Galcanezumab reduced medication overuse
Compared with placebo, both doses of galcanezumab significantly decreased mean monthly migraine headache days in patients with baseline medication overuse. In the EVOLVE studies, this endpoint decreased by 2.71 in the placebo group, 6.26 in the galcanezumab 120-mg group, and 5.77 in the galcanezumab 240-mg group. In REGAIN, the reductions were 2.25 in the placebo group, 4.78 in the galcanezumab 120-mg group, and 4.51 in the galcanezumab 240-mg group. The effect size was higher in patients who were overusing medications, compared with those who were not, said Dr. Aurora. “This is clinically relevant, because most of us ... had this belief that patients who were overusing medications may be more treatment-resistant to prevention.”
In addition, galcanezumab was associated with significantly lower rates of average monthly medication overuse, compared with placebo. In the EVOLVE studies, the average rate of monthly medication overuse was 15.9% for the placebo group, 6.2% for the galcanezumab 120-mg group, and 7.9% for the galcanezumab 240-mg group. In REGAIN, the average rate of monthly medication overuse was 40.6% in the placebo group, 24.3% in the galcanezumab 120-mg group, and 23.1% in the galcanezumab 240-mg group. About 85% of patients with episodic migraine and medication overuse had a reduction in medication overuse, and approximately 50% of patients with chronic migraine and medication overuse had a reduction in medication overuse, said Dr. Aurora.
Dr. Aurora and coinvestigators are employees of Eli Lilly, which developed galcanezumab and funded the EVOLVE and REGAIN studies.
SOURCE: Aurora S et al. AHS 2019. Abstract IOR07.