['overactive bladder']
['thvd-201', 'placebo(for thvd-201)', 'detrusitol 2mg tablet', 'placebo(for detrusitol 2mg tablet)']

        Inclusion Criteria:

          -  20 - 85 years

          -  History of OAB (pure urge or mixed urinary incontinence with predominant urge
             incontinence) for ≥ 6 months.

          -  In the case of females, at least 2 years has passed since menopause. Or all
             pre-menopausal female subjects must have been using a highly effective method of birth
             control during the study. Subject of childbearing potential must have had a negative
             pregnancy test prior to enrollment.

        Exclusion Criteria:

          -  Predominate stress incontinence, insensate incontinence (those incapable of
             distinguishing discrete incontinence episodes) and overflow incontinence, as major
             reason for urine loss or urinary frequency as determined by the investigator.

          -  History of neurogenic bladder.

          -  PVR > 200mL

          -  History of clinically significant renal disease or estimated creatinine clearance
             defined by Cockcroft and Gault formula < 30 mL/min.

          -  History of malignant tumor within the past 5 years.

          -  History or presence of tachyarrhythmia or cardiac disease that in the opinion of the
             investigator might have confounded the results of the study or posed additional risk
             to the subject. Subjects who had a value for QTc > 450 msec at the Screening visit.

          -  Patient with asthma

          -  PSA ≥ 10 ng/mL in male who is 50 years and over.
      