Published in:
19-07-2023 | Migraine | Original Communication
Retreating migraine patients in the second year with monoclonal antibodies anti-CGRP pathway: the multicenter prospective cohort RE-DO study
Authors:
Fabrizio Vernieri, Nicoletta Brunelli, Simona Guerzoni, Luigi Francesco Iannone, Carlo Baraldi, Renata Rao, Francesca Schiano di Cola, Raffaele Ornello, Sabina Cevoli, Carlo Lovati, Maria Albanese, Armando Perrotta, Ilaria Cetta, Sergio Soeren Rossi, Valentina Taranta, Massimo Filippi, Pierangelo Geppetti, Simona Sacco, Claudia Altamura
Published in:
Journal of Neurology
|
Issue 11/2023
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Abstract
Background
The outcome of migraine patients retreated with monoclonal antibodies (mAbs) targeting the calcitonin gene-related peptide (anti-CGRP) or its receptor (anti-CGRPr) is not completely known.
Methods
This multicentric prospective observational cohort study assessed monthly migraine days (MMDs), migraine acute medication intake (MAMI), and HIT-6 at baseline, after 90–112 days (Rev-1), after 84–90 days since Rev-1 (Rev-2) and 30 days after the last injection of anti-CGRP/CGRPr mAbs (Year-end), in the first and the second year after a discontinuation period.
Results
We enrolled 226 patients (79.6% with chronic migraine; 55.3% on erenumab and 44.7% on galcanezumab or fremanezumab). MMDs, MAMI, and HIT-6—did not differ at the respective first and second-year evaluations in the entire cohort, and comparing anti-CGRP with anti-CGRPr Abs. MMDs (18.1 ± 7.8 vs. 3.4 ± 7.8), MAMI (26.7 ± 28.3 vs.17.7 ± 17.2), and HIT-6 scores (63.1 ± 5.9 vs. 67.1 ± 10.3) were lower in the second year than in the pre-treatment baseline (consistently, p < 0.0001). Second-year baseline MMDs were lower in patients on anti-CGRP mAbs (p = 0.001) and with lower pre-treatment baseline MMDs (p ≤ 0.001).
Conclusion
Anti-CGRP/CGRPr mAbs are effective in the second as in the first year. The use of anti-CGRP or CGRPr mAbs influenced the second-year baseline MMDs, but their effectiveness did not differ during the two treatment years.