Conditions: Idiopathic Interstitial Pneumonias / Hypertension,Pulmonary
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 147
Healthy volunteers: no

Brief summary:
To evaluate the efficacy and safety of 26-weeks of treatment with riociguat vs. placebo in patients with symptomatic PH (pulmonary hypertension) associated with IIP (idiopathic interstitial pneumonias).

Detailed description:
Number of participants with Adverse Events (AEs) will be reported in Adverse Events section.

Arms:
arm 1: In the main study treatment phase participants received Riociguat titrated to optimal dose within range of 0.5 mg TID (3 times a day) to 2.5 mg TID for 10 weeks followed by maintenance period of 16 weeks. This phase was followed by a long-term extension phase, which included a blinded sham titration phase of 10 weeks followed by an open-label extension phase. During the open-label extension phase participants were to be treated with Riociguat until commercial access in the indication of pulmonary hypertension (PH) associated with idiopathic interstitial pneumonias (IIP) or until an agreed time point is defined with the individual country, local regulatory authority and the Sponsor's global team. arm 2: In the main study treatment phase participants received sham titration within range of 0.5 mg TID to 2.5 mg TID for 10 weeks followed by maintenance period of 16 weeks. This phase was followed by a long-term extension phase, which included a blinded titration phase to optimal dose of Riociguat of 10 weeks followed by an open-label extension phase. During the open-label extension phase participants were to be treated with Riociguat until commercial access in the indication of PH associated with IIP or until an agreed time point is defined with the individual country, local regulatory authority and the Sponsor's global team.

Interventions: intervention 1: Riociguat (Adempas, BAY63-2521) intervention 2: Placebo
Intervention descriptions: intervention 1: Active drug 0.5 mg, 1.0 mg, 1.5 mg, 2.0 mg and 2.5 mg TID/day as per individual dose titration. The starting dose will be 0.5 mg TID, and the dose will be adjusted every two weeks for ten weeks in 0.5 mg increments up to a maximum dose of 2.5 mg TID based on patient's systolic blood pressure and well-being. intervention 2: Inactive dosed at 0.5 mg, 1.0 mg, 1.5 mg, 2.0 mg and 2.5 mg TID/day as per individual dose titration for 26 weeks

Protocol document: