Observational Study on the Efficacy, Safety, and Tolerability of GAlcanezumab in Real Life Migraine Patients in ITaly

Objective: To determine in real life the efficacy, safety and tolerability of galcanezumab in the prevention of high-frequency episodic migraine (HFEM) and chronic (CM) migraine. Design: This prospective observational cohort study was conducted between November 2019 and January 2021. Participants: Consecutive adult HFEM and CM patients clinically prescribed galcanezumab were enrolled. Setting: Multicenter study in 13 Italian headache centers. Exposure: Galcanezumab subcutaneous injection 120 mg monthly with the first loading dose of 240 mg. Main Outcome(s) and Measure(s): The primary end-point was the change in monthly migraine days (MMDs) in HFEM patients and monthly headache days (MHDs) in CM ones after six months of therapy (V6) compared to baseline. Secondary end-points included variation in Numerical Rating Scale (NRS), monthly painkiller intake (MPI), HIT-6, and MIDAS scores. We assessed 50%, 75%, and 100% responder rates (RR), the conversion rate from CM to episodic migraine (EM), and the Medication Overuse condition to the non-overuser.