This is a multicenter, prospective, randomized, placebo-controlled, phase II study to determine the safety and efficacy of oral ifetroban compared to placebo in subjects with IPF. Patients who meet the inclusion criteria and none of the exclusion criteria will receive oral ifetroban or placebo once daily for 12 months. Subjects will be randomly assigned to one of two oral treatment groups: ifetroban or placebo and block randomized by background therapy. All subjects who receive treatment will be assessed for safety. All subjects with at least one efficacy assessment post-baseline will be evaluated for efficacy. Blood and urine will be collected for standard and novel PPF biomarkers.
Ifetroban prevents and treats lung fibrosis due to multiple causes (bleomycin, genetic, radiation). The safety and efficacy of oral ifetroban will be assessed in patients with IPF.