Ascending Single Doses of Erenumab (AMG 334) in Healthy Adults and Migraine Patients

The primary purpose of this study is to determine whether erenumab is safe and well tolerated in healthy adults and migraine patients. As part of the secondary objectives, this study will be conducted to characterize the pharmacokinetic (PK) profile of erenumab after single subcutaneous (SC) or intravenous (IV) doses in healthy participants and migraine patients as well as to characterize the effect of erenumab on the capsaicin-induced increase in dermal blood flow after single SC or IV doses in healthy participants and migraine patients.