Impotence Clinical Trial
Official title:
A Randomized, Double-Blind, Placebo-Controlled Study of the Efficacy and Safety of Tadalafil Administered "On Demand" to Patients With Erectile Dysfunction
Study to determine how safe and effective tadalafil is for Japanese men taking it when they need to get and keep an erection.
n/a
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment
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