Study of Efficacy and Safety of Erenumab in Adult Chronic Migraine Patients

key inclusion Criteria:

History of at least 5 attacks of migraine
≥ 15 headache days of which ≥ 8 headache days meet criteria as migraine days during the baseline period
>=80% diary compliance during the baseline period

Key exclusion Criteria:

Older than 50 years of age at migraine onset
History of cluster or hemiplegic headache
Evidence of seizure or major psychiatric disorder
Cardiac or active hepatic disease
Pregnant or nursing