Botulinum Toxin Type A (AsiFlyer)

Primary Objective: To evaluate the safety and tolerability of recombinant botulinum toxin type A (Sf9 cells, 150 kD natural amino acid sequence) for the treatment of moderate to severe glabellar lines. Secondary Objective: To evaluate the immunogenicity of recombinant botulinum toxin type A (Sf9 cells, 150 kD natural amino acid sequence) for the treatment of moderate to severe glabellar lines. To conduct a preliminary evaluation of the efficacy of recombinant botulinum toxin type A (Sf9 cells, 150 kD natural amino acid sequence) for the treatment of moderate to severe glabellar lines.