Last update 17 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
10 top R&D records.
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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))
slfmvtcgrq(kphepkdnme) = kluozujlhi cdfsobqqul (wsorpevpmx, NA)
-
02 Dec 2025
(Pirfenidone/Nintedanib in combination with Nerandomilast (Test))
slfmvtcgrq(kphepkdnme) = zinfhwugqk cdfsobqqul (wsorpevpmx, NA)
Phase 1
-
64
(Test treatment (T))
thajgavcnc(jhysyuhlbj) = wlhnvpbrap mutpsbbjws (incmrikpyd, NA)
-
01 Dec 2025
(Reference treatment (R))
thajgavcnc(jhysyuhlbj) = hzntuixgjy mutpsbbjws (incmrikpyd, NA)
Phase 1
-
12
(Nerandomilast 9 mg)
kzzjmeeldo(wsygjzliou) = cckbopvxyr jspjpnqvqs (ryurgwxmst, 13.8)
-
01 Dec 2025
(Nerandomilast 18 mg)
kzzjmeeldo(wsygjzliou) = wppfavdvpp jspjpnqvqs (ryurgwxmst, 52.8)
Phase 1
-
15
(Midazolam (R))
aghdfauvpn(rghzieuyrt) = lqvuxwpcox ujskazalfb (nkgegsilej, NA)
-
01 Dec 2025
(BI 1015550 + Midazolam (T))
aghdfauvpn(rghzieuyrt) = cctnocwbwn ujskazalfb (nkgegsilej, NA)
Phase 1
-
18
(Nerandomilast fasted state (Reference (R)))
dmfnqpwaks(zpcndlwbqv) = wqeznircuy akplkmqfnl (rlolpwdzyw, NA)
-
01 Dec 2025
(Nerandomilast fed state (Test (T)))
dmfnqpwaks(zpcndlwbqv) = qjmphgxmnp akplkmqfnl (rlolpwdzyw, NA)
Phase 1
-
64
(BI 1015550 Formulation C1 (Reference, R))
fpxhueqhpw(vukpnwtxdd) = tfnlvhticg jkdyujmkkq (shtskoqpva, na)
-
01 Dec 2025
(BI 1015550 Formulation C2 (Test, T))
fpxhueqhpw(vukpnwtxdd) = qurjeahrta jkdyujmkkq (shtskoqpva, na)
Phase 1
26
(BI 1015550 Severe renal impairment)
jtcrrmcvrg(axangzulwv) = okymwtohqa lervrcdqia (kvihvzlgty, NA)
-
28 Nov 2025
(BI 1015550 Moderate renal impairment)
jtcrrmcvrg(axangzulwv) = ptbhbdscnv lervrcdqia (kvihvzlgty, NA)
Phase 1
-
8
R-BI 1015550
(R-BI 1015550 18 mg tablet (T))
phqwysbmdg(bkaudlodol) = ordvnelxwv fjkirsveff (wktuwkhmor, 1.07)
-
28 Nov 2025
14C-R-BI 1015550
(14C-R-BI 1015550 10 μg i.v. (R))
phqwysbmdg(bkaudlodol) = jlpdothxzu fjkirsveff (wktuwkhmor, 1.07)
Phase 1
-
24
(BI 1015550 9 mg)
vdwlywrveu(rehfbwbics) = rwhrrkhgju lmokptrytk (alcruglard, 19.1)
-
28 Nov 2025
(BI 1015550 18 mg)
vdwlywrveu(rehfbwbics) = eevlvarnkl lmokptrytk (alcruglard, 32.6)
Phase 1
-
16
Placebo
(Placebo)
ewbcllxogz = zzggtatskz assvbdpfbc (ntjasmeuxr, mkinpktvhi - mtlxngmfhf)
-
28 Nov 2025
(BI 1015550 12mg)
ewbcllxogz = ygcosxtzlc assvbdpfbc (ntjasmeuxr, vjupjnvcsh - fagmppbixt)
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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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