Key clinical point: Topiramate in combination with monthly injections of greater occipital nerve block (GONB) is better at decreasing monthly migraine days (MMD) in chronic migraine (CM) than topiramate monotherapy at month 3 and is equally well tolerated.
Major finding: At month 3, greater reductions in MMD were observed in patients receiving topiramate and GONB with lidocaine+methylprednisolone (−9.6 vs. −7.3 days; P = .003) and topiramate and GONB with only lidocaine (−10.1 vs. −7.3 days; P < .001) compared with patients receiving topiramate monotherapy. Tolerability between the groups was comparable.
Study details: Findings are from a parallel group, three-arm study including 125 adult patients with CM who were randomly assigned to receive topiramate alone (n = 41), topiramate and GONB with lidocaine+methylprednisolone in month 1 followed by monthly lidocaine injections (n = 44), or topiramate and GONB with monthly lidocaine injections (n = 40) for 3 months.
Disclosures: The study received no financial support. The authors declared no conflicts of interest.
Source: Chowdhury D et al. Efficacy and tolerability of combination treatment of topiramate and greater occipital nerve block versus topiramate monotherapy for the preventive treatment of chronic migraine: A randomized controlled trial. Cephalalgia. 2022 (Mar 8). Doi: 10.1177/03331024221082077