RT Journal Article SR Electronic T1 Erenumab in chronic migraine JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP e2250 OP e2260 DO 10.1212/WNL.0000000000007452 VO 92 IS 19 A1 Lipton, Richard B. A1 Tepper, Stewart J. A1 Reuter, Uwe A1 Silberstein, Stephen A1 Stewart, Walter F. A1 Nilsen, Jon A1 Leonardi, Dean K. A1 Desai, Pooja A1 Cheng, Sunfa A1 Mikol, Daniel D. A1 Lenz, Robert YR 2019 UL http://n.neurology.org/content/92/19/e2250.abstract AB Objective To determine the effect of erenumab, a human monoclonal antibody targeting the calcitonin gene-related peptide receptor, on health-related quality of life (HRQoL), headache impact, and disability in patients with chronic migraine (CM).Methods In this double-blind, placebo-controlled study, 667 adults with CM were randomized (3:2:2) to placebo or erenumab (70 or 140 mg monthly). Exploratory endpoints included migraine-specific HRQoL (Migraine-Specific Quality-of-Life Questionnaire [MSQ]), headache impact (Headache Impact Test–6 [HIT-6]), migraine-related disability (Migraine Disability Assessment [MIDAS] test), and pain interference (Patient-Reported Outcomes Measurement Information System [PROMIS] Pain Interference Scale short form 6b).Results Improvements were observed for all endpoints in both erenumab groups at month 3, with greater changes relative to placebo observed at month 1 for many outcomes. All 3 MSQ domains were improved from baseline with treatment differences for both doses exceeding minimally important differences established for MSQ–role function-restrictive (≥3.2) and MSQ–emotional functioning (≥7.5) and for MSQ–role function-preventive (≥4.5) for erenumab 140 mg. Changes from baseline in HIT-6 scores at month 3 were −5.6 for both doses vs −3.1 for placebo. MIDAS scores at month 3 improved by −19.4 days for 70 mg and −19.8 days for 140 mg vs −7.5 days for placebo. Individual-level minimally important difference was achieved by larger proportions of erenumab-treated participants than placebo for all MSQ domains and HIT-6. Lower proportions of erenumab-treated participants had MIDAS scores of severe (≥21) or very severe (≥41) or PROMIS scores ≥60 at month 3.Conclusions Erenumab-treated patients with CM experienced clinically relevant improvements across a broad range of patient-reported outcomes.Clinicaltrials.gov identifier NCT02066415.Classification of evidence This study provides Class II evidence that for patients with CM, erenumab treatment improves HRQoL, headache impact, and disability.CGRP=calcitonin gene-related peptide; CI=confidence interval; CM=chronic migraine; EF=emotional functioning; HIT-6=Headache Impact Test–6; HRQoL=health-related quality of life; MID=minimally important difference; MIDAS=Migraine Disability Assessment; MMD=monthly migraine days; MSQ=Migraine-Specific Quality-of-Life Questionnaire; PREEMPT=Phase 3 Research Evaluating Migraine Prophylaxis Therapy; PRO=patient-reported outcome; PROMIS=Patient-Reported Outcomes Measurement Information System; RFP=role function-preventive; RFR=role function-restrictive