142
Participants
Start Date
December 31, 2005
Primary Completion Date
June 30, 2009
Study Completion Date
June 30, 2009
L-arginine
Oral L-arginine (3.2 gr bid)for 18 months
Placebo
Oral Placebo BID for 18 months
Scientific Institute San Raffaele, Milan
IRCCS San Raffaele
OTHER