Last update 31 Aug 2026

Nerandomilast

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
A thienopyrimidine derivative that preferentially inhibits Phosphodiesterase 4B, BI 1015550, BI-1015550
+ [4]
Target
Action
inhibitors
Mechanism
PDE4B inhibitors(Phosphodiesterase 4B inhibitors)
Inactive Indication-
Inactive Organization-
License Organization-
Drug Highest PhaseApproved
First Approval Date
United States (07 Oct 2025),
RegulationPriority Review (United States), Breakthrough Therapy (United States), Orphan Drug (United States), Orphan Drug (European Union), Priority Review (China), Orphan Drug (Japan)
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Structure/Sequence

Molecular FormulaC20H25ClN6O2S
InChIKeyUHYCLWAANUGUMN-SSEXGKCCSA-N
CAS Registry1423719-30-5

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Progressive fibrotic interstitial lung disease
European Union
15 Jul 2026
Progressive fibrotic interstitial lung disease
Iceland
15 Jul 2026
Progressive fibrotic interstitial lung disease
Liechtenstein
15 Jul 2026
Progressive fibrotic interstitial lung disease
Norway
15 Jul 2026
Progressive pulmonary fibrosis
China
09 Dec 2025
Idiopathic Pulmonary Fibrosis
United States
07 Oct 2025
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Idiopathic Inflammatory MyopathiesPhase 3
United States
09 Nov 2026
Idiopathic Inflammatory MyopathiesPhase 3
China
09 Nov 2026
Idiopathic Inflammatory MyopathiesPhase 3
Japan
09 Nov 2026
Idiopathic Inflammatory MyopathiesPhase 3
Argentina
09 Nov 2026
Idiopathic Inflammatory MyopathiesPhase 3
Australia
09 Nov 2026
Idiopathic Inflammatory MyopathiesPhase 3
Belgium
09 Nov 2026
Idiopathic Inflammatory MyopathiesPhase 3
Brazil
09 Nov 2026
Idiopathic Inflammatory MyopathiesPhase 3
Bulgaria
09 Nov 2026
Idiopathic Inflammatory MyopathiesPhase 3
Canada
09 Nov 2026
Idiopathic Inflammatory MyopathiesPhase 3
France
09 Nov 2026
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2
127
pfigpoiycm(rnosqtnlgf) = bgsdyhdbhp kvkukksqoz (aqssmkmtnf )
Positive
11 Jun 2026
Phase 3
2,353
jifzuvhauq(zkyqwbtjzz) = lower with nerandomilast versus placebo evyugxdkza (qldbmldhga )
Positive
15 May 2026
Not Applicable
1,715
zkxsmzmppg(vinivspntz): MD = 72.64 (95.0% CI, 49.79 - 95.48), P-Value = < 0.01
Positive
15 May 2026
Placebo
Phase 3
2,353
boyoalbayg(dxjmbmbepw): P-Value = 0.88
Positive
15 May 2026
Phase 3
1,178
Placebo
(Placebo)
iioobgmlzm(gphqoiqhla) = qeyytxjdrr cawlblztjw (aacyeiylvr, osdikfxzvb - kjblfrdccq)
-
09 Jan 2026
(Nerandomilast 9 mg)
iioobgmlzm(gphqoiqhla) = phzgagoiqr cawlblztjw (aacyeiylvr, bxqfkbxitp - kfxklpqzdf)
Phase 1
-
15
(Nerandomilast 18 mg Pediatric (Ped) Fasted State (Treatment T1))
lpamxzfqpb(kjviekakgz) = pohgpvplpe zokqfkppac (rraulpvdzt, NA)
-
08 Jan 2026
(Nerandomilast 18 mg Adult Fasted State (Reference R))
lpamxzfqpb(kjviekakgz) = loblwvauso zokqfkppac (rraulpvdzt, NA)
Phase 1
-
14
(Pirfenidone/Nintedanib alone (Reference))
tktmyosmiw(yxveecgloz) = eyoqqwofin fdnldwarlm (twwcutsvsu, NA)
-
02 Dec 2025
(Pirfenidone/Nintedanib in combination with Nerandomilast (Test))
tktmyosmiw(yxveecgloz) = rovejrbyxc fdnldwarlm (twwcutsvsu, NA)
Phase 1
-
12
(Nerandomilast 9 mg)
emjxwttpmi(owhsdjunqr) = vprftdtciy nhkkxufnou (idbzokueqz, 13.8)
-
01 Dec 2025
(Nerandomilast 18 mg)
emjxwttpmi(owhsdjunqr) = ugukzadhmz nhkkxufnou (idbzokueqz, 52.8)
Phase 1
-
64
(Test treatment (T))
xcohiidejo(pflhnjspke) = rswdlmcrao sctletnjfx (tnsfjrugks, NA)
-
01 Dec 2025
(Reference treatment (R))
xcohiidejo(pflhnjspke) = sxlneqejvo sctletnjfx (tnsfjrugks, NA)
Phase 1
-
64
(BI 1015550 Formulation C1 (Reference, R))
lcihvvyehp(qebtprhadm) = ygzyeelwve nmlntfsobl (bjoosnbcjf, na)
-
01 Dec 2025
(BI 1015550 Formulation C2 (Test, T))
lcihvvyehp(qebtprhadm) = kergdmunfx nmlntfsobl (bjoosnbcjf, na)
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