A Long-Term Safety and Tolerability Extension Study Evaluating Atogepant for the Prevention of Chronic or Episodic Migraine
Public ClinicalTrials.gov record NCT04686136. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase 3, Multicenter, Open-Label 156-Week Extension Study To Evaluate The Long-Term Safety And Tolerability Of Oral Atogepant For The Prevention Of Migraine In Participants With Chronic Or Episodic Migraine
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study will evaluate the Long-Term Safety and Tolerability of Atogepant 60 mg daily for the Prevention of Migraine in Participants with Chronic or Episodic Migraine
Study identification
- NCT ID
- NCT04686136
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 596 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 80 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 19, 2021 (Actual)
- Primary completion
- Oct 20, 2025 (Actual)
- Completion
- Oct 20, 2025 (Actual)
- Last update posted
- Dec 18, 2025
2021 – 2025
United States locations
- U.S. sites
- 42
- U.S. states
- 24
- U.S. cities
- 38
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Duplicate_Barrow Neurological Institute /ID# 228217 | Phoenix | Arizona | 85013-4407 | — |
| California Headache and Balance Center /ID# 226241 | Fresno | California | 93720 | — |
| Duplicate_Pharmacology Research Institute (PRI) - Los Alamitos (Wake) /ID# 226404 | Los Alamitos | California | 90720-3500 | — |
| Pharmacology Research Institute (PRI) - Newport Beach (Wake) /ID# 226389 | Newport Beach | California | 92660 | — |
| Excell Research, Inc /ID# 228390 | Oceanside | California | 92056 | — |
| Duplicate_Schuster Medical Research Institute /ID# 226246 | Sherman Oaks | California | 91403 | — |
| Alpine Clinical Research Center /ID# 226203 | Boulder | Colorado | 80301-1880 | — |
| Sensible Healthcare /ID# 226426 | Ocoee | Florida | 34761 | — |
| Accel Research Sites - Tampa Clinical Research Unit /ID# 226252 | Tampa | Florida | 33634 | — |
| NeuroTrials Research Inc /ID# 226477 | Atlanta | Georgia | 30342 | — |
| Allied Physicians - Fort Wayne Neurological Center /ID# 226390 | Fort Wayne | Indiana | 46804 | — |
| Josephson-Wallack-Munshower Neurology - Northeast /ID# 226295 | Indianapolis | Indiana | 46256 | — |
| Collective Medical Research /ID# 226482 | Overland Park | Kansas | 66210 | — |
| Ochsner Clinic Foundation /ID# 228220 | Covington | Louisiana | 70433-8107 | — |
| Pharmasite Research, Inc. /ID# 226444 | Baltimore | Maryland | 21208 | — |
| Beth Israel Deaconess Medical Center /ID# 228214 | Boston | Massachusetts | 02215-5400 | — |
| BTC of New Bedford /ID# 226289 | New Bedford | Massachusetts | 02740 | — |
| Clinical Research Institute, Inc /ID# 226232 | Minneapolis | Minnesota | 55402-2606 | — |
| Headache Neurology Research Institute /ID# 226234 | Ridgeland | Mississippi | 39157 | — |
| StudyMetrix Research /ID# 226296 | City of Saint Peters | Missouri | 63303 | — |
| Clinvest Research LLC /ID# 226275 | Springfield | Missouri | 65807 | — |
| Methodist Physicians Clinic/CCT Research /ID# 226422 | Fremont | Nebraska | 68025 | — |
| Albuquerque Clinical Trials, Inc. /ID# 226523 | Albuquerque | New Mexico | 87102 | — |
| Albany Medical Center Rheumatology /ID# 228212 | Albany | New York | 12208-3412 | — |
| Headache Wellness Center /ID# 226233 | Greensboro | North Carolina | 27405 | — |
| Duplicate_CTI Clinical Research Center /ID# 226278 | Cincinnati | Ohio | 45212 | — |
| Stetson-University of Cincinnati /ID# 226326 | Cincinnati | Ohio | 45219 | — |
| Abington Neurological Associates - Abington /ID# 226449 | Abington | Pennsylvania | 19001 | — |
| Preferred Primary Care Physicians, Inc. /ID# 226447 | Pittsburgh | Pennsylvania | 15236 | — |
| Mount Vernon Clinical Research /ID# 226249 | Chattanooga | Tennessee | 37421 | — |
| CNS Healthcare - Memphis /ID# 226254 | Memphis | Tennessee | 38119 | — |
| FutureSearch Trials of Neurology /ID# 226424 | Austin | Texas | 78731 | — |
| Austin Clinical Trial Partners /ID# 228391 | Austin | Texas | 78737 | — |
| DiscoveResearch, Inc /ID# 226490 | Bryan | Texas | 77802 | — |
| Texas Neurology /ID# 226425 | Dallas | Texas | 75214 | — |
| LinQ Research, LLC /ID# 226391 | Pearland | Texas | 77584 | — |
| J. Lewis Research, Inc. / Foothill Family Clinic /ID# 226248 | Salt Lake City | Utah | 84109 | — |
| J. Lewis Research, Inc. Foothill Family Clinic South /ID# 226328 | Salt Lake City | Utah | 84121 | — |
| Highland Clinical Research /ID# 226287 | Salt Lake City | Utah | 84124 | — |
| Sentara Family Medicine Physicians /ID# 226448 | Virginia Beach | Virginia | 23456 | — |
| Northwest Clinical Research Center /ID# 226240 | Bellevue | Washington | 98007 | — |
| Puget Sound Neurology /ID# 226253 | Tacoma | Washington | 25328 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 74 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04686136, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 18, 2025 · Synced Nov 11, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT04686136 live on ClinicalTrials.gov.