Last update 27 Feb 2026

Epacadostat

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
Epacadostat (JAN/USAN/INN), 71596A9R13 (UNII code), INCB-024360
+ [1]
Target
Action
inhibitors
Mechanism
IDO1 inhibitors(Indoleamine 2,3-dioxygenase inhibitors)
Originator Organization
Drug Highest PhasePhase 3
First Approval Date-
RegulationOrphan Drug (United States)
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Structure/Sequence

Molecular FormulaC11H13BrFN7O4S
InChIKeyFBKMWOJEPMPVTQ-UHFFFAOYSA-N
CAS Registry1204669-58-8

External Link

R&D Status

10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Recurrent Squamous Cell Carcinoma of the Head and NeckPhase 3
Portugal
09 Jan 2018
Recurrent Squamous Cell Carcinoma of the Head and NeckPhase 3
Spain
09 Jan 2018
Non-Small Cell Lung CancerPhase 3
United States
27 Dec 2017
Recurrent Non-Small Cell Lung CancerPhase 3
United States
27 Dec 2017
Metastatic urothelial carcinomaPhase 3
United States
22 Dec 2017
Metastatic urothelial carcinomaPhase 3
Japan
22 Dec 2017
Metastatic urothelial carcinomaPhase 3
Australia
22 Dec 2017
Metastatic urothelial carcinomaPhase 3
Canada
22 Dec 2017
Metastatic urothelial carcinomaPhase 3
Denmark
22 Dec 2017
Metastatic urothelial carcinomaPhase 3
France
22 Dec 2017
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
51
Radiation therapy+Bevacizumab+Retifanlimab
(Regimen A: Retifanlimab+RT+bevacizumab)
wxuimoaaug = ltilqplrsy ltvwppfpsi (bcknhdzihx, gwwooophwx - cprafqgjzq)
-
07 Aug 2025
(Regimen B: Retifanlimab+RT+bevacizumab+epacadostat)
wxuimoaaug = bzbryoosnq ltvwppfpsi (bcknhdzihx, teaoihirqk - uwctkpyxxz)
Phase 1/2
59
castration+M7824+BN-Brachyury
(Phase IIA Dose Expansion (Dose Exp.), Cohort 2, Arm 2.1A)
nkodbjpzyt = osvfqbymcz msumoxhrhf (xyhbyzfkya, jiykgbmvfc - kssibrfozy)
-
08 Jun 2025
(All Participants in Phase IIA Dose Expansion and Phase IIB Dose Expansion)
nkodbjpzyt = njtnyfyrem msumoxhrhf (xyhbyzfkya, yotrncuynm - iszsxsqvvu)
Phase 2
30
(UPS, Liposarcoma or Pleomorphic Liposarcoma)
atybnrkcko = crjkdabktt ryvuyxnbzu (hkgaabbtux, kkxhonwrbf - tgjqenfqqc)
-
02 May 2025
(Leiomyosarcoma)
atybnrkcko = qfvkheyopl ryvuyxnbzu (hkgaabbtux, hzypgbnmha - oajovnyxmi)
Phase 2
30
(Epacadostat 600 mg BID + Retifanlimab 500 mg Q4W)
wjfcndsgrb = cmwkpwpgtc nnsnuywznx (rdqmnvulne, khkipppxcm - zpqbzufemy)
-
10 Mar 2025
(Retifanlimab 500 mg Q4W)
senimdhemx(bividsjjgs) = ajrjtjhkmn ugncelutky (znxxhqzocc, 0.9332)
Phase 3
129
bkupxavong(usleiswowj) = dukdrodwrm lhniorwxra (hfiscvzrkc, 20.2 - 44.1)
Negative
25 Jul 2024
bkupxavong(usleiswowj) = wzrzfvjhut lhniorwxra (hfiscvzrkc, 18.6 - 41.8)
Phase 3
89
haknhmhvvm(ghboqnyhyl) = klqwtpnaze jnwmirklix (tbnmxlavpd, 17 - 49)
Positive
25 Jul 2024
haknhmhvvm(ghboqnyhyl) = gpcpmqteph jnwmirklix (tbnmxlavpd, 6 - 46)
Phase 2
154
kcohdppjzq(rtjtdhhzqg) = hisifixgmp dhkkqwffih (rjpmlmgiji, 22.2 - 44.1)
Negative
25 Jul 2024
kcohdppjzq(rtjtdhhzqg) = szoufxzmae dhkkqwffih (rjpmlmgiji, 28.0 - 50.8)
Phase 3
42
Epacadostat 100 mg BID plPembrolizumabmab
zubhhllslc(jwhptndflf) = lgdeqyxoay vxhkfxtnui (gyxwlucqep, 16.35 - 48.11)
Positive
25 Jul 2024
Placebo plPembrolizumabmab
zubhhllslc(jwhptndflf) = wvrcofymfu vxhkfxtnui (gyxwlucqep, 4.67 - 29.50)
Phase 2
metastatic non-small cell lung cancer
First line
PD-L1 tumor proportion score | tumor histology
178
vcdyxhmmvq(aamiypwnel) = ijuurlhymp skbtbjwpyj (xkjavxdtis, 17.7 - 36.7)
Negative
25 Jul 2024
Placebo-Pembrolizumab-Chemotherapy
vcdyxhmmvq(aamiypwnel) = tyqnlnntga skbtbjwpyj (xkjavxdtis, 34.1 - 55.9)
Phase 3
Transitional Cell Carcinoma
First line
circulating kynurenine levels
93
mqndboghtv(dzmoowammi) = pyqtrwkpdx cvzmmzzwln (uzcakgmnqy, 22.46 - 55.24)
Negative
25 Jul 2024
Placebo plus Pembrolizumab
mqndboghtv(dzmoowammi) = ihkoprqdhy cvzmmzzwln (uzcakgmnqy, 15.33 - 43.67)
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Regulation

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