Trial Outcomes & Findings for A Study To Assess the Safety of OnabotulinumtoxinA (BOTOX) Intramuscular Injection in Adult Participants With Platysma Prominence (NCT NCT05134649)

NCT ID: NCT05134649

Last Updated: 2024-12-05

Results Overview

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.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

292 participants

Primary outcome timeframe

371 days (from enrollment in the lead-in study M21-309 through end of study M21-323)

Results posted on

2024-12-05

Participant Flow

A total of 292 participants were enrolled at 28 sites in the United States and Canada. All participants received at least 1 dose of open-label BOTOX and were included in the intent-to-treat (ITT) and safety populations.

Safety analyses were carried out for the Safety Analysis Set (Safety Population), which consisted of all participants who received study drug in both the lead-in study and in this study (N=292).

Participant milestones

Participant milestones
Measure
BOTOX
BOTOX (OnabotulinumtoxinA) was injected into the platysma muscle for up to 3 cycles during study M21-323.
Overall Study
STARTED
292
Overall Study
COMPLETED
262
Overall Study
NOT COMPLETED
30

Reasons for withdrawal

Reasons for withdrawal
Measure
BOTOX
BOTOX (OnabotulinumtoxinA) was injected into the platysma muscle for up to 3 cycles during study M21-323.
Overall Study
Lost to Follow-up
12
Overall Study
Withdrawal by Subject
14
Overall Study
Pregnancy
1
Overall Study
Other, not specified
3

Baseline Characteristics

A Study To Assess the Safety of OnabotulinumtoxinA (BOTOX) Intramuscular Injection in Adult Participants With Platysma Prominence

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
BOTOX
n=292 Participants
BOTOX (OnabotulinumtoxinA) was injected into the platysma muscle for up to 3 cycles during study M21-323.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
278 Participants
n=5 Participants
Age, Categorical
>=65 years
14 Participants
n=5 Participants
Age, Continuous
49.6 Years
STANDARD_DEVIATION 9.76 • n=5 Participants
Sex: Female, Male
Female
273 Participants
n=5 Participants
Sex: Female, Male
Male
19 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
31 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
261 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
15 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
12 Participants
n=5 Participants
Race (NIH/OMB)
White
265 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 371 days (from enrollment in the lead-in study M21-309 through end of study M21-323)

Population: Safety Analysis Set

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.

Outcome measures

Outcome measures
Measure
Placebo (Lead-in)
n=151 Participants
Participants who received placebo in M21-309 until they received their first BOTOX treatment or discontinued in M21-323.
BOTOX (Cycle 1)
n=292 Participants
Participants who received their first BOTOX treatment until they received their next BOTOX treatment or discontinued in M21-323. The first BOTOX treatment may have been in M21-309 or M21-323.
BOTOX (Cycle 2)
n=268 Participants
Participants who received their second BOTOX treatment until they received their next BOTOX treatment or discontinued in M21-323. The first BOTOX treatment may have been in M21-309 or M21-323.
BOTOX (Cycle 3)
n=177 Participants
Participants who received their third BOTOX treatment until they received their next BOTOX treatment or discontinued in M21-323. The first BOTOX treatment may have been in M21-309 or M21-323.
BOTOX (Cycle 4)
n=54 Participants
Participants who received their fourth BOTOX treatment until they until they discontinued or completed M21-323. The first BOTOX treatment was administered in M21-309.
BOTOX (All Treatment Cycles)
n=292 Participants
Participants who received at least one BOTOX treatment in either M21-309 or M21-323 and were enrolled in M21-323.
Total
n=292 Participants
Participants who received any study drug in either M21-309 or M21-323 and were enrolled in M21-323.
Number of Participants With Adverse Events
33 Participants
74 Participants
46 Participants
26 Participants
11 Participants
111 Participants
127 Participants

Adverse Events

BOTOX

Serious events: 2 serious events
Other events: 42 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
BOTOX
n=292 participants at risk
BOTOX (OnabotulinumtoxinA) was injected into the platysma muscle for up to 3 cycles during study M21-323.
Infections and infestations
CELLULITIS
0.34%
1/292 • Number of events 1 • All-cause mortality and adverse event tables include events reported from enrollment in M21-323 to the end of study. The median time participants were followed was 239.0 days.
Metabolism and nutrition disorders
HYPONATRAEMIA
0.34%
1/292 • Number of events 1 • All-cause mortality and adverse event tables include events reported from enrollment in M21-323 to the end of study. The median time participants were followed was 239.0 days.

Other adverse events

Other adverse events
Measure
BOTOX
n=292 participants at risk
BOTOX (OnabotulinumtoxinA) was injected into the platysma muscle for up to 3 cycles during study M21-323.
General disorders
INJECTION SITE BRUISING
4.1%
12/292 • Number of events 13 • All-cause mortality and adverse event tables include events reported from enrollment in M21-323 to the end of study. The median time participants were followed was 239.0 days.
Infections and infestations
COVID-19
7.5%
22/292 • Number of events 22 • All-cause mortality and adverse event tables include events reported from enrollment in M21-323 to the end of study. The median time participants were followed was 239.0 days.
Infections and infestations
NASOPHARYNGITIS
4.1%
12/292 • Number of events 14 • All-cause mortality and adverse event tables include events reported from enrollment in M21-323 to the end of study. The median time participants were followed was 239.0 days.

Additional Information

Global Medical Services

AbbVie

Phone: 800-633-9110

Results disclosure agreements

  • Principal investigator is a sponsor employee AbbVie requests that any investigator or institution that plans on presenting/publishing results disclosure, provide written notification of their request 60 days prior to their presentation/publication. AbbVie requests that no presentation/publication will be instituted until 12 months after a study is completed, or after the first presentation/publication whichever occurs first. A delay may be proposed of a presentation/publication if AbbVie needs to secure patent or proprietary protection.
  • Publication restrictions are in place

Restriction type: OTHER