Conditions: Erectile Dysfunction
Keywords: Erectile Dysfunction
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 770
Healthy volunteers: no

Brief summary:
The purpose of this study is to investigate if treatment in erectile dysfunction with a long-acting drug (Tadalafil) taken once a day or taken as needed results in a longer treatment adherence and better long term outcomes (over 24 weeks), compared with a short-acting drug (Sildenafil Citrate) taken as needed.

Detailed description:

Arms:
arm 1: 10 milligrams (mg) or 20 mg on demand arm 2: 5 mg or 2.5 mg once a day arm 3: 50 mg, 100 mg, or 25 mg on demand

Interventions: intervention 1: Tadalafil intervention 2: Sildenafil Citrate
Intervention descriptions: intervention 1: Administered orally for 24 weeks. intervention 2: Administered orally for 24 weeks.

Protocol document: