Et randomiseret, dobbelt- blindt, multi- center, placebo- kontrolleret fase III forsøg (studie RRA02997) er foretaget med 203 voksne patienter (inhaleret iloprost:
8 A randomised, double-blind, multi-centre, placebo-controlled phase III trial (study RRA02997) has been conducted in 203 adult patients (inhaled iloprost: