A Phase 2 interventional study of Rimegepant in Cluster Headache, sponsored by Mayo Clinic. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-01-12.
Sponsored by Mayo Clinic · Phase 2, Interventional, and Treatment
The purpose of this research is to explore the efficacy of rimegepant as a preventative therapy for cluster headache.
This is a prospective, open-label pilot study to investigate the use of rimegepant for the treatment of cluster headache. Subjects will be screened at outpatient clinic visit appointments and interested qualified subjects will be consented and offered participation in this trial. Once consent has been obtained, patients with cluster headache will start immediately keeping track of their headaches for a one-week baseline. In contrast, patients with episodic cluster headache will be asked to contact the study coordinator at the onset of their next cluster cycle, at which point they will repeat the screening and then start their one-week baseline headache diary. After establishing the baseline headache frequency, severity, and abortive medicine use, patients will be asked to start their first dose of study drug with their next moderate to severe cluster headache. They will rate their pain for this headache on a 5 point severity scale ("no headache," "mild," "moderate," "severe" or "very severe" and rate the pain on a scale of 0 to 10 ("0" is no pain and "10" is most severe pain imaginable) at the time of taking rimegepant and rate the pain again at 15, 30, 45, and 60 minutes after taking the drug. 60 or more minutes after taking the rimegepant, they are allowed to use their usual standard of care for the acute/abortive treatment of acute cluster attacks. After this first dose, they will then take rimegepant on an every other day schedule for a total of 4 doses over 8 days. A final visit for evaluation and collection of headache diaries will be conducted at the end of the study.
123 studies on the registry are indexed under Cluster Headache; 26 are open to participants now.
This study's enrollment of 20 is below the median of 42 across 90 interventional studies indexed under Cluster Headache.
Browse Cluster Headache studies →Mayo Clinic is the lead sponsor of 3,269 studies on the registry; 672 are open to participants now.
Of its 452 completed or terminated interventional studies of FDA-regulated products, 321 (71%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Having a diagnosis of recurrent cluster headaches, as described by ICHD-3 (International Classification of Headache Disorders-3):
Headache is accompanied by at least one of the following:
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.
Stroke symptoms need emergency care at once, even if they go away.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
TIA (transient ischaemic attack)
A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.
Stroke symptoms need emergency care at once, even if they go away.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Subjects with cluster headaches will track their headaches for a one-week baseline headache diary. After establishing the baseline headache frequency, severity, and abortive medicine use, subjects will be asked to start their first dose of rimegepant with their next moderate to severe cluster headache.
Drug: Rimegepant
150 mg oral disintegrating tablet every other day for one week
Also known as: Nurtec ODT
Change in weekly frequency of cluster headache attacks
Total number of cluster headache attacks experienced in one week
Time frame: Baseline, week of treatment (days 1-7)
Change in daily headache severity
Change from baseline daily headache severity in days 1 through 8 in subjects treated with rimegepant, as measured on a Numeric Pain Rating Scale (NPRS), an 11-point scale from 0 to 10, where "0" indicates no pain and "10" suggests the most severe pain imaginable
Time frame: Baseline, week of treatment (days 1-8)
Change in daily frequency of cluster headache attacks
Total number of cluster headaches experienced daily
Time frame: Baseline, week of treatment (days 1-8)
Plan to share: No
This study is completed, as verified in Jan 2026. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Rimegepant