ORIGINAL RESEARCH-ED PHARMACOTHERAPY: Efficacy and Safety of Tadalafil Across Ethnic Groups and Various Risk Factors in Men with Erectile Dysfunction: Use of a Novel Noninferiority Study Design

Tadalafil 20 mg was as efficacious in the Hispanic and black American groups as in the Caucasian/Reference group. Tadalafil was efficacious and well tolerated in each of the groups studied in this trial. Morgentaler A, Barada J, Niederberger C, Donatucci C, Garcia CS, Natanegara F, Ahuja S, and Wong DG. Efficacy and safety of tadalafil across ethnic groups and various risk factors in men with erectile dysfunction: Use of a novel noninferiority study design. J Sex Med 2006;3:492-503.