Table 1 Baseline characteristics for the 97 patients included in the safety analysis. Data are presented as mean ± SD (range). In case of missing data, the number of evaluated patients is given in parentheses

Age

46.6 ± 11.7 (22–75)

Gender

71 Male/26 Female

Cluster headache subtype

88 Chronic/9 Episodic

Laterality of headache

56 Left/41 Right

Cluster headache duration (years)

13.4 ± 9.0 (1–44) (n = 95)

Cluster attack frequency (per week)

25.6 ± 20.9 (0–96) (n = 95)

HIT-6 score at baseline

64.4 ± 6.4 (41–78) (n = 92)

Preventive medications at baseline

28% (27/97) used no preventive medications

72% (70/97) used preventive medications

Of these: 48% (47/97) used verapamil as monotherapy or part of polytherapy, 24% (23/97) used other medications^a