RecruitingAcute Migraine
A Long-Term Safety Study of Elismetrep (K-304) in the Acute Treatment of Migraine
Eligible age
18+ yrs
Accepts
All genders
Locations
34 states
Healthy volunteers
No
See if you qualify for this study
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About this study
This is a long-term safety study to evaluate the safety and tolerability of intermittent use of elismetrep in the acute treatment of migraine attacks.
Sponsor: Kallyope Inc.
You may qualify if…
- ✓ 1. Participant completing an acute treatment trial of elismetrep (Study K-304 P003; attending the EoS Visit 3 within the allowed visit window of the acute treatment study), treated a qualifying migraine in that study, was at least 80% compliant with the daily e-Diary 'check-ins' in the base study and completed the 2-hour and 4-hour post-dose assessments in the eDiary;
- ✓ 2. Participant voluntarily agrees to participate in the study by giving written informed consent;
- ✓ 3. Participant is able to read, understand, and complete the study questionnaires and diary;
- ✓ 4. Participant is willing and able to comply with the study schedule of visits, all trial procedures and restrictions;
- ✓ 5. Participant is willing to use his/her own personal, qualified smartphone to download any specific eDiary applications for use for the entire duration of the study;
- ✓ 6. For females of reproductive potential (as determined in the base study), continues to agree to remain abstinent from heterosexual activity or a. Agrees to use (or have their partner use) a birth control method that is acceptable from the first dose of study drug until the EoS visit.
- ✓ Acceptable methods of birth control are:
- ✓ i. Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation: oral, intravaginal, transdermal. ii. Progestogen-only hormonal contraception associated with inhibition of ovulation: oral; injectable; implantable; intrauterine device; intrauterine hormone-releasing system; bilateral tubal occlusion; vasectomized partner; sexual abstinence\*; 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).
You may not qualify if…
- ✕ 1. Is a female who is pregnant, breast-feeding, or intends to become pregnant during the planned course of the study. Note: Participants must have a negative urine pregnancy result at the base study EoS/Visit 3 (i.e., pre-randomization for this study);
- ✕ 2. Has, at the time of the base study EoS/Visit 3, had any change in medical history or a laboratory finding since screening in the acute treatment study that in the opinion of the investigator renders the participant unsuitable for this study (e.g., development of a finding that would have precluded participation in the base acute treatment study);
- ✕ 3. Participant is at imminent risk of self-harm, based on clinical interview and responses on the Columbia Suicidality Severity Rating Scale (C-SSRS) taken during the base study E0S/Visit 3, or of harm to others in the opinion of the investigator. Participants 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 'since last version' version of the C-SSRS;
- ✕ 4. Participant is currently in violation of study requirements for prohibited and permissible concomitant medications (not already specified in other criteria or is anticipated to violate these requirements during trial participation) as assessed for the base study E0S/Visit 3;
- ✕ 5. Has any major surgery scheduled for the duration of the trial;
- ✕ 6. Has any other 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 the interpretation of efficacy and/or safety results;
- ✕ 7. At Visit 1, has an open/ongoing adverse event from the base study EoS visit;
- ✕ 8. Experienced a serious adverse event in the base study;
Where it's recruiting
Alabama
Birmingham · Mobile
Arizona
Chandler
Arkansas
Little Rock
California
Colton · Culver City · Encino · Irvine …
Colorado
Centennial · Colorado Springs · Fort Collins
Connecticut
Waterbury
Georgia
Atlanta · Marietta · Stockbridge
Illinois
Chicago · Flossmoor · Naperville
Iowa
West Des Moines
Kansas
Overland Park · Wichita
Kentucky
Bardstown · Lexington · Louisville
Louisiana
Chalmette · New Orleans
Source: ClinicalTrials.gov · NCT07674654 · last updated 2026-08-06