ClinicalTrials.gg
CompletedNCT05152576Updated Jul 16, 2025Results posted

A Study To Assess the Adverse Effects and Change in Condition of OnabotulinumtoxinA X Injection in Adult Participants With Forehead Lines

A Phase 2 interventional study of OnabotulinumtoxinA X and Placebo in Forehead Lines, sponsored by Allergan. Completed at 8 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-07-16.

Sponsored by Allergan (part of AbbVie) · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
124
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Facial lines that develop from repeated facial expression, such as forehead lines (FHL), are typically treated by selectively weakening specific muscles with small quantities of botulinum toxin. OnabotulinumtoxinA X is being investigated as another form of treatment to treat FHL by inhibiting the release of the neurotransmitter that causes the overactivity of the muscles responsible for the severity of these facial lines. The purpose of this study is to evaluate the safety and change in condition of 3 doses of OnabotulinumtoxinA X for the treatment of moderate to severe forehead lines.

Study doctors will determine if a subject is eligible for the study. If so, the subject will be randomized into 1 of the 4 groups, called treatment arms. There is a 1 in 4 chance that a participant will be assigned to placebo. Around 120 adult participants with FHL will be enrolled in the study in approximately 10 sites in the United States.

Participants will receive either intramuscular injections of onabotulinumtoxinA X or placebo.

There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular monthly visits during the study at the study site.

02

Conditions studied

  • Forehead Lines

Keywords

  • Forehead Lines
  • OnabotulinumtoxinA X
03

In context

Lead sponsor

Allergan is the lead sponsor of 505 studies on the registry; none are open to participants now.

Of its 93 completed or terminated interventional studies of FDA-regulated products, 91 (98%) have results posted.

First submitted after Allergan became part of AbbVie.

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

04

Who can participate

Ages eligible
18 Years and older
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

  • Participant has sufficient visual acuity without the use of eyeglasses (contact lens use is acceptable) to accurately assess their facial lines
  • Participant has moderate or severe Forehead Lines (FHL) at maximum eyebrow elevation

Exclusion criteria

Exclusion Criteria:

  • History of known immunization to any botulinum toxin serotype.
  • History of known to any botulinum toxin serotype, or any other constituents of the study drug or its , and/or other products in the same class.
  • Presence or history of any medical condition that may place the participant at increased risk following exposure to OnabotulinumtoxinA X or interfere with the study evaluation, including:

Diagnosed myasthenia gravis, Lambert-Eaton syndrome, amyotrophic lateral sclerosis, or any other significant disease that might interfere with neuromuscular function.

  • History of Facial nerve palsy.
  • Infection or dermatological condition at the site of study drug injection.
Terms in these criteria, in plain language(2)

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.

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.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
124 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    Placebo will be injected into the forehead on Day 1.

    Drug: Placebo

  • Experimental
    OnabotulinumtoxinA X Dose A

    OnabotulinumtoxinA X will be injected into the forehead on Day 1.

    Drug: OnabotulinumtoxinA X

  • Experimental
    OnabotulinumtoxinA X Dose B

    OnabotulinumtoxinA X will be injected into the forehead on Day 1.

    Drug: OnabotulinumtoxinA X

  • Experimental
    OnabotulinumtoxinA X Dose C

    OnabotulinumtoxinA X will be injected into the forehead on Day 1.

    Drug: OnabotulinumtoxinA X

Interventions

  • Intramuscular Injection

    Also known as: OnabotA X

  • DrugPlacebo

    Intramuscular Injection

06

What researchers measure

Primary outcomes

  1. Number of Participants With Adverse Events

    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 casual relationship with this treatment. The investigator assesses the relationship of each event to the use of the study. 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.

    Time frame: Day 1 to Day 180

  2. Percentage of Participants With Potentially Clinically Significant Vital Sign Parameters

    Percentage of participants with potentially clinically significant vital sign measurements like systolic and diastolic blood pressure will be assessed.

    Time frame: Day 1 to Day 180

  3. Percentage of Participants With Achievement of ≥ 1-grade Improvement From Baseline on the Investigator-rated Clinician Forehead Lines Scale at Maximum Contraction.

    Facial Wrinkle Scale - Forehead Lines (FWS-FHL) at maximum contraction (also known as eyebrow elevation) The Clinician Forehead Lines Scale is a four point scale used to assess the severity of forehead lines at maximum contraction ranging from 0 - None to 3 - Severe.

    Time frame: Day 1 to Day 30

07

Results

Posted Jul 16, 2025

Participant flow

Participant flow — Overall Study
MilestonePlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose C
Started30353128
Completed25343126
Not completed5102
Withdrew: Lost to follow-up3001
Withdrew: Withdrawal by subject0101
Withdrew: Other2000

Outcome measures

PrimaryNumber of Participants With Adverse Events

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 casual relationship with this treatment. The investigator assesses the relationship of each event to the use of the study. 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.

Time frame:
Day 1 to Day 180
Reported as:
Count of participants · Participants
Number of Participants With Adverse Events
ParticipantsPlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose C
Number of Participants With Adverse Events10121813
PrimaryPercentage of Participants With Potentially Clinically Significant Vital Sign Parameters

Percentage of participants with potentially clinically significant vital sign measurements like systolic and diastolic blood pressure will be assessed.

Time frame:
Day 1 to Day 180
Reported as:
Count of participants · Participants
Percentage of Participants With Potentially Clinically Significant Vital Sign Parameters
ParticipantsPlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose C
Systolic Blood Pressure (mmHg): ≥ 160 and Increase of ≥ 200111
Systolic Blood Pressure (mmHg): ≤ 90 and Decrease of ≥ 200110
Diastolic Blood Pressure (mmHg): ≥ 100 and Increase of ≥ 151000
Diastolic Blood Pressure (mmHg): ≤ 50 and Decrease of ≥ 150000
Heart Rate (beats/min): ≥ 110 and Increase of ≥ 150000
Heart Rate (beats/min): ≤ 50 and Decrease of ≥ 150000
Temperature (C): ≥ 38.30000
PrimaryPercentage of Participants With Achievement of ≥ 1-grade Improvement From Baseline on the Investigator-rated Clinician Forehead Lines Scale at Maximum Contraction.

Facial Wrinkle Scale - Forehead Lines (FWS-FHL) at maximum contraction (also known as eyebrow elevation) The Clinician Forehead Lines Scale is a four point scale used to assess the severity of forehead lines at maximum contraction ranging from 0 - None to 3 - Severe.

Time frame:
Day 1 to Day 30
Reported as:
Number · percentage of participants
Percentage of Participants With Achievement of ≥ 1-grade Improvement From Baseline on the Investigator-rated Clinician Forehead Lines Scale at Maximum Contraction.
percentage of participantsPlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose C
Percentage of Participants With Achievement of ≥ 1-grade Improvement From Baseline on the Investigator-rated Clinician Forehead Lines Scale at Maximum Contraction.58.6 (40.7 to 76.5)100 (100 to 100)96.8 (90.6 to 100)100 (100 to 100)
Statistical analysis
  • Placebo vs OnabotulinumtoxinA X Dose A · Cochran-Mantel-Haenszel · p = <0.001 (Based on CMH test stratified by baseline investigator-rated FWS-FHL at maximum.) · Rate difference: 41.4 · 95% CI 23.5 to 59.3
  • Placebo vs OnabotulinumtoxinA X Dose B · Cochran-Mantel-Haenszel · p = <0.001 (Based on CMH test stratified by baseline investigator-rated FWS-FHL at maximum.) · Rate difference: 38.2 · 95% CI 19.2 to 57.1
  • Placebo vs OnabotulinumtoxinA X Dose C · Cochran-Mantel-Haenszel · p = <0.001 (Based on CMH test stratified by baseline investigator-rated FWS-FHL at maximum.) · Rate difference: 41.4 · 95% CI 23.5 to 59.3

Adverse events

Collected over All-cause mortality and adverse event tables include events reported from the time of informed consent to the end of the study. The median time on follow-up was 190, 190, 191, and 189 days for Placebo, OnabotulinumtoxinA X Dose A, Dose B and Dose C, respectively.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo0/30 (0%)1/30 (3.3%)4/30 (13.3%)
OnabotulinumtoxinA X Dose A0/35 (0%)0/35 (0%)5/35 (14.3%)
OnabotulinumtoxinA X Dose B0/31 (0%)0/31 (0%)10/31 (32.3%)
OnabotulinumtoxinA X Dose C0/28 (0%)0/28 (0%)9/28 (32.1%)
Most frequent serious events
Most frequent serious events
EventPlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose C
KIDNEY INFECTIONInfections and infestations1/300/350/310/28
Most frequent other events
Most frequent other events
EventPlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose C
COVID-19Infections and infestations1/304/355/313/28
EYELID PTOSISEye disorders0/300/350/313/28
HEADACHENervous system disorders3/302/352/312/28
INJECTION SITE BRUISINGGeneral disorders0/300/351/312/28
INJECTION SITE PAINGeneral disorders1/300/352/312/28
INJECTION SITE SWELLINGGeneral disorders1/301/352/312/28
SINUSITISInfections and infestations0/300/350/312/28
ASYMPTOMATIC COVID-19Infections and infestations0/301/352/310/28

Baseline characteristics

Age, Continuous
Age, Continuous(years)PlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose CTotal
Mean46.1 ± 12.3343.7 ± 11.9746.6 ± 11.8250.5 ± 12.8746.6 ± 12.32
Age, Customized
Age, Customized(Participants)PlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose CTotal
18-2512205
26-409117835
41-55111613949
56-64859729
>=6511046
Sex: Female, Male
Sex: Female, Male(Participants)PlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose CTotal
Female26282826108
Male473216
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)PlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose CTotal
Hispanic or Latino634619
Not Hispanic or Latino24322722105
Unknown or Not Reported00000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)PlaceboOnabotulinumtoxinA X Dose AOnabotulinumtoxinA X Dose BOnabotulinumtoxinA X Dose CTotal
American Indian or Alaska Native00000
Asian00213
Native Hawaiian or Other Pacific Islander00000
Black or African American01102
White30342826118
More than one race00011
Unknown or Not Reported00000
08

Study locations

8 sites
  • The Eye Research Foundation /ID# 241512
    Newport Beach, California 92663-3637, United States
  • Steve Yoelin MD Medical Associate Inc /ID# 239771
    Newport Beach, California 92663, United States
  • The Center for Dermatology Cosmetics & Laser Surgery /ID# 239776
    Mount Kisco, New York 10549-3028, United States
  • Skin Search of Rochester Inc. /ID# 239773
    Rochester, New York 14623, United States
  • Dermatology Consulting Service /ID# 239779
    High Point, North Carolina 27262, United States
  • Wilmington Dermatology Center /ID# 239778
    Wilmington, North Carolina 28403, United States
  • Dallas Plastic Surgery Institute /ID# 239777
    Dallas, Texas 75231, United States
  • Duplicate_Austin Institute for Clinical Research /ID# 239783
    Pflugerville, Texas 78660, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — AbbVie is committed to responsible data sharing regarding the clinical trials we sponsor. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information (e.g., protocols, analyses plans, clinical study reports), as long as the trials are not part of an ongoing or planned regulatory submission. This includes requests for clinical trial data for unlicensed products and indications.

Supporting information: Study protocol, Statistical analysis plan, Clinical study report

Time frame: For details on when studies are available for sharing visit https://vivli.org/ourmember/abbvie/

Access criteria: Access to this clinical trial data can be requested by any qualified researchers who engage in rigorous independent scientific research, and will be provided following review and approval of a research proposal and statistical analysis plan and execution of a data sharing statement. Data requests can be submitted at any time after approval in the US and/or EU and a primary manuscript is accepted for publication. For more information on the process, or to submit a request, visit the following link https://www.abbvieclinicaltrials.com/hcp/data-sharing/

Data sharing details ↗ · vivli.org

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 16, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05152576
Lead sponsor
Allergan
Responsible party
Sponsor
First posted
Dec 10, 2021
Start date
Nov 29, 2021
Primary completion
Sep 6, 2022
Completion
Sep 6, 2022
Results posted
Jul 16, 2025
Last update
Jul 16, 2025

Study contacts

ALLERGAN INC.
study director · Allergan

Oversight

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

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Studies of the drug tested here: Botulinum toxin type A

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