Congresso Nazionale SISC Open access

P068 | EPISODIC CLUSTER HEADACHE: HIGH EFFICACY OF THE COMBINED THERAPY WITH HIGH-DOSE INTRAMUSCULAR METHYLPREDNISOLONE AND HIGH DOSES OF VERAPAMIL ON STOPPING SINGLE CLUSTERS

A. Terrin1, C. Disco2, M. Bellamio1, F. Mainardi3, F. Maggioni4, G. Zanchin4 | 1Dipartimento Di Scienze Neurologiche, Centro Cefalee dell’Angelo, UOC Di Neurologia, Ospedale Dell'Angelo AULSS 3 Serenissima, Venice Mestre, Italy; 2Dipartimento di Scienze Neurologiche, Centro Cefalee dell’Ospedale Ca’ Foncello, UOC di Neurologia, AULSS2 Treviso, Italy; 3UOC di Neurologia, Ospedale SS Giovanni e Paolo, AULSS 3 Serenissima, Venice, Italy; 4Padua University Medical School, Italy

Authors

Published
3 November 2026
Section
Congresso Nazionale SISC

Abstract

Background. Following our previous study on combined therapy of high-dose intravenous methylprednisolone (MP) and high-dose oral verapamil (V) in Episodic Cluster Headache (ECH), here we report the results of combined treatment with high-dose intramuscular MP and high-dose oral V.
Methods. A series of 19 patients, 17 male and 2 female (50.4±17.2 years) affected by ECH was followed during 26 active cluster periods (CP). Patients were recruited within 2 weeks from the beginning and more than a month before the expected spontaneous end of CP. Patients received 120 mg intramuscular MP daily for 4 days, then 80 mg/day for 3 days, then 40 mg/day for 3 days; concomitantly, oral V was started or incremented 40 mg daily up to 320-400 mg/day; a subsequent titration up to 520 mg/day has been recommended in selected cases.
Results. A complete resolution of CP was documented in 21/26 (81%) cases: 18/26 (69%) CP stopped within the first days from the start of MP/V administration; other 3/26 (12%) CP ended during the first month without any V increment; 5/26 (19%) CP failed to achieve complete resolution at one month. Among these, a 50% reduction of frequency and intensity of attacks was obtained with V escalation up to 560 mg/day, whereas the duration of the CP was comparable to previous ones.When stratified according to the initial V dose (<400 vs ≥400 mg/day, 11 vs 15 CP), complete response at one month was observed in 5/11 CP (45%) and in 10/15 CP (67%) respectively, suggesting a trend toward higher efficacy with higher V starting doses.
Conclusions. In our previous study the combination of high-dose intravenous MP and of oral V proved crucial in the stopping of CP, with a higher rate of positive results than those reported in the literature either with the combination of low doses of MP and V, or with a high-dose MP or V administered alone. In this preliminary study, the combination of high-dose intramuscular MP and oral V revealed similar efficacy to the combination of high-dose intravenous MP and of oral V, with the advantage of avoiding Day Hospital admission.

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