Efficacy and safety of avanafil as compared with sildenafil in the treatment of erectile dysfunction: A randomized, double blind, multicenter clinical trial
Abstract
Objective: To compare the efficacy and safety of avanafil as compared with sildenafil in the management of patients with erectile dysfunction.
Methods: It was a prospective, randomized, double-blind, two-arm, active-controlled, parallel, multicenter, non-inferiority clinical study carried out in patients with erectile dysfunction for at least 3 months and International Index of Erectile Function - Erectile Function domain score of <26 at enrolment.
Results: A total of 220 patients were randomized to receive either avanafil tablets 100 mg or sildenafil tablets 50 mg in 1:1 ratio. After 4 weeks of treatment, 40.0% of patients in the avanafil group and 45.6% of patients in the sildenafil group required dose escalation to a high dose (avanafil 200 mg/sildenafil 100 mg). The difference in the mean change of International Index of Erectile Function - Erectile Function score from baseline in the two groups increased from week 4 (1.1, 95% confidence interval -0.2 to 2.5) to week 8 (1.4, 95% confidence interval 0.1-2.7) and week 12 (2.1, 95% confidence interval 0.8-3.5), showing non-inferiority at week 4, and superiority at week 8 and week 12. Avanafil showed a faster onset of action as shown by a significantly better response to modified Sexual Encounter Profile 1 in the avanafil group (84.8%) as compared with that in the sildenafil group (28.2%; P < 0.001). Both avanafil and sildenafil were well tolerated by all the patients in the study; the most common adverse event reported…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 220 participants or records.
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