Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive and ultimately fatal disease with a variable clinical course. Biomarkers that predict patient outcomes are needed. We leveraged data from 300 patients in the multicenter IPF-PRO Registry to determine associations between circulating proteins and the composite outcome of respiratory death or lung transplant. Plasma collected at enrollment was analyzed using aptamer-based proteomics (1305 proteins). Over a median follow-up of 30.4 months, there were 76 respiratory deaths and 26 lung transplants. In unadjusted univariable analyses, 61 proteins were significantly associated with the outcome (hazard ratio > 2 or < 0.5, corrected p ≤ 0.05). In multivariable analyses, a set of 4 clinical measures and 47 unique proteins predicted the probability of respiratory death or lung transplant with an optimism-corrected C-index of 0.76. Our results suggest that select circulating proteins strongly associate with the risk of mortality in patients with IPF and confer information independent of clinical measures.
Original language | English (US) |
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Pages (from-to) | 11-18 |
Number of pages | 8 |
Journal | Lung |
Volume | 200 |
Issue number | 1 |
DOIs | |
State | Published - Feb 2022 |
Keywords
- Biomarkers
- Interstitial lung diseases
- Observational study
- Proteomics
ASJC Scopus subject areas
- Pulmonary and Respiratory Medicine