A Study in Healthy Adults Investigating Eptinezumab Produced by 2 Different Manufacturing Cell Lines

Key Inclusion Criteria: * The participant has a body weight ≥50 and ≤100 kilograms (kg). * The participant has a body mass index (BMI) ≥18.5 and ≤30 kg/meter (m\^2) at the screening visit and at the baseline visit. * The participant has a resting supine pulse ≥45 and ≤100 beats per minute (bpm) at the screening visit and at the baseline visit. * The participant has a resting supine systolic blood pressure ≥91 and ≤140 millimeters of mercury (mmHg) and a resting supine diastolic blood pressure ≥51 and ≤85 mmHg at the screening visit and at the baseline visit. * The participant is, in the opinion of the investigator, generally healthy based on medical history, a physical examination, vital signs, an electrocardiogram (ECG), and the results of the clinical chemistry, haematology, urinalysis, serology, and other laboratory tests. Key Exclusion Criteria: * The participant has taken disallowed medication \<1 week prior to the dose of investigational medicinal product (IMP) or \<5 half-lives prior to the screening visit for any medication taken. * The participant has taken any IMP \<3 months or \<5 half-lives (whichever is longer) prior to the first dose of IMP. * The participant has or has had any clinically significant immunological, cardiovascular, respiratory, metabolic, renal, hepatic, gastrointestinal, endocrinological, haematological, dermatological, venereal, neurological, or psychiatric disease or other major disorder. * The participant has been dosed with a monoclonal antibody (mAb) ≤6 months prior to the screening visit. * The participant is a smoker or uses other nicotine-containing products (for example, snuff, nicotine patches, nicotine chewing gum, mock cigarettes, inhalers). Ex-smokers must have ceased smoking \>3 months prior to the screening visit. Other inclusion and exclusion criteria may apply.