Related Experiment Video
Updated: Sep 10, 2025
07:51
Refined Murine Model of Idiopathic Pulmonary Fibrosis
Published on: June 17, 2025
287
Changes in Lung Function and Patient-Reported Outcomes in Patients with Idiopathic Pulmonary Fibrosis
Jamie L Todd1,2, Megan L Neely3,4, Anne S Hellkamp3,4
1Duke Clinical Research Institute, Durham, NC, USA. jamie.todd@duke.edu.
Lung
|August 27, 2025
Summary
Changes in lung function show weak correlations with patient-reported outcomes in idiopathic pulmonary fibrosis (IPF). Assessing both lung function and health-related quality of life (HRQL) is crucial for IPF clinical trials and practice.
Area of Science:
- Pulmonology
- Clinical Research
- Patient-Reported Outcomes
Background:
- Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease with significant impact on patients' quality of life.
- Understanding the relationship between objective lung function measures and subjective patient experiences is vital for comprehensive disease management.
Purpose of the Study:
- To evaluate the correlations between changes in lung function parameters and patient-reported outcomes (PROs) over 12 months in IPF patients.
- To determine if changes in specific PROs predict declines in lung function in IPF.
Main Methods:
- Analysis of data from 736 patients with IPF in the IPF-PRO Registry.
- Assessment of changes in forced vital capacity (FVC) and diffusing capacity of the lungs for carbon monoxide (DLco).
- Evaluation of changes in St George's Respiratory Questionnaire (SGRQ) and 12-item Short Form Survey (SF-12) physical component summary (PCS) scores.
Main Results:
- Weak correlations were found between changes in lung function (FVC, DLco) and changes in SGRQ and SF-12 PCS scores over 12 months.
- Patients with a deterioration of ≥5 units in SGRQ activity or SF-12 PCS scores showed numerically larger lung function declines, but the differences were small.
- The observed relationships between lung function changes and PROs were not strong.
Conclusions:
- The weak associations highlight the need to consider both lung function and health-related quality of life (HRQL) measures independently.
- Comprehensive evaluation of both objective lung function and subjective PROs is essential in IPF clinical practice and trials.
- Future research should explore factors influencing the discordance between lung function and HRQL in IPF.
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