Conditions: Erectile Dysfunction
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 635
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate the safety and effectiveness of the study drug, taken once daily, known as tadalafil in Chinese participants with erectile dysfunction (ED). The study will last about up to 25 months for each participant.

Detailed description:

Arms:
arm 1: 2.5 mg tadalafil orally once daily for 3 months (Period 1) and then 5 mg tadalafil orally once daily for 21 months (Period 2). arm 2: 5 mg tadalafil orally once daily for 24 months (Period 1 and Period 2).

Interventions: intervention 1: Tadalafil
Intervention descriptions: intervention 1: Administered orally

Protocol document: