Evidence map›Paper›PMID 26647432›Full record

SynthesisThe European respiratory journal2016

Pirfenidone for idiopathic pulmonary fibrosis: analysis of pooled data from three multinational phase 3 trials.

Paul W Noble, Carlo Albera, Williamson Z Bradford, Ulrich Costabel, Roland M du Bois, Elizabeth A Fagan, Robert S Fishman, Ian Glaspole, Marilyn K Glassberg, Lisa Lancaster and 7 more

Open access · hybridAbstract readMeta-Analysis
In one paragraph

Synthesis in The European respiratory journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 216 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
216citing papers in PubMed, 2 pooled it
30.6field-weighted citation impact, top 1% 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

216 citing papers in PubMed, 2 syntheses or guidelines pooled it, 454 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Dual αAmerican journal of respiratory and critical care medicine · 2025
    Trial
  5. Zinpentraxin Alfa for Idiopathic Pulmonary Fibrosis: The Randomized Phase III STARSCAPE Trial.American journal of respiratory and critical care medicine · 2024
    Trial
  6. Trial
  7. Trial
  8. Trial
  9. Trial
  10. Trial
  11. Trial
  12. Trial
  13. Trial
  14. Trial
  15. Predicting Life Expectancy for Pirfenidone in Idiopathic Pulmonary Fibrosis.Journal of managed care & specialty pharmacy · 2017
    Trial
  16. Article
  17. Observational
  18. Article
  19. Kynurenine-AhR-SLC39A10-ZnCell communication and signaling : CCS · 2026
    Article
  20. Review

156 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 13 institutions in 7 countries.

Paul W NobleCedars-Sinai Medical Center, Los Angeles, CA, USA Paul.Noble@cshs.org.
Carlo AlberaUniversity of Turin, Turin, Italy.
Williamson Z BradfordInterMune Inc., Brisbane, CA, USA.
Ulrich CostabelRuhrlandklinik, University of Duisburg-Essen, Essen, Germany.
Roland M du BoisImperial College, London, UK.
Elizabeth A FaganInterMune Inc., Brisbane, CA, USA.
Robert S FishmanInterMune Inc., Brisbane, CA, USA.
Ian GlaspoleAlfred Hospital and Monash University, Melbourne, Australia.
Marilyn K GlassbergUniversity of Miami Miller School of Medicine, Miami, FL, USA.
Lisa LancasterVanderbilt University Medical Center, Nashville, TN, USA.
David J LedererColumbia University Medical Center, New York, NY, USA.
Jonathan A LeffInterMune Inc., Brisbane, CA, USA.
Steven D NathanInova Fairfax Hospital, Falls Church, VA, USA.
Carlos A PereiraPaulista School of Medicine, Federal University of São Paulo, São Paulo, Brazil.
Jeffrey J SwigrisNational Jewish Health, Denver, CO, USA.
Dominique ValeyreAssistance Publique-Hôpitaux de Paris, Avicenne University Hospital, Bobigny, France.
Talmadge E KingUniversity of California, San Francisco, San Francisco, CA, USA.
Assistance Publique – Hôpitaux de Paris · FRCedars-Sinai Medical Center · USColumbia University Irving Medical Center · USImperial College London · GBInova Fairfax Hospital · USMonash University · AUNational Jewish Health · USUniversidade Federal de São Paulo · BRUniversity of California, San Francisco · USUniversity of Duisburg-Essen · DEUniversity of Miami · USUniversity of Turin · ITVanderbilt University Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pirfenidone is an antifibrotic agent that has been evaluated in three multinational phase 3 trials in patients with idiopathic pulmonary fibrosis (IPF). We analysed pooled data from the multinational trials to obtain the most precise estimates of the magnitude of treatment effect on measures of disease progression.All patients randomised to pirfenidone 2403 mg·day(-1) or placebo in the CAPACITY or ASCEND studies were included in the analysis. Pooled analyses of outcomes at 1 year were based on the pre-specified end-points and analytic methods described in the ASCEND study protocol.A total of 1247 patients were included in the analysis. At 1 year, pirfenidone reduced the proportion of patients with a ≥10% decline in per cent predicted forced vital capacity or death by 43.8% (95% CI 29.3-55.4%) and increased the proportion of patients with no decline by 59.3% (95% CI 29.0-96.8%). A treatment benefit was also observed for progression-free survival, 6-min walk distance and dyspnoea. Gastrointestinal and skin-related adverse events were more common in the pirfenidone group, but rarely led to discontinuation.Analysis of data from three phase 3 trials demonstrated that treatment with pirfenidone for 1 year resulted in clinically meaningful reductions in disease progression in patients with IPF.

Indexed as

AdultAgedAged, 80 and overAnti-Inflammatory Agents, Non-SteroidalClinical Trials, Phase III as TopicDisease ProgressionExercise TestFemaleForced Expiratory VolumeHumansIdiopathic Pulmonary FibrosisInternational CooperationMaleMiddle AgedPulmonary Diffusing CapacityPyridonesAnti-Inflammatory Agents, Non-SteroidalpirfenidonePyridones

Identifiers

PMID26647432
PMCPMC4697914
OpenAlexW2208096782

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.