ClinicalTrials.gg
CompletedNCT05458011Updated Nov 26, 2025Results posted

A Randomized, Double-Blind, Placebo-Controlled Study With an Open-Label Period on Efficacy and Safety of Fremanezumab in Chinese Adults With Migraine

A Phase 3 interventional study of Fremanezumab and Placebo in Migraine, sponsored by Teva Branded Pharmaceutical Products R&D, Inc.. Completed at 29 sites in China. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2025-11-26.

Sponsored by Teva Branded Pharmaceutical Products R&D, Inc. (part of Teva Pharmaceutical Industries, Ltd.) · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
365
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

Primary Objective:

To demonstrate the efficacy of fremanezumab administered as monthly and quarterly subcutaneous (sc) injections to adult Chinese participants with migraine.

Secondary Objectives:

  • To further demonstrate the efficacy of fremanezumab administered as monthly and quarterly sc injections.
  • To evaluate the safety and tolerability of fremanezumab administered as monthly and quarterly sc injections.
Read the detailed description

The total study duration for participants is planned to be approximately 9 months. The study will consist of a screening visit, a baseline period (4 weeks), a 12-week double-blind treatment period, a 12-week open-label treatment period, and a follow-up period lasting approximately 3 months after the last dose of treatment.

02

Conditions studied

  • Migraine

Browse trials for

03

In context

Migraine Disorders

1,657 studies on the registry are indexed under Migraine Disorders; 339 are open to participants now.

This study's enrollment of 365 is above the median of 80 across 1,269 interventional studies indexed under Migraine Disorders.

Browse Migraine Disorders studies →

Lead sponsor

Teva Branded Pharmaceutical Products R&D, Inc. is the lead sponsor of 206 studies on the registry; none are open to participants now.

Of its 49 completed or terminated interventional studies of FDA-regulated products, 47 (96%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • The participant has a diagnosis of migraine with onset at ≤50 years of age.
  • The participant has a body weight ≥45 kg and within the range 17.5 to 34.9 kg/m2 (inclusive).
  • The participant has a history of migraine for ≥12 months prior to screening.
  • Women of (WOCBP) whose male partners are potentially fertile (that is; no vasectomy) must use highly effective methods for the duration of the study and for 6.0 months after discontinuation of medicinal product (IMP).
  • Men must be sterile or, if they are potentially fertile/reproductively competent (not congenitally sterile) and their female partners are of childbearing potential, should use highly effective birth control for the duration of the study.
  • Additional criteria apply, please contact the investigator for more information.

Exclusion criteria

Exclusion Criteria:

  • Use of medications containing opioids (including codeine), barbiturates (including butalbital), or any combination product containing opioids or barbiturates (including butalbital) on more than 4 days during the screening period for the treatment of migraine or for any other reason.
  • Has used an intervention/device (eg, scheduled nerve blocks or transcranial magnetic stimulation) for migraine, or in the head or neck area, during the 2 months prior to screening (visit 1).
  • History of cardiovascular disease or vascular ischemia (such as myocardial, neurological [eg, cerebral ischemia], or peripheral extremity ischemia or other ischemic event) or thromboembolic events (arterial or venous thrombotic or embolic events), such as cerebrovascular accident (including ), deep vein thrombosis, or pulmonary embolism.
  • History of , tuberculosis, Lyme disease, or a known or suspected active infection of coronavirus disease 2019 (COVID-19).
  • Known current infection or history of infection in the past 6 months with or C viruses.
  • History of cancer in the past 5 years, except for appropriately treated non-melanoma skin carcinoma.
  • History of reactions to injected proteins, including monoclonal antibodies (mAbs), or a history of Stevens-Johnson Syndrome or toxic epidermal necrolysis syndrome, or is concomitantly using lamotrigine.
  • Any clinically significant uncontrolled medical condition (treated or untreated).
  • History of alcohol or drug abuse during the past 2 years or drug dependence during the past 5 years.
  • Additional criteria apply, please contact the investigator for more information.
Terms in these criteria, in plain language(9)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
365 participants (actual)

Study arms

  • Experimental
    Fremanezumab Monthly

    Double Blind (DB) Period: Participants will receive fremanezumab once a month (approximately every 4 weeks). Participants will receive a single injection of fremanezumab and two placebo injections on Day 1, and a single injection of fremanezumab on Days 29 and 57. Open Label (OL) Period: Participants will receive fremanezumab once a month (approximately every 4 weeks) administered as a single injection on Days 85, 113, and 141.

    Drug: Fremanezumab · Drug: Placebo

  • Experimental
    Fremanezumab Quarterly

    DB Period: Participants will receive fremanezumab once a quarter (once at the beginning of the 12-week double-blind treatment period). Participants will receive 3 injections of fremanezumab on Day 1, and a single placebo injection on Days 29 and 57. OL Period: Participants will receive fremanezumab once a month (approximately every 4 weeks) administered as a single injection on Days 85, 113, and 141.

    Drug: Fremanezumab · Drug: Placebo

  • Placebo comparator
    Placebo

    DB Period: Participants will receive placebo once a month (approximately every 4 weeks). Participants will receive 3 placebo injections on Day 1, and a single injection of placebo on Days 29 and 57. OL Period: Participants will receive fremanezumab once a month (approximately every 4 weeks) administered as a single injection on Days 85, 113, and 141.

    Drug: Placebo

Interventions

  • Pharmaceutical form: solution for injection Route of administration: subcutaneous injection

    Also known as: TEV-48125, Ajovy

  • DrugPlacebo

    Pharmaceutical form: solution for injection Route of administration: subcutaneous injection

06

What researchers measure

Primary outcomes

  1. Double Blind (DB) Period: Mean Change From Baseline in Monthly Average Number of Migraine Days During the 12-Week Period After the First Dose of Fremanezumab

    A migraine day was defined as a calendar day where the participant reported either of the following: A calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for migraine with or without aura or; a calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for probable migraine, a migraine subtype where only 1 migraine criterion is missing; a calendar day (0:00 to 23:59) demonstrating a headache of any duration that was treated with migraine specific medications (triptans and ergot compounds). Monthly averages were derived and normalized to 28 days equivalent by formula: (number of days of efficacy variable over 12-week period/number of days with assessments recorded in e-diary for 12-week period) \* 28. Least square (LS) mean was calculated using analysis of covariance (ANCOVA).

    Time frame: Baseline (Day -28 to Day -1), up to Week 12

Secondary outcomes

  1. DB Period: Mean Change From Baseline in the Average Number of Migraine Days During the 4-Week Period After the First Dose of Fremanezumab

    A migraine day was defined as a calendar day where the participant reported either of the following: A calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for migraine with or without aura or; a calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for probable migraine, a migraine subtype where only 1 migraine criterion is missing; a calendar day (0:00 to 23:59) demonstrating a headache of any duration that was treated with migraine specific medications (triptans and ergot compounds). Monthly averages were derived and normalized to 28 days equivalent by formula: (number of days of efficacy variable over 4-week period/number of days with assessments recorded in e-diary for 4-week period) \* 28.

    Time frame: Baseline (Day -28 to Day -1), Up to Week 4

  2. DB Period: Mean Change From Baseline in the Monthly Average Number of Days of Use of Any Acute Headache Medications During the 12-Week Period After the First Dose of Fremanezumab

    Participants recorded any headache medications (name of drug, number of tablets/capsules, and the dose in milligrams per tablet/capsule) taken each day in their electronic headache diary device. Acute headache medication included opioids, barbiturates, triptans, ergots, non-steroidal anti-inflammatory drugs (NSAIDs), acetaminophen and their combination products. Monthly averages were derived and normalized to 28 days equivalent by formula: (number of days of efficacy variable over 12-week period/number of days with assessments recorded in e-diary for 12-week period) \* 28.

    Time frame: Baseline (Day -28 to Day -1), Up to Week 12

  3. DB Period: Number of Participants Reaching at Least 50% Reduction From Baseline in Monthly Average Number of Migraine Days During the 12-Week Period After the First Dose of Fremanezumab

    A migraine day was defined as a calendar day where the participant reported either of the following: A calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for migraine with or without aura or; a calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for probable migraine, a migraine subtype where only 1 migraine criterion is missing; a calendar day (0:00 to 23:59) demonstrating a headache of any duration that was treated with migraine specific medications (triptans and ergot compounds). Monthly averages were derived and normalized to 28 days equivalent by formula: (number of days of efficacy variable over 12-week period/number of days with assessments recorded in e-diary for 12-week period) \* 28.

    Time frame: Baseline (Day -28 to Day-1), Up to Week 12

  4. DB Period: Mean Change From Baseline in the Monthly Average Number of Headache Days of at Least Moderate Severity During the 12-Week Period After the First Dose of Fremanezumab

    A headache day of at least moderate severity was defined as a calendar day (00:00 to 23:59) where the participant reported either of the following: A calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of headache of at least moderate severity; or a calendar day (0:00 to 23:59) demonstrating a headache of any duration that was treated with migraine-specific acute medications (triptans and ergot compounds). Monthly averages were derived and normalized to 28 days equivalent by formula: (number of days of efficacy variable over 12-week period/number of days with assessments recorded in e-diary for 12-week period) \* 28.

    Time frame: Baseline (Day -28 to Day -1), Up to Week 12

  5. DB Period: Number of Participants With At Least One Treatment-Emergent Adverse Event (TEAE)

    An adverse event (AE) was defined as any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Serious AEs (SAEs) were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. TEAEs were defined as AEs that occurred after the first dose of study drug was administered through end of the trial. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.

    Time frame: Week 0 up to Week 12

  6. DB Period: Number of Participants Who Did Not Complete the Study Due to AEs

    An AE was defined as any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. SAEs were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. TEAEs were defined as AEs that occurred after the first dose of study drug was administered through end of the trial. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.

    Time frame: Week 0 up to Week 12

  7. OL Period: Number of Participants With at Least One TEAE

    An AE was defined as any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. SAEs were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. TEAEs were defined as AEs that occurred after the first dose of study drug was administered through end of the trial. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.

    Time frame: Week 12 up to Week 24

  8. OL Period: Number of Participants Who Did Not Complete the Study Due to AEs

    An AE was defined as any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. SAEs were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. TEAEs were defined as AEs that occurred after the first dose of study drug was administered through end of the trial. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.

    Time frame: Week 12 up to Week 24

  9. DB Period: Number of Participants Who Received Concomitant Medications for AEs

    Concomitant medications included all medications taken while the participant was treated with the study drug. Any concomitant medication received by the participant for AEs was recorded on the case report form (CRF). Concomitant medications included: butalbital for migraine/headache, ergots for migraine/headache, NSAIDs for migraine/headache, NSAIDs for other reason than migraine/headache, opioids for migraine/headache, opioids for reasons other reason than migraine/headache, preventive medication as specified in the protocol for migraine/headache, preventive medication as specified in the protocol for other reason than migraine/headache, triptans for migraine/headache.

    Time frame: Week 0 up to Week 12

  10. OL Period: Number of Participants Who Received Concomitant Medications for AEs

    Concomitant medications included all medications taken while the participant was treated with the study drug. Any concomitant medication received by the participant for AEs was recorded on the case report form (CRF). Concomitant medications included: butalbital for migraine/headache, ergots for migraine/headache, NSAIDs for migraine/headache, NSAIDs for other reason than migraine/headache, opioids for migraine/headache, opioids for reasons other reason than migraine/headache, preventive medication as specified in the protocol for migraine/headache, preventive medication as specified in the protocol for other reason than migraine/headache, triptans for migraine/headache.

    Time frame: Week 12 up to Week 24

  11. Number of Participants With Treatment Emergent Anti-Drug Antibodies (ADA)

    Time frame: Day 1 up to Day 225

  12. Number of Participants With Treatment-Emergent Neutralizing Antibodies (NAbs)

    Time frame: Day 1 up to Day 225

07

Results

Posted Jan 31, 2025

Participant flow

DB Period (12 Weeks)
Participant flow — DB Period (12 Weeks)
MilestonePlaceboFremanezumab MonthlyFremanezumab Quarterly
Started1839191
Db safety analysis set1839191
Db modified itt (mitt) analysis set1829089
Completed1778786
Not completed645
Withdrew: Adverse event211
Withdrew: Withdrawal by subject411
Withdrew: Non-compliance with trial drug001
Withdrew: Protocol deviation022
OL Period (12 Weeks)
Participant flow — OL Period (12 Weeks)
MilestonePlaceboFremanezumab MonthlyFremanezumab Quarterly
Started1758685
Ol safety analysis set1758685
Completed1748184
Not completed151
Withdrew: Adverse event121
Withdrew: Withdrawal by subject030

Outcome measures

PrimaryDouble Blind (DB) Period: Mean Change From Baseline in Monthly Average Number of Migraine Days During the 12-Week Period After the First Dose of Fremanezumab

A migraine day was defined as a calendar day where the participant reported either of the following: A calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for migraine with or without aura or; a calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for probable migraine, a migraine subtype where only 1 migraine criterion is missing; a calendar day (0:00 to 23:59) demonstrating a headache of any duration that was treated with migraine specific medications (triptans and ergot compounds). Monthly averages were derived and normalized to 28 days equivalent by formula: (number of days of efficacy variable over 12-week period/number of days with assessments recorded in e-diary for 12-week period) \* 28. Least square (LS) mean was calculated using analysis of covariance (ANCOVA).

Time frame:
Baseline (Day -28 to Day -1), up to Week 12
Reported as:
Least squares mean · days/month
Double Blind (DB) Period: Mean Change From Baseline in Monthly Average Number of Migraine Days During the 12-Week Period After the First Dose of Fremanezumab
days/monthPlaceboFremanezumab Monthly/Quarterly
Double Blind (DB) Period: Mean Change From Baseline in Monthly Average Number of Migraine Days During the 12-Week Period After the First Dose of Fremanezumab-2.8 ± 0.48-4.6 ± 0.48
Statistical analysis
  • Placebo vs Fremanezumab Monthly/Quarterly · ANCOVA · p = <0.0001 · Ls mean difference: -1.8 · 95% CI -2.66 to -0.95
SecondaryDB Period: Mean Change From Baseline in the Average Number of Migraine Days During the 4-Week Period After the First Dose of Fremanezumab

A migraine day was defined as a calendar day where the participant reported either of the following: A calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for migraine with or without aura or; a calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for probable migraine, a migraine subtype where only 1 migraine criterion is missing; a calendar day (0:00 to 23:59) demonstrating a headache of any duration that was treated with migraine specific medications (triptans and ergot compounds). Monthly averages were derived and normalized to 28 days equivalent by formula: (number of days of efficacy variable over 4-week period/number of days with assessments recorded in e-diary for 4-week period) \* 28.

Time frame:
Baseline (Day -28 to Day -1), Up to Week 4
Reported as:
Least squares mean · days
DB Period: Mean Change From Baseline in the Average Number of Migraine Days During the 4-Week Period After the First Dose of Fremanezumab
daysPlaceboFremanezumab Monthly/Quarterly
DB Period: Mean Change From Baseline in the Average Number of Migraine Days During the 4-Week Period After the First Dose of Fremanezumab-2.2 ± 0.52-4.5 ± 0.52
SecondaryDB Period: Mean Change From Baseline in the Monthly Average Number of Days of Use of Any Acute Headache Medications During the 12-Week Period After the First Dose of Fremanezumab

Participants recorded any headache medications (name of drug, number of tablets/capsules, and the dose in milligrams per tablet/capsule) taken each day in their electronic headache diary device. Acute headache medication included opioids, barbiturates, triptans, ergots, non-steroidal anti-inflammatory drugs (NSAIDs), acetaminophen and their combination products. Monthly averages were derived and normalized to 28 days equivalent by formula: (number of days of efficacy variable over 12-week period/number of days with assessments recorded in e-diary for 12-week period) \* 28.

Time frame:
Baseline (Day -28 to Day -1), Up to Week 12
Reported as:
Least squares mean · days/month
DB Period: Mean Change From Baseline in the Monthly Average Number of Days of Use of Any Acute Headache Medications During the 12-Week Period After the First Dose of Fremanezumab
days/monthPlaceboFremanezumab Monthly/Quarterly
DB Period: Mean Change From Baseline in the Monthly Average Number of Days of Use of Any Acute Headache Medications During the 12-Week Period After the First Dose of Fremanezumab-1.1 ± 0.41-3.0 ± 0.41
SecondaryDB Period: Number of Participants Reaching at Least 50% Reduction From Baseline in Monthly Average Number of Migraine Days During the 12-Week Period After the First Dose of Fremanezumab

A migraine day was defined as a calendar day where the participant reported either of the following: A calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for migraine with or without aura or; a calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of a headache meeting the criteria for probable migraine, a migraine subtype where only 1 migraine criterion is missing; a calendar day (0:00 to 23:59) demonstrating a headache of any duration that was treated with migraine specific medications (triptans and ergot compounds). Monthly averages were derived and normalized to 28 days equivalent by formula: (number of days of efficacy variable over 12-week period/number of days with assessments recorded in e-diary for 12-week period) \* 28.

Time frame:
Baseline (Day -28 to Day-1), Up to Week 12
Reported as:
Count of participants · Participants
DB Period: Number of Participants Reaching at Least 50% Reduction From Baseline in Monthly Average Number of Migraine Days During the 12-Week Period After the First Dose of Fremanezumab
ParticipantsPlaceboFremanezumab Monthly/Quarterly
DB Period: Number of Participants Reaching at Least 50% Reduction From Baseline in Monthly Average Number of Migraine Days During the 12-Week Period After the First Dose of Fremanezumab63103
SecondaryDB Period: Mean Change From Baseline in the Monthly Average Number of Headache Days of at Least Moderate Severity During the 12-Week Period After the First Dose of Fremanezumab

A headache day of at least moderate severity was defined as a calendar day (00:00 to 23:59) where the participant reported either of the following: A calendar day (0:00 to 23:59) demonstrating at least 2 consecutive hours of headache of at least moderate severity; or a calendar day (0:00 to 23:59) demonstrating a headache of any duration that was treated with migraine-specific acute medications (triptans and ergot compounds). Monthly averages were derived and normalized to 28 days equivalent by formula: (number of days of efficacy variable over 12-week period/number of days with assessments recorded in e-diary for 12-week period) \* 28.

Time frame:
Baseline (Day -28 to Day -1), Up to Week 12
Reported as:
Least squares mean · days/month
DB Period: Mean Change From Baseline in the Monthly Average Number of Headache Days of at Least Moderate Severity During the 12-Week Period After the First Dose of Fremanezumab
days/monthPlaceboFremanezumab Monthly/Quarterly
DB Period: Mean Change From Baseline in the Monthly Average Number of Headache Days of at Least Moderate Severity During the 12-Week Period After the First Dose of Fremanezumab-2.4 ± 0.43-4.5 ± 0.43
SecondaryDB Period: Number of Participants With At Least One Treatment-Emergent Adverse Event (TEAE)

An adverse event (AE) was defined as any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. Serious AEs (SAEs) were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. TEAEs were defined as AEs that occurred after the first dose of study drug was administered through end of the trial. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.

Time frame:
Week 0 up to Week 12
Reported as:
Count of participants · Participants
DB Period: Number of Participants With At Least One Treatment-Emergent Adverse Event (TEAE)
ParticipantsDB Period: PlaceboDB Period: Fremanezumab MonthlyDB Period: Fremanezumab Quarterly
DB Period: Number of Participants With At Least One Treatment-Emergent Adverse Event (TEAE)794837
SecondaryDB Period: Number of Participants Who Did Not Complete the Study Due to AEs

An AE was defined as any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. SAEs were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. TEAEs were defined as AEs that occurred after the first dose of study drug was administered through end of the trial. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.

Time frame:
Week 0 up to Week 12
Reported as:
Count of participants · Participants
DB Period: Number of Participants Who Did Not Complete the Study Due to AEs
ParticipantsDB Period: PlaceboDB Period: Fremanezumab MonthlyDB Period: Fremanezumab Quarterly
DB Period: Number of Participants Who Did Not Complete the Study Due to AEs211
SecondaryOL Period: Number of Participants With at Least One TEAE

An AE was defined as any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. SAEs were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. TEAEs were defined as AEs that occurred after the first dose of study drug was administered through end of the trial. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.

Time frame:
Week 12 up to Week 24
Reported as:
Count of participants · Participants
OL Period: Number of Participants With at Least One TEAE
ParticipantsOL Period: Placebo/FremanezumabOL Period: Fremanezumab MonthlyOL Period: Fremanezumab Quarterly
OL Period: Number of Participants With at Least One TEAE784038
SecondaryOL Period: Number of Participants Who Did Not Complete the Study Due to AEs

An AE was defined as any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. SAEs were defined as death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, a congenital anomaly or birth defect, or an important medical event that jeopardized participant and required medical intervention to prevent 1 of the outcomes listed in this definition. TEAEs were defined as AEs that occurred after the first dose of study drug was administered through end of the trial. A summary of other non-serious AEs and all serious AEs, regardless of causality is located in Reported AE section.

Time frame:
Week 12 up to Week 24
Reported as:
Count of participants · Participants
OL Period: Number of Participants Who Did Not Complete the Study Due to AEs
ParticipantsOL Period: Placebo/FremanezumabOL Period: Fremanezumab MonthlyOL Period: Fremanezumab Quarterly
OL Period: Number of Participants Who Did Not Complete the Study Due to AEs111
SecondaryDB Period: Number of Participants Who Received Concomitant Medications for AEs

Concomitant medications included all medications taken while the participant was treated with the study drug. Any concomitant medication received by the participant for AEs was recorded on the case report form (CRF). Concomitant medications included: butalbital for migraine/headache, ergots for migraine/headache, NSAIDs for migraine/headache, NSAIDs for other reason than migraine/headache, opioids for migraine/headache, opioids for reasons other reason than migraine/headache, preventive medication as specified in the protocol for migraine/headache, preventive medication as specified in the protocol for other reason than migraine/headache, triptans for migraine/headache.

Time frame:
Week 0 up to Week 12
Reported as:
Count of participants · Participants
DB Period: Number of Participants Who Received Concomitant Medications for AEs
ParticipantsDB Period: PlaceboDB Period: Fremanezumab MonthlyDB Period: Fremanezumab Quarterly
DB Period: Number of Participants Who Received Concomitant Medications for AEs512823
SecondaryOL Period: Number of Participants Who Received Concomitant Medications for AEs

Concomitant medications included all medications taken while the participant was treated with the study drug. Any concomitant medication received by the participant for AEs was recorded on the case report form (CRF). Concomitant medications included: butalbital for migraine/headache, ergots for migraine/headache, NSAIDs for migraine/headache, NSAIDs for other reason than migraine/headache, opioids for migraine/headache, opioids for reasons other reason than migraine/headache, preventive medication as specified in the protocol for migraine/headache, preventive medication as specified in the protocol for other reason than migraine/headache, triptans for migraine/headache.

Time frame:
Week 12 up to Week 24
Reported as:
Count of participants · Participants
OL Period: Number of Participants Who Received Concomitant Medications for AEs
ParticipantsOL Period: Placebo/FremanezumabOL Period: Fremanezumab MonthlyOL Period: Fremanezumab Quarterly
OL Period: Number of Participants Who Received Concomitant Medications for AEs462630
SecondaryNumber of Participants With Treatment Emergent Anti-Drug Antibodies (ADA)
Time frame:
Day 1 up to Day 225
Reported as:
Count of participants · Participants
Number of Participants With Treatment Emergent Anti-Drug Antibodies (ADA)
ParticipantsPlaceboFremanezumab MonthlyFremanezumab Quarterly
Number of Participants With Treatment Emergent Anti-Drug Antibodies (ADA)28119
SecondaryNumber of Participants With Treatment-Emergent Neutralizing Antibodies (NAbs)
Time frame:
Day 1 up to Day 225
Reported as:
Count of participants · Participants
Number of Participants With Treatment-Emergent Neutralizing Antibodies (NAbs)
ParticipantsPlaceboFremanezumab MonthlyFremanezumab Quarterly
Number of Participants With Treatment-Emergent Neutralizing Antibodies (NAbs)27119

Adverse events

Collected over Day 1 up to Day 225. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
DB Period: Placebo0/183 (0%)1/183 (0.5%)30/183 (16.4%)
DB Period: Fremanezumab Monthly0/91 (0%)2/91 (2.2%)23/91 (25.3%)
DB Period: Fremanezumab Quarterly0/91 (0%)0/91 (0%)15/91 (16.5%)
OL Period: Placebo0/175 (0%)0/175 (0%)33/175 (18.9%)
OL Period: Fremanezumab Monthly0/86 (0%)2/86 (2.3%)23/86 (26.7%)
OL Period: Fremanezumab Quarterly0/85 (0%)2/85 (2.4%)16/85 (18.8%)
Most frequent serious events
Most frequent serious events
EventDB Period: PlaceboDB Period: Fremanezumab MonthlyDB Period: Fremanezumab QuarterlyOL Period: PlaceboOL Period: Fremanezumab MonthlyOL Period: Fremanezumab Quarterly
PneumoniaInfections and infestations1/1830/910/910/1750/861/85
NeurodermatitisSkin and subcutaneous tissue disorders0/1830/910/910/1750/861/85
VasculitisVascular disorders0/1830/910/910/1750/861/85
Pneumonia bacterialInfections and infestations0/1830/910/910/1751/860/85
HeadacheNervous system disorders0/1830/910/910/1751/860/85
ArrhythmiaCardiac disorders0/1831/910/910/1750/860/85
COVID-19 pneumoniaInfections and infestations0/1831/910/910/1750/860/85
Most frequent other events
Most frequent other events
EventDB Period: PlaceboDB Period: Fremanezumab MonthlyDB Period: Fremanezumab QuarterlyOL Period: PlaceboOL Period: Fremanezumab MonthlyOL Period: Fremanezumab Quarterly
HyperlipidaemiaMetabolism and nutrition disorders3/1831/915/913/1759/862/85
Upper respiratory tract infectionInfections and infestations17/1839/917/9118/1758/868/85
Injection site erythemaGeneral disorders4/1835/914/915/1756/863/85
Injection site swellingGeneral disorders6/1835/912/917/1756/864/85
Injection site pruritusGeneral disorders1/1836/913/915/1755/863/85
COVID-19Infections and infestations6/1835/912/914/1750/861/85

Baseline characteristics

The intent-to-treat (ITT) analysis set included all randomized participants.

Age, Continuous
Age, Continuous(years)PlaceboFremanezumab MonthlyFremanezumab QuarterlyTotal
Mean38.8 ± 10.0338.6 ± 9.4239.7 ± 10.8938.9 ± 10.09
Sex: Female, Male
Sex: Female, Male(Participants)PlaceboFremanezumab MonthlyFremanezumab QuarterlyTotal
Female1427173286
Male41201879
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)PlaceboFremanezumab MonthlyFremanezumab QuarterlyTotal
Hispanic or Latino0000
Not Hispanic or Latino1839190364
Unknown or Not Reported0011
Race (NIH/OMB)
Race (NIH/OMB)(Participants)PlaceboFremanezumab MonthlyFremanezumab QuarterlyTotal
American Indian or Alaska Native0000
Asian1839191365
Native Hawaiian or Other Pacific Islander0000
Black or African American0000
White0000
More than one race0000
Unknown or Not Reported0000
Number of Migraine Days
Number of Migraine Days(days)PlaceboFremanezumab MonthlyFremanezumab QuarterlyTotal
Mean11.0 ± 4.9610.4 ± 5.9410.4 ± 5.2010.7 ± 5.27
08

Study locations

29 sites
  • Teva Investigational Site 88028
    Baotou Shi, 014060, China
  • Teva Investigational Site 88004
    Beijing, 100044, China
  • Teva Investigational Site 88001
    Beijing, 100853, China
  • Teva Investigational Site 88008
    Changchun, 130021, China
  • Teva Investigational Site 88009
    Changchun, 130041, China
  • Teva Investigational Site 88022
    Changsha Shi, 410008, China
  • Teva Investigational Site 88030
    Changsha Shi, 410013, China
  • Teva Investigational Site 88003
    Chengdu, 610041, China
  • Teva Investigational Site 88029
    Chongqing, 400700, China
  • Teva Investigational Site 88019
    Fuzhou, 350001, China
  • Teva Investigational Site 88020
    Guangzhou, 510260, China
  • Teva Investigational Site 88013
    Guiyang, 550004, China
  • Teva Investigational Site 88026
    Harbin, 150001, China
  • Teva Investigational Site 88010
    Lianyungang, 222002, China
  • Teva Investigational Site 88005
    Luoyang, 4710039, China
  • Teva Investigational Site 88033
    Rizhao, 276800, China
  • Teva Investigational Site 88021
    Shanghaishi, 200040, China
  • Teva Investigational Site 88025
    Shanghaishi, 200120, China
  • Teva Investigational Site 88016
    Shenyang, 110016, China
  • Teva Investigational Site 88011
    Shijiazhuang, 50073, China
  • Teva Investigational Site 88015
    Suzhou, 215004, China
  • Teva Investigational Site 88024
    Tianjin, 300052, China
  • Teva Investigational Site 88023
    Tianjin, 300120, China
  • Teva Investigational Site 88017
    Wenzhou, 325000, China
  • Teva Investigational Site 88012
    Wuhan, 430030, China
  • Teva Investigational Site 88006
    Wuhan, 430071, China
  • Teva Investigational Site 88032
    Xining, 810007, China
  • Teva Investigational Site 88031
    Zhanjiang, 524008, China
  • Teva Investigational Site 88034
    Zhengzhou, 450003, China
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — Qualified researchers may request access to patient level data and related study documents including the study protocol and the statistical analysis plan. Requests will be reviewed for scientific merit, product approval status, and conflicts of interest. Patient level data will be de-identified and study documents will be redacted to protect the privacy of trial participants and to protect commercially confidential information. Please email USMedInfo@tevapharm.com to make your request.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Sep 2022 to primary completion in Jan 2024, 16 months.

Results were first posted in Jan 2025, 1 year after primary completion.

Of 114 industry-sponsored phase 3 interventional studies under Migraine Disorders, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 31. This study's 16 months is below that.

Counting every sponsor, half of 140 studies reached it within 19 months; a quarter within 12 and three quarters within 40.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 11, 2022
First posted
Jul 14, 2022
StartActual
Sep 30, 2022
Primary completionActual
Jan 31, 2024
CompletionActual
Jun 13, 2024
Results first posted
Jan 31, 2025
Last update
Nov 26, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 26, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05458011
Responsible party
Sponsor
First posted
Jul 14, 2022
Start date
Sep 30, 2022
Primary completion
Jan 31, 2024
Completion
Jun 13, 2024
Results posted
Jan 31, 2025
Last update
Nov 26, 2025

Study contacts

Teva Medical Expert, MD
study director · Teva Branded Pharmaceutical Products R&D, Inc.

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Fremanezumab

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