RecruitingPhase 3

A Clinical Trial to Evaluate Efficacy and Safety of Xeomin® Injections for Preventing Chronic Migraine

United States, Austria, Canada780 participantsStarted 2025-08-21

Plain-language summary

In this clinical trial, participants with chronic migraine will receive injections with Xeomin or Placebo into muscles of the head and neck. The purpose is to measure the change in monthly migraine days with Xeomin injections compared to Placebo injections. Trial details include: * Trial duration: 52 to 55 weeks; * Screening period: 4 to 5 weeks; * Treatment duration: 4 treatments, each about 12 weeks apart; and * Visit frequency: about every 4 weeks, 14 visits in total. The first and last visit and the 4 treatment visits are on-site, the other 8 visits are remote by phone / video call.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Participant has a diagnosis of CM with or without aura according to the International Classification of Headache Disorders Edition 3 criteria for ≥ 12 months and is able to distinguish migraine headaches from all other types of headaches; * Participant age \< 50 years at the time of migraine onset; * Participant meeting the following headache and migraine day criteria in each of the 3 months prior to screening: history of ≥ 15 headache days per month and history of ≥ 8 migraine days per month; and * During the last 28 days of the screening period, participant experiencing: ≥ 15 headache days and ≥ 8 migraine days that qualify as such per the headache diary. Exclusion Criteria: * Diagnosis of other primary headache types, except tension-type headache, which is permitted; * Diagnosis of aura without headache, migraine with brainstem aura, hemicrania continua, hypnic headache, hemiplegic migraine, retinal migraine, persistent aura without infarction, migraine aura-triggered seizure, or previous migrainous infarction; * Diagnosis of secondary headache types, except medication overuse headache, which is permitted; * Currently taking \> 1 prescribed drug for the preventive treatment of migraine; * Discontinuation of anti-calcitonin gene-related peptide (CGRP) / anti-CGRP receptor monoclonal antibody treatment less than 5 months prior to screening.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Change in monthly migraine days from baseline (28 days before baseline visit) to Month 6 (weeks 21 to 24 after first injection) - Dose A

Timeframe: Baseline to month 6

Trial details

NCT IDNCT07018713

SponsorMerz Therapeutics GmbH

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2027-10

Contact for this trial

Public Disclosure Manager

+49691503 clinicaltrials@merz.com

View on ClinicalTrials.gov More Chronic Migraine trials