Overview Effects Of Sitaxsentan On Proteinuria, 24-Hour Blood Pressure, And Arterial Stiffness In Chronic Kidney Disease Subjects Status: Completed Trial end date: 2009-03-01 Target enrollment: Participant gender: Summary This study is being conducted to evaluate sitaxsentan dosing in subjects with chronic kidney disease. Phase: Phase 2 Details Lead Sponsor: PfizerTreatments: NifedipineSitaxsentan