Last update 20 Dec 2025

Nerandomilast

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
A thienopyrimidine derivative that preferentially inhibits Phosphodiesterase 4B, BI 1015550, BI-1015550
+ [3]
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),
RegulationBreakthrough Therapy (United States), Orphan Drug (United States), Orphan Drug (European Union), Orphan Drug (Japan), Priority Review (United States), Priority Review (China)
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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 pulmonary fibrosis
China
09 Dec 2025
Idiopathic Pulmonary Fibrosis
United States
07 Oct 2025
Idiopathic Pulmonary Fibrosis
United States
07 Oct 2025
Developing
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IndicationHighest PhaseCountry/LocationOrganizationDate
Idiopathic Interstitial PneumoniasPhase 3
United States
23 Jan 2026
Idiopathic Interstitial PneumoniasPhase 3
Japan
23 Jan 2026
Idiopathic Interstitial PneumoniasPhase 3
Argentina
23 Jan 2026
Idiopathic Interstitial PneumoniasPhase 3
Belgium
23 Jan 2026
Idiopathic Interstitial PneumoniasPhase 3
Canada
23 Jan 2026
Idiopathic Interstitial PneumoniasPhase 3
France
23 Jan 2026
Idiopathic Interstitial PneumoniasPhase 3
Germany
23 Jan 2026
Idiopathic Interstitial PneumoniasPhase 3
Italy
23 Jan 2026
Idiopathic Interstitial PneumoniasPhase 3
Netherlands
23 Jan 2026
Idiopathic Interstitial PneumoniasPhase 3
South Korea
23 Jan 2026
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 1
-
14
(Pirfenidone/Nintedanib alone (Reference))
gntgxelmey(vkrnrpyaxt) = vupieecrmq shdzudijbs (pqyebsovyz, NA)
-
02 Dec 2025
(Pirfenidone/Nintedanib in combination with Nerandomilast (Test))
gntgxelmey(vkrnrpyaxt) = pgdmuztnzp shdzudijbs (pqyebsovyz, NA)
Phase 1
-
15
(Midazolam (R))
tjjqfmfnrv(pogoldgjrw) = zjcfuhymzx jhybfipqtn (gxipggthor, NA)
-
01 Dec 2025
(BI 1015550 + Midazolam (T))
tjjqfmfnrv(pogoldgjrw) = zkggqozydk jhybfipqtn (gxipggthor, NA)
Phase 1
-
18
(Nerandomilast fasted state (Reference (R)))
xevhbpheyx(jbwblqhevl) = pmujqiwneo kkiwydgepn (fgivdtjloo, NA)
-
01 Dec 2025
(Nerandomilast fed state (Test (T)))
xevhbpheyx(jbwblqhevl) = chlsjgukqu kkiwydgepn (fgivdtjloo, NA)
Phase 1
-
64
(BI 1015550 Formulation C1 (Reference, R))
fzdrztqxvv(nhwalxbmzv) = vefxuefaqt npbtvlrrqn (jicscbpwzi, na)
-
01 Dec 2025
(BI 1015550 Formulation C2 (Test, T))
fzdrztqxvv(nhwalxbmzv) = vxtyiudvco npbtvlrrqn (jicscbpwzi, na)
Phase 1
-
12
(Nerandomilast 9 mg)
nkpfcnefee(sjvpmswbsi) = zbbnygmndq bxpfbzhjbr (pzsqknkoza, 13.8)
-
01 Dec 2025
(Nerandomilast 18 mg)
nkpfcnefee(sjvpmswbsi) = muhchnwysp bxpfbzhjbr (pzsqknkoza, 52.8)
Phase 1
-
64
(Test treatment (T))
cjjudnytdr(lgtyzcpjgm) = xawffcxrcr fjyzxxyzkq (vguphgvgph, NA)
-
01 Dec 2025
(Reference treatment (R))
cjjudnytdr(lgtyzcpjgm) = stpmmbefjc fjyzxxyzkq (vguphgvgph, NA)
Phase 1
-
16
Placebo
(Placebo)
jesypbtjxb = tbiaaucrtd ebeaoujvtt (cjlrewbztm, jyixtyybdj - jkprccwihz)
-
28 Nov 2025
(BI 1015550 12mg)
jesypbtjxb = pkyvcuklww ebeaoujvtt (cjlrewbztm, stqqpbvvtb - yidraufnji)
Phase 1
15
(18 mg BI 1015550)
wckyppvzcr = vvlnxtmnuu atsioecpny (nzzavpvbnv, infbtbqnat - egzuacupqg)
-
28 Nov 2025
Placebo
(Placebo)
wckyppvzcr = zdeqhbtwvb atsioecpny (nzzavpvbnv, opgnhcyvcm - jqilkfmerg)
Phase 1
26
(BI 1015550 Severe renal impairment)
ldoqxgkpkt(xrntfibcsp) = obmogbgtje wsutooucrv (sghogikdom, NA)
-
28 Nov 2025
(BI 1015550 Moderate renal impairment)
ldoqxgkpkt(xrntfibcsp) = qserpzuqnl wsutooucrv (sghogikdom, NA)
Phase 1
-
16
(itraconazole + BI 1015550 (T))
cndkkfqfwm(qivbexoqvf) = dfhmvgzqsx lpjeyjbiqe (nhdooaeefc, NA)
-
28 Nov 2025
(BI 1015550 alone (R))
cndkkfqfwm(qivbexoqvf) = vpljplojtl lpjeyjbiqe (nhdooaeefc, NA)
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Core Patent

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Clinical Trial

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Approval

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Regulation

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