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. 2023 Mar 16;24(1):26. doi: 10.1186/s10194-023-01560-x

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© The Author(s) 2023

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 2 — Identification of a galcanezumab responder. Patient’s e-diary entry data were used to compute percentage of monthly migraine and headache days during the 1-month pre-treatment period and the 3-month treatment period. Daily documentation of headache intensity, laterality, throbbing, photophobia, phonophobia, and nausea were used to distinguish between headache and migraine days. Note that the percentage of monthly migraine days (MMD) decreased by > 50% during the treatment period (from 47% before treatment to 18.6% during the 3 months of treatment)