The Merz aesthetics scales (MAS) are 5-point scales used to identify responders in a clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. GFL-response was defined as a score of 0 (no) or 1 (mild) and at least two-grade improvement from baseline to Day 30 of main period on MAS for GFL at maximum contraction as assessed by both the investigator and the subject. The MAS for GFL ranged as 0 to 4 where 0 is "No glabellar lines", 1 is "Mild glabellar lines", 2 is "Moderate glabellar lines", 3 is "Severe glabellar lines" and 4 is "Very severe glabellar lines".

Target population of main primary estimand included subjects with HFL, GFL and LCL of moderate to severe intensity at maximum contraction as assessed by investigator and subject according to MAS, as randomized in this study: Subset of subjects randomized to UFL (Group U) or to placebo (Group P) groups, grouped by randomized treatment assignment.

The MAS are 5-point scales used to identify responders in a clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. HFL-response was defined as a score of 0 (no) or 1 (mild) and at least two-grade improvement from baseline to Day 30 of main period on MAS for HFL at maximum contraction as assessed by both the investigator and the subject. The MAS for HFL ranged as 0 to 4 where 0 is "No lines", 1 is "Mild lines", 2 is "Moderate lines", 3 is "Severe lines" and 4 is "Very severe lines".

Target population of main primary estimand included subjects with HFL, GFL and LCL of moderate to severe intensity at maximum contraction as assessed by investigator and subject according to MAS, as randomized in this study: Subset of subjects randomized to UFL (Group U) or to placebo (Group P) groups, grouped by randomized treatment assignment.

The MAS are 5-point scales used to identify responders in a clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. LCL-response was defined as a score of 0 (no) or 1 (mild) and at least two-grade improvement from baseline to Day 30 of main period on MAS for both left and right LCL at maximum contraction as assessed by both the investigator and the subject. The MAS for LCL ranged as 0 to 4 where 0 is "No lines", 1 is "Mild lines", 2 is "Moderate lines", 3 is "Severe lines" and 4 is "Very severe lines".

Target population of main primary estimand included subjects with HFL, GFL and LCL of moderate to severe intensity at maximum contraction as assessed by investigator and subject according to MAS, as randomized in this study: Subset of subjects randomized to UFL (Group U) or to placebo (Group P) groups, grouped by randomized treatment assignment.

The MAS are 5-point scales used to identify responders in clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. MAS for GFL ranged as 0 to 4, where 0 is "No glabellar lines", 1 is "Mild glabellar lines", 2 is "Moderate glabellar lines", 3 is "Severe glabellar lines" and 4 is "Very severe glabellar lines".

Target population of main key secondary estimand included subjects with HFL, GFL and LCL of moderate to severe intensity at maximum contraction as assessed by investigator and subject according to MAS, as randomized in this study: Subset of subjects randomized to UFL (Group U) or to placebo (Group P) groups, grouped by randomized treatment assignment.

The MAS are 5-point scales used to identify responders in clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. The MAS for HFL ranged as 0 to 4 where 0 is "No lines", 1 is "Mild lines", 2 is "Moderate lines", 3 is "Severe lines" and 4 is "Very severe lines".

Target population of main key secondary estimand included subjects with HFL, GFL and LCL of moderate to severe intensity at maximum contraction as assessed by investigator and subject according to MAS, as randomized in this study: Subset of subjects randomized to UFL (Group U) or to placebo (Group P) groups, grouped by randomized treatment assignment.

The MAS are 5-point scales used to identify responders in clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. The MAS for LCL ranged as 0 to 4 where 0 is "No lines", 1 is "Mild lines", 2 is "Moderate lines", 3 is "Severe lines" and 4 is "Very severe lines".

Target population of main key secondary estimand included subjects with HFL, GFL and LCL of moderate to severe intensity at maximum contraction as assessed by investigator and subject according to MAS, as randomized in this study: Subset of subjects randomized to UFL (Group U) or to placebo (Group P) groups, grouped by randomized treatment assignment.

The MAS are 5-point scales used to identify responders in clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. The MAS for GFL ranged as 0 to 4, where 0 is "No glabellar lines", 1 is "Mild glabellar lines", 2 is "Moderate glabellar lines", 3 is "Severe glabellar lines" and 4 is "Very severe glabellar lines".

Target population of main key secondary estimand included subjects with HFL, GFL and LCL of moderate to severe intensity at maximum contraction as assessed by investigator and subject according to MAS, as randomized in this study: Subset of subjects randomized to UFL (Group U) or to placebo (Group P) groups, grouped by randomized treatment assignment.

The MAS are 5-point scales used to identify responders in clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. The MAS for HFL ranged as 0 to 4 where 0 is "No lines", 1 is "Mild lines", 2 is "Moderate lines", 3 is "Severe lines" and 4 is "Very severe lines".

Target population of main key secondary estimand included subjects with HFL, GFL and LCL of moderate to severe intensity at maximum contraction as assessed by investigator and subject according to MAS, as randomized in this study: Subset of subjects randomized to UFL (Group U) or to placebo (Group P) groups, grouped by randomized treatment assignment.

The MAS are 5-point scales used to identify responders in clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. The MAS for LCL ranged as 0 to 4 where 0 is "No lines", 1 is "Mild lines", 2 is "Moderate lines", 3 is "Severe lines" and 4 is "Very severe lines".

Target population of main key secondary estimand included subjects with HFL, GFL and LCL of moderate to severe intensity at maximum contraction as assessed by investigator and subject according to MAS, as randomized in this study: Subset of subjects randomized to UFL (Group U) or to placebo (Group P) groups, grouped by randomized treatment assignment.

The GAIS is a 7-point Likert scale capturing the global aesthetic improvement ranging from +3 (very much improved); +2 (much improved); +1 (improved); 0 (no change); -1 (worse); -2 (much worse); -3 (very much worse), as assessed by the subject. GAIS as assessed by the subject at Day 30 was analyzed using an analysis of covariance (ANCOVA) model.

Target population of main key secondary estimand included subjects with HFL, GFL and LCL of moderate to severe intensity at maximum contraction as assessed by investigator and subject according to MAS, as randomized in this study: Subset of subjects randomized to UFL (Group U) or to placebo (Group P) groups, grouped by randomized treatment assignment.

The MAS are 5-point scales used to identify responders in a clinical context. They are validated photograph- based outcome instruments designed specifically for assessment of each upper facial area. The MAS for GFL ranged as 0 to 4 where 0 is "No glabellar lines", 1 is "Mild glabellar lines", 2 is "Moderate glabellar lines", 3 is "Severe glabellar lines" and 4 is "Very severe glabellar lines".

FAS. Here "overall number of subjects analyzed" were subjects who had non-missing data for this outcome measure.

The MAS are 5-point scales used to identify responders in a clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. The MAS for HFL ranged as 0 to 4 where 0 is "No lines", 1 is "Mild lines", 2 is "Moderate lines", 3 is "Severe lines" and 4 is "Very severe lines".

FAS. Here "overall number of subjects analyzed" were subjects who had non-missing data for this outcome measure.

The MAS are 5-point scales used to identify responders in a clinical context. They are validated photograph-based outcome instruments designed specifically for assessment of each upper facial area. The MAS for LCL ranged as 0 to 4 where 0 is "No lines", 1 is "Mild lines", 2 is "Moderate lines", 3 is "Severe lines" and 4 is "Very severe lines".

FAS. Here "overall number of subjects analyzed" were subjects who had non-missing data for this outcome measure.

The GAIS is a 7-point Likert scale capturing the global aesthetic improvement ranging from +3 (very much improved); +2 (much improved); +1 (improved); 0 (no change); -1 (worse); -2 (much worse); -3 (very much worse), as assessed by the investigator. GAIS as assessed by the investigator at Day 30 was analyzed using an ANCOVA model.

FAS. Here "overall number of subjects analyzed" were subjects who had non-missing data for this outcome measure.

TEAEs during the Main Period are defined as adverse events (AEs) with onset or worsening on or after date and time of first dose of study treatment and before date and time of first administration of study treatment in the OLEX period or the final study visit, if subject was not treated in the OLEX period. An AE is considered to be related if a causal relationship between study treatment and the AE is at least reasonably possible.

The Safety Evaluation Set (SES) included all subjects treated.

TEAEs of the OLEX period are defined as adverse events (AEs) with onset or worsening on or after date and time of first dose of study treatment in the OLEX period up to and including the final study visit. An AE is considered to be related if a causal relationship between study treatment and the AE is at least reasonably possible.

SES.