A 2-Year Observational Study in Patients Suffering from Idiopathic Pulmonary Fibrosis and Treated with Pirfenidone A French Ancillary Study of PASSPORT

Abstract : Background - The European observational, prospective PASSPORT study evaluated the long-term safety of pirfenidone under real-world conditions in idiopathic pulmonary fibrosis (IPF), over up to 2 years following its initiation. Objectives - The FAS (French Ancillary Study) assessed the clinical outcomes of IPF patients participating in PASSPORT (n = 192). Methods - Efficacy data were collected retrospectively and prospectively. The primary efficacy endpoints were: change in percent predicted forced vital capacity (FVC) and change in the distance travelled during the 6-min walk test (6MWD). Results - The mean baseline FVC was 71.7% of predicted value. The mean absolute change in the percentage of predicted FVC was -2.4% and -3.8% at months 12 and 24. The mean change in 6MWD was 8.6 and 3.1 m at months 12 and 24, with a range of 23.4-51.7 m. Acute IPF exacerbation and pulmonary hypertension occurred in 20.0 and 8.4% of patients, respectively. The most common reasons for prematurely discontinuing PASSPORT were adverse drug reactions (ADRs) related to pirfenidone (31.3%), death (11.5%), and disease progression (10.9%). The median progression-free survival was 18.4 months (95% CI 12.9, not estimable). The median exposure was 16.3 months (0.5-28.5). The most frequently reported ADRs leading to pirfenidone discontinuation were decreased weight (4.2%), rash (4.2%), and photosensitivity reactions (3.1%). Conclusions - The efficacy data of FAS are consistent with the efficacy results of published phase III clinical trials in IPF. Approximately one third of IPF patients treated with pirfenidone in real-life settings were still under treatment 2 years after initiation. Safety data are consistent with the known safety profile of pirfenidone.
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Submitted on : Tuesday, July 16, 2019 - 3:35:39 PM
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Stéphane Jouneau, Anne-Sophie Gamez, Julie Traclet, Hilario Nunes, Sylvain Marchand-Adam, et al.. A 2-Year Observational Study in Patients Suffering from Idiopathic Pulmonary Fibrosis and Treated with Pirfenidone A French Ancillary Study of PASSPORT. Respiration, Karger, 2019, 98 (1), pp.19-28. ⟨10.1159/000496735⟩. ⟨hal-02119176⟩

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