Predictors of Tadalafil Efficacy in Men with Erectile Dysfunction: The SURE Study Comparing Two Dosing Regimens

On‐demand and three‐times‐per‐week dosage regimens of tadalafil 20 mg were equally efficacious in men with erectile dysfunction. Among the possible prognostic factors tested in this study, baseline disease severity scores were the strongest predictors of efficacy endpoint scores. Costa P, Buvat J, Holmes S, Weitckus S, Petto H, Hamidi K, and Varanese L. Predictors of tadalafil efficacy in men with erectile dysfunction: The SURE study comparing two dosing regimens. J Sex Med 2006;3:1050-1058.