MigrainePhase 3NCT07645924
A Study to Evaluate the Efficacy and Safety of Elismetrep (K-304) in the Acute Treatment of Migraine
A Phase 3 study testing Elismetrep in people with Migraine, run by TriGemX Bio, Inc. at 113 sites in United States.
Trial summary
This is a double-blind, randomized, multicenter, outpatient evaluation of the efficacy, safety, and tolerability of elismetrep, as compared with placebo, in the acute treatment of migraine. Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Migraine
- What is being tested?
- Elismetrep
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 1,800 participants
- Where
- 113 sitesUnited States
- Study dates
- 1 Jul 2026to Feb 2027
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
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 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 1. Be a male or female, age 18 to 75 years, inclusive, at the time of signing informed consent. 2. Has greater than a one-year history of migraine with or without aura as defined by International Headache Society criteria 1.1 and 1.2 and his/her migraines typically last between 4 to 72 hours, if untreated. 3. Has had ≥2 and ≤10 moderate or severe migraine attacks per month in each of the 2 months prior to screening (Visit 1). 4. Meet the following requirements:
- Is a male OR b. Is a female who is of non-childbearing potential defined by at least one of the following criteria: i. Postmenopausal as defined by one of the following:
- A minimum of 12 months of spontaneous amenorrhea or
- A minimum of 6 months of spontaneous amenorrhea with a screening serum follicle-stimulating hormone level > 40 mIU/mL or
- At least 6 weeks post bilateral oophorectomy (with or without hysterectomy). OR ii. Post hysterectomy or bilateral salpingectomy, based on the participant's recall of their medical history OR c. Is a female of reproductive potential and: i. Agrees to remain abstinent from heterosexual activity OR ii. Agrees to use (or have their partner use) a birth control method that is acceptable from the first dose of study drug until the End of Study visit.
- Acceptable methods of birth control are:
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- Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal, or transdermal).
- Progestogen-only hormonal contraception associated with inhibition of ovulation (oral; injectable; or implantable).
- Intrauterine device (IUD);
- Intrauterine hormone-releasing system (IUS);
- Bilateral tubal occlusion;
- Vasectomized partner;
- Progestogen-only oral hormonal contraception, where inhibition of ovulation is not the primary mode of action;
- Male or female condom with or without spermicide;
- Cap, diaphragm or sponge with spermicide; a combination of male condom with either cap, diaphragm or sponge with spermicide (double barrier methods).
- 5. Voluntarily agrees to participate in the study by giving written informed consent. 6. Is able to read, understand and complete the study questionnaires and eDiary. 7. Be willing and able to comply with the study schedule of visits, all trial procedures and restrictions. 8. Be willing to use their own personal, qualified smartphone to download study specific eDiary applications for use during the study.
Who cannot join
- Participants are excluded from the trial if any of the following criteria apply:
- Is a female who is pregnant, breast-feeding, or intends to become pregnant during the planned course of the trial.
- Migraine history-related
- Has difficulty distinguishing his/her migraine attacks from tension-type headaches.
- Has a history of predominantly mild migraine attacks or migraines that usually resolve spontaneously in less than 2 hours.
- Has more than 15 headache-days per month or has taken medication for acute headache on more than 10 days per month in any of the 3 months prior to screening (Visit 1).
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- Has brainstem (also known as basilar-type) or hemiplegic migraine headache, or retinal migraine.
- Was >50 years old at age of first migraine onset.
- Is taking migraine prophylactic medication where the prescribed dose has changed during the 3 months prior to screening (Visit 1) or anticipates any change during the study. Any withdrawal of preventive medications for the treatment of migraine should be completed at least 30 days prior to screening.
- Medical history related
- Has, in the opinion of the investigator, other confounding pain syndromes, psychiatric conditions such as uncontrolled major depression, history of psychosis, dementia, or significant neurological disorders other than migraine [Patients who are currently being treated with non-prohibited medication for depression and symptoms are well controlled, in the opinion of the investigator, are eligible to participate in this study].
- Is at imminent risk of self-harm, based on clinical interview and responses on the Columbia Suicidality Severity Rating Scale (C-SSRS), or of harm to others in the opinion of the investigator. Patients must be excluded if they report suicidal ideation with intent, with or without a plan (i.e., Type 4 or 5 on the C-SSRS) in the past 2 months or suicidal behavior in the past 6 months.
- Has a recent history (within the past 3 years of the screening visit) or current diagnosis or evidence of endocrine, hematological, immunological (including Sjogren's syndrome), renal, respiratory, neurologic, gastrointestinal, biliary, or genitourinary abnormalities or diseases or hepatic impairment that, per the investigator's judgement, may jeopardize the subject's safety or compliance with the protocol, or otherwise interfere with interpretation of efficacy and/or safety results.
- Has a history of malignant neoplasms within the past 5 years prior to screening. Basal and squamous cell skin cancer and any carcinoma in-situ are allowed if they have received treatment and follow-up consistent with local standard of care.
- Has a history with current evidence of uncontrolled, unstable or recently diagnosed cardiovascular disease, such as ischemic heart disease, coronary artery vasospasm, and cerebral ischemia. Patients with myocardial infarction, acute coronary syndrome, percutaneous coronary intervention, cardiac surgery, stroke or transient ischemic attack during the 6 months prior to screening.
- Has a history of human immunodeficiency virus disease.
- Has a history of gastric or small intestinal surgery (including gastric bypass surgery or banding but not including cholecystectomy or appendectomy) or has a disease that causes malabsorption or may otherwise alter the absorption of orally administered drugs (e.g. upper gastrointestinal dysmotility).
- Laboratory, vital sign, and electrocardiogram related
- Has a positive test result at screening for hepatitis B surface antigen, hepatitis C virus antibody.
- Has a screening estimated glomerular filtration rate estimated with the Modification of Diet in Renal Disease (MDRD) equation of <30 mL/min/1.73 m2.
- Has a screening result for alanine aminotransferase or aspartate aminotransferase of >2.0 X upper limit of normal (ULN) or total bilirubin >1.5 X ULN at the Screening visit. Note: An isolated bilirubin >1.5 X ULN is acceptable if bilirubin is fractionated and direct bilirubin is within the laboratory normal range.
- Has a mean value for triplicate corrected QT interval to Fridericia's formula (QTcF) >450 ms for males and >470 ms for females at screening.
- Has a mean value for triplicate seated systolic blood pressure >160 mmHg and/or diastolic blood pressure >95 mmHg measured after at least 5 minutes at rest at the Screening Visit. Note: If a participant's blood pressure is exclusionary on the first triplicate assessment at the Screening Visit, they may have one repeat triplicate blood pressure assessment at that visit after another rest of at least 10 minutes.
- Medication use and substance abuse related
- Has known history of or suspected abuse of alcohol or recreational drugs at Screening.
- Has use of soft drugs (such as marijuana or any substances containing tetrahydrocannabinol [THC] or cannabidiol [CBD] within 3 months prior to screening, or hard drugs (such as cocaine, illicit narcotics/opiates) within 6 months prior to screening.
- Has a positive drug screen at screening. Note:
- If benzodiazepines are detected on the drug screen, this is not exclusionary if they are prescribed a benzodiazepine for a therapeutic purpose (e.g., for insomnia) and confirmatory documentation is obtained from the prescribing physician.
- If amphetamines are detected on the drug screen, this is not exclusionary if the participant is taking a stimulant medication for a therapeutic purpose (e.g., Adderall for attention deficit hyperactivity disorder), confirmatory documentation is obtained from the prescribing physician, and the stimulant medication in question is known to be detected as amphetamine on the drug screen being used.
- Is currently in violation of study requirements for prohibited and permissible concomitant medications or treatments (not already specified in other criteria) or is anticipated to violate these requirements during study participation (detailed in the protocol). Note: Any use of the following within 8 weeks of the screening visit, or anticipated use at any point during study participation are exclusionary:
- Devices for the acute and/or preventative treatment of headache (migraine and/or other type of headache)
- Nerve blocks and/or trigger point injections for the acute and/or preventative treatment of headache (migraine and/or other type of headache).
- Has any use of prescription opiate medications within 14 days of screening or any anticipated/potential use of opiates during study participation.
- Has a history of use of ergotamine medications ≥10 days per month on a regular basis for ≥3 months prior to screening.
- Has a history of non-narcotic analgesic intake ≥15 days per month for ≥3 months prior to screening.
- Other
- Has known or suspected hypersensitivity to trial product(s) or related products.
- Has a history of multiple significant and/or any severe allergies (e.g., food, drug, latex allergy) or has had an anaphylactic reaction or significant intolerance to prescription or nonprescription drugs or food.
- Has any surgery scheduled for the duration of the trial.
- Has a screening hemoglobin <11.0 g/dL (males) or <10.0 g/dL (females) or has a known hemoglobinopathy (e.g., sickle cell anemia, hemolytic anemia).
- Has previous participation in this trial. Participation is defined as signed informed consent.
- Has participated in any clinical trial of an approved or non-approved investigational biological medicinal product (e.g., antibody therapy) within 90 days of screening or has participated in any clinical trial of an approved or non-approved investigational small molecule medicinal product within 30 days or 5 half-lives (whichever is longer) of screening or ever signed an informed consent for Study K-304 P004. Note: Patients may not be screened at more than one trial site for this study.
- Has any other disorder, unwillingness or inability, not covered by any of the other exclusion criteria, which in the investigator's opinion, might jeopardize the participant's safety or compliance with the protocol, or otherwise interfere with interpretation of efficacy and/or safety results.
- Is an employee or immediate family member (e.g., spouse, parent, child, sibling) of the Sponsor or study site.
Trial locations and contacts
113 sites in 1 country. Contact the study team or a site near you to ask about taking part.
113 sites in 1 country
United States113 sites, 113 recruiting
- Recruiting
Albuquerque Clinical Trials
Albuquerque, New Mexico, 87102
(505) 224-7407
- Recruiting
Lehigh Center for Clinical Research
Allentown, Pennsylvania, 18103
(818) 578-4555
- Recruiting
Dent Neuro Institute, Buffalo
Amherst, New York, 14226
(716) 250-2017
- Recruiting
Michigan Headache Pain & Neurological Institute
Ann Arbor, Michigan, 48104
(734) 677-6000 ext. Option 4
- Recruiting
DelRicht Research
Atlanta, Georgia, 30329
(770) 417-4454
- Recruiting
FutureSearch Trials of Neurology
Austin, Texas, 78731
(512) 380-9925
- Recruiting
Tekton Research
Austin, Texas, 78745
(512) 859-3834
- Recruiting
Physicians to Children & Adolescents, PSC (Kentucky Pediatric / Adult Research)
Bardstown, Kentucky, 40004
(502) 349-1569
- Recruiting
Central Research Associates, LLC (CRA) dba Flourish Research
Birmingham, Alabama, 35205
(205) 327-1077
- Recruiting
Boston Clinical Trials - Alcanza
Boston, Massachusetts, 02131
(843) 856-3784
- Recruiting
Pantheon Clinical Research
Bountiful, Utah, 84010
(385) 281-0550
- Recruiting
SPRI Clinical Trials, LLC
Brooklyn, New York, 11235
(646) 747-4060
- Recruiting
IMMUNOe Research Centers
Centennial, Colorado, 80112
(303) 771-9000
- Recruiting
Crescent City Headache & Neurology Center
Chalmette, Louisiana, 70043
(504) 418-6040
- Recruiting
TrialSphere
Chandler, Arizona, 85286
(623) 267-8314
- Recruiting
OnSite Clinical Solutions
Charlotte, North Carolina, 28277
(800) 785-3150
- Recruiting
WR-ClinSearch, LLC
Chattanooga, Tennessee, 37421
(423) 698-4584
- Recruiting
Cedar Crosse Research Center
Chicago, Illinois, 60607
(312) 431-6780
- Recruiting
Chicago Headache Center & Research Institute
Chicago, Illinois, 60657
(773) 935-1000
- Recruiting
StudyMetrix Research
City of Saint Peters, Missouri, 63303
(636) 387-5100
- Recruiting
MCB Clinical Research Centers
Colorado Springs, Colorado, 80910
(719) 634-6576
- Recruiting
Axiom Research, LLC
Colton, California, 92324
(909) 824-2325
- Recruiting
Hometown Research
Columbus, Ohio, 43228
(614) 362-3980
- Recruiting
True North Neurology
Commack, New York, 11725
(631) 364-9119
- Recruiting
ProScience Research Group
Culver City, California, 90230
(424) 227-8127
- Recruiting
APD Clinical Research
Cypress, Texas, 77372
(281) 315-4986
- Recruiting
Horizon Clinical Research and Gill Neuroscience
Cypress, Texas, 77429
(949) 491-0710
- Recruiting
FutureSearch Trials of Dallas, LP
Dallas, Texas, 75251
(214) 361-7700
- Recruiting
J. Lewis Research, Inc. / Foothill Family Clinic Draper
Draper, Utah, 84020
(801) 365-1032 ext. 3511
- Recruiting
OK Clinical Research, LLC
Edmond, Oklahoma, 73034
(405) 285-6811
- Recruiting
Leading Edge Research LA, LLC
Encino, California, 91316
(818) 578-4555
- Recruiting
Healthcare Research Network II, LLC
Flossmoor, Illinois, 60477
(708) 388-2245
- Recruiting
Advanced Neurosciences Research
Fort Collins, Colorado, 80528
(970) 226-6111
- Recruiting
Guildford Neurologic Research Partners, LLC
Greensboro, North Carolina, 27405
(336) 516-9103
- Recruiting
Headache Wellness Center
Greensboro, North Carolina, 27405
(336) 574-8000
- Recruiting
DelRicht Research
Gulfport, Mississippi, 39503
(228) 588-8268
- Recruiting
Healthcare Research Network
Hazelwood, Missouri, 63042
(314) 972-9600
- Recruiting
Victorium Clinical Research
Houston, Texas, 77024
(832) 203-7026
- Recruiting
DM Clinical Research
Houston, Texas, 77081
(346) 550-9559
- Recruiting
Axiom Research, Orange County
Irvine, California, 92604
(909) 824-2325
- Recruiting
AMR Clinical - Kansas City
Kansas City, Missouri, 64114
(816) 643-4153
- Recruiting
Clinical Investigation Specialists, Inc.
Kenosha, Wisconsin, 53144
(847) 406-8080
- Recruiting
GMG Clinical Research, LLC dba Radiance Clinical Research
Lampasas, Texas, 76550
(512) 556-4130
- Recruiting
IMA Clinical Research - Las Vegas
Las Vegas, Nevada, 89102
(702) 527-7401
- Recruiting
Excel Clinical Research
Las Vegas, Nevada, 89109
(702) 680-1500
- Recruiting
Wake Research Las Vegas Rainbow
Las Vegas, Nevada, 89118
(702) 893-8968
- Recruiting
AMR Clinical - Las Vegas
Las Vegas, Nevada, 89119
(702) 529-0153
- Recruiting
Redbird Research
Las Vegas, Nevada, 89119
(702) 577-2000
- Recruiting
AMR Clinical - Lexington
Lexington, Kentucky, 40509
(859) 264-8999
- Recruiting
CTI Clinical Research Center
Lexington, Kentucky, 45212
(513) 721-3868
- Recruiting
Arkansas Clinical Research
Little Rock, Arkansas, 72205
(501) 480-5088
- Recruiting
Downtown L.A. Research Center, Inc.
Los Angeles, California, 90017
(213) 261-3680
- Recruiting
Clinical Research Institute
Los Angeles, California, 90048
(323) 879-9999
- Recruiting
Central New York Clinical Research
Manlius, New York, 13104
(315) 682-3263
- Recruiting
Drug Studies America
Marietta, Georgia, 30060
(678) 581-5252
- Recruiting
Hometown Research
Milford, Ohio, 45150
(513) 831-5900
- Recruiting
Clinical Research Institute
Minneapolis, Minnesota, 55402
(612) 333-2200 ext. 5
- Recruiting
M3 Wake Research - Mission Mental Health (WR-MMH)
Mission Viejo, California, 92691
(949) 752-7910
- Recruiting
AMR Mobile
Mobile, Alabama, 36608
(251) 901-2127
- Recruiting
Frontier Clinical Research
Morgantown, West Virginia, 26505
(304) 241-1648
- Recruiting
Chicago Headache Center & Research Institute
Naperville, Illinois, 60563
(415) 397-0700
- Recruiting
Access Clinical Trials, Inc
Nashville, Tennessee, 37203
(615) 320-6076
- Recruiting
Clinical Research Associates, Inc.
Nashville, Tennessee, 37203
(615) 329-0197
- Recruiting
DelRicht Research
New Orleans, Louisiana, 70115
(504) 336-2667
- Recruiting
Fieve Clinical Research, Inc
New York, New York, 10017
(212) 772-3570
- Recruiting
Health Research of Hampton Roads, Inc. (HRHR)
Newport News, Virginia, 23606
(757) 591-8100
- Recruiting
AMR Clinical - Norfolk
Norfolk, Virginia, 23502
(757) 614-1001
- Recruiting
Coastal Carolina Research Center
North Charleston, South Carolina, 29405
(843) 856-3784
- Recruiting
Las Vegas Clinical Trials
North Las Vegas, Nevada, 89030
(702) 637-3223
- Recruiting
Excell Research
Oceanside, California, 92056
(760) 758-2222
- Recruiting
Advanced Research Institute
Ogden, Utah, 84405
(801) 409-2040
- Recruiting
Hightower Clinical
Oklahoma City, Oklahoma, 73102
(405) 479-8331
- Recruiting
Collective Medical Research
Overland Park, Kansas, 66212
(913) 381-7180
- Recruiting
Clinical Associates Midwest, LLC
Overland Park, Kansas, 66214
(913) 359-5699
- Recruiting
Clinical Research Philadelphia
Philadelphia, Pennsylvania, 19114
(215) 676-6696
- Recruiting
Headlands Research - PharmaSite
Pikesville, Maryland, 21208
(410) 602-1440
- Recruiting
Preferred Primary Care Physicians, Inc.
Pittsburgh, Pennsylvania, 15236
(412) 650-6155
- Recruiting
Aim Trials, LLC
Plano, Texas, 75093
(214) 856-2778
- Recruiting
Empire Clinical Research
Pomona, California, 91767
(909) 981-5321
- Recruiting
The Neurology Group
Pomona, California, 91767
(909) 982-2719 ext. 603
- Recruiting
Summit Research Network
Portland, Oregon, 97210
(855) 367-8834
- Recruiting
Advanced Research Institute - Portland
Portland, Oregon, 97223
(503) 610-0033
- Recruiting
Eximia Research - NC, LLC
Raleigh, North Carolina, 27607
(919) 800-5154
- Recruiting
Advanced Research Institute - Reno
Reno, Nevada, 89511
(775) 502-1616
- Recruiting
Proven Endpoints
Ridgeland, Mississippi, 39157
(601) 790-1811
- Recruiting
Artemis Institute for Clinical Research
Riverside, California, 92503
(855) 367-8834
- Recruiting
Granger Medical Clinic
Riverton, Utah, 84096
(801) 302-1769
- Recruiting
Rochester Clinical Research
Rochester, New York, 14609
(585) 288-0890
- Recruiting
J. Lewis Research, Inc. / Foothill Family Clinic
Salt Lake City, Utah, 84109
(801) 486-3021 ext. 3315
- Recruiting
J. Lewis Research, Inc. / Foothill Family Clinic
Salt Lake City, Utah, 84121
(801) 365-1032 ext. 3538
- Recruiting
Acclaim Clinical Research
San Diego, California, 92120
(855) 367-8834
- Recruiting
Frontier Clinical Research, LLC
Scottdale, Pennsylvania, 15683
(724) 220-5281
- Recruiting
Seattle Clinical Research Center
Seattle, Washington, 98104
(206) 522-3330
- Recruiting
Carolina Research Center, Inc
Shelby, North Carolina, 28150
(704) 487-5228
- Recruiting
CenExel Sherman Oaks CA (California Neuroscience Research)
Sherman Oaks, California, 91403
(818) 990-2671
- Recruiting
Frontier Clinical Research, LLC
Smithfield, Pennsylvania, 15478
(724) 569-8036
- Recruiting
Encompass Clinical Research
Spring Valley, California, 91978
(619) 660-9068
- Recruiting
Clinvest Headlands LLC
Springfield, Missouri, 65807
(417) 883-7889
- Recruiting
Sundance Clinical Research
St Louis, Missouri, 63141
(314) 567-3377
- Recruiting
Sleep Care Research Institute d/b/a Clinical Research Atlanta-Stockbridge
Stockbridge, Georgia, 30281
(770) 626-0177
- Recruiting
DelRicht Research
Tulsa, Oklahoma, 74133
(918) 932-2276
- Recruiting
Sunwise Clinical Research
Walnut Creek, California, 94596
(925) 298-5147
- Recruiting
Diablo Clinical Research
Walnut Creek, California, 94598
(925) 930-7267
- Recruiting
MedVadis Research Corporation, LLC
Waltham, Massachusetts, 02451
(781) 373-2940
- Recruiting
Chase Medical Research, LLC
Waterbury, Connecticut, 06708
(203) 419-4404
- Recruiting
Clinpoint Trials
Waxahachie, Texas, 75165
(972) 937-1640
- Recruiting
CincyScience
West Chester, Ohio, 45069
(513) 646-4864
- Recruiting
Kinetic Clinical Research
West Covina, California, 91790
(657) 230-7120
- Recruiting
Integrated Clinical Trials Solution
West Des Moines, Iowa, 50265
(515) 223-2300
- Recruiting
Focus Clinical Research
West Hills, California, 91307
(818) 253-8966
- Recruiting
Heartland Research Associates, LLC - An AMR Company
Wichita, Kansas, 67207
(316) 689-6635
- Recruiting
Upstate Clinical Research Associates
Williamsville, New York, 14221
(716) 626-6320
- Recruiting
Tekton Research, Inc.
Yukon, Oklahoma, 73099
(405) 281-3433
About this study
Official title: A Phase III, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study of Elismetrep (K-304) in the Acute Treatment of Migraine
This is a double-blind, randomized, multicenter, outpatient evaluation of the efficacy, safety, and tolerability of elismetrep, as compared with placebo, in the acute treatment of migraine.
- Conditions
- Migraine
- Being tested
- Elismetrep, Placebo
- Medical subject headings
- Migraine Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ElismetrepDrug
Also called K-304
Administered orally
PlaceboDrug
Administered orally
| Study group | Role | What they receive |
|---|---|---|
| Elismetrep 10 mg | Experimental | Not described Receives: Drug: Elismetrep |
| Elismetrep 20 mg | Experimental | Not described Receives: Drug: Elismetrep |
| Placebo | Placebo comparator | Not described Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Pain freedom at 2 hours post-dose
Percentage of participants that report no pain at 2 hours post-dose. Pain will be measured on a 4-point Likert scale (0=none, 1=mild, 2=moderate, 3=severe).
Measured: Two hours post-dose
Freedom from most bothersome symptoms (MBS) at 2 hours post-dose
Percentage of participants that report absence of their MBS (nausea, phonophobia, or photophobia) at 2 hours post-dose. MBS will be measured using a binary scale (0=absent, 1=present).
Measured: Two hours post-dose
Secondary outcomes (14)
Pain relief at 2 hours post-dose
Percentage of participants that report a pain level of moderate of severe (responses of 2 or 3 on the 4-point Likert scale) at baseline and then report a pain level of none or mild (responses of 0 or 1 on the 4-point Likert scale) at 2 hours post-dose.
Measured: Two hours post-dose
Sustained pain freedom from 2 to 48 hours post-dose
Percentage of participants that do not use any rescue medication, do not experience any headache pain through the time period of interest, and do not have missing pain data at 2, 24, or 48hours post-dose.
Measured: From 2 to 48 hours post-dose
Freedom from functional disability at 2 hours post-dose
Percentage of participants that self-report as being able to function normally on the functional disability scale in the subset of participants that reported any level of disability at baseline. The scale has a 4-point numeric rating: normal (0); mildly impaired (1); moderately impaired (2); severely impaired, requires bedrest (3).
Measured: Two hours post-dose
Pain relief at 60 minutes post-dose
Percentage of participants that report a pain level of moderate of severe (responses of 2 or 3 on the 4-point Likert scale) at baseline and then report a pain level of none or mild (responses of 0 or 1 on the 4-point Likert scale) at 60 minutes post-dose
Measured: Sixty minutes post-dose
Proportion requiring rescue medication within 24 hours post-dose
Percentage of participants that take rescue medication within 24 hours post-dose.
Measured: Within 24 hours post-dose
Freedom from photophobia at 2 hours post-dose
Percentage of participants that report the absence of photophobia at 2 hours post-dose in the subset of participants that reported the presence of photophobia at baseline.
Measured: Two hours post-dose
Freedom from phonophobia at 2 hours post-dose
Percentage of participants that report the absence of phonophobia at 2 hours post-dose in the subset of participants that reported the presence of phonophobia at baseline.
Measured: Two hours post-dose
Freedom from nausea at 2 hours post-dose
Percentage of participants that report the absence of nausea at 2 hours post-dose in the subset of participants that reported the presence of nausea at baseline.
Measured: Two hours post-dose
Sustained pain freedom from 2 to 24 hours post-dose
Percentage of participants that do not use any rescue medication, do not experience any headache pain through the time period of interest, and do not have missing pain data at 2 or 24 hours post-dose.
Measured: From 2 to 24 hours post-dose
Sustained pain relief from 2 to 48 hours post-dose
Percentage of participants that do not use any rescue medications, do not experience any moderate or severe headache pain through the time period of interest, and do not have missing pain data at 2, 24, or 48 hours post-dose.
Measured: From 2 to 48 hours post-dose
Sustained pain relief from 2 to 24 hours post-dose
Percentage of participants that do not use any rescue medications, do not experience any moderate or severe headache pain through the time period of interest, and do not have missing pain data at 2 or 24 hours post-dose.
Measured: From 2 to 24 hours post-dose
Pain relapse from 2 to 48 hours post-dose
Percentage of participants that are pain free at 2 hours post-dose and have (a) mild, moderate, or severe pain (response of 1, 2, or 3 on the 4-point Likert scale) at any time point after 2 hours post-dose, or (b) missing pain data at 24 hours or 48 hours after 2 hours post-dose, or (c) intervening rescue medication use at or before 48 hours post-dose.
Measured: From 2 to 48 hours post-dose
Percentage of participants who experience one or more treatment-emergent adverse events (AEs)
Measured: Up to 8 days post-dose
Percentage of participants who experience one or more treatment-emergent serious adverse events (SAEs)
Measured: Up to 8 days post-dose
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Jun 2026
- Study start1 Jul 2026
- Primary completionFeb 2027 (estimated)
- Study completionFeb 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for MigraineStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 1,800 participants (estimated)
Sponsor and investigators
- Lead sponsor
- TriGemX Bio, Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07645924
- Sponsor's protocol ID
- K-304 P003
- Status last verified
- Aug 2026
- First submitted
- 9 Jun 2026
- Last updated
- 2 Nov 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 2 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase III, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study of Elismetrep (K-304) in the Acute Treatment of Migraine
- ClinicalTrials.gov ID
- NCT07645924
- Acronym / sponsor ID
- K-304 P003
- Conditions
- Migraine
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 1,800 participants (estimated)
- Lead sponsor
- TriGemX Bio, Inc.Industry (pharma, biotech, devices)
- Study start
- 1 Jul 2026 (actual)
- Primary completion
- Feb 2027 (estimated)
- Study completion
- Feb 2027 (estimated)
- First posted
- 12 Jun 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a double-blind, randomized, multicenter, outpatient evaluation of the efficacy, safety, and tolerability of elismetrep, as compared with placebo, in the acute treatment of migraine.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Elismetrep 10 mg | Experimental | Drug: Elismetrep |
| Elismetrep 20 mg | Experimental | Drug: Elismetrep |
| Placebo | Placebo comparator | Drug: Placebo |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (16 listed)
- 1. Be a male or female, age 18 to 75 years, inclusive, at the time of signing informed consent. 2. Has greater than a one-year history of migraine with or without aura as defined by International Headache Society criteria 1.1 and 1.2 and his/her migraines typically last between 4 to 72 hours, if untreated. 3. Has had ≥2 and ≤10 moderate or severe migraine attacks per month in each of the 2 months prior to screening (Visit 1). 4. Meet the following requirements:
- Is a male OR b. Is a female who is of non-childbearing potential defined by at least one of the following criteria: i. Postmenopausal as defined by one of the following:
- A minimum of 12 months of spontaneous amenorrhea or
- A minimum of 6 months of spontaneous amenorrhea with a screening serum follicle-stimulating hormone level > 40 mIU/mL or
- At least 6 weeks post bilateral oophorectomy (with or without hysterectomy). OR ii. Post hysterectomy or bilateral salpingectomy, based on the participant's recall of their medical history OR c. Is a female of reproductive potential and: i. Agrees to remain abstinent from heterosexual activity OR ii. Agrees to use (or have their partner use) a birth control method that is acceptable from the first dose of study drug until the End of Study visit.
Key exclusion criteria (44 listed)
- Is a female who is pregnant, breast-feeding, or intends to become pregnant during the planned course of the trial.
- Migraine history-related
- Has difficulty distinguishing his/her migraine attacks from tension-type headaches.
- Has a history of predominantly mild migraine attacks or migraines that usually resolve spontaneously in less than 2 hours.
- Has more than 15 headache-days per month or has taken medication for acute headache on more than 10 days per month in any of the 3 months prior to screening (Visit 1).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ElismetrepAlso: K-304Administered orally | Drug | Elismetrep 10 mg, Elismetrep 20 mg |
| PlaceboAdministered orally | Drug | Placebo |
Primary outcome
Pain freedom at 2 hours post-dose
Time frame: Two hours post-dose
Percentage of participants that report no pain at 2 hours post-dose. Pain will be measured on a 4-point Likert scale (0=none, 1=mild, 2=moderate, 3=severe).
Freedom from most bothersome symptoms (MBS) at 2 hours post-dose
Time frame: Two hours post-dose
Percentage of participants that report absence of their MBS (nausea, phonophobia, or photophobia) at 2 hours post-dose. MBS will be measured using a binary scale (0=absent, 1=present).
14 secondary outcomes
Pain relief at 2 hours post-dose
Time frame: Two hours post-dose
Sustained pain freedom from 2 to 48 hours post-dose
Time frame: From 2 to 48 hours post-dose
Freedom from functional disability at 2 hours post-dose
Time frame: Two hours post-dose
Pain relief at 60 minutes post-dose
Time frame: Sixty minutes post-dose
Proportion requiring rescue medication within 24 hours post-dose
Time frame: Within 24 hours post-dose
Freedom from photophobia at 2 hours post-dose
Time frame: Two hours post-dose
Freedom from phonophobia at 2 hours post-dose
Time frame: Two hours post-dose
Freedom from nausea at 2 hours post-dose
Time frame: Two hours post-dose
Sustained pain freedom from 2 to 24 hours post-dose
Time frame: From 2 to 24 hours post-dose
Sustained pain relief from 2 to 48 hours post-dose
Time frame: From 2 to 48 hours post-dose
Sustained pain relief from 2 to 24 hours post-dose
Time frame: From 2 to 24 hours post-dose
Pain relapse from 2 to 48 hours post-dose
Time frame: From 2 to 48 hours post-dose
Percentage of participants who experience one or more treatment-emergent adverse events (AEs)
Time frame: Up to 8 days post-dose
Percentage of participants who experience one or more treatment-emergent serious adverse events (SAEs)
Time frame: Up to 8 days post-dose
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Nov 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
113 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Elismetrep in people with Migraine, run by TriGemX Bio, Inc. at 113 sites in United States.
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 16 inclusion and 44 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: looking for participants now, as of the sponsor's last update on 2 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 113 sites in United States. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Annemarie Vance (917-336-3654, annemarie@kallyope.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Pain freedom at 2 hours post-dose (time frame: Two hours post-dose). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 2 Nov 2026.