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NCT Number: NCT07609914

A Study to Learn About the Safety of Taking an Additional Dose of the Medicine Rimegepant in Adults With Migraine

Acute treatments for migraine may not provide sufficient pain relief after an initial dose, and a second dose of a given medication may be needed to fully abort an attack. International Headache Society (IHS) global practice recommendations for the Acute Treatment of Migraine suggest a second dose of the same medication within the recommended dose limit in people with headache relapse after successful initial treatment of a migraine attack.

The primary purpose of this study is to evaluate the safety and tolerability of redosing of rimegepant when taken for the acute treatment of a migraine attack, as it is possible that some patients may benefit from a second dose of rimegepant in this setting.

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Key information

Conditions

Acute Treatment of Migraine

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Hope Clinical Research, Canoga Park, California, United States

Loading trial locations.

About this study

To evaluate the safety and tolerability of rimegepant 75 mg ODT when redosed due to residual pain or headache relapse

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion:

  • Eligible participants include adult participants aged 18 years of age or older with a minimum 1-year history of migraine (with or without aura) consistent with International Classification of Headache Disorders, 3rd Edition
  • Eligible participants must be currently using acute migraine treatment in accordance with the local label and have all of the following on average across the 12 weeks prior to the Screening Visit and, during the first 28 days of the observation phase (OP): (1) 6-14 monthly migraine days (MMDs); (2) <15 monthly headache days (MHDs) (migraine or non-migraine); and (3) <7 monthly non-migraine headache days.

Exclusion:

  • Participants with headaches occurring ≥15 days per month (migraine or non-migraine) on average across the 12 weeks prior to the Screening Visit and ≥7 non-migraine headache days per month on average across the 12 weeks prior to the Screening Visit would not be eligible.

Treatment and study plan

Rimegepant

Drug

Rimegepant

Primary outcomes

  1. Incidence of Treatment-Emergent Adverse Events (TEAEs), serious TEAEs, and TEAEs leading to study intervention discontinuation on treatment by average monthly redosing frequency over the entire OLT phase (<3, ≥3 to <6, ≥6 re-doses per month) and overall

    Time frame: Up to 6 months

  2. Incidence of LFT elevations, AST >3x ULN, alanine aminotransferase ALT >3x ULN, and total bilirubin >2x ULN on treatment by average monthly redosing frequency over the entire OLT phase (<3, ≥3 to <6, ≥6 re-doses per month) and overall

    Time frame: Up to 6 months

Secondary outcomes

  1. Percentage of rimegepant-redosed headache days with satisfaction with headache pain reduction over the entire OLT phase, based on a rating of 'Extremely satisfied' or 'Satisfied' for satisfaction with study intervention to reduce headache pain

    Time frame: Up to 6 months

  2. Percentage of rimegepant-redosed headache days with reduced impact on daily activities over the entire OLT phase, based on a rating of 'Very good' or 'Good' for the ability of study intervention to reduce the impact of headaches on daily activities

    Time frame: Up to 6 months

Study contacts

Contact information is provided by the study sponsor or research team.

Pfizer CT.gov Call Center

CONTACT

[email protected]

1-800-718-1021

Sponsors and collaborators

Lead sponsor

Pfizer

Industry

Registry information

Official study title

A PHASE 4, SINGLE-ARM, OPEN-LABEL STUDY TO EVALUATE THE SAFETY, TOLERABILITY AND EFFECTIVENESS OF REDOSING OF RIMEGEPANT IN PARTICIPANTS 18 YEARS OF AGE OR OLDER FOR THE ACUTE TREATMENT OF MIGRAINE

Important dates

Study start
2026
Primary completion
2028
Study completion
2028
First posted
May 27, 2026
Registry last updated
Jul 9, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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