The total study duration from screening visit to safety follow-up visit is approximately 36 weeks and includes a screening period (4 weeks), a placebo-controlled period (12 weeks), an open-label period (12 weeks), and a safety follow-up period (8 weeks).
Medication overuse headache (MOH) is a type of headache caused by excessive use of acute headache or migraine medications (medications used to treat a headache or migraine once it begins). Treatment of MOH usually involves reducing the dose of or discontinuing acute medications.~Eptinezumab is a medication used for the preventive treatment of migraine in adults. The main goals of this trial are to learn whether eptinezumab helps reduce the number of days with migraine, the number of days with headache, and acute medication use in adults who have migraine and MOH.