SILDENAFIL CITRATE clinical trials

VIRTUOSE: Efficiency of sildenafil on the absolute claudication distance of peripheral arterial disease patients with intermittent claudication. A phase III, National, Multicenter, Prospective, Randomized, Double-blind, Placebo-Controlled trial.

This study is testing a medicine called sildenafil to see how much it helps people with leg pain from poor circulation walk longer. It's a major study comparing the medicine to a dummy pill to find out if it's an effective treatment.