Dysport in the Treatment of Glabellar Lines in Chinese Subjects
Condition: Glabellar Lines
Intervention: Botulinum toxin type A; Botulinum toxin type A; Placebo; Placebo
Intervention description: 50 Units; 20 Units
Intervention MeSH terms: Botulinum Toxins; Botulinum Toxins, Type A; abobotulinumtoxinA
Phase: Phase 3
Study type: Interventional
Primary purpose: Treatment
Allocation: Randomized
Intervention model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Enrollment: 520.0
Sex: All
Minimum age: 18 Years
Maximum age: 65 Years
Healthy volunteers: No

Summary:

      The objective of this study is to demonstrate the efficacy of Dysport for the improvement in
      appearance of moderate to severe glabellar lines and to assess the short term and long term
      safety of Dysport, used for the improvement in appearance of moderate to severe glabellar
      lines in Chinese subjects.
    

Eligibility criteria:

        Inclusion Criteria:

          -  Provision of written informed consent

          -  Male or female Chinese subjects who are between 18 to 65 years of age inclusive.

          -  Have moderate or severe wrinkles of vertical glabellar lines (Grade 2 or 3) at maximum
             frown at baseline (Day 1), as assessed by the subject using SSA.

          -  Have moderate or severe (Grade 2 or 3) vertical glabellar lines at maximum frown at
             baseline (Day 1), as assessed by the Investigator using ILA.

          -  Be Botulinum Toxin (BTX) naïve or have received their most recent BTX-A treatment more
             than 1 year prior to screening.

          -  Have a negative pregnancy test

          -  Have an understanding of the study

        Exclusion Criteria:

          -  Any prior surgery affecting corrugator supercilii, prior blepharoplasty or brow lift,
             dermal resurfacing, or any prior cosmetic procedures or scars within 36 months.

          -  Any prior treatment with permanent fillers in the upper face.

          -  Any prior treatment with nonpermanent dermal fillers in the upper face within the past
             3 years and/or skin abrasions/resurfacing, photorejuvenation or skin/vascular laser
             intervention within the past 12 months.

          -  Any planned facial cosmetic surgery or procedures during the study period.

          -  Lack of capacity to frown.

          -  Facial conditions that could affect safety or efficacy results.

          -  History of facial nerve palsy.

          -  Marked asymmetry; ptosis; excessive dermatochalasis; deep dermal scarring; thick
             sebaceous skin; photodamage etc.

          -  Presence of any condition that could affect the safety, conduct or outcome of the
             study.

          -  Any subjects who have any psychiatric illness or are taking antidepressant, anxiolytic
             or antipsychotic medication.

          -  Pregnant and/or lactating female subjects.

          -  Female subjects of childbearing potential not willing to use contraceptive measures
             throughout the course of the study.

          -  History of drug or alcohol abuse.

          -  Treatment with an experimental drug or device within 30 days prior to screening for
             this study and during the conduct of this study.

          -  Requirement for BTX injection to site(s) for disorders other than glabellar lines.

          -  Known allergy or hypersensitivity to BTX.

          -  Any medical condition or laboratory finding from central laboratory results.

          -  The subject is unable and/or unwilling to comply fully with the protocol and the
             study.

          -  Mental incapacity, unwillingness or language barriers.