Idiopathic Pulmonary Fibrosis: The Daily PANCE Blueprint

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Idiopathic Pulmonary Fibrosis: The Daily PANCE Blueprint

A 69-year-old man presents with 18 months of progressive exertional dyspnea and a dry cough. He is a former smoker with no occupational exposures, takes no medications, and has no joint pain, rash, or muscle weakness. He has digital clubbing and bibasilar "Velcro-like" inspiratory crackles. High-resolution CT shows subpleural, basilar reticulation with honeycombing and traction bronchiectasis. Pulmonary function testing shows a restrictive pattern with a reduced DLCO. In addition to supplemental oxygen and pulmonary rehabilitation, which of the following is the most appropriate pharmacotherapy?

A. Prednisone
B. Prednisone, azathioprine, and N-acetylcysteine
C. Nintedanib
D. Inhaled fluticasone-salmeterol
E. Methotrexate

Answer and topic summary

The answer is C. Nintedanib

Progressive dyspnea, clubbing, “Velcro” crackles, and a usual interstitial pneumonia (UIP) pattern on CT (basilar, subpleural honeycombing) in an older former smoker with no exposure or connective tissue disease is idiopathic pulmonary fibrosis. IPF is driven by fibrosis, not inflammation, so the drugs that help slow fibrosis: the antifibrotics nintedanib and pirfenidone, and the newer oral PDE4B inhibitor nerandomilast. All slow the decline in FVC; none reverses scarring. Guidelines endorse antifibrotic therapy alongside oxygen, pulmonary rehabilitation, vaccines, and early referral for lung transplant. Steroids and immunosuppressants are a trap: the PANTHER-IPF trial showed that prednisone, azathioprine, and N-acetylcysteine increased death and hospitalization. Inhaled steroid-bronchodilator combinations treat obstructive disease, and methotrexate can itself cause lung toxicity.

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Smarty PANCE Content Blueprint Review:

Covered under ⇒ PANCE Blueprint Pulmonary ⇒ Restrictive Pulmonary Disease ⇒ Idiopathic pulmonary fibrosis

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