Episodic MigrainePhase 3NCT05028569
Study of BOTOX Injections in Prevention of Migraine in Adult Participants With Episodic Migraine
A Phase 3 study testing BOTOX in people with Episodic Migraine, run by AbbVie at 133 sites in 9 countries.
Trial summary
Migraine is a neurological disease characterized by moderate or severe headache, associated with nausea, vomiting, and/or sensitivity to light and sound (International Classification of Headache Disorders, 2018). Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Episodic Migraine
- What is being tested?
- BOTOX
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 775 participants
- Where
- 133 sitesin 9 countries
- Study dates
- 5 Nov 2021to 6 Nov 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 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- History of migraine headache disorder meeting International Classification of Headache Disorders (ICHD)-3 diagnostic criteria for migraine with aura or migraine without aura for >= 12 months.
- Onset of migraine before 50 years of age.
- History of 6 to 14 migraine days/month in each of the 3 months prior to Visit 1.
- Six to 14 migraine/probable migraine days during the 4-week screening/baseline phase.
- Less than 15 headache days/month in each of the 3 months prior to Visit 1 and during the 4-week screening/baseline phase.
Who cannot join
- Current diagnosis of chronic migraine according to ICHD-3.
- History or current diagnosis of migraine with brainstem aura, retinal migraine, complications of migraine, chronic tension-type headache, trigeminal autonomic cephalalgias, hypnic headache, hemicrania continua, or new daily persistent headache.
- History of headache attributed to another disorder (e.g., cervical dystonia, craniotomy, head/neck trauma) with exception that medication overuse headache per ICHD-3 criteria is allowed.
- History of inadequate response to > 4 prophylactic treatment for migraine, 2 of which have different mechanisms of action.
- Female who is pregnant, breastfeeding, or considering becoming pregnant during the study or within 90 days after the last dose of study drug.
Trial locations and contacts
133 sites in 9 countries.
133 sites in 9 countries
United States82 sites
Abington Neurological Associates - Abington /ID# 231798
Abington, Pennsylvania, 19001
Albuquerque Clinical Trials, Inc. /ID# 231101
Albuquerque, New Mexico, 87102
Lehigh Center for Clinical Research /ID# 231355
Allentown, Pennsylvania, 18103
Duplicate_Accellacare - McFarland Clinic /ID# 231496
Ames, Iowa, 50010
Duplicate_Dent Neurosciences Research Center, Inc. /ID# 252442
Amherst, New York, 14226
Michigan Headache & Neurological Institute (MHNI) /ID# 230659
Ann Arbor, Michigan, 48104-5131
Austin Clinical Trial Partners /ID# 231092
Austin, Texas, 78737
Northwest Clinical Research Center /ID# 231336
Bellevue, Washington, 98007
Neurology Offices of South Florida, PLLC /ID# 232281
Boca Raton, Florida, 33428-2231
Northwest Clinical Trials /ID# 230657
Boise, Idaho, 83704
Brigham and Women's Faulkner Hospital /ID# 231865
Boston, Massachusetts, 02130-3446
Boston Clinical Trials /ID# 231367
Boston, Massachusetts, 02131-2515
Nova Clinical Research, LLC /ID# 245256
Bradenton, Florida, 34209-4616
Minneapolis Clinic of Neurology - Burnsville /ID# 231780
Burnsville, Minnesota, 55337-6732
Hope Clinical Research /ID# 232189
Canoga Park, California, 91303
Clinical Trials of SC /ID# 231369
Charleston, South Carolina, 29406
Charlottesville Medical Research /ID# 231368
Charlottesville, Virginia, 22911
Duplicate_Duplicate_University Of Cincinnati Medical Center /ID# 231739
Cincinnati, Ohio, 45267-0585
StudyMetrix Research /ID# 230642
City of Saint Peters, Missouri, 63303
Colorado Springs Neurological Associates (CSNA) /ID# 230662
Colorado Springs, Colorado, 80907
Ochsner Clinic Foundation /ID# 230645
Covington, Louisiana, 70433-8107
Texas Neurology /ID# 230661
Dallas, Texas, 75214
Accel Research Sites Neurostudies /ID# 230665
Decatur, Georgia, 30030-2627
CenExcel iResearch LLC /ID# 231335
Decatur, Georgia, 30030
Pharmacology Research Institute (PRI) - Encino (Wake) /ID# 231351
Encino, California, 91316
Summit Headache and Neurologic Institute /ID# 231809
Englewood, Colorado, 80113-3781
Integrated Neurology Services - Falls Church /ID# 244776
Falls Church, Virginia, 22043-2367
Advanced Neurosciences Research, LLC /ID# 230658
Fort Collins, Colorado, 80528
Duplicate_Neuro Pain Medical Center /ID# 231478
Fresno, California, 93710-5473
Headache Wellness Center /ID# 230819
Greensboro, North Carolina, 27405
Velocity Clinical Research - Hallandale Beach /ID# 232442
Hallandale, Florida, 33009-4427
Neurology and Neurodiagnostics of Alabama /ID# 231918
Hoover, Alabama, 35244-5700
NeuroCare Plus /ID# 252499
Houston, Texas, 77094-1385
Rehabilitation & Neurological Services /ID# 252441
Huntsville, Alabama, 35805-4046
Sun Valley Research Center /ID# 231350
Imperial, California, 92251-9401
Josephson-Wallack-Munshower Neurology - Northeast /ID# 230654
Indianapolis, Indiana, 46256
CNS Healthcare - Jacksonville /ID# 231345
Jacksonville, Florida, 32256-6039
Frontier Clinical Research - Kingwood /ID# 234127
Kingwood, West Virginia, 26537-9797
Excel Clinical Research /ID# 232188
Las Vegas, Nevada, 89109
Arkansas Clinical Research /ID# 231640
Little Rock, Arkansas, 72205
Woodland International Research Group /ID# 231492
Little Rock, Arkansas, 72211
Wake Research - Pharmacology Research Institute (WR-PRI), LLC (Alamitos) /ID# 231908
Los Alamitos, California, 90720
Suburban Research Associates - Media /ID# 231354
Media, Pennsylvania, 19063-1760
Clinical Neuroscience Solutions - Memphis /ID# 231328
Memphis, Tennessee, 38119
Velocity Clinical Research - Boise /ID# 230660
Meridian, Idaho, 83642
Brainstorm Research /ID# 243825
Miami, Florida, 33176-2315
Nashville Neuroscience Group /ID# 231642
Nashville, Tennessee, 37203
Fieve Clinical Research, Inc. /ID# 231365
New York, New York, 10017-1921
Deaconess Clinic - Gateway Health Center /ID# 231329
Newburgh, Indiana, 47630
Pharmacology Research Institute (PRI) - Newport Beach (Wake) /ID# 231337
Newport Beach, California, 92660
Coastal Carolina Research Center - North Charleston /ID# 231353
North Charleston, South Carolina, 29405
Las Vegas Clinical Trials /ID# 232628
North Las Vegas, Nevada, 89030-7187
Sensible Healthcare /ID# 231340
Ocoee, Florida, 34761
IPS Research Company /ID# 231085
Oklahoma City, Oklahoma, 73106
Lynn Institute of Oklahoma City /ID# 231349
Oklahoma City, Oklahoma, 73112
Cutting Edge Research Group /ID# 231095
Oklahoma City, Oklahoma, 73116-1423
Sooner Clinical Research /ID# 231096
Oklahoma City, Oklahoma, 73116
Clinical Neuroscience Solutions, Inc /ID# 231362
Orlando, Florida, 32801-2986
Kansas Institute of Research /ID# 231862
Overland Park, Kansas, 66211-1363
Jefferson Hospital for Neuroscience /ID# 230664
Philadelphia, Pennsylvania, 19107-5191
Alea Research /ID# 233329
Phoenix, Arizona, 85012-2707
Duplicate_Barrow Neurological Institute /ID# 231799
Phoenix, Arizona, 85013-4407
M3 Wake Research Inc. /ID# 232285
Raleigh, North Carolina, 27612-8106
Robbins Headache Clinic /ID# 230970
Riverwoods, Illinois, 60015-5711
Clinical Endpoints /ID# 232625
Scottsdale, Arizona, 85258-4595
Duplicate_Frontier Clinical Research /ID# 232623
Smithfield, Pennsylvania, 15478
Clinvest Research LLC /ID# 252440
Springfield, Missouri, 65807
Clinical Research Institute /ID# 239517
Stockbridge, Georgia, 30281
Pain Relief Centers /ID# 232415
Sun City Center, Florida, 33573-6828
Puget Sound Neurology /ID# 230640
Tacoma, Washington, 25328
University of South Florida- Neuroscience Institute /ID# 231808
Tampa, Florida, 33613
Olympian Clinical Research - Tampa /ID# 239519
Tampa, Florida, 33615
Accel Research Sites - Tampa Clinical Research Unit /ID# 231670
Tampa, Florida, 33634
Montefiore Headache Center /ID# 232130
The Bronx, New York, 10461-2720
Tucson Neuroscience Research /ID# 232288
Tucson, Arizona, 85710-6152
Tidewater Integr Med Research /ID# 231359
Virginia Beach, Virginia, 23451
Sentara Neurology Specialists - Virginia Beach /ID# 231341
Virginia Beach, Virginia, 23456-0019
Georgetown University Hospital /ID# 232129
Washington D.C., District of Columbia, 20007
Premiere Research Institute - Palm Beach /ID# 230646
West Palm Beach, Florida, 33407-3209
Upstate Clinical Research Associates /ID# 231343
Williamsville, New York, 14221-6046
Neurology - Triad /ID# 231733
Winston-Salem, North Carolina, 27103-6984
Conquest Research /ID# 232604
Winter Park, Florida, 32789
Germany10 sites
Zentrum für Neurologie, Neurochirurgie und Psychiatrie /ID# 232472
Berlin, 10117
Universitaetsklinikum Carl Gustav Carus Dresden /ID# 239283
Dresden, Saxony, 01307
Praxis Dr. Gendolla /ID# 232474
Essen, 45133
Universitaetsklinikum Essen /ID# 232478
Essen, 45147
Duplicate_Kopfschmerzzentrum Frankfurt /ID# 234066
Frankfurt am Main, Hesse, 65929
Universitaetsklinikum Halle (Saale) /ID# 241506
Halle, 06120
Vitos Orthopaedische Klinik Kassel gemeinnuetzige GmbH /ID# 232475
Kassel, 34131
Schmerzklinik Kiel /ID# 232480
Kiel, Schleswig-Holstein, 24149
Duplicate_Neurologie Klinikum Großhadern /ID# 232479
Munich, Bavaria, 81344
Universitaetsmedizin Rostock /ID# 232471
Rostock, Mecklenburg-Vorpommern, 18057
Poland8 sites
Silmedic Sp. z o.o. /ID# 232358
Katowice, Silesian Voivodeship, 40-282
Specjalistyczne Gabinety Sp. z o.o. /ID# 233526
Krakow, Lesser Poland Voivodeship, 30-539
Linden Sp. z o.o. sp.k. /ID# 245685
Krakow, Lesser Poland Voivodeship, 30-721
Indywidualna Praktyka Lekarska dr hab. med. Anna Szczepanska-Szerej /ID# 232355
Lublin, Lublin Voivodeship, 20-582
Instytut Zdrowia Dr Boczarska Jedynak /ID# 251857
Oświęcim, Lesser Poland Voivodeship, 32-600
Solumed Centrum Medyczne /ID# 238446
Poznan, Greater Poland Voivodeship, 60-529
Warszawska Klinika Sp. z o.o. /ID# 240612
Warsaw, Masovian Voivodeship, 02-119
MIGRE Polskie Centrum Leczenia Migreny Anna Gryglas-Dworak /ID# 241887
Wroclaw, 52-210
Czechia7 sites
Fakultní Nemocnice U Sv. Anny V Brně /ID# 232213
Brno, Brno-mesto, 656 91
Nemocnice Jihlava, prispevkova organizace /ID# 232164
Jihlava, 586 01
Fakultni Nemocnice Ostrava /ID# 232211
Ostrava, Ostrava-mesto, 708 52
Clintrial s.r.o. /ID# 232208
Prague, 100 00
DADO MEDICAL s.r.o. /ID# 232157
Prague, 120 00
Axon Clinical, s.r.o. /ID# 232212
Prague, 140 00
Fakultni Thomayerova nemocnice /ID# 232214
Prague, 140 59
Israel6 sites
Hillel Yaffe Medical Center /ID# 232122
Hadera, Haifa District, 38100
Rambam Health Care Campus /ID# 238732
Haifa, 3109601
Shaare Zedek Medical Center /ID# 239485
Jerusalem, Jerusalem, 91031
Maccabi Healthcare Services /ID# 238605
Kfar Saba, Central District, 4420123
The Chaim Sheba Medical Center /ID# 232119
Ramat Gan, Tel Aviv, 5265601
Tel Aviv Sourasky Medical Center /ID# 232598
Tel Aviv, Tel Aviv, 6423906
Spain6 sites
Hospital Universitario Vall d'Hebron /ID# 232268
Barcelona, 08035
CLINICA UNIVERSIDAD DE NAVARRA-Madrid /ID# 233320
Madrid, 28027
Hospital Universitario La Paz /ID# 232495
Madrid, 28046
Hospital Universitario Central de Asturias /ID# 232428
Oviedo, Principality of Asturias, 33011
Clinica Universidad de Navarra - Pamplona /ID# 232270
Pamplona, Navarre, 31008
Hospital Clinico Universitario de Valladolid /ID# 232272
Valladolid, 47003
Canada5 sites
CHAMP Clinic /ID# 231635
Calgary, Alberta, T3M 1M4
Maritime Neurology /ID# 232048
Halifax, Nova Scotia, B3R 1V9
Clinique Neuro Levis /ID# 232049
Lévis, Quebec, G6W 0M5
Toronto Memory Program /ID# 240006
Toronto, Ontario, M3B 2S7
Vancouver Island Health Authority /ID# 231992
Victoria, British Columbia, V8R 1J8
United Kingdom5 sites
Duplicate_Queen Elizabeth University Hospital /ID# 244870
Glasgow, Glasgow City, G51 4TF
Hull University Teaching Hospitals NHS Trust /ID# 242763
Hull, East Riding Of Yorkshire, HU3 2JZ
NHS Highland /ID# 242855
Inverness, IV2 3UJ
Walton Centre /ID# 242857
Liverpool, L9 7LJ
St Pancras Clinical Research /ID# 242764
London, EC2Y 8EA
Sweden4 sites
Linkoping University Hospital /ID# 234040
Linköping, Östergötland County, 581 85
Skaneuro Privatmottagning /ID# 232175
Lund, Skåne County, 227 33
Neurology Clinic /ID# 234067
Stockholm, Stockholm County, 114 33
Optimuskliniken /ID# 232174
Upplands Vasby, 194 61
About this study
Official title: Phase 3 Multicenter, Randomized, Double-blind, Placebo-controlled Study of BOTOX (Botulinum Toxin Type A) for the Prevention of Migraine in Subjects With Episodic Migraine
Migraine is a neurological disease characterized by moderate or severe headache, associated with nausea, vomiting, and/or sensitivity to light and sound (International Classification of Headache Disorders, 2018). Migraine can be further categorized according to the frequency of attacks as episodic migraine (EM) or chronic migraine (CM). This study will assess the effects of BOTOX in preventing migraine in adult participants with EM.
BOTOX is being developed for the prevention of migraine in adults with episodic migraine (EM). Participants will be enrolled in 3 different treatment groups. There is 1 in 3 chance that participants will be assigned to receive placebo. Approximately 777 adult participants with EM will be enrolled in approximately 125 sites across the world.
Read more
Participants will receive intramuscular injections (injected into the muscle) of BOTOX or Placebo on Day 1 and Week 12. Eligible participants will receive BOTOX on Week 24 and Week 36.
There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.
- Conditions
- Episodic Migraine
- Being tested
- BOTOX, Placebo
- Keywords
- Migraine, Episodic Migraine, BOTOX, Botulinum Toxin Type A
- Medical subject headings
- Migraine Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
BOTOXDrug
Also called Botulinum Toxin Type A
Intramuscular Injection
PlaceboDrug
Intramuscular Injection
| Study group | Role | What they receive |
|---|---|---|
| Double-Blind Phase: Placebo | Placebo comparator | Participants received placebo for BOTOX intramuscular injections in the head/neck muscles on Day 1 and Week 12. Receives: Drug: Placebo |
| Double-Blind Phase: BOTOX 155 U | Experimental | Participants received intramuscular injections of BOTOX 155 U in the head/neck muscles on Day 1 and Week 12. Receives: Drug: BOTOX |
| Double-Blind Phase: BOTOX 195 U | Experimental | Participants received intramuscular injections of BOTOX 195 U in the head/neck muscles on Day 1 and Week 12. Receives: Drug: BOTOX |
| Open-Label Phase: BOTOX 195 U | Experimental | Eligible participants received intramuscular injections of BOTOX 195 U in the head/neck muscles on Weeks 24 and 36. Receives: Drug: BOTOX |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in the Frequency of Monthly Migraine Days Across Months 5 and 6
The frequency of monthly migraine days across Months 5 and 6 is calculated by taking the 2-month average of monthly migraine days over Months 5 and 6. Month 5 and Month 6 are the 28-day daily diary periods ending with Days 56 and Days 84 after the second study treatment intervention day with BOTOX or placebo injections, respectively. Negative changes from Baseline indicate improvement.
Measured: Baseline, Months 5-6
Number of Participants With Treatment-Emergent Adverse Events (AEs)
An adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment. The investigator assesses the relationship of each event to the use of study drug. A serious adverse event (SAE) is an event that results in death, is life-threatening, requires or prolongs hospitalization, results in a congenital anomaly, persistent or significant disability/incapacity or is an important medical event that, based on medical judgment, may jeopardize the participant and may require medical or surgical intervention to prevent any of the outcomes listed above. Treatment-emergent adverse events/treatment-emergent serious adverse events (TEAEs/TESAEs) are defined as any event that began or worsened in severity on or after the first dose of study drug.
Measured: Double-Blind Phase (Week 0-24); Open-Label Phase (Week 24-48)
Secondary outcomes (6)
Change From Baseline in the Frequency of Monthly Headache Days Across Months 5 and 6
The frequency of monthly headache days across Months 5 and 6 is calculated by taking the 2-month average of monthly headache days over Months 5 and 6. Month 5 and Month 6 are the 28-day daily diary periods ending with Days 56 and Days 84 after the second study treatment intervention day with BOTOX or placebo injections, respectively. Negative changes from Baseline indicate improvement.
Measured: Baseline, Months 5-6
Percentage of Participants With ≥ 50% Reduction From Baseline in the Frequency of Monthly Migraine Days Across Months 5 and 6
The frequency of monthly migraine days across Months 5 and 6 is calculated by taking the 2-month average of monthly migraine days over Months 5 and 6. Month 5 and Month 6 are the 28-day daily diary periods ending with Days 56 and Days 84 after the second study treatment intervention day with BOTOX or placebo injections, respectively. The responder status of 50% reduction from Baseline is defined as a participant with at least a 50% reduction from Baseline in the 2-month average of monthly migraine days over Months 5 and 6.
Measured: Baseline, Months 5-6
Change From Baseline in the Frequency of Monthly Acute Headache Medication Days Across Months 5 and 6
Monthly acute headache medication days across Months 5 and 6 is calculated by taking the 2-month average of monthly acute headache medication days over Months 5 and 6. Month 5 and Month 6 are the 28-day daily diary periods ending with Days 56 and Days 84 after the second study treatment intervention day with BOTOX or placebo injections, respectively. Negative changes from Baseline indicate improvement.
Measured: Baseline, Months 5-6
Change From Baseline in Migraine-Specific Quality of Life Questionnaire Version 2.1 (MSQ v2.1) Role Function - Restrictive (RFR) Domain Score At Month 6
The MSQ v2.1 is a 14-item questionnaire designed to measure health-related quality of life impairments attributed to migraine over the past 4 weeks. It is divided into 3 domains, and the Role Function Restrictive (RFR) assesses how migraines limit one's daily social and work-related activities using a 6-point scale ranging from "none of the time" to "all of the time". Raw dimension scores are computed as a sum of item responses and rescaled to a 0 to 100 scale, where higher scores indicate better quality of life. Positive changes from Baseline indicate improvement.
Measured: Baseline, Month 6
Change From Baseline in the Activity Impairment in Migraine - Diary (AIM-D) Physical Impairment Domain Score Across Months 5 and 6
AIM-D Physical Impairment Domain score is calculated based on the summation of AIM-D items 6-9. Participants answer each question based on the level of difficulty experienced in the 24 hours prior, with "during your headache" indicated for when they reported a headache, using a 6-point rating scale ranging from "not difficult at all" to "extremely difficult". The raw daily score is transformed to a 0-100 scale, and the monthly score is calculated using the average daily scores, where a higher score indicates worse physical impairment. AIM-D Physical Impairment domain score across Months 5 and 6 is calculated by taking the 2-month average of AIM-D Physical Impairment domain scores over Months 5 and 6. Month 5 and Month 6 are the 28-day daily diary periods ending with Days 56 and Days 84 after the second study treatment intervention day with BOTOX or placebo injections, respectively. Negative changes from Baseline indicate improvement.
Measured: Baseline, Months 5-6
Change From Baseline in the Total 6-item Headache Impact Test (HIT-6) Score Across Months 5 and 6
The HIT-6 is a 6-item assessment used to measure the impact headaches have on a participant's ability to function on the job, at school, at home and in social situations. It assesses the effect that headaches have on normal daily life and the subject's ability to function. Responses are based on frequency using a 5-point scale ranging from "never" to "always." The HIT-6 total score, which ranges from 36 to 78, is the sum of the responses, each of which is assigned a score ranging from 6 points (never) to 13 points (always). The Total 6-item Headache Impact Test (HIT-6) score across Months 5 and 6 is calculated by taking the 2-month average of total 6-item Headache Impact Test (HIT-6) scores over Months 5 and 6. Negative changes from Baseline in the HIT-6 score indicate improvement.
Measured: Baseline, Months 5-6
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted31 Aug 2021
- Study start5 Nov 2021
- Primary completion6 Nov 2024
- Study completion6 Nov 2024
Why it stopped: The study was terminated early due to lack of efficacy from the primary analysis results.
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Episodic MigraineStudies of the same condition, open and under way.
- More trials run by AbbVieThe sponsor's other registered studies.
- 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
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 775 participants (actual)
Sponsor and investigators
- Lead sponsor
- AbbVie
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- ABBVIE INC., Study director, AbbVie
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05028569
- Sponsor's protocol ID
- M21-307
- Other IDs
- 2021-001979-16
- Status last verified
- Nov 2025
- First submitted
- 25 Aug 2021
- Last updated
- 9 Dec 2025
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: AbbVie is committed to responsible clinical trial data sharing. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information.
Study at a glance
From the registry record, last updated by the sponsor on 9 Dec 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase 3 Multicenter, Randomized, Double-blind, Placebo-controlled Study of BOTOX (Botulinum Toxin Type A) for the Prevention of Migraine in Subjects With Episodic Migraine
- ClinicalTrials.gov ID
- NCT05028569
- Acronym / sponsor ID
- M21-307
- Conditions
- Episodic Migraine
- Keywords
- Migraine, Episodic Migraine, BOTOX, Botulinum Toxin Type A
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: The study was terminated early due to lack of efficacy from the primary analysis results.
- Enrolment
- 775 participants (actual)
- Lead sponsor
- AbbVieIndustry (pharma, biotech, devices)
- Study start
- 5 Nov 2021 (actual)
- Primary completion
- 6 Nov 2024 (actual)
- Study completion
- 6 Nov 2024 (actual)
- First posted
- 31 Aug 2021 (actual)
- Results
- Posted 9 Dec 2025
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Migraine is a neurological disease characterized by moderate or severe headache, associated with nausea, vomiting, and/or sensitivity to light and sound (International Classification of Headache Disorders, 2018). Migraine can be further categorized according to the frequency of attacks as episodic migraine (EM) or chronic migraine (CM). This study will assess the effects of BOTOX in preventing migraine in adult participants with EM.
BOTOX is being developed for the prevention of migraine in adults with episodic migraine (EM). Participants will be enrolled in 3 different treatment groups. There is 1 in 3 chance that participants will be assigned to receive placebo. Approximately 777 adult participants with EM will be enrolled in approximately 125 sites across the world.
Participants will receive intramuscular injections (injected into the muscle) of BOTOX or Placebo on Day 1 and Week 12. Eligible participants will receive BOTOX on Week 24 and Week 36.
There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Double-Blind Phase: Placebo | Placebo comparator | Drug: PlaceboParticipants received placebo for BOTOX intramuscular injections in the head/neck muscles on Day 1 and Week 12. |
| Double-Blind Phase: BOTOX 155 U | Experimental | Drug: BOTOXParticipants received intramuscular injections of BOTOX 155 U in the head/neck muscles on Day 1 and Week 12. |
| Double-Blind Phase: BOTOX 195 U | Experimental | Drug: BOTOXParticipants received intramuscular injections of BOTOX 195 U in the head/neck muscles on Day 1 and Week 12. |
| Open-Label Phase: BOTOX 195 U | Experimental | Drug: BOTOXEligible participants received intramuscular injections of BOTOX 195 U in the head/neck muscles on Weeks 24 and 36. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- History of migraine headache disorder meeting International Classification of Headache Disorders (ICHD)-3 diagnostic criteria for migraine with aura or migraine without aura for >= 12 months.
- Onset of migraine before 50 years of age.
- History of 6 to 14 migraine days/month in each of the 3 months prior to Visit 1.
- Six to 14 migraine/probable migraine days during the 4-week screening/baseline phase.
- Less than 15 headache days/month in each of the 3 months prior to Visit 1 and during the 4-week screening/baseline phase.
Key exclusion criteria (5 listed)
- Current diagnosis of chronic migraine according to ICHD-3.
- History or current diagnosis of migraine with brainstem aura, retinal migraine, complications of migraine, chronic tension-type headache, trigeminal autonomic cephalalgias, hypnic headache, hemicrania continua, or new daily persistent headache.
- History of headache attributed to another disorder (e.g., cervical dystonia, craniotomy, head/neck trauma) with exception that medication overuse headache per ICHD-3 criteria is allowed.
- History of inadequate response to > 4 prophylactic treatment for migraine, 2 of which have different mechanisms of action.
- Female who is pregnant, breastfeeding, or considering becoming pregnant during the study or within 90 days after the last dose of study drug.
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 |
|---|---|---|
| BOTOXAlso: Botulinum Toxin Type AIntramuscular Injection | Drug | Double-Blind Phase: BOTOX 155 U, Double-Blind Phase: BOTOX 195 U, Open-Label Phase: BOTOX 195 U |
| PlaceboIntramuscular Injection | Drug | Double-Blind Phase: Placebo |
Primary outcome
Change From Baseline in the Frequency of Monthly Migraine Days Across Months 5 and 6
Time frame: Baseline, Months 5-6
The frequency of monthly migraine days across Months 5 and 6 is calculated by taking the 2-month average of monthly migraine days over Months 5 and 6. Month 5 and Month 6 are the 28-day daily diary periods ending with Days 56 and Days 84 after the second study treatment intervention day with BOTOX or placebo injections, respectively. Negative changes from Baseline indicate improvement.
Number of Participants With Treatment-Emergent Adverse Events (AEs)
Time frame: Double-Blind Phase (Week 0-24); Open-Label Phase (Week 24-48)
An adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment. The investigator assesses the relationship of each event to the use of study drug. A serious adverse event (SAE) is an event that results in death, is life-threatening, requires or prolongs hospitalization, results in a congenital anomaly, persistent or significant disability/incapacity or is an important medical event that, based on medical judgment, may jeopardize the participant and may require medical or surgical intervention to prevent any of the outcomes listed above. Treatment-emergent adverse events/treatment-emergent serious adverse events (TEAEs/TESAEs) are defined as any event that began or worsened in severity on or after the first dose of study drug.
6 secondary outcomes
Change From Baseline in the Frequency of Monthly Headache Days Across Months 5 and 6
Time frame: Baseline, Months 5-6
Percentage of Participants With ≥ 50% Reduction From Baseline in the Frequency of Monthly Migraine Days Across Months 5 and 6
Time frame: Baseline, Months 5-6
Change From Baseline in the Frequency of Monthly Acute Headache Medication Days Across Months 5 and 6
Time frame: Baseline, Months 5-6
Change From Baseline in Migraine-Specific Quality of Life Questionnaire Version 2.1 (MSQ v2.1) Role Function - Restrictive (RFR) Domain Score At Month 6
Time frame: Baseline, Month 6
Change From Baseline in the Activity Impairment in Migraine - Diary (AIM-D) Physical Impairment Domain Score Across Months 5 and 6
Time frame: Baseline, Months 5-6
Change From Baseline in the Total 6-item Headache Impact Test (HIT-6) Score Across Months 5 and 6
Time frame: Baseline, Months 5-6
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Dec 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Individual participant dataSharing planned: Yes. AbbVie is committed to responsible clinical trial data sharing. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information.
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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. This study is not recruiting at the moment.
ABBVIE INC. study director
AbbVie
133 sites in 9 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing BOTOX in people with Episodic Migraine, run by AbbVie at 133 sites in 9 countries.
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 5 inclusion and 5 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: stopped early, as of the sponsor's last update on 9 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 133 sites in United States, Germany, Poland, Czechia, Israel and 4 more countries. 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 9 Dec 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?
Change From Baseline in the Frequency of Monthly Migraine Days Across Months 5 and 6 (time frame: Baseline, Months 5-6). 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 9 Dec 2025.