The study objective was to show the superior efficacy of IncobotulinumtoxinA (Xeomin) over placebo by evaluation of treatment success analyzing the investigator's rating on the Facial Wrinkle Scale and the patient's assessment on a 4-point scale. 255 female and male patients with moderate to severe glabellar frown lines to be randomized in a 2:1 ratio to receive one injection of IncobotulinumtoxinA (Xeomin) or placebo and will be followed up until day 120.
The study was a prospective, randomized, double-blind, placebo-controlled, parallel-group, multicenter phase 3 clinical trial. Approximately 285 females and males with moderate to severe glabellar frown lines at maximum frown were to be screened during a screening period of four months in order to randomize approximately 255 subjects into one treatment and one placebo group at a ratio of 2 : 1. After the single injection treatment with a total dose of 20 Units IncobotulinumtoxinA (Xeomin) or corresponding placebo, the subjects were observed over 120 days. During the study participation the subjects performed seven visits. Eight (8) sites in the United States and Canada participated in this trial. The study was led by one Lead PI and a Co-Lead PI who was assisting the Lead PI. The role of the Lead PI and the Co-Lead PI was executed by one of the PIs of this study, respectively. The PI at each site was a medical doctor who was experienced in aesthetic dermatology, i.e. who had several years (\>=2 years) of experience in treatment of glabellar frown lines with BTX-A preparations. The PI was the person who led the team at one trial site and who was responsible for the conduct of the clinical trial at the site. The sub-investigator was a member of the team designated by the PI to perform important trial-related decisions. A maximum number of two sub-investigators could be authorized for injection and rating if necessary. At each site, ideally one investigator was to inject and rate all subjects. Injecting and rating sub-investigators had to be medical doctors with several years of experience in treatment of glabellar frown lines with BTX-A preparations. A subject had to be rated by the same investigator at all visits. Another phase 3 trial MRZ 60201-0741/1 (NCT00770211) with design and endpoints identical to those in this trial was performed in order to compare efficacy and safety results with a second study population.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
276
The treatment will be administered only once at day 0 at five injection sites in the glabellar area. The total dose of 20 Units IncobotulinumtoxinA (Xeomin) is reconstituted in a total injection volume of 0.5 mL that is to be injected to the five sites in equal aliquots of 0.1 mL.
The treatment will be administered only once at day 0 at five injection sites in the glabellar area. Volume of Placebo equivalent to IncobotulinumtoxinA (Xeomin).
Skin Care Center
Los Angeles, California, United States
Coleman William
Meatrie, Louisiana, United States
SkinCare Physicians of Chestnut Hill
Chestnut Hill, Massachusetts, United States
Flynn Consulting PLLC
Raleigh, North Carolina, United States
Composite Endpoint Treatment Success (CETS) Constituted by 2 Variables: 2-point Responders at Maximum Frown (Frown as Much as Possible) at Day 30 by Investigator's Rating on Facial Wrinkle Scale (FWS) and by Patient's Assessment on 4-point Scale
Composite endpoint CETS constituted by two efficacy variables: 1. The investigator's assessment on the four-point FWS: none = 0, mild = 1, moderate = 2, severe = 3. 2. Patient's assessment on the 4-point scale in comparison to sample photos: 0 = No muscle action at all; 1 = Some even slight muscle action possible i.e. visible furrows; 2 = Moderately strong muscle action possible i.e. visible muscle bulges; 3 = Strong muscle action possible which may cause local pallor. A subject was a responder only if a 2-point improvement compared to baseline occurred simultaneously for both variables.
Time frame: Baseline to Day 30
Responders at Rest at Day 30 by Investigator's Rating on FWS.
The investigator's assessment at rest (no muscle action in the face, no frown at all) on the four-point FWS: none = 0, mild = 1, moderate = 2, severe = 3. A responder was defined as a subject with a rating of none = 0 or mild = 1.
Time frame: Baseline to Day 30
1-point Responders at Rest at Day 30 by Patient's Assessment on 4-point Scale.
Patient's assessment at rest (no muscle action in the face, no frown at all) on the 4-point scale in comparison to sample photos: 0 = No visible vertical line(s) at all (i.e. no visible upright line); 1 = Slightly visible vertical line(s) (i.e. slightly visible upright line); 2 = Moderate vertical line(s) with depression (i.e. upright line with deepening); 3 = Deep vertical line(s) and depression which cannot be effaced by spreading (i.e. cannot be smoothed out). A subject was a responder if a 1-point improvement occurred compared to baseline.
Time frame: Baseline to Day 30
Responders at Maximum Frown at Day 30 by Investigator's Rating on FWS.
The investigator's assessment at maximum frown (frown as much as possible) on the four-point FWS: none = 0, mild = 1, moderate = 2, severe = 3. A responder was defined as a subject with a rating of none = 0 or mild = 1.
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Tennessee Clinical Research Center
Nashville, Tennessee, United States
Aesthetic Facial Ophtalmology
Vancouver, British Columbia, Canada
Carruthers Clinical Research
Vancouver, British Columbia, Canada
Solish Nowell
Toronto, Ontario, Canada
Time frame: Baseline to Day 30
1-point Responders at Maximum Frown at Day 30 by Patient's Assessment on 4-point Scale.
Patient's assessment at maximum frown (frown as much as possible) on the 4-point scale in comparison to sample photos: 0 = No muscle action at all; 1 = Some even slight muscle action possible i.e. visible furrows; 2 = Moderately strong muscle action possible i.e. visible muscle bulges; 3 = Strong muscle action possible which may cause local pallor. A subject was a responder if a 1-point improvement occurred compared to baseline.
Time frame: Baseline to Day 30