and Biogen; and research support from Biogen, Novartis, Merck, and Sanofi. Johann Sellner received travel support, honoraria for presentations or participation on advisory boards from Angelini, Eisai, Gerot-Lannach, Lundbeck, Neuraxpharm, Novartis, Roche, Sandoz, Schwabe, and Takeda. Kerstin Schwenker, and Wolfgang Hitzl have nothing to disclose. Johann Sellner is an editorial board member of Neurology and Therapy . Johann Sellner was not involved in the selection of peer reviewers for the manuscript nor any of the subsequent editorial decisions.

: The procedures performed in our study were conducted in accordance with the ethical standards of the institutional and/or national research committee, the 1964 Helsinki Declaration and its later amendments, or comparable ethical standards. All patients provided written informed consent for participation and subsequent publication of data after approval by the Ethics Committee of Bundesland Salzburg (415-E/161 2111-2018). The study was carried out according to the Helsinki protocol in its current version.