20
Participants
Start Date
January 31, 2015
Primary Completion Date
June 30, 2015
Study Completion Date
September 30, 2015
Tadalafil
Patients will take tadalafil 2.5 mg tablet every morning for 8 weeks and then withdraw tadalafil for 8 weeks
Placebo
Patients will take placebo tablet every morning for 8 weeks and then withdraw placebo for 8 weeks
University of Roma La Sapienza
OTHER