Synopsis: Use of bosentan in patients with idiopathic pulmonary fibrosis demonstrated no improvement in exercise tolerance; however, there was a suggestion of delayed time to death or disease progression.
Source: King TE, Behr J, Brown KK, et al. BUILD-1: A randomized placebo-controlled trial of bosentan in idiopathic pulmonary fibrosis. Am J Respir Crit Care Med. 2008;177:75-81.