540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

p-values are obtained from ANCOVA model with baseline PSAE score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

p-values are obtained from ANCOVA model with baseline PSAE score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

p-values are obtained from ANCOVA model with baseline PSAE score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

p-values are obtained from ANOVA model with pooled site as a covariate.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

p-values are obtained from ANOVA model with pooled site as a covariate.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

p-values are obtained from ANOVA model with pooled site as a covariate.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values were obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with Baseline domain score and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled sites as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.

540 subjects were randomized with 1:1:1:1 randomization scheme to achieve approximately 135 eligible subjects randomized to each of the 4 treatment groups (WC3043 50 mg, 100 mg, 150 mg, and placebo). 135 subjects for each group vs. Placebo will provide at least 90% power with effect size from 0.41-0.44, 0.74-0.90 and 0.46-0.95 on 50 mg, 100 mg and 150 mg groups, respectively. Adjusted power is at least 90% using Bonferroni adjustment on hierarchical testing procedure.

P-values are obtained from ANCOVA model with proportion of "yes" responses during the baseline period and pooled site as covariates.