RecruitingPhase 2Drug trialSildenafil for Early Pulmonary Vascular Disease in SclerodermaThis is a Phase II randomized, double-blind, placebo-controlled trial of sildenafil in men and women with Scleroderma with mildly elevated pulmonary pressures (SSc-MEP) to determine whether sildenafil may be an effective treatment for SSc-MEP.