no significant difference in headache improvement between patients who received Erenumab before Botox and those who received Botox before Erenumab (e.g., reduction in headache days, intensity, or duration)
proportion of patients who respond positively to treatment is the same in both groups OR there is a significant  difference in the proportion of responders in both groups.
Patients, that recieved Botox to Erenemab (BE)
Total Patients:604 Patients received Erenumab between 10/2022 – 12/2024
Prior Botox Treatment & Up to 2 Additional Prophylactics (excluding antibodies) → 51 Patients
Exclusions: 1 patient diagnosed with New Daily Persistent Headache (NDPH) & received external Botox not following PREEMPT protocol 1 patient received Botox off-label 3 patients received external Botox 20 patients lacked KSK or anamnesis data
Final Study Population:Â 26 Patients
Patients, that recieved Erenumab to Botox (EB)
Total Patients: 604 Patients received Erenumab between 10/2022 – 12/2024
Max. 3 Prophylactics before Erenumab (excluding antibodies) → 377 Patients Stopped Erenumab and transitioned to Botox → 33 Patients
Exclusions: 2 patients had antibodies before Botox 1 patient received Botox without forehead treatment 4 patients lacked headache data
Final Study Population:Â 26 Patients