Why a good result of migraine treatment may not be good enough

High standards of migraine care, defined as optimal disease control or even migraine freedom, were achieved in a real-world setting with anti-CGRP monoclonal antibodies in approximately 40% of individuals with a high migraine burden. Over a quarter of patients who were considered ‘insufficiently controlled’ achieved a ≥50% response.

In a position statement, the International Headache Society (IHS) recently advocated for raising the standards of migraine prevention by proposing new treatment goals for migraine prevention in the real-world setting [1]. In the newly defined IHS treatment goals, a ≥50% reduction in monthly migraine days can still rate as ‘insufficient control’. Dr Edoardo Caronna (Vall d’Hebron University Hospital, Spain) presented results of the first study assessing the proportion of individuals achieving the new IHS treatment goals after 6 months of treatment with anti-CGRP monoclonal antibodies [2]. These treatment goals were categorised as follows:

• migraine freedom (0 days with migraine or moderate-to-severe headache);
• optimal control (≤4 days with migraine or moderate-to-severe headache);
• modest control (5-6 days with migraine or moderate-to-severe headache);
• insufficient control (>6 days with migraine or moderate-to-severe headache).

Dr Caronna and colleagues assessed the proportion of participants in the EUREkA-cohort in each treatment goal category after 6 months. EUREkA is a European multicenter, prospective, real-world study of adult patients with migraine who are treated with anti-CGRP monoclonal antibodies. There were 4,963 participants with 6 months of data available.

After 6 months of treatment, 342 (6.9%) had migraine freedom, 1,589 (32.0%) had optimal control, 771 (15.5%) had modest control, and 2,261 (45.6%) had insufficient control. All in all, 1,931 (38.9%) had ≤4 days with migraine or moderate-to-severe headache after 6 months of treatment. In the insufficient control group, 613 (27.1%) had a ≥50% reduction in monthly headache days. “These patients have such a high baseline number of monthly migraine days that their migraine frequency remains above the threshold for optimal control,” commented Dr Caronna. He added that future studies should explore whether initiating migraine-specific preventive treatments earlier may further reduce residual migraine days in responders.

1. Sacco S, et al. Cephalalgia. 2025 Feb;45(2):3331024251320608.
2. Caronna E, et al. Achieving higher standards in real-world migraine care with anti-CGRP monoclonal antibodies. LBN_01, EAN Congress 2025, 21-24 June 2025, Helsinki, Finland.

Medical writing support was provided by Michiel Tent.

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Posted on 24 June 20253 September 2025