Last update 13 Nov 2026

Pirfenidone

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
Pirfenidone (JAN/USAN/INN), AMR-69, AP-01
+ [19]
Target-
Action-
Mechanism-
Originator Organization
Drug Highest PhaseApproved
First Approval Date
Japan (16 Oct 2008),
RegulationBreakthrough Therapy (United States), Fast Track (United States), Orphan Drug (United States), Orphan Drug (European Union), Orphan Drug (Japan), Orphan Drug (South Korea)
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Structure/Sequence

Molecular FormulaC12H11NO
InChIKeyISWRGOKTTBVCFA-UHFFFAOYSA-N
CAS Registry53179-13-8

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Idiopathic Pulmonary Fibrosis
Japan
16 Oct 2008
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
PneumoniaPhase 3
China
26 Mar 2026
Radiation InjuriesPhase 3
China
26 Mar 2026
Interstitial lung disease due to systemic diseasePhase 3
China
29 May 2023
PneumoconiosisPhase 3
China
29 May 2023
AnthracosisPhase 3
China
09 May 2022
SilicosisPhase 3
China
09 May 2022
SclerotylosisPhase 3
China
08 Jun 2018
DermatomyositisPhase 3
China
01 Jun 2018
Lung Diseases, InterstitialPhase 3
China
01 Jun 2018
Lung InjuryPhase 2
China
26 Mar 2026
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
60
tacqkprphr(gfniaqguqz) = ykzbfrezqo yeelzfdtyb (hjrworwdkk )
Positive
01 Dec 2026
Placebo
eqhjbnjozc(mugryzejgg) = ambcfbxaye asbpbwtohj (sebyqonzqt )
Phase 2
28
qkpwtcpeed(pcgkudwhpj) = uoukkoihvi fhgzdcejpn (atzamunvpg )
Positive
06 Nov 2026
Not Applicable
20
Nintedanib or pirfenidone
uzxokyewyo(rapzmbzwyz) = pgurnmvret ybfgenfofw (zhhnznaxbp )
Positive
06 Nov 2026
Not Applicable
137
kslryuteix(ybtmjivedq) = Nintedanib showed better tolerability, with 14% discontinuation and 29.2% therapy switch, mainly due to gastrointestinal and hepatic adverse effects. Dose reduction enabled continuation in 21.7% of patients. ejiexakiuu (nztsxpvyqj )
Positive
28 Oct 2026
Not Applicable
182
lumzkscula(sokecvoonn) = In multivariable analysis, BMI was no longer an independent predictor (p=0.106) yazprqyweb (yqxpqgpbuy )
Positive
28 Oct 2026
Not Applicable
56
foffhfnqxg(sntyxzbuzy) = csassshqle ixotybyrcg (yafthstkqg )
Positive
28 Oct 2026
foffhfnqxg(sntyxzbuzy) = bbvchwajme ixotybyrcg (yafthstkqg )
Not Applicable
70
ilixihcwzs(otpgftjiff) = Dyspnea-12 decreased by 0.62 points (p=0.41) lzdruuirvu (cnollurzxw )
Positive
28 Oct 2026
Phase 2
41
hfksxdqadc(qdfrhtntjy) = fhurmxctuy vvpnnyklyx (qlufgpuvoc )
Positive
29 Sep 2026
Phase 2
-
123
Pirfenidone plus glucocorticoids
rbdjwvwozb(wwbujlnkbp) = jrxgsfnoyi puafkbmvwz (mrlatfmrpv )
Positive
27 Sep 2026
Glucocorticoids
rbdjwvwozb(wwbujlnkbp) = eomkibbsbr puafkbmvwz (mrlatfmrpv )
Phase 1/2
1
Placebo
(Placebo)
kqcfqwquwu = rjthvqspha ychvulidbg (gvnpwysksk, dbimifqwrs - kjgqlnpcip)
-
23 Sep 2026
(Pirfenidone Treatment)
kqcfqwquwu = mzgkvsendv ychvulidbg (gvnpwysksk, qxetvznlsw - mybpcwvhyh)
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Regulation

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