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Evolution of Lung 18FDG Uptake in Patients With Idiopathic Pulmonary Fibrosis and Receiving Pirfenidone

NCT03692481 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2022-10-04

No results posted yet for this study

Summary

Idiopathic pulmonary fibrosis (IPF) is a rare and fatal lung disease characterized by unpredictable changes with variable kinetics of progression. Changes in pulmonary function (FVC, DLCO) assessed at the time of diagnosis, or decline in pulmonary function within 12 months after diagnosis, are the best predictors of survival, but poorly predicted disease activity and evolution. 18FDG positron emission tomography (18FDG PETscan) provides the ability to quantify cell metabolism in vivo and non-invasively using a labeled non-metabolizable substrate. Several parameters can be measured in an automated and reproducible way, such as the mean fixation intensity (SUV mean), the maximum fixation intensity (SUV max), the hyperfixing volume measurement (MLV) or the glycolytic activity measurement tissue or TLG (total lesions glycolysis). Several studies have demonstrated an increase of glycolytic activity in lung fibroblast from IPF patient. In a recent study, the investigators demonstrated a strong correlation between the lung uptake parameters and the lung function tests results (LFTs) and prognostic score GAP. In addition, MLV and TLG were factors prognostic and independently associated with progression-free survival at 12 months. In a preliminary study, the investigators studied the change of these parameters in twelve patients treated with pirfenidone for IPF who performed an 18FDG PETscan before the initiation of treatment and about twelve weeks later. A mean decrease of 30% in TLG value between the two evaluations was observed. These preliminary data suggest that pirfenidone influences lung metabolism in patients with IPF. The investigators aim to conduct a prospective study to confirm and refine the preliminary data.

Conditions

Interventions

RADIATION

18FDG-PET scan

18FDG PET scan will be performed in each patient before initiation of pirfenidone and after 12 weeks of treatment

Sponsors & Collaborators

  • Assistance Publique - Hôpitaux de Paris

    lead OTHER

Principal Investigators

  • Bruno Crestani, MD, PhD · Assistance Publique - Hôpitaux de Paris

Study Design

Allocation
NA
Purpose
OTHER
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-02-04
Primary Completion
2023-02-28
Completion
2024-04-30

Countries

  • France

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03692481 on ClinicalTrials.gov