Skip to content

A Study of OnabotulinumtoxinA X Injection in Adult Participants With Glabellar Lines

A Phase 2a Multicenter Open-label Study to Evaluate the Safety and Efficacy of OnabotulinumtoxinA X in Subjects With Glabellar Lines

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05013424
Enrollment
92
Registered
2021-08-19
Start date
2021-09-01
Completion date
2022-07-07
Last updated
2025-06-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glabellar Lines

Keywords

Glabellar Lines, OnabotulinumtoxinA X, BOTOX

Brief summary

Hyperfunctional facial lines that develop from repeated facial expression, such as glabellar lines (GL), are typically treated by selectively weakening specific muscles with small quantities of botulinum toxin. BOTOX (onabotulinumtoxinA) was first approved for aesthetic treatment of glabellar lines in 2001 and is one of the most common nonsurgical procedures in aesthetic medicine. This is a proof-of-concept study to evaluate how safe this new OnabotA X formulation is in treating adult participants with GL . OnabotA X is an onabotulinumtoxinA investigational product being developed for the treatment of moderate to severe glabellar lines (GL). This is a 180-day, open-label study to assess the safety of a single dose of 3 different formulations of OnabotA X (A, B & C; each with varying amounts of the standard excipients in the formulation) in adult subjects with moderate to severe GL. Around 90 participants will be enrolled in the study in approximately 5 sites in the United States. Participants will receive one dose of OnabotA X administered as 5 injections on Day 1. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular weekly 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.

Interventions

DRUGFormulation A: OnabotulinumtoxinA

Intramuscular Injection

DRUGFormulation B: OnabotulinumtoxinA

Intramuscular Injection

DRUGFormulation C: OnabotulinumtoxinA

Intramuscular Injection

Sponsors

Allergan
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

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 severe GL at maximum frown as assessed by both the investigator and participant using the Facial Wrinkle Scale - Glabellar Lines (FWS-GL) at Baseline.

Exclusion criteria

* History of known immunization to any botulinum toxin serotype. * History of known hypersensitivity to any botulinum toxin serotype, or any other constituents of the study drug or its excipients, 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 OnabotA 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 * Marked facial asymmetry, dermatochalasis, deep dermal scarring, excessively thick sebaceous skin, excessively photodamaged skin, or the inability to substantially lessen facial lines even by physically spreading them apart * Any eyebrow or eyelid ptosis at baseline or Day 1 as determined by the investigator

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)Day 1 to Day 180An 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. 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 the study drug.

Countries

United States

Participant flow

Participants by arm

ArmCount
Formulation A: OnabotulinumtoxinA
Participants will receive one dose of OnabotA X administered as 5 injections to the corrugator and procerus muscles on Day 1. Formulation A: OnabotulinumtoxinA: Intramuscular Injection
29
Formulation B: OnabotulinumtoxinA
Participants will receive one dose of OnabotA X administered as 5 injections to the corrugator and procerus muscles on Day 1. Formulation B: OnabotulinumtoxinA: Intramuscular Injection
31
Formulation C: OnabotulinumtoxinA
Participants will receive one dose of OnabotA X administered as 5 injections to the corrugator and procerus muscles on Day 1. Formulation C: OnabotulinumtoxinA: Intramuscular Injection
31
Total91

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up111
Overall StudyWithdrawal by Subject010

Baseline characteristics

CharacteristicFormulation A: OnabotulinumtoxinAFormulation B: OnabotulinumtoxinAFormulation C: OnabotulinumtoxinATotal
Age, Continuous52.2 years
STANDARD_DEVIATION 11.47
45.7 years
STANDARD_DEVIATION 9.97
49.4 years
STANDARD_DEVIATION 9.96
49.0 years
STANDARD_DEVIATION 10.69
Age, Customized
18-25 years
1 participants2 participants0 participants3 participants
Age, Customized
26-40 years
3 participants6 participants7 participants16 participants
Age, Customized
41-55 years
12 participants18 participants15 participants45 participants
Age, Customized
56-64 years
10 participants3 participants8 participants21 participants
Age, Customized
>=65 years
3 participants2 participants1 participants6 participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants8 Participants6 Participants19 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
24 Participants23 Participants25 Participants72 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
2 Participants0 Participants2 Participants4 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
27 Participants31 Participants28 Participants86 Participants
Sex: Female, Male
Female
29 Participants31 Participants31 Participants91 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 290 / 320 / 31
other
Total, other adverse events
4 / 299 / 327 / 31
serious
Total, serious adverse events
0 / 291 / 320 / 31

Outcome results

Primary

Number of Participants With Treatment-Emergent Adverse Events (TEAEs)

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. 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 the study drug.

Time frame: Day 1 to Day 180

Population: All participants who received at least 1 dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Formulation A: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Treatment-Emergent Adverse Events (TEAE)7 Participants
Formulation A: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE Related to Study Drug2 Participants
Formulation A: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE Related to Study Procedure0 Participants
Formulation A: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE Related to Study Treatment2 Participants
Formulation B: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE Related to Study Drug3 Participants
Formulation B: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE Related to Study Procedure4 Participants
Formulation B: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE Related to Study Treatment5 Participants
Formulation B: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Treatment-Emergent Adverse Events (TEAE)15 Participants
Formulation C: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE Related to Study Procedure1 Participants
Formulation C: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE Related to Study Treatment1 Participants
Formulation C: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Treatment-Emergent Adverse Events (TEAE)9 Participants
Formulation C: OnabotulinumtoxinANumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE Related to Study Drug1 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026