Evidence map›Paper›PMID 26308723›Full record

SynthesisPloS one2015

Pirfenidone for Idiopathic Pulmonary Fibrosis: A Systematic Review and Meta-Analysis.

Carlos Aravena, Gonzalo Labarca, Carmen Venegas, Alex Arenas, Gabriel Rada

Erratum issuedOpen access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 pooled it
8.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 3 syntheses or guidelines pooled it, 72 citations in OpenAlex.

  1. Pooled it
  2. Health-related quality of life of patients with idiopathic pulmonary fibrosis: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2020
    Pooled it
  3. Pooled it
  4. Trial
  5. p38γ and p38δ MAP kinases in inflammation.Biochemical Society transactions · 2026
    Review
  6. Review
  7. Review
  8. Article
  9. Pirfenidone Mitigates Transforming Growth Factor-β-induced Inflammation after Viral Infection.American journal of respiratory cell and molecular biology · 2025
    Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Observational
  17. Terrestrosin D fromPharmaceutical biology · 2019
    Article
  18. Article
  19. Acute exacerbations of progressive-fibrosing interstitial lung diseases.European respiratory review : an official journal of the European Respiratory Society · 2018
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Carlos AravenaDepartment of Respiratory diseases, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Gonzalo LabarcaDepartment of Internal Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; Evidence Based Health Care Program, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Carmen VenegasDepartment of Respiratory diseases, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Alex ArenasDepartment of Internal Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Gabriel RadaDepartment of Internal Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; Evidence Based Health Care Program, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; Epistemonikos foundation, Santiago, Chile.
Pontificia Universidad Católica de Chile · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelledIdiopathic pulmonary fibrosis (IPF) is a progressive disease with poor prognosis. In the last decades pirfenidone an anti-inflammatory and anti-fibrotic agent has shown benefit in inhibit collagen production and has also demonstrated benefit in decline progression in IPF in physiological outcomes as Forced vital capacity (FVC), in clinical outcomes such as progression free survival (PFS) and a benefit in mortality but no in clinically relevant outcomes as exacerbations or worsening of IPF.

methodsWe conducted a systematic review to evaluate the effectiveness of physiological and clinical outcomes of pirfenidone compared to placebo in IPF. We performed a search with no language restriction. Two researchers performed literature search, quality assessment, data extraction and analysis. And was performed a summary of findings table following the GRADE approach.

resultsWe included 5 RCTs (Randomized controlled trials) in analysis. The meta-analysis resulted in a decrease in all cause-mortality (RR 0.52 IC 0.32-0.88) and IPF related mortality (RR 0.32 IC 0.14-0.75); other outcomes evaluated were worsening of IPF (RR 0.64 IC 0.50-0.83) and acute exacerbation (RR: 0.72 IC 0.30-1.66 respectively). Also there was a decrease in the risk of progression (RR of PFS: 0.82 IC 0.73–0.92) compared to placebo. Conclusions: We observed significant differences in physiologic and clinically relevant outcomes such as reduction in all-cause mortality, IPF related mortality, worsening of IPF and improvement of PFS. So pirfenidone treatment should be considered not only for its benefits in pulmonary function tests but also by its clinically relevant outcomes [corrected].

Indexed as

Anti-Inflammatory Agents, Non-SteroidalHumansIdiopathic Pulmonary FibrosisPyridonesAnti-Inflammatory Agents, Non-SteroidalpirfenidonePyridones

Identifiers

PMID26308723
PMCPMC4550327
OpenAlexW1943724554

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.