Efficacy and Safety of Avanafil in Chinese Subjects With Erectile Dysfunction: A Multi-Center, Randomized, Double-Blinded, Placebo-Controlled Phase III Clinical Trial.

[16] Subjects aged <40 years showed a similar improvement in the IIEF-EF domain scores from baseline until the 12th week of avanafil therapy but due to the high improvement scores in the placebo group, changes did not reach statistical significance.

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