Conditions: Erectile Dysfunction
Keywords: Erectile Dysfunction ED Impotence
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 623
Healthy volunteers: no

Brief summary:
The purpose of this trial is to evaluate if treatment with tadalafil once daily will allow men to return to normal erectile function in those who did not have normal erectile function following as-needed (PRN) Phosphodiesterase Type 5 (PDE5) Inhibitor treatment.

Detailed description:

Arms:
arm 1: 2.5 mg for 4 weeks, followed by 5 mg for 8 weeks with option to continue treatment at 5 mg for an additional 4 weeks arm 2: 5.0 mg for 12 weeks with option to continue treatment for additional 4 weeks arm 3: for 12 weeks

Interventions: intervention 1: Tadalafil intervention 2: Placebo
Intervention descriptions: intervention 1: Administer orally intervention 2: Administer orally

Protocol document: