Updates are available Correction dated 2022-05-17

Article History

Received: 9 September 2021

Accepted: 31 October 2021

First Online: 24 November 2021

Change Date: 17 May 2022

Change Type: Correction

Change Details: A Correction to this paper has been published:

Change Details: https://doi.org/10.1186/s10194-022-01423-x

Declarations

:

: As part of the original study, all participants provided written informed consent, and the trial was approved by all relevant review bodies. Because the subgroup analyses used existing data from the primary study, additional consent was not required.

: Not applicable.

: S.J.N. has received honoraria for consulting from Allergan/AbbVie, Amgen/Novartis, Axsome, BioDelivery Sciences, Biohaven, Eli Lilly, Fenix Group International, Impel, Nesos Corp (formerly Vorso Corp), and Teva Pharmaceuticals. S.J.N. has received honoraria for speaking from Allergan/AbbVie, Amgen/Novartis, Eli Lilly, and Teva Pharmaceuticals. S.J.N. has received honoraria for work in education or publishing from the American Academy of Neurology, the American Headache Society, Evolve Med Ed, the Massachusetts Medical Society, MedLink Neurology, MJH Life Sciences, NACCME, Neurology Learning Network, Pennsylvania Neurologic Society, Springer, WebMD/Medscape, and Wolters-Kluwer. S.J.N. has received legal fees for serving as a medical expert to Jackson & Campbell. J.M.C. is a former employee of Teva Pharmaceuticals. X.N., L.J., V.R.C., and L.J.K. are employees of Teva Pharmaceuticals. D.H.-L. has no competing interests. D.K. has served as an advisor to Alder, Amgen, and Eli Lilly and has received research support from Alder, Allergan, Amgen, CoLucid-Eli Lilly, Genentech, Teva Pharmaceuticals, VM Biopharma, and Zosano. C.L. has received personal fees from Allergan, Eli Lilly, Novartis, and Teva Pharmaceuticals; has participated in clinical trials as a principal investigator for Novartis and Teva Pharmaceuticals; and has no ownership interest and does not own stocks in any pharmaceutical company.