Migraine is a debilitating disorder that affects 37 million people in the United States. Recently, three new injectables calcitonin gene-related peptide (CGRP) receptor antagonists-erenumab, fremanezumab, and galcanezumab-were FDA approved for prophylactic treatment of migraine in adults, that plays a key role in migraine pathophysiology. By blocking the receptor function of CGRP, these agents can reduce the total number of headache days per month and limit the need for using multiple medications. In clinical trials, these agents, which have no drug interactions and minimal adverse reactions, reduced headache days per month by as much as 50% in patients experiencing multiple migraine days each month. These new biologics, however, are more expensive for the patient compared with other prophylactic treatments
The rational of this study was to assess the efficacy of erenumab on frequency of monthly migraine days in adults at baseline, 3 months and 6 months, disability in patients with chronic migraine and on post covid migraine severity
