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MigrainePhase 3NCT05399459

Efficacy and Safety Study of Rimegepant for the Acute Treatment of Migraine in Japanese Subjects (Japan Only)

A Phase 3 study testing Rimegepant 25 MG and Rimegepant 75 MG in people with Migraine, run by Pfizer at 50 sites in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

This study is being conducted to determine the appropriate dose of rimegepant in Japanese subjects, as well as to evaluate the efficacy, safety, and tolerability of rimegepant in Japanese subjects for the acute treatment of migraine. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Migraine
What is being tested?
Rimegepant 25 MG and Rimegepant 75 MG
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
897 participants
Where
50 sitesJapan
Study dates
9 Aug 2022to 19 Jan 2024
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subject has at least 1 year history of migraines (with or without aura), consistent with a diagnosis according to the International Classification of Headache Disorder, 3rd Edition, including the following:
  • Migraine attacks present for more than 1 year with the age of onset prior to 50 years of age.
  • Migraine attacks, on average, lasting about 4-72 hours if untreated.
  • Not more than 8 attacks of moderate to severe intensity per month within the last 3 months.
  • Ability to distinguish migraine attacks from tension/cluster headaches.
  • Consistent migraine headaches of at least 2 migraine headache attacks of moderate or severe intensity in each of the 3 months prior to Screening Visit and maintains this requirement during the Screening period.
Show all 9Show fewer
  • Less than 15 days with headache (migraine or non-migraine) per month in each of the 3 months prior to Screening Visit and maintains this requirement during the Screening Period.
  • Subjects on prophylactic migraine medication are permitted to remain on therapy if the dose has been stable for at least 3 months prior to the Screening Visit, and if the dose is not expected to change during the course of the study.
  • Subjects with contraindications for use of triptans may be included provided they meet all other study entry criteria.

Who cannot join

  • Subject has a history of migraine with brainstem aura (basilar migraine), hemiplegic migraine or retinal migraine.
  • History of use of analgesics (e.g. nonsteroidal anti-inflammatory drugs [NSAIDs] or acetaminophen) on ≥ 15 days per month during the 3 months (12 weeks) prior to the Screening Visit.
  • Subject history with current evidence of uncontrolled, unstable or recently diagnosed cardiovascular disease, such as ischemic heart disease, coronary artery vasospasm, and cerebral ischemia. Subjects with Myocardial Infarction (MI), Acute Coronary Syndrome (ACS), Percutaneous Coronary Intervention (PCI), cardiac surgery, stroke or transient ischemic attack (TIA) during the 6 months prior to screening.
  • Uncontrolled hypertension or uncontrolled diabetes (however subjects can be included who have stable hypertension and/or diabetes for at least 3 months prior to screening).
  • Subject with other pain syndromes, psychiatric conditions, dementia, or significant neurological disorders (other than migraine) that, in the Investigator's opinion, interfere with study assessments.
  • Subject has a history of gastric, or small intestinal surgery (including Gastric Bypass, Gastric Banding, Gastric Sleeve, Gastric Balloon, etc.), or has a disease that causes malabsorption.
Show all 9Show fewer
  • The subject has a history or current evidence of any unstable medical conditions (e.g., history of congenital heart disease or arrhythmia, known or suspected infection, hepatitis B or C, or cancer) that, in the investigator's opinion, would expose them to undue risk of a significant adverse event (AE) or interfere with assessments of safety or efficacy during the course of the trial.
  • History of alcohol abuse and/or illicit drug use meeting DSM-V criteria for substance use disorder within 6 months of screening.
  • Participation in any other investigational clinical trial while participating in this clinical trial.

Trial locations and contacts

50 sites in 1 country.

50 sites in 1 country

Japan50 sites
  • Japanese Red Cross Asahikawa Hospital

    Asahikawa-shi, Hokkaido, 070-8530

  • Juntendo University Hospital

    Bunkyo-ku, Tokyo, 113-8431

  • Tokai university hachioji hospital

    Hachioji-shi, Tokyo, 192-0032

  • DOI CL Intern. Med./Neurol.

    Hiroshima, Hiroshima, 730-0031

  • Nagamitsu Clinic

    Hofu-shi, Yamaguchi, 747-0802

  • Tokyo Dental College Ichikawa General Hospital

    Ichikawa-shi, Chiba, 272-8513

  • Saitama Medical University Hospital

    Iruma-gun, Saitama, 350-0495

  • Narikawa Neurological Clinic

    Izumi-ku, Miyagi, 981-3126

  • Atsuchi Neurosurgery Hospital

    Kagoshima, Kagoshima-ken, 892-0842

  • Tanaka Neurosurgical Clinic

    Kagoshima, Kagoshima-ken, 892-0844

  • Kijima Neurosurgery Clinic

    Kahoku-gun, Ishikawa-ken, 929-0342

  • Nagaseki Headache Clinic

    Kai-shi, Yamanashi, 400-0124

  • Jinnouchi Neurosurgical Clinic

    Kasuga-shi, Fukuoka, 816-0802

  • Ikeda Neurosurgical Clinic

    Kasuga-shi, Fukuoka, 816-0824

  • St. Marianna Univ. Hospital

    Kawasaki-shi, Kanagawa, 216-8511

  • Konan Medical Center

    Kobe, Hyōgo, 658-0064

  • Atago Hospital

    Kochi, Kochi, 780-0051

  • Umenotsuji Clinic

    Kochi, Kochi, 780-8011

  • Saiseikai Kumamoto Hospital

    Kumamoto, Kumamoto, 861- 4193

  • Kyoto Okamoto Memorial Hospital

    Kumiyama-cho, Kyoto, 613-0034

  • University Hospital Kyoto Prefectural University of Medicine

    Kyoto, Kyoto, 602-8566

  • Medical Corporation Seikokai Takanoko Hospital

    Matsuyama, Ehime, 790-0925

  • Shinagawa Strings Clinic

    Minato-ku, Tokyo, 108-0075

  • Kitasato University Kitasato Institute Hospital

    Minato-ku, Tokyo, 108-8642

  • Mito Kyodo General Hospital

    Mito, Ibaraki, 310-0015

  • Iwate Med. Univ. Uchimaru MC

    Morioka, Iwate, 020-8505

  • Fujitsu Clinic

    Nakahara, Kanagawa, 211-8588

  • Tominaga Clinic

    Naniwa-ku, Osaka, 556-0015

  • Nishinomiya Municipal Central Hospital

    Nishinomiya-shi, Hyōgo, 663-8014

  • Ooba CL Neurosurg. & Headache

    Ōita, Oita Prefecture, 870-0831

  • Makabe Clinic

    Okayama, Okayama-ken, 700-0964

  • Okayama City General Medical Center Okayama City Hospital

    Okayama, Okayama-ken, 700-8557

  • Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-kofukai

    Osaka, Osaka, 530-8480

  • Kindai University Hospital

    Osakasayama-shi, Osaka, 589-8511

  • SUBARU Health Insurance Society Ota Memorial Hospital

    Ota-shi, Gunma, 373-8585

  • Ishikawa Clinic

    Sakyo-ku, Kyoto, 606-0851

  • Higashi Sapporo Neurology and Neurosurgery Clinic

    Sapporo, Hokkaido, 003-0003

  • Nakamura Memorial Hospital

    Sapporo, Hokkaido, 060-8570

  • Sendai Headache and Neurology Clinic, Medical Corporation

    Sendai, Miyagi, 982-0014

  • USUDA CLINIC for internal medicine

    Setagaya-ku, Tokyo, 156-0043

  • Tokyo Headache Clinic

    Shibuya-Ku, Tokyo, 151-0051

  • Tatsuoka Neurology Clinic

    Shimogyo-ku, Kyoto, 600-8811

  • Dokkyo Medical Univ. Hosp.

    Shimotsuga-gun, Tochigi, 321-0293

  • Fukuuchi Pain Clinic

    Shinjuku-ku, Tokyo, 160-0017

  • Keio University Hospital

    Shinjuku-ku, Tokyo, 160-8582

  • JRC Shizuoka Hospital

    Shizuoka, Shizuoka, 420-0853

  • Nishiogi Pain Clinic

    Suginami-ku, Tokyo, 167-0054

  • Suzuki Kei Yasuragi clinic

    Tachikawa, Tokyo, 190-0001

  • Sakura Neuro Clinic

    Toyama, Toyama, 930-0803

  • Takase Intern. Med. Clinic

    Toyonaka-shi, Osaka, 560-0012

Other trials in Japan

About this study

Official title: Double-Blind, Randomized, Placebo-Controlled, Dose-Ranging Study to Evaluate the Efficacy and Safety of Rimegepant for the Acute Treatment of Migraine in Japanese Subjects

This study is being conducted to determine the appropriate dose of rimegepant in Japanese subjects, as well as to evaluate the efficacy, safety, and tolerability of rimegepant in Japanese subjects for the acute treatment of migraine.

Conditions
Migraine
Being tested
Rimegepant 25 MG, Rimegepant 75 MG, Placebo
Keywords
Migraine, Headache, Acute Migraine
Medical subject headings
Migraine Disorders, Headache

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Rimegepant 25 MGDrug

    Also called BHV3000

    Single dose of 25 mg orally disintegrating tablet of rimegepant

  • Rimegepant 75 MGDrug

    Also called BHV3000

    Single dose of 75 mg orally disintegrating tablet of rimegepant

  • PlaceboDrug

    Matching placebo tablet

Study groups in NCT05399459
Study groupRoleWhat they receive
Rimegepant 25 mgExperimentalSingle dose of 25 mg orally disintegrating tablet of rimegepant
Receives: Drug: Rimegepant 25 MG
Rimegepant 75 mgExperimentalSingle dose of 75 mg orally disintegrating tablet of rimegepant
Receives: Drug: Rimegepant 75 MG
PlaceboPlacebo comparatorMatching placebo tablet
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Percentage of Participants Who Had Freedom From Pain at 2 Hours Post-Dose

    Pain freedom at 2 hours post-dose was defined as having a pain intensity of none at that time point. Pain was measured on a 4-point Likert scale, with following scores: 0= none, 1= mild, 2= moderate, 3= severe. Participants with score of 0 (no pain) were considered to have freedom from pain. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in Statistical Analysis Plan (SAP).

    Measured: 2 hours post-dose

Secondary outcomes (17)
  1. Percentage of Participants With Pain Relief at 2 Hours Post-Dose

    Pain relief at 2 hours post-dose was defined as a pain intensity of none or mild at that time point. Pain was measured on a 4-point Likert scale, with following scores: 0= none, 1= mild, 2= moderate, 3= severe. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 hours post-dose

  2. Percentage of Participants Who Had Freedom From Most Bothersome Symptom (MBS) at 2 Hours Post-Dose

    MBS freedom was defined as MBS reported before dosing that was absent post-dose. MBS included nausea, photophobia, or phonophobia. MBS were measured using a binary scale as 0= absent, 1= present. Participants who had score of 0 (MBS absent) were considered to have freedom from MBS. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 hours post-dose

  3. Percentage of Participants With Ability to Function Normally at 2 Hours Post-Dose

    Functional disability was defined as a functional disability level of mildly impaired, severely impaired, or required bedrest. Participants rated the level of disability they perceived as a result of their migraine in performing normal actions using following level of severity: normal function, mild impairment, severe impairment, or required bedrest. Percentage of participants with a response of "normal function" at the 2 hours post-dose were reported in this outcome measure. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 hours post-dose

  4. Percentage of Participants With Sustained Pain Relief From 2 to 24 Hours Post-Dose

    Sustained Pain relief from 2 to 24 hours post-dose was defined as a pain intensity of none or mild at all time points from 2 to 24 hours post-dose. Pain was measured on a 4-point Likert scale, with following scores: 0= none, 1= mild, 2= moderate, 3= severe. Participants with score of 0 (with no pain) through 2 to 24 hours post-dose were considered to have sustained pain relief. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 to 24 hours post-dose

  5. Percentage of Participants Who Used Rescue Medication Within 24 Hours Post-Dose

    Percentage of participants who used rescue medications within 24 hours of administration of study drug were reported in this outcome measure. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: Within 24 hours post-dose

  6. Percentage of Participants With Sustained Pain Relief From 2 to 48 Hours Post-Dose

    Sustained pain relief from 2 to 48 hours post-dose was defined as a pain intensity of none or mild at all time points from 2 to 48 hours post-dose. Pain was measured on a 4-point Likert scale, with following scores: 0= none, 1= mild, 2= moderate, 3= severe. Participants with score of 0 (with no pain) through 2 to 48 hours post-dose were considered to have sustained pain relief. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 to 48 hours post-dose

  7. Percentage of Participants With Absence of Photophobia at 2 Hours Post-Dose

    Photophobia (sensitivity to light) status was measured as absent or present in the electronic diary (eDiary). Freedom from photophobia was defined as photophobia absent. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 hours post-dose

  8. Percentage of Participants With Sustained Pain Freedom From 2 to 24 Hours Post-Dose

    Sustained pain freedom from 2 to 24 hours post-dose was defined as a pain intensity of none at all time points from 2 to 24 hours post-dose. Pain was measured on a 4-point Likert scale, with following scores: 0= none, 1= mild, 2= moderate, 3= severe. Participants with score of 0 (with no pain) through 2 to 24 hours post-dose were considered to have sustained pain freedom. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 to 24 hours post-dose

  9. Percentage of Participants With Freedom of Phonophobia at 2 Hours Post-Dose

    Phonophobia (sensitivity to sound) status was measured as absent or present in the eDiary. Freedom from phonophobia was defined as phonophobia absent. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 hours post-dose

  10. Percentage of Participants With Sustained Pain Freedom From 2 to 48 Hours Post-Dose

    Sustained pain freedom from 2 to 48 hours post-dose was defined as a pain intensity of none at all time points from 2 to 48 hours post-dose. Pain was measured on a 4-point Likert scale, with following scores: 0= none, 1= mild, 2= moderate, 3= severe. Participants with score of 0 (with no pain) through 2 to 48 hours post-dose were considered to have sustained pain freedom. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 to 48 hours post-dose

  11. Percentage of Participants With Freedom From Nausea at 2 Hours Post Dose

    Nausea status was measured as absent or present in the eDiary. Freedom from nausea was defined as nausea absent. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 hours post-dose

  12. Percentage of Participants With Pain Relapse From 2 to 48 Hours Post-Dose

    Pain relapse from 2 to 48 hours post-dose was defined as pain intensity of mild, moderate, or severe at any time point post-dose after 2 hours post-dose for the subset of participants with pain intensity of none at 2 hours post-dose. Pain levels were assessed on a 4-point scale (none, mild, moderate, severe) using the eDiary. Formal statistical hypothesis testing was planned only for rimegepant 75 mg group with controlling type 1 error by the prespecified hierarchical gate-keeping procedure. For rimegepant 25 mg, no formal statistical hypothesis testing was conducted for any outcome measures as pre-specified in SAP.

    Measured: 2 to 48 hours post-dose

  13. Number of Participants With Adverse Events (AEs) by Intensity

    An AE was defined as any new untoward medical occurrence or worsening of a pre-existing medical condition in a participants or clinical investigation participant administered an investigational (medicinal) product and that does not necessarily have a causal relationship with the treatment. AE intensity included mild, moderate and severe. Mild AE is defined as AEs which is usually transient and may require only minimal treatment or therapeutic intervention. The event were not generally interfered with usual activities of daily living. Moderate AE is defined as AEs which is usually alleviated with additional specific therapeutic intervention. The event interfered with usual activities of daily living, causing discomfort but poses no significant or permanent risk of harm to the participants. Severe AE is defined as AE that interrupts with usual activities of daily living, significantly affects clinical status, or may require intensive therapeutic intervention.

    Measured: From the day of signing informed consent up to end of treatment visit (approximately maximum up to 11 weeks)

  14. Number of Participants With Serious AEs

    A serious adverse event (SAE) was any untoward medical occurrence at any dose that: resulted in death; was life-threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/ incapacity; resulted in congenital anomaly/birth defect in the off spring who received rimegepant were considered an important medical event.

    Measured: From the day of signing informed consent up to end of treatment visit (approximately maximum up to 11 weeks)

  15. Number of Participants With Grade 3 to 4 Laboratory Test Abnormalities- Hematology

    Laboratory test abnormalities in hematology included: Eosinophils, Hemoglobin (high, low), Lymphocytes (high, low), Neutrophils, Platelets, White blood cell count (high, low). Laboratory abnormality events were graded according to National Cancer Institute Common Terminology Criteria For Adverse Events (NCI CTCAE) v5.0; grade 1=mild, grade 2=moderate, grade 3=severe, grade 4=life-threatening consequences and grade 5=death. Number of participants who had hematology parameter abnormality Grade 3 to 4 are reported in this outcome measure. Number of participants with non-zero laboratory abnormalities were reported in this outcome measure.

    Measured: Baseline (Day 1) up to End of treatment visit (within 7 days of treatment) [approximately maximum up to 7 weeks]

  16. Number of Participants With Grade 3 to 4 Laboratory Test Abnormalities- Serum Chemistry

    Laboratory test abnormalities in serum chemistry included: alanine aminotransferase, albumin, alkaline phosphatase, aspartate aminotransferase, bicarbonate, Bilirubin (total), calcium (high, low), cholesterol (total), creatine kinase, creatinine, estimated glomerular filtration rate (eGFR), Modification of Diet in Renal Disease (MDRD), glucose, (high, low), lactate dehydrogenase low density lipoprotein (LDL) cholesterol (fasting, non-fasting), potassium (high, low), sodium (high, low), triglycerides (fasting, non-fasting), uric acid. Laboratory abnormality events were graded according to NCI CTCAE v5.0; grade 1=mild, grade 2=moderate, grade 3=severe, grade 4=life-threatening consequences and grade 5=death. Number of participants who had serum chemistry parameter abnormality Grade 3 to 4 are reported in this outcome measure. Number of participants with non-zero laboratory abnormalities are reported in this outcome measure.

    Measured: Baseline (Day 1) up to End of treatment visit (within 7 days of treatment) [approximately maximum up to 7 weeks]

  17. Number of Participants With Grade 3 to 4 Laboratory Test Abnormalities- Urinalysis

    Laboratory test abnormalities in urinalysis included: Urine glucose, Urine protein, pH, specific gravity, ketones, nitrites, urobilinogen, leukocyte esterase, blood. If blood, protein or leukocytes are positive and determined clinically significant by the investigator, then the participants were returned for an unscheduled visit for microscopic examination. Laboratory abnormality events were graded according to NCI CTCAE v5.0; grade 1=mild, grade 2=moderate, grade 3=severe, grade 4=life-threatening consequences and grade 5=death. Number of participants who had urinalysis parameter abnormality Grade 3 to 4 are reported in this outcome measure. Number of participants with non-zero laboratory abnormalities are reported in this outcome measure.

    Measured: Baseline (Day 1) up to End of treatment visit (within 7 days of treatment) [approximately maximum up to 7 weeks]

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Jun 2022
  2. Study start9 Aug 2022
  3. Primary completion19 Jan 2024
  4. Study completion19 Jan 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
897 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05399459
Sponsor's protocol ID
BHV3000-313
Other IDs
C4951022
Status last verified
Feb 2025
First submitted
27 May 2022
Last updated
7 Mar 2025
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.

Publications

  • Ikeda K, Matsumori Y, Kudo M, Ishikawa T, Hoshino Y, Yoshimatsu H, Thiry A, Arakawa A, Croop R, Fullerton T, Sakai F, Takeshima T. Efficacy and safety of rimegepant for the acute treatment of migraine in Japan: A dose-ranging, double-blind, randomized controlled trial. Headache. 2025 Nov-Dec;65(10):1811-1820. doi: 10.1111/head.14994. Epub 2025 Jun 30.

    PubMed 40586377

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Rimegepant 25 MG and Rimegepant 75 MG in people with Migraine, run by Pfizer at 50 sites in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 50 sites in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 10 Feb 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Percentage of Participants Who Had Freedom From Pain at 2 Hours Post-Dose (time frame: 2 hours post-dose). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05399459, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Mar 2025.

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