In patients with portopulmonary hypertension (n = 13) included in the 12-week randomized placebo-controlled PATENT-1 trial, riociguat was well tolerated and improved 6-min walking distance (6MWD), World Health Organization functional class (WHO FC), and other efficacy parameters; 6MWD and WHO FC improvements were sustained over two years in the open-label extension, PATENT-2.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5987907PMC
http://dx.doi.org/10.1177/2045894018769305DOI Listing

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