• Mark J Hamblin, Robert J Kaner, and Gary M Owens.
• University of Kansas Medical Center, Kansas City, KS. Email: mhamblin@KUMC.edu.
• Am J Manag Care. 2021 May 1; 27 (7 Suppl): S147-S154.

AbstractProgressive fibrosing interstitial lung diseases (ILDs) encompass a wide range of diseases, including hypersensitivity pneumonitis, occupational diseases, granulomatous diseases, drug-induced diseases, and idiopathic pneumonitis. Given the vast number of progressive fibrosing ILDs and the disparities in clinical patterns and disease features, understanding their clinical and economic impact presents significant challenges. Historically, treatment options for progressive fibrosing ILDs include anti-inflammatory drugs and immunosuppressive. The lack of effective options and guideline recommendations, however, has rendered treatment difficult. In March 2020, nintedanib was approved by the FDA for the treatment of patients with chronic fibrosing ILDs with a progressive phenotype, becoming the first therapeutic agent to receive an indication for this set of diseases. The approval was based on data from the phase 3 randomized, double-blind, placebo-controlled, parallel-group INBUILD trial. Questions regarding the cost of medications, their effects on disease and comorbidities, patient selection, and combination strategies remain to be answered.

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