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Published in: The Journal of Headache and Pain 1/2022

Open Access 01-12-2022 | Migraine | Research

Erenumab versus topiramate: post hoc efficacy analysis from the HER-MES study

Authors: Marc Ehrlich, Christian Hentschke, Christian Sieder, Monika Maier-Peuschel, Uwe Reuter

Published in: The Journal of Headache and Pain | Issue 1/2022

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Abstract

Objective

HER-MES was the first head-to-head, phase 4 trial to assess the tolerability and effectiveness of erenumab against standard of care treatment (topiramate). This post hoc analysis compared the efficacy of erenumab with topiramate in patients who completed the trial on study medication.

Methods

Post hoc sensitivity analysis was performed using the full analysis set. Outcomes assessed included the proportion of patients with a ≥50% reduction in monthly migraine days (MMD) from baseline (50% responder rate), over the last 3 months (months 4, 5, and 6) of the double-blind treatment phase (DBTP), the 50% responder rate during the first month of the DBTP, and change from baseline in MMD during the DBTP. Multiple imputation was done for efficacy values of patients who discontinued study treatment.

Results

Patients (N = 777) were randomly assigned (1:1) to either 70 or 140 mg/month erenumab (N = 389) or 50–100 mg/day topiramate (N = 388). Of these, 334 patients (85.9%) receiving erenumab, and 231 patients (59.5%) receiving topiramate completed the DBTP on study medication. Patients on study medication until the end of the DBTP received a mean dose of 119 mg/month for erenumab and 92 mg/day for topiramate. At month 1, a significantly greater proportion of patients receiving erenumab (39.2%) reported ≥50% reduction in MMD from baseline compared with those receiving topiramate (24.0%; p < 0.001). In the last 3 months, a significantly larger proportion of patients receiving erenumab (60.3%) achieved ≥50% reduction in MMD from baseline compared with those receiving topiramate (43.3%; p < 0.001). Patients receiving erenumab demonstrated significantly greater reductions in MMD during the last 3 months from baseline versus those receiving topiramate (− 6.13 vs − 4.90; 95% CI: − 1.87 to − 0.61; p < 0.001).

Conclusions

This post hoc analysis demonstrated significantly superior efficacy of erenumab versus topiramate in achieving a ≥50% reduction in MMD with an early onset of efficacy.

Trial registration

ClinicalTrials.gov NCT03828539.
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Metadata
Title
Erenumab versus topiramate: post hoc efficacy analysis from the HER-MES study
Authors
Marc Ehrlich
Christian Hentschke
Christian Sieder
Monika Maier-Peuschel
Uwe Reuter
Publication date
01-12-2022
Publisher
Springer Milan
Published in
The Journal of Headache and Pain / Issue 1/2022
Print ISSN: 1129-2369
Electronic ISSN: 1129-2377
DOI
https://doi.org/10.1186/s10194-022-01511-y

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