Efficacy of pirfenidone for idiopathic pulmonary fibrosis: An Italian real life study
Open accessAbstract
Background In this retrospective Italian study, which involved all major national interstitial lung diseases centers, we evaluated the effect of pirfenidone on disease progression in patients with IPF.Methods We retrospectively studied 128 patients diagnosed with mild, moderate or severe IPF, and the decline in lung function monitored during the one-year treatment with pirfenidone was compared with the decline measured during the one-year pre-treatment period.Results At baseline (first pirfenidone prescription), the mean percentage forced vital capacity (FVC) was 75% (35-143%) of predicted, and the mean percentage diffuse lung capacity (DLCO) was 47% (17-120%) of predicted. Forty-eight patients (37.5%) had mild disease (GAP index stage I), 64 patients (50%) had moderate IPF (stage II), and 8 patients (6.3%) had severe disease (stage III). In the whole population, pirfenidone attenuated the decline in FVC (p = 0.065), but did not influence the decline in DLCO (p = 0.355) in comparison to the pre-treatment period. Stratification of patients into mild and severe disease groups based on %FVC level at baseline (>75% and ≤75%) revealed that attenuation of decline in FVC (p = 0.002) was more pronounced in second group of patients. Stratification of patients according to GAP index at baseline (stage I vs. II/III) also revealed that attenuation of decline in lung function was more pronounced in patients with more severe disease.Conclusions In this national experience, pirfenidone reduced the rate of annual FVC decline (p = 0.065). Since pirfenidone provided significant treatment benefit for patients with moderate-severe disease, our results suggest that the drug may also be effective in patients with more advanced disease.
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Systematic reviews and meta-analyses failed to show any therapeutic benefit of systemic corticosteroids in IPF.
“Systemic corticosteroids have been widely studied in the treatment of IPF with systematic reviews and meta-analyses failing to show any therapeutic benefit [23,52,53].”
From Emerging pharmacological options in the treatment of idiopathic pulmonary fibrosis (IPF) (2024) · cites this paper as [23]
The Discussion (p. 8) says corticosteroids have been demonstrated ineffective in IPF, and the References (p. 9) include a systematic review on corticosteroids. The paper does not say that multiple systematic reviews and meta-analyses reached this conclusion; its own study evaluated pirfenidone, not corticosteroids. (LLM, conf=0.84)
Experimental — accuracy not yet measured
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Cites
Raghu, G., Collard, H. R., Egan, J. J., Martinez, F. J., Behr, J., Brown, K. K., Colby, T. V., Cordier, J.-F., Flaherty, K. R., Lasky, J. A., et al. (2011) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.2009-040gl · Cited by 7,186 · see citing works
Efficacy and Safety of Nintedanib in Idiopathic Pulmonary Fibrosis
Richeldi, L., du Bois, R. M., Raghu, G., Azuma, A., Brown, K. K., Costabel, U., Cottin, V., Flaherty, K. R., Hansell, D. M., Inoue, Y., et al. (2014) · New England Journal of Medicine · doi:10.1056/nejmoa1402584 · Cited by 4,654 · see citing works
A phase 3 trial of pirfenidone in patients with idiopathic pulmonary fibrosis.
King, T. E., Bradford, W. Z., Castro-Bernardini, S., Fagan, E. A., Glaspole, I., Glassberg, M. K., Gorina, E., Hopkins, P. M., Kardatzke, D., Lancaster, L., et al. (2014) · New England Journal of Medicine · doi:10.1056/nejmoa1402582 · Cited by 3,975 · see citing works
King, T. E., Pardo, A., & Selman, M. (2011) · The Lancet · doi:10.1016/s0140-6736(11)60052-4 · Cited by 2,194 · see citing works
Pirfenidone in patients with idiopathic pulmonary fibrosis (CAPACITY): two randomised trials
Noble, P. W., Albera, C., Bradford, W. Z., Costabel, U., Glassberg, M. K., Kardatzke, D., King, T. E., Lancaster, L., Sahn, S. A., Szwarcberg, J., et al. (2011) · The Lancet · doi:10.1016/s0140-6736(11)60405-4 · Cited by 2,154 · see citing works
Self-citationPrednisone, Azathioprine, and N -Acetylcysteine for Pulmonary Fibrosis
The Idiopathic Pulmonary Fibrosis Clinical Research Network (2012) · New England Journal of Medicine · doi:10.1056/nejmoa1113354 · Cited by 1,631 · see citing works
A Multidimensional Index and Staging System for Idiopathic Pulmonary Fibrosis
Ley, B., Ryerson, C. J., Vittinghoff, E., Ryu, J. H., Tomassetti, S., Lee, J. S., Poletti, V., Buccioli, M., Elicker, B. M., Jones, K. D., et al. (2012) · Annals of Internal Medicine · doi:10.7326/0003-4819-156-10-201205150-00004 · Cited by 1,308 · see citing works
Self-citationHigh-Dose Acetylcysteine in Idiopathic Pulmonary Fibrosis
Demedts, M., Behr, J., Buhl, R., Costabel, U., Dekhuijzen, R., Jansen, H. M., MacNee, W., Thomeer, M., Wallaert, B., Laurent, F., et al. (2005) · New England Journal of Medicine · doi:10.1056/nejmoa042976 · Cited by 964 · see citing works
Pirfenidone in idiopathic pulmonary fibrosis
Taniguchi, H., Ebina, M., Kondoh, Y., Ogura, T., Azuma, A., Suga, M., Taguchi, Y., Takahashi, H., Nakata, K., Sato, A., et al. (2009) · European Respiratory Journal · doi:10.1183/09031936.00005209 · Cited by 957 · see citing works
Double-blind, Placebo-controlled Trial of Pirfenidone in Patients with Idiopathic Pulmonary Fibrosis
Azuma, A., Nukiwa, T., Tsuboi, E., Suga, M., Abe, S., Nakata, K., Taguchi, Y., Nagai, S., Itoh, H., Ohi, M., et al. (2005) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.200404-571oc · Cited by 953 · see citing works
Pirfenidone in idiopathic pulmonary fibrosis: Figure 1–
Swigris, J., & Fairclough, D. (2010) · European Respiratory Journal · doi:10.1183/09031936.00071710 · Cited by 802 · see citing works
du Bois, R. M., Weycker, D., Albera, C., Bradford, W. Z., Costabel, U., Kartashov, A., King, T. E., Lancaster, L., Noble, P. W., Sahn, S. A., et al. (2011) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.201105-0840oc · Cited by 527 · see citing works
Self-citationRandomized Trial of Acetylcysteine in Idiopathic Pulmonary Fibrosis
The Idiopathic Pulmonary Fibrosis Clinical Research Network (2014) · New England Journal of Medicine · doi:10.1056/nejmoa1401739 · Cited by 499 · see citing works
Corticosteroids for idiopathic pulmonary fibrosis
Richeldi, L., Davies, H. R. H. R., Spagnolo, P., & Luppi, F. (2003) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd002880 · Cited by 219 · see citing works
Self-citationOltmanns, U., Kahn, N. C., Palmowski, K., et al. (2014) · Respiration · doi:10.1159/000363064 · Cited by 128 · see citing works
Predicting Pulmonary Fibrosis Disease Course From Past Trends in Pulmonary Function
Schmidt, S. L., Tayob, N., Han, M. K., Zappala, C. J., Kervitsky, D. J., Murray, S., Wells, A. U., Brown, K. K., Martínez, F. J., & Flaherty, K. R. (2013) · CHEST Journal · doi:10.1378/chest.13-0844 · Cited by 111 · see citing works
Safety and efficacy of pirfenidone in idiopathic pulmonary fibrosis in clinical practice
Okuda, R., Hagiwara, E., Baba, T., Kitamura, H., Kato, T., & Ogura, T. (2013) · Respiratory Medicine · doi:10.1016/j.rmed.2013.06.011 · Cited by 98 · see citing works
du Bois, R. M., Nathan, S. D., Richeldi, L., Schwarz, M. I., & Noble, P. W. (2012) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.201206-1010pp · Cited by 95 · see citing works
Wells, A. U., Behr, J., Costabel, U., Cottin, V., Poletti, V. E., Richeldi, L., & for the European IPF consensus group (2012) · Thorax · doi:10.1136/thoraxjnl-2012-202580 · Cited by 83 · see citing works
Self-citationReal world experiences: Pirfenidone is well tolerated in patients with idiopathic pulmonary fibrosis
Chaudhuri, N., Duck, A., Frank, R., et al. (2013) · Respiratory Medicine · doi:10.1016/j.rmed.2013.11.005 · Cited by 73 · see citing works
IPF clinical trial design and endpoints
Nathan, S. D., & Meyer, K. C. (2014) · Current Opinion in Pulmonary Medicine · doi:10.1097/mcp.0000000000000091 · Cited by 71 · see citing works
Intraindividual Response to Treatment with Pirfenidone in Idiopathic Pulmonary Fibrosis
Loeh, B., Drakopanagiotakis, F., Bandelli, G. P., von der Beck, D., Tello, S., Cordani, E., Rizza, E., Barrocu, L., Markart, P., Seeger, W., et al. (2014) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/rccm.201406-1106le · Cited by 62 · see citing works
Self-citationHarari, S. A., Giunta, V., Albera, C., et al. (2014) · European Respiratory Journal · doi:10.1183/13993003/erj.44.suppl_58.4626 · Cited by 1 · see citing works
Self-citation
Flagged first, then by citations
Research works printed but not linked: 2
- [2][2] [Azuma A, Nukiwa T, Tsuboi E, Suga M, Abe S, Nakata K, et al. Double-blind, placebo-controlled trial on pirfenidonein patients with idiopathic pulmonary fibrosis. Am J Respir Crit Care Med 2005;171:1040 e 7.](http://refhub.elsevier.com/S0954-6111(15)00121-3/sref2) -
- [17][17] [Wells AU, Behr J, Costabel U, Cottin V, Poletti V, Richeldi L, et al. Morality as primary end-point in IPF treatment trials: the best is the enemy of the good. Thorax 2012;67:938 e 40.](http://refhub.elsevier.com/S0954-6111(15)00121-3/sref17) -
Cited by
Sorted by citations
Rogliani, P., Calzetta, L., Cavalli, F., Matera, M. G., & Cazzola, M. (2016) · Pulmonary Pharmacology & Therapeutics · doi:10.1016/j.pupt.2016.07.009 · Cited by 168 · see citing works
Emerging pharmacological options in the treatment of idiopathic pulmonary fibrosis (IPF)
Aribindi, K., Liu, G. Y., & Albertson, T. E. (2024) · Expert Review of Clinical Pharmacology · doi:10.1080/17512433.2024.2396121 · Cited by 17 · see citing works
- Authors
- Harari, S., Caminati, A., Albera, C., Vancheri, C., Poletti, V., Pesci, A., Luppi, F., Saltini, C., Agostini, C., Bargagli, E., Sebastiani, A., Sanduzzi, A., Giunta, V., Della Porta, R., Bandelli, G. P., Puglisi, S., Tomassetti, S., Biffi, A., Cerri, S., Mari, A., Cinetto, F., Tirelli, F., Farinelli, G., Bocchino, M., Specchia, C., & Confalonieri, M.
- Affiliations
- MultiMedica (IT)
- University of Turin (IT)
- University of Catania (IT)
- Ospedale G.B. Morgagni - L.Pierantoni (IT)
- University of Milano-Bicocca (IT)
- Azienda Ospedaliero-Universitaria di Modena (IT)
- Policlinico Tor Vergata (IT)
- University of Padua (IT)
- University of Siena (IT)
- Azienda Ospedaliera San Camillo-Forlanini (IT)
- Ospedale Monaldi (IT)
- University of Trieste (IT)
- Corresponding author
- Harari, S.
- ORCID
- Venue
- Respiratory Medicine
- Publisher
- Elsevier BV
- Published
- 2015-07
- Volume
- 109
- Issue
- 7
- Pages
- 904-913
- ISSN
- 0954-6111 (ISSN-L)
- OpenAlex
- W2045756883
- Cited by
- 78
- References
- 23
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 2 · 2023: 1 · 2022: 3 · 2021: 5 · 2020: 10 · 2019: 13 · 2018: 13 · 2017: 14 · 2016: 9 · 2015: 4 · 2013: 1
- FWCI
- 10.56
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Respiratory Medicine (publishedVersion)
- PubMed (publishedVersion)
- ArTS Archivio della ricerca di Trieste (University of Trieste https://www.units.it/) (submittedVersion, other-oa)
- Institutional Research Information System University of Turin (University of Turin) (submittedVersion, other-oa)
- Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano) (submittedVersion, other-oa)
- BOA (University of Milano-Bicocca) (submittedVersion, other-oa)
- Institutional Research Information System (Università degli Studi di Brescia) (submittedVersion)
- IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
- Use Siena air (University of Siena) (submittedVersion, other-oa)
- Padua Research Archive (University of Padova) (submittedVersion)
- Topics
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Pulmonary Hypertension Research and Treatments
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Occupational and environmental lung diseases
- Keywords
- pirfenidone, idiopathic pulmonary fibrosis, lung function decline, forced vital capacity, diffusing capacity for carbon monoxide, GAP index, disease severity, real-world effectiveness, antifibrotic therapy
- MeSH terms
- Aged, Anti-Inflammatory Agents, Non-Steroidal, Female, Humans, Italy, Male, Pyridones, Retrospective Studies, Vital Capacity, Incidence, Treatment Outcome, Disease Progression, Idiopathic Pulmonary Fibrosis
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review