Sildenafil citrate (Viagra) in erectile dysfunction: Near normalization inmen with broad-spectrum erectile dysfunction compared with age-matched healthy control subjects

Objectives. To evaluate the efficacy, safety, and tolerability of sildenafi l in men with broad-spectrum erectile dysfunction (ED), with reference to a ge-matched healthy control subjects. Methods. One hundred eleven patients were enrolled in a randomized, double- blind, placebo-controlled, parallel-group, 12-week, flexible-dose study. Ef ficacy assessments included the International Index of Erectile Function (I IEF), a global assessment question, and patient event log data. In a separa te, nontreatment study, 109 control subjects also completed the IIEF. Results, Mean IIEF scores at baseline were significantly lower for patients with ED than for control subjects without a history of ED. After treatment , mean IIEF scores for patients receiving sildenafil approached values obse rved in control subjects and were significantly higher than mean scores for patients receiving placebo (P < 0.01). Responses to the global assessment question and patient log data corroborated the IIEF results. Sildenafil was well tolerated, with no discontinuations because of adverse events. Conclusions. The results indicate that sildenafil, an effective oral therap y for the treatment of broad-spectrum ED, is associated with a near normali zation of patient erectile function. (C) 1999, Elsevier Science Inc. All ri ghts reserved.