A Phase 3, Randomized, Double-Blind, Placebo-Controlled, Parallel-Design Study to Evaluate the Efficacy and Safety of Tadalafil Once-a-day Dosing for 12 weeks in Asian Men with Signs and Symptoms of Benign Prostatic Hyperplasia

INTERVENTION: Intervention name : Tadalafil Dosage And administration of the intervention : Tadalafil 5mg or Placebo taken orally once‐a‐day CONDITION: Signs and Symptoms of Benign Prostatic Hyperplasia INCLUSION CRITERIA: The study population consists of men >_45 years of age who have BPH‐LUTS for >6 months at Visit 1. Subjects are not to have taken finasteride for at least 3 months, dutasteride for at least 6 months, or any BPH, OAB, or ED therapy for at least 4 weeks prior to Visit 2. Subjects need to have a total IPSS of>_13.