Evidence map›Paper›PMID 41366286›Full record

Trial reportThe journal of headache and pain2025

A phase 4, 24-week, open-label study to evaluate the safety and tolerability of once-daily dosing of 75 mg rimegepant for episodic migraine prevention.

Jeremias Antinew, Robert J Fountaine, Vittorio Loprinzo, Esther Straghan, Sergey Dubrovin, Patrizia DeBesi, Nick Vatakis, Terence Fullerton

Registry-linked trialAbstract readClinical Trial, Phase IV
In one paragraph

Trial report in The journal of headache and pain, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05207865 (A Phase 4, Open-label Study to Evaluate the Safety and Tolerability of Daily Dosing of Rimegepant in Episodic Migraine Prevention), which is not on this map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT05207865 phase4completednot on this map

A Phase 4, Open-label Study to Evaluate the Safety and Tolerability of Daily Dosing of Rimegepant in Episodic Migraine Prevention

TypeinterventionalSponsorPfizerRan2022 to 2024Enrolled441ConditionsMigraine, Episodic Migraine, Phonophobia, PhotophobiaArmsRimegepant
3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Trial
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Jeremias AntinewPfizer Inc., 445 Eastern Point Rd., Groton, CT, 06355, USA. Jeremias.Antinew@pfizer.com.
Robert J FountainePfizer Inc., 445 Eastern Point Rd., Groton, CT, 06355, USA.
Vittorio LoprinzoPfizer Inc., 66 Hudson Boulevard East, New York, NY, 10001-2192, USA.
Esther Straghan3Pfizer Ltd., Walton Oaks, Dorking Road, Walton on the Hill, Tadworth, Surrey, KT20 7NS, UK.
Sergey DubrovinPfizer, Russia 10, Presnenskaya nab., Moscow, 123112, Russia.
Patrizia DeBesiPfizer S.r.l., Via A.M, Mozzoni, 12, Milan, Italy.
Nick VatakisSPRI Clinical Trials LLC, 3044 Coney Island Ave., Suite 201, Brooklyn, NY, 11235, USA.
Terence FullertonPfizer Inc., 445 Eastern Point Rd., Groton, CT, 06355, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRimegepant is a small-molecule calcitonin gene-related peptide receptor antagonist approved in adults for acute treatment of migraine (with or without aura) and preventive treatment of episodic migraine (EM). Rimegepant is well tolerated at approved doses; 75 mg as needed up to once per day for acute treatment and 75 mg every other day for preventive treatment. This study evaluated long-term safety and tolerability of once-daily (QD) rimegepant 75 mg for EM prevention.

methodsAdults with 4-14 migraine attacks per month received open-label oral rimegepant 75 mg QD for up to 24 weeks. Standard-of-care medications for acute treatment of migraine and stable dosing of preventive migraine medications were permitted. Endpoints included on-treatment adverse events (AEs) occurring in ≥5% of participants, on-treatment serious AEs, on-treatment AEs leading to rimegepant discontinuation, and on-treatment grade 3-4 laboratory test abnormalities. Efficacy was not assessed in this study.

resultsOverall, 250 participants (female = 82.4%, White = 86.4%, mean age = 42.6 years) received ≥1 dose of rimegepant and 74.8% completed open-label treatment. Mean (SD) time on rimegepant was 19.3 (8.7) weeks. Overall, 53.6% of participants had ≥1 on-treatment AE, none had a serious AE, 1.6% had a severe AE, and 2.8% had an AE leading to rimegepant discontinuation. On-treatment AEs occurring in ≥5% of participants included nasopharyngitis (9.2%), COVID-19 (6.4%), and nausea (6.0%). On-treatment grade 3-4 laboratory test abnormalities included low lymphocytes (0.4%), high creatine kinase (3.8%), low glucose (0.4%), high low-density lipoprotein cholesterol (LDL-C; 9.8%), high fasting LDL-C (9.3%), high non-fasting LDL-C (10.2%), high potassium (1.3%), high triglycerides (0.9%), high fasting triglycerides (1.3%), and urine glucose (0.5%). No on-treatment elevations in liver transaminases (alanine aminotransferase [ALT] or aspartate aminotransferase [AST]) > 5× the upper limit of normal (ULN) or potential Hy's law cases (ALT or AST > 3× the ULN concurrent with total bilirubin levels > 2× the ULN) were observed.

conclusionRimegepant 75 mg QD for up to 24 weeks had a favorable safety profile for preventive treatment of EM.

trial registrationClinicalTrials.gov NCT05207865 (registered January 12, 2022).

Indexed as

Calcitonin Gene-Related Peptide Receptor AntagonistsMigraine DisordersPiperidinesPyridinesAdultAgedDrug Administration ScheduleFemaleHumansMaleMiddle AgedTreatment OutcomeYoung AdultCalcitonin Gene-Related Peptide Receptor AntagonistsPiperidinesPyridinesrimegepant sulfateEpisodic migrainePhase 4PreventionRimegepantSafety

Identifiers

PMID41366286
PMCPMC12801679

What Socratic holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.