PMID- 33822701 OWN - NLM STAT- MEDLINE DCOM- 20220331 LR - 20220401 IS - 0392-856X (Print) IS - 0392-856X (Linking) VI - 40 IP - 3 DP - 2022 Mar TI - The role of pirfenidone in the treatment of interstitial pneumonia with autoimmune features. PG - 560-567 LID - 10.55563/clinexprheumatol/off5n7 [doi] AB - OBJECTIVES: No approved pharmacotherapies are available for patients with interstitial pneumonia with autoimmune features (IPAF). In the present work, we aimed to evaluate the efficacy and safety of pirfenidone for the treatment of IPAF. METHODS: A retrospective cohort study consisting of patients who met diagnostic criteria for IPAF was performed after a multidisciplinary review, and the patients receiving pirfenidone were compared with those in the non-pirfenidone group. The baseline data and diagnostic characteristics of patients were assessed. Pulmonary function and prednisone dose were analysed by a mix-effects model. RESULTS: A total of 184 patients, who met the diagnostic criteria of IPAF, were divided into two groups: pirfenidone group (n=81) and non-pirfenidone group (n=103). Patients in the pirfenidone group had a lower forced vital capacity (FVC%, p<0.001) and a lower diffusion capacity for carbon monoxide (DLCO%, p=0.003). The pirfenidone group exhibited a greater increase of FVC% at 6 (p=0.003), 12 (p=0.013), and 24 (p=0.003) months. After adjustment for sex, age, UIP pattern, baseline FVC% and DLCO%, patients in the pirfenidone group continued to show a greater improvement in FVC% (chi2(1)=4.59, p=0.032). Subgroup analysis identified superior therapeutic effects of pirfenidone in patients with dosage >600 mg/day (p=0.010) and medication course >12 months (p=0.007). Besides, the pirfenidone group had a lower prednisone dose than the non-pirfenidone group after 12 months of treatment (p=0.002). Moreover, 17 patients (19.32%) experienced side effects after taking pirfenidone, including one case of anaphylactic shock. CONCLUSIONS: Pirfenidone (600-1,800 mg/day) might help improve FVC, with an acceptable safety and tolerability profile in IPAF patients. FAU - Chen, Tao AU - Chen T AD - Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Li, Qiu-Hong AU - Li QH AD - Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Zhang, Yuan AU - Zhang Y AD - Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Yin, Cheng-Sheng AU - Yin CS AD - Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Weng, Dong AU - Weng D AD - Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Zhou, Ying AU - Zhou Y AD - Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Hu, Yang AU - Hu Y AD - Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Shi, Jing-Yun AU - Shi JY AD - Department of Radiology, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Chen, Ya-Nan AU - Chen YN AD - Department of Radiology, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Ye, Shuang AU - Ye S AD - Department of Rheumatology, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China. FAU - Wang, Xiao-Dong AU - Wang XD AD - Department of Rheumatology, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China. FAU - Wu, Chun-Yan AU - Wu CY AD - Department of Pathology, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Huang, Yan AU - Huang Y AD - Department of Pathology, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. FAU - Zhang, Ai-Hong AU - Zhang AH AD - Department of Medical Statistics, Tongji University, School of Medicine, Shanghai, China. FAU - Li, Hui-Ping AU - Li HP AD - Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University, School of Medicine, Shanghai, China. liw2013@126.com. LA - eng PT - Journal Article DEP - 20210330 PL - Italy TA - Clin Exp Rheumatol JT - Clinical and experimental rheumatology JID - 8308521 RN - 0 (Pyridones) RN - D7NLD2JX7U (pirfenidone) SB - IM MH - Humans MH - *Idiopathic Pulmonary Fibrosis/drug therapy MH - *Lung Diseases, Interstitial/diagnosis MH - Pyridones/adverse effects MH - Retrospective Studies MH - Vital Capacity EDAT- 2021/04/07 06:00 MHDA- 2022/04/01 06:00 CRDT- 2021/04/06 17:16 PHST- 2021/01/31 00:00 [received] PHST- 2021/03/15 00:00 [accepted] PHST- 2021/04/07 06:00 [pubmed] PHST- 2022/04/01 06:00 [medline] PHST- 2021/04/06 17:16 [entrez] AID - 17028 [pii] AID - 10.55563/clinexprheumatol/off5n7 [doi] PST - ppublish SO - Clin Exp Rheumatol. 2022 Mar;40(3):560-567. doi: 10.55563/clinexprheumatol/off5n7. Epub 2021 Mar 30.