A Study to Evaluate the Effectiveness and Safety of Dysport® for the Prevention of Episodic Migra… (NCT06047457) | Clinical Trial Compass
Active — Not RecruitingPhase 3
A Study to Evaluate the Effectiveness and Safety of Dysport® for the Prevention of Episodic Migraine in Adults
United States, Canada, Czechia751 participantsStarted 2023-09-29
Plain-language summary
The purpose of this study is to understand the safety and effectiveness of the study drug, Dysport® when compared with placebo in preventing episodic migraine.
A migraine is a headache with severe throbbing pain or a pulsating sensation, usually on one side of the head, and is often accompanied by feeling or being sick and a sensitivity to bright lights and sound.
Episodic Migraine is defined as having less than 15 days of headache a month with at least 6 days with migraine headaches.
Migraines are caused by a series of events which cause the brain to get stimulated / activated, which results in the release of chemicals that cause pain.
Dysport® is a formulation of Botulinum toxin type A (BoNT-A), a medication that stops the release of these chemical messengers.
The study will consist of 3 periods:
1. A 'screening period' of 6 to 12 weeks to assess whether the participant can take part to the study and requires 1 visit.
2. A first Treatment Phase of 24 weeks. On Day 1 and at Week 12 of the first Treatment Phase, participants will receive injections into various muscles across the head, neck, face and shoulders.
The injections will contain either a dose "A" or a dose ''B'' of Dysport® or a placebo (an inactive substance or treatment that looks the same as, and is given in the same way as, an active drug or intervention/treatment being studied).
Participants will make 4 visits to the clinic in person and have 4 remote (online) visits.
3. A second Treatment Phase of 24 weeks (extension phase). At Week 24 and at Week 36, all participants will get Dysport® (dose "A" or dose "B").
There will be 3 in person visits and 4 remote visits.
Participants will need to complete an e-diary and questionnaires throughout the study.
Participants will undergo blood samplings, urine collections, physical examinations, and clinical evaluations. They may continue some other medications, but the details need to be recorded.
The total study duration for a participant will be up to 60 weeks (approx. 14 months).
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 :
* Must be ≥18 years of age inclusive, at the time of signing the informed consent and privacy/data protection documentation.
* Participant has a diagnosis for more than 12 months, prior to screening visit, of migraine with aura or migraine without aura according to the International Classification of Headache Disorders definition and diagnostic criteria
* Migraine onset occurred when participant was \<50 years of age.
* Has baseline number of monthly headache days (MHD) of \<15 and baseline number of monthly migraine days (MMD) of ≥6, using eDiary data collected during the 4 weeks nearest to randomisation on Day 1 (but prior to randomisation).
* Has baseline number of valid diary days ≥22 days collected during the 4 weeks nearest to randomisation on Day 1.
* Participant must have previously used, or is currently using, preventive treatment for migraine (pharmacological) (i.e. non-naïve) prior to start of screening eDiary
Exclusion Criteria :
* History or current diagnosis of migraine with brainstem aura, retinal migraine, complications of migraine, tension-type headache, trigeminal autonomic cephalalgias, hypnic headache, hemicrania continua, or new daily persistent headache.
* Headache attributed to another disorder (e.g. secondary headaches), except medication overuse headache, which is permitted.
* Use of any of the following medications in the specified timeframe prior to start of the screening daily headache eDiary:
a. Within 24 weeks
* i. Botu…
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
1
Change from baseline in monthly migraine days (MMD)
Timeframe: Every 4 weeks from Week 4 (Weeks 1-4) to Week 24 (Weeks 21-24)