Atrioventricular Block and Cluster Headache (SEVA)
France60 participantsStarted 2020-11-02
Plain-language summary
Verapamil is a calcium channel blocker widely used to treat cardiovascular diseases however it is also the first line treatment in the prevention of cluster headaches. In France, its prescription in that indication is based on compliance with the Temporary Recommendation for Use (RTU) that insists on the possible the cardiac side effects that can occur as the doses required for cluster headache are significantly higher than the doses used in cardiology.
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:
* patient 18 years old, and older
* patient suffering from Cluster Headache (according to the l'ICHD-3 diagnostic criterias)
* patients affiliated to the social security
* patient that has given his full written consent to participate in the study
* female patients participating in the study must be using an efficient contraception for more than 1 month prior to the beginning of the study
Exclusion Criteria:
* patient presenting contraindications to the use of verapamil
* patient observing a treatment with ivabradine (Procoralan®), bétablockers, colchicine, l'esmolol, triazolam, quinidine.
* patient under justicial protection
* patient breastfeeding, or pregnant
* patient suffering from a neuromuscular transmisson disease
* patient with a pacemaker
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
Evaluation of the atrioventricular block when verapamil is used in prevention of Cluster Headache.