| Completed | 2 | 101 | Europe | Erenumab, AMG 334, Placebo | Charite University, Berlin, Germany | Cluster Headache, Trigeminal Autonomic Cephalalgias, Headache Disorders, Primary, Brain Disease | 09/23 | 09/23 | | |
| Recruiting | N/A | 175 | Europe, US | Partial Rebreathing Device, Sham breathing device | Rehaler, Qmed Consulting A/S | Migraine With Aura | 10/24 | 10/25 | | |