A Study of TAS-303 in Female Patients With Stress Urinary Incontinence

Key Inclusion Criteria: * Patient has symptoms of Stress Urinary Incontinence (SUI) for at least 12 weeks prior to study entry * Patient weights at least 45 kg and has body mass index (BMI) range of 18.0-30.0 kg/m2, inclusive, at screening * Patient is positive in 1-hour pad weight test at screening * Patient has at least 2 incontinence episodes per week. Key Exclusion Criteria: * Patient has predominant or primary urge incontinence according to investigator judgment * Patient had a prior surgical SUI treatment * Patient is diagnosed Pelvic Organ Prolapse * Patient is currently taking medication, or has taken medication in the last 4 weeks, for urinary incontinence or that effect urinary output function including anti-cholinergic or anti-histamines or any anti-anxiety medications. * Patient is positive pregnancy test