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Migraine DisordersPhase 3PROMISE 2NCT02974153

Evaluation of ALD403 (Eptinezumab) in the Prevention of Chronic Migraine

A Phase 3 study testing ALD403 (Eptinezumab) in people with Migraine Disorders, run by Alder Biopharmaceuticals, Inc. at 144 sites in 13 countries.

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

The purpose of this study is to assess the efficacy and safety of ALD403 in the prevention of migraine headache in chronic migraineurs. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Migraine Disorders
What is being tested?
ALD403 (Eptinezumab)
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
1,121 participants
Where
144 sitesin 13 countries
Study dates
Nov 2016to Apr 2018
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

  • Males and females between 18 and 65 years of age, inclusive, who were diagnosed with migraines at ≤ 50 years of age, and have a history of chronic migraine for ≥ 12 months before screening.
  • During the 28 day screening period, subjects must adequately complete the headache eDiary and must have headaches occurring on ≥ 15 to ≤ 26 days of which at least 8 must be migraine days.
  • Headache eDiary was completed on at least 24 of the 28 days prior to randomization.

Who cannot join

  • Confounding and clinically significant pain syndromes (e.g. fibromyalgia, chronic low back pain, complex regional pain syndrome).
  • Psychiatric conditions that are uncontrolled and/or untreated, including conditions that are not controlled for a minimum of 6 months prior to screening. Patients with a lifetime history of psychosis, mania, or dementia are excluded.
  • Any use of botulinum toxin for migraine or for any other medical/cosmetic reasons requiring injections within 4 months prior to screening and during the screening period.
  • History or diagnosis of complicated migraine (ICHD-III beta version, 20134), chronic tension-type headache, hypnic headache, cluster headache, hemicrania continua, new daily persistent headache, or sporadic and familial hemiplegic migraine.
  • Receipt of any monoclonal antibody treatment (within or outside a clinical trial) within 6 months before screening.
  • Previously dosed with ALD403 or any monoclonal antibody targeting the CGRP pathway.

Trial locations and contacts

144 sites in 13 countries.

144 sites in 13 countries

United States74 sites
  • Research Site

    Albuquerque, New Mexico, 87102

  • Research Site

    Amherst, New York, 14226

  • Research Site

    Anderson, Indiana, 46011

  • Research Site

    Ann Arbor, Michigan, 48104

  • Research Site

    Atlanta, Georgia, 30328

  • Research Site

    Atlanta, Georgia, 30342

  • Research Site

    Bellevue, Washington, 98007

  • Research Site

    Birmingham, Alabama, 35235

  • Research Site

    Boston, Massachusetts, 02135

  • Research Site

    Brooklyn, New York, 11229

  • Research Site

    Canton, Ohio, 44718

  • Research Site

    Carlsbad, California, 92011

  • Research Site

    Champaign, Illinois, 61820

  • Research Site

    Chattanooga, Tennessee, 37404

  • Research Site

    Chattanooga, Tennessee, 37421

  • Research Site

    Chicago, Illinois, 60607

  • Research Site

    Chicago, Illinois, 60642

  • Research Site

    City of Saint Peters, Missouri, 63303

  • Research Site

    Colorado Springs, Colorado, 80918

  • Research Site

    Dallas, Texas, 75214

  • Research Site

    Dayton, Ohio, 45432

  • Research Site

    Decatur, Georgia, 30030

  • Research Site

    Des Moines, Iowa, 50309

  • Research Site

    Durham, North Carolina, 27705

  • Research Site

    Flowood, Mississippi, 39232

  • Research Site

    High Point, North Carolina, 27262

  • Research Site

    Houston, Texas, 77058

  • Research Site

    Houston, Texas, 77081

  • Research Site

    Jacksonville, Florida, 32256

  • Research Site

    Las Vegas, Nevada, 89113

  • Research Site

    Lebanon, New Hampshire, 03756

  • Research Site

    Little Rock, Arkansas, 72211

  • Research Site

    Marrero, Louisiana, 70072

  • Research Site

    Memphis, Tennessee, 38119

  • Research Site

    Miami, Florida, 33155

  • Research Site

    Minneapolis, Minnesota, 55402

  • Research Site

    Mt. Pleasant, South Carolina, 29464

  • Research Site

    Nashville, Tennessee, 37203

  • Research Site

    New London, Connecticut, 06320

  • Research Site

    New York, New York, 10016

  • Research Site

    New York, New York, 10019

  • Research Site

    North Attleboro, Massachusetts, 02740

  • Research Site

    North Richland Hills, Texas, 76180

  • Research Site

    Oceanside, California, 92056

  • Research Site

    Oklahoma City, Oklahoma, 73116

  • Research Site

    Orange, California, 92868

  • Research Site

    Orlando, Florida, 32806

  • Research Site

    Overland Park, Kansas, 66212

  • Research Site

    Oxnard, California, 93030

  • Research Site

    Palo Alto, California, 94304

  • Research Site

    Phoenix, Arizona, 85032

  • Research Site

    Plainview, New York, 11803

  • Research Site

    Prairie Village, Kansas, 66208

  • Research Site

    Princeton, New Jersey, 08540

  • Research Site

    Redlands, California, 92374

  • Research Site

    Richmond, Virginia, 23294

  • Research Site

    Rochester, New York, 14609

  • Research Site

    Salt Lake City, Utah, 84109

  • Research Site

    Salt Lake City, Utah, 84123

  • Research Site

    San Antonio, Texas, 78258

  • Research Site

    San Diego, California, 92108

  • Research Site

    Santa Monica, California, 90404

  • Research Site

    Scottdale, Pennsylvania, 15683

  • Research Site

    Smithfield, Pennsylvania, 15478

  • Research Site

    Spokane, Washington, 99202

  • Research Site

    Springfield, Missouri, 65810

  • Research Site

    St Louis, Missouri, 63141

  • Research Site

    Tampa, Florida, 33606

  • Research Site

    Torrance, California, 90502

  • Research Site

    Waldorf, Maryland, 20603

  • Research Site

    Watertown, Massachusetts, 02472

  • Research Site

    West Palm Beach, Florida, 33407

  • Research Site

    Wichita, Kansas, 67207

  • Research Site

    Winter Haven, Florida, 33880

Other trials in United States

Spain14 sites
  • Research Site

    Alicante, 03010

  • Research Site

    Barcelona, 08035

  • Research Site

    Guadalajara, 19002

  • Research Site

    Lleida, 25198

  • Research Site

    Madrid, 28046

  • Research Site

    Madrid, 28050

  • Research Site

    Madrid, 28222

  • Research Site

    Madrid, 28223

  • Research Site

    Navarrés, 31008

  • Research Site

    Santander, 39008

  • Research Site

    Seville, 41013

  • Research Site

    Terrassa, 08221

  • Research Site

    Valencia, 46026

  • Research Site

    Valladolid, 47005

Other trials in Spain

Russia10 sites
  • Research Site

    Kazan', 420064

  • Research Site

    Krasnoyarsk, 660037

  • Research Site

    Moscow, 121467

  • Research Site

    Novosibirsk, 630051

  • Research Site

    Novosibirsk, 630054

  • Research Site

    Saint Petersburg, 191144

  • Research Site

    Saint Petersburg, 194044

  • Research Site

    Saint Petersburg, 194223

  • Research Site

    Yaroslavl, 150030

  • Research Site

    Yekaterinburg, 620102

Other trials in Russia

Ukraine9 sites
  • Research Site

    Dnipro, 49045

  • Research Site

    Dnipropetrovsk, 49027

  • Research Site

    Ivano-Frankivsk, 76008

  • Research Site

    Kharkiv, 61068

  • Research Site

    Kharkiv, 61103

  • Research Site

    Lviv, 79010

  • Research Site

    Odesa, 65014

  • Research Site

    Vinnytsia, 21005

  • Research Site

    Zaporizhzhya, 69065

Other trials in Ukraine

Italy6 sites
  • Research Site

    Ancona, 60020

  • Research Site

    Milan, 20132

  • Research Site

    Milan, 20133

  • Research Site

    Naples, 80131

  • Research Site

    Pavia, 27100

  • Research Site

    Roma, 00163

Other trials in Italy

United Kingdom6 sites
  • Research Site

    Glasgow, G51 4TF

  • Research Site

    Inverness, IV2 3UJ

  • Research Site

    London, SE5 9PL

  • Research Site

    Newcastle, NE1 4LP

  • Research Site

    Salford, M8 8HD

  • Research Site

    Stoke-on-Trent, ST4 7LN

Other trials in United Kingdom

Germany5 sites
  • Research Site

    Berlin, 10117

  • Research Site

    Erlangen, 91054

  • Research Site

    Hamburg, 20246

  • Research Site

    Nordheim, 45122

  • Research Site

    Unterhaching, 82008

Other trials in Germany

Czechia4 sites
  • Research Site

    Brno, 61500

  • Research Site

    Choceň, 565 01

  • Research Site

    Prague, 100 34

  • Research Site

    Prague, 18200

Other trials in Czechia

Georgia4 sites
  • Research Site

    Tbilisi, 0112

  • Research Site

    Tbilisi, 0160

  • Research Site

    Tbilisi, 0179

  • Research Site

    Tbilisi, 0186

Other trials in Georgia

Hungary4 sites
  • Research Site

    Budapest, 1033

  • Research Site

    Budapest, 1083

  • Research Site

    Budapest, 1145

  • Research Site

    Pécs, 7623

Other trials in Hungary

Slovakia4 sites
  • Research Site

    Banská Bystrica, 97404

  • Research Site

    Dolný Kubín, 026 01

  • Research Site

    Dubnica nad Váhom, 01841

  • Research Site

    Krompachy, 053 42

Other trials in Slovakia

Belgium2 sites
  • Research Site

    Brussels, 1090

  • Research Site

    Liège, 4000

Other trials in Belgium

Denmark2 sites
  • Research Site

    Glostrup Municipality, 2600

  • Research Site

    Viborg, 8800

Other trials in Denmark

About this study

Official title: A Parallel Group, Double-Blind, Randomized, Placebo Controlled Phase 3 Trial to Evaluate the Efficacy and Safety of ALD403 Administered Intravenously in Patients With Chronic Migraine

The purpose of this study is to assess the efficacy and safety of ALD403 in the prevention of migraine headache in chronic migraineurs.

Being tested
ALD403 (Eptinezumab), 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.

  • ALD403 (Eptinezumab)Biological

    Also called Eptinezumab-jjmr, Vyepti

  • PlaceboBiological

Study groups in NCT02974153
Study groupRoleWhat they receive
ALD403 (Eptinezumab) Dose Level 1ExperimentalALD403 (Eptinezumab) Dose Level 1 (IV)
Receives: Biological: ALD403 (Eptinezumab)
ALD403 (Eptinezumab) Dose Level 2ExperimentalALD403 (Eptinezumab) Dose Level 2 (IV)
Receives: Biological: ALD403 (Eptinezumab)
PlaceboPlacebo comparatorPlacebo (IV)
Receives: Biological: Placebo

What is being measured

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

  1. Change From Baseline in Monthly Migraine Days

    Monthly migraine days are summarized in 28-day intervals, and averaged across Weeks 1-12

    Measured: Week 1-12

Secondary outcomes (26)
  1. 75% Migraine Responder Rate

    Participants with an average reduction in migraine days of at least 75% over Weeks 1 to 12, as compared with baseline.

    Measured: Week 1-12

  2. 75% Migraine Responder Rate - 4 Week

    Participants with an average reduction in migraine days of at least 75% over Weeks 1 to 4, as compared with baseline.

    Measured: Week 1-4

  3. 50% Migraine Responder Rate

    Participants with an average reduction in migraine days of at least 50% over Weeks 1 to 12, as compared with baseline.

    Measured: Week 1-12

  4. Percentage of Participants With a Migraine on the Day After Dosing

    The percentage of participants with a migraine on the day after dosing, where Day 0 is treatment Day and Day 1 is the day after dosing.

    Measured: Day 1

  5. Change in Monthly Acute Medication Days

    An acute medication migraine day was a day with any triptan or ergotamine use as recorded in the eDiary.

    Measured: Week 1-12

  6. Change From Baseline of Headache Impact Test (HIT-6) Score

    The HIT-6 measures the impact of headache on the participant's functional health and well-being in 6 domains: pain; role functioning (ability to carry out usual activities); social functioning; energy or fatigue; cognition; and emotional distress assessed over the prior 12-week period. The total possible scores range from 36 (no impact) to 78 (worst impact).

    Measured: Baseline to Week 12

  7. Change in Migraine Prevalence From Baseline to Week 4

    The avarage change in percentage of participants with a migraine on any given day during baseline and the equivalent avarage rate over Weeks 1-4.

    Measured: Baseline to Week 4

  8. 75% Headache Responder Rate

    Participants with an average reduction in headache days of at least 75% over Weeks 1 to 12, as compared with baseline.

    Measured: Week 1-12

  9. 50% Headache Responder Rate

    Participants with an average reduction in headache days of at least 50% over Weeks 1 to 12, as compared with baseline.

    Measured: Week 1-12

  10. 100% Migraine Responder Rate

    For each 4-week period the 100% response is determined, and the result for a participant is the average rate across Weeks 1-12. If a participant has one 4-week period out of 3 with 100% response, they are included as 33%.

    Measured: Week 1-12

  11. 100% Headache Responder Rate

    For each 4-week period the 100% response is determined, and the result for a participant is the average rate across Weeks 1-12. If a participant has one 4-week period out of 3 with 100% response, they are included as 33%.

    Measured: Week 1-12

  12. Change From Baseline in Monthly Migraine Days (Weeks 13-24)

    Monthly migraine days are summarized in 28-day intervals, and averaged across Weeks 13-24.

    Measured: Week 13-24

  13. Change From Baseline in Monthly Headache Days (Weeks 1-12)

    Monthly headache days are summarized in 28-day intervals, and averaged across Weeks 1-12.

    Measured: Week 1-12

  14. Time to First Migraine After Dosing

    The time to first migraine after dosing based upon the migraine data entered into the eDiary

    Measured: 32 weeks

  15. Change From Baseline to Week 12 in Percentage of Migraines With Use of Acute Medication

    The percentage of migraines with acute medication usage. Participants with no migraine will be included with a rate of zero.

    Measured: Week 1-12

  16. Change From Baseline to Week 12 in Percentage of Headaches With Use of Acute Medication

    The percentage of headaches with acute medication usage. Participants with no headaches will be included with a rate of zero.

    Measured: Week 1-12

  17. Percent Change in Frequency of Migraine Days - Week 1-12

    The percent change in frequency of migraine days from Weeks 1-12 was calculated as the number of migraine days within 4-week intervals that were then averaged up to Week 12. The difference of this estimate from baseline was calculated as the change from baseline in the frequency of migraine days over Weeks 1-12.

    Measured: Week 1-12

  18. Percent Change in Frequency of Headache Days - Week 1-12

    The percent change in frequency of headache days from Weeks 1-12 was calculated as the number of headache days within 4-week intervals that were then averaged up to Week 12. The difference of this estimate from baseline was calculated as the change from baseline in the frequency of headache days over Weeks 1-12.

    Measured: Week 1-12

  19. Change From Baseline in Percentage of Severe Migraines

    The change from baseline in percentage of migraines that are classified as severe over Weeks 1-12.

    Measured: Week 1-12

  20. Change From Baseline in Percentage of Severe Headache

    The change from baseline in percentage of headaches that are classified as severe over Weeks 1-12.

    Measured: Week 1-12

  21. Change From Baseline in Monthly Migraine Hours, Weeks 1-12

    Migraine hours are the sum of migraines within 4 week intervals, and the average 4 week duration within 12 weeks.

    Measured: Week 1-12

  22. Change From Baseline in Monthly Headache Hours, Weeks 1-12

    Headache hours are the sum of the duration of headaches within 4 week intervals, and the average 4 week duration within 12 week intervals.

    Measured: Week 1-12

  23. Duration of Migraine-Free Intervals

    The number of participants with migraine-free intervals starting within the first 2 weeks of treatment. The longest migraine free interval for each participant is recorded.

    Measured: 32 weeks

  24. Change From Baseline of Short Form Health Survey (SF-36 v 2.0) Scale Scores

    The SF-36 is a health survey containing 36 questions consisting of eight scaled scores to measure quality of life over the past 4 weeks. All scales are on a range of 0 to 100, with 0 being the worst and 100 being the best. Scales are reported separately. Increases from baseline indicate improvement.

    Measured: Baseline to Week 12

  25. Patient Global Impression of Change (PGIC) at Week 12

    The PGIC includes a single question concerning the participant's impression of the change in their disease status since the start of the study. Seven responses are possible: Very much improved, much improved, minimally improved, no change, minimally worse, much worse, very much worse.

    Measured: Week 12

  26. Health Related Quality of Life (EQ-5D-5L) at Week 12

    The EQ-5D-5L is a descriptive system of health-related quality of life states consisting of 5 dimensions/questions (mobility, self-care, usual activities, pain/discomfort, anxiety/depression) each of which can take one of five responses. The responses record five levels of severity (no problems/slight problems/moderate problems/severe problems/extreme problems) within a particular EQ-5D dimension.

    Measured: Week 12

Timeline

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

  1. First posted28 Nov 2016 (estimated)
  2. Study startNov 2016
  3. Primary completionNov 2017
  4. Study completionApr 2018

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
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
1,121 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02974153
Sponsor's protocol ID
ALD403-CLIN-011
Acronym
PROMISE 2
Status last verified
May 2020
First submitted
23 Nov 2016
Last updated
9 Jun 2020
Data monitoring committee
Yes

Publications

  • Tepper SJ, Diamond ML, Hirman J, Asher D, Fiore D, Cady R. Eptinezumab treatment was associated with longer interictal headache/migraine periods which corresponded to greater improvements in patient-reported quality of life measures. J Neurol. 2024 Dec 12;272(1):4. doi: 10.1007/s00415-024-12809-z.

    PubMed 39666143
  • Kaniecki RG, Friedman DI, Asher D, Hirman J, Cady R. Improving to Four or Fewer Monthly Headache Days Per Month Provides a Clinically Meaningful Therapeutic Target for Patients with Chronic Migraine. Pain Ther. 2023 Oct;12(5):1179-1194. doi: 10.1007/s40122-023-00525-x. Epub 2023 Jun 28.

    PubMed 37378754
  • Pozo-Rosich P, Dodick DW, Ettrup A, Hirman J, Cady R. Shift in diagnostic classification of migraine after initiation of preventive treatment with eptinezumab: post hoc analysis of the PROMISE studies. BMC Neurol. 2022 Oct 25;22(1):394. doi: 10.1186/s12883-022-02914-9.

    PubMed 36284281
  • Cowan RP, Marmura MJ, Diener HC, Starling AJ, Schim J, Hirman J, Brevig T, Cady R. Quantity changes in acute headache medication use among patients with chronic migraine treated with eptinezumab: subanalysis of the PROMISE-2 study. J Headache Pain. 2022 Sep 6;23(1):115. doi: 10.1186/s10194-022-01482-0.

    PubMed 36068494
  • Apelian R, Boyle L, Hirman J, Asher D. Measuring dose-related efficacy of eptinezumab for migraine prevention: post hoc analysis of PROMISE-1 and PROMISE-2. J Headache Pain. 2022 Apr 18;23(1):48. doi: 10.1186/s10194-022-01418-8.

    PubMed 35436857
  • McAllister P, Kudrow D, Cady R, Hirman J, Ettrup A. Reduction in migraine-associated burden after eptinezumab treatment in patients with chronic migraine. Cephalalgia. 2022 Sep;42(10):1005-1012. doi: 10.1177/03331024221089567. Epub 2022 Mar 25.

    PubMed 35332807
  • Ashina M, McAllister P, Cady R, Hirman J, Ettrup A. Efficacy and safety of eptinezumab in patients with migraine and self-reported aura: Post hoc analysis of PROMISE-1 and PROMISE-2. Cephalalgia. 2022 Jul;42(8):696-704. doi: 10.1177/03331024221077646. Epub 2022 Mar 18.

    PubMed 35302389
  • Buse DC, Winner PK, Charleston L 4th, Hirman J, Cady R, Brevig T. Early response to eptinezumab indicates high likelihood of continued response in patients with chronic migraine. J Headache Pain. 2022 Feb 21;23(1):29. doi: 10.1186/s10194-022-01387-y.

    PubMed 35189811
  • Martin V, Nagy AJ, Janelidze M, Giorgadze G, Hirman J, Cady R, Mehta L, Buse DC. Impact of Baseline Characteristics on the Efficacy and Safety of Eptinezumab in Patients With Migraine: Subgroup Analyses of PROMISE-1 and PROMISE-2. Clin Ther. 2022 Mar;44(3):389-402. doi: 10.1016/j.clinthera.2022.01.006. Epub 2022 Feb 5.

    PubMed 35131090
  • Lipton RB, Charleston L 4th, Tassorelli C, Brevig T, Hirman J, Cady R. Patient-reported outcomes, health-related quality of life, and acute medication use in patients with a >/= 75% response to eptinezumab: subgroup pooled analysis of the PROMISE trials. J Headache Pain. 2022 Feb 7;23(1):23. doi: 10.1186/s10194-022-01386-z.

    PubMed 35130836
  • Smith TR, Spierings ELH, Cady R, Hirman J, Ettrup A, Shen V. Cardiovascular outcomes in adults with migraine treated with eptinezumab for migraine prevention: pooled data from four randomized, double-blind, placebo-controlled studies. J Headache Pain. 2021 Nov 25;22(1):143. doi: 10.1186/s10194-021-01360-1.

    PubMed 34823467
  • Smith TR, Spierings ELH, Cady R, Hirman J, Schaeffler B, Shen V, Sperling B, Brevig T, Josiassen MK, Brunner E, Honeywell L, Mehta L. Safety and tolerability of eptinezumab in patients with migraine: a pooled analysis of 5 clinical trials. J Headache Pain. 2021 Mar 30;22(1):16. doi: 10.1186/s10194-021-01227-5.

    PubMed 33781209
  • Silberstein S, Diamond M, Hindiyeh NA, Biondi DM, Cady R, Hirman J, Allan B, Pederson S, Schaeffler B, Smith J. Eptinezumab for the prevention of chronic migraine: efficacy and safety through 24 weeks of treatment in the phase 3 PROMISE-2 (Prevention of migraine via intravenous ALD403 safety and efficacy-2) study. J Headache Pain. 2020 Oct 6;21(1):120. doi: 10.1186/s10194-020-01186-3.

    PubMed 33023473
  • Lipton RB, Goadsby PJ, Smith J, Schaeffler BA, Biondi DM, Hirman J, Pederson S, Allan B, Cady R. Efficacy and safety of eptinezumab in patients with chronic migraine: PROMISE-2. Neurology. 2020 Mar 31;94(13):e1365-e1377. doi: 10.1212/WNL.0000000000009169. Epub 2020 Mar 24.

    PubMed 32209650

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing ALD403 (Eptinezumab) in people with Migraine Disorders, run by Alder Biopharmaceuticals, Inc. at 144 sites in 13 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 3 inclusion and 6 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 9 Jun 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 144 sites in United States, Spain, Russia, Ukraine, Italy and 8 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 Jun 2020). 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 Monthly Migraine Days (time frame: Week 1-12). 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 NCT02974153, which also lists 14 linked publications.

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 Jun 2020.

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