Study of Quality of Life in Subjects With Chronic or High-frequency Episodic Migraine and Associated Comorbidities Treated With Erenumab

A 12-month Prospective, Phase IIIb, Multicenter, Open-label Clinical Trial to Assess Health-related Quality of Life (HRQoL) in Patients With Chronic or High-frequency Episodic Migraine Treated With Erenumab Who Present Associated Comorbidities

Migraine is a very common, neurological disorder, characterized by recurrent episodes of headache, potential progression to more frequent and severe attack patterns, and associated symptoms. In Spain, the prevalence rates are 12-13% and in women up to 17-18% Migraine has been shown to largely impair patient's Health-Related Quality of Life (HRQoL), affecting work, household chores, social activities and family life. Recurrent headache attacks and frequently persistent fear and concern about the next attack disrupt the patient's familial, occupational and social life, and reduce his/her expectations for career and financial future. The consequences of this loss of productivity is also shared in his/her private life with their family. For this reason, not only the clinical benefit but other dimensions as HRQoL or work affectation should be added to the study of the benefits of migraine treatment.

Migraine pathophysiology pathways may be shared with other illness, such as fibromyalgia, chronic fatigue or Irritable Bowel Syndrome (IBS) . The purpose of the present clinical trial is to evaluate whether erenumab, at a target dose of 70 mg or 140 mg for a period of 12 months, impacts Health-Related Quality of Life (HRQoL) among patients withchronic migraine (CM) or High-Frequency Episodic Migraine (HFEM) who are affected with at least one comorbidity (fibromyalgia, fatigue and IBS). Data from this study, will provide additional information to help clinicians in treating patients with migraine and other illness.

Inclusion Criteria: key inclusion citeria

During the Screening Epoch:

1. Signed informed consent must be obtained prior to participation in the study.
2. Adults ≥18 years of age upon entry into screening.
3. Patient diagnosed with chronic and high -frequency episodic migraine (with or without aura) for at least 1 year prior to screening according to the International Classification of Headache Disorders-3rd Edition (ICHD-3).
4. Patient with a documented diagnosis in clinical history of one or more of the following comorbidities: chronic fatigue, fibromyalgia and/or IBS.
5. Patients previously treated with other monoclonal antibodies for migraine can be included if the appropriate washout period according to product half-life has been done for each monoclonal antibody.

During the Baseline Epoch:

1. Migraine frequency of ≥ 10 migraine days during the Baseline Epoch, confirmed by the eDiary.
2. ≥ 80% eDiary compliance during the Baseline Epoch.

Exclusion Criteria: Key Exclusion criteria

1. Older than 50 years of age at migraine onset.
2. Unable to differentiate migraine from other headaches.
3. History of cluster headache or hemiplegic migraine headache.
4. Used a device, or procedure within 2 months prior to the start of or during baseline or during the treatment period.
5. Use of other investigational drugs within 5 half-lives of enrollment or inappropriate washout period in case of monoclonal antibodies, or until the expected pharmacodynamic effect has returned to baseline, whichever is longer.
6. Unlikely to be able to complete all protocol required study visits or procedures, and/or to comply with all required study procedures.
7. History or evidence of any other unstable or clinically significant medical condition that in the opinion of the investigator would pose a risk to subject safety or interfere with the study evaluation, procedures, or completion.

Other protocol-defined inclusion/exclusion criteria may apply at the end.