gefapixant 🐶 Veterinary Use | Indications/Contra | FAERs-F | FAERs-M | Orange Bk | PK/Tox | Related Drugs | BioActivity |

Stem definitionDrug idCAS RN
purinoreceptor (P2X) antagonists 5519 1015787-98-0

Description:

MoleculeDescription

Molfile Inchi Smiles

Synonyms:

  • gefapixant
  • gefapixant citrate
  • lyfnua
  • AF-219
  • RO4926219
  • MK-7264
Gefapixant is a selective, non-narcotic P2X3 receptor antagonist being approved for the treatment of refractory chronic cough or unexplained chronic cough.
  • Molecular weight: 353.40
  • Formula: C14H19N5O4S
  • CLOGP: 0.60
  • LIPINSKI: 0
  • HAC: 9
  • HDO: 3
  • TPSA: 156.44
  • ALOGS: -2.85
  • ROTB: 5

Drug dosage:

DoseUnitRoute
90 mg O

ADMET properties:

None

Predicted pharmacokinetic/toxicological properties (PK-AZ):

PropertyDescriptionValueUnitConfidenceSimilarity
azlogd74 LogD at pH 7.4 0.842 High 1
caco2-efflux Caco-2 efflux ratio (BA/AB) 5.346 High 1
caco2-intrinsic-papp Caco-2 intrinsic apparent permeability 5.035 10^-6 cm/s High 1
dh-clint Dog hepatocyte intrinsic clearance 1.242 uL/min/10^6 cells High 1
dppb Dog plasma protein binding (% unbound) 56.070 % High 1
fcs-ppb Fetal calf serum protein binding (% unbound) 67.730 % High 1
herg hERG pIC50 4.479 pIC50 High 1
hh-clint Human hepatocyte intrinsic clearance 1.393 uL/min/10^6 cells High 1
hlm-clint Human liver microsomal intrinsic clearance 3.119 uL/min/mg protein High 1
hppb Human plasma protein binding (% unbound) 47.300 % High 1
kinase-safety-class ACVR2B,AXL,BRAF,CAMK2D,CDK9,ERBB2,GRK2,ITK,MAP3K21,MAPK7,PDK1,PDK2,PDK4,PIK3CA,PIK3CD,PIK3CG,PRKDC 17
kinase-selectivity-class MAP3K21,PIK3CD 2
mdck-mdr1-bcrp-efflux MDCK-MDR1-BCRP efflux ratio 2.138 High 1
mdck-mdr1-efflux MDCK-MDR1 efflux ratio 3.155 High 1
mh-clint Mouse hepatocyte intrinsic clearance 4.624 High 1
mppb Mouse plasma protein binding (% unbound) 55.790 High 1
nih-mdck-mdr1-efflux NIH MDCK-MDR1 efflux ratio 8.337 High 1
pfas-class PFAS structural alert (1 = True, 0 = False) 0
pppb Pig plasma protein binding (% unbound) 68.630 % High 1
rat-kpuu-brain Rat brain Kpuu 0.017 % High 1
rh-clint Rat hepatocyte intrinsic clearance 2.168 uL/min/10^6 cells High 1
rh-fuinc Rat hepatocyte fraction unbound in incubation 91.100 % High 1
rppb Rat plasma protein binding (% unbound) 51.900 % High 1
solubility-dd Solubility at pH 7.4 in DMSO 393.550 uM High 1

Approvals:

DateAgencyCompanyOrphan
Jan. 20, 2022 PMDA MSD K.K.
Sept. 15, 2023 EMA Merck Sharp & Dohme B.V.

FDA Adverse Event Reporting System (Female)

None

FDA Adverse Event Reporting System (Male)

None

FDA Adverse Event Reporting System (Geriatric)

None

FDA Adverse Event Reporting System (Pediatric)

None

Pharmacologic Action:

SourceCodeDescription
ATC R05DB29 RESPIRATORY SYSTEM
COUGH AND COLD PREPARATIONS
COUGH SUPPRESSANTS, EXCL. COMBINATIONS WITH EXPECTORANTS
Other cough suppressants
CHEBI has role CHEBI:51177 antitussive
CHEBI has role CHEBI:65023 anti-asthmatic agent
CHEBI has role CHEBI:67079 anti-inflammatory agent
CHEBI has role CHEBI:233423 antifibrotic agent

Related Drugs by ATC class:

R05DB Other cough suppressants 25 drugs

Drug Use | Suggest Off label Use Form| |View source of the data|

DiseaseRelationSNOMED_IDDOID
Refractory chronic cough indication 2561000112106




🐶 Veterinary Drug Use

None

🐶 Veterinary products

None

Acid dissociation constants calculated using MoKa v3.0.0

None

Orange Book patent data (new drug applications)

None

Orange Book exclusivity data (new drug applications)

None

Bioactivity Summary:

TargetClassPharosUniProtActionTypeActivity value
(-log[M])
Mechanism
action
Bioact sourceMoA source
P2X purinoceptor 3 Ion channel ANTAGONIST IC50 7.37 SCIENTIFIC LITERATURE SCIENTIFIC LITERATURE

External reference:

IDSource
CHEBI:755863 CHEBI
AF9 PDB_CHEM_ID
CHEMBL3716057 ChEMBL_ID
C000597312 MESH_SUPPLEMENTAL_RECORD_UI
9540 IUPHAR_LIGAND_ID
DB15097 DRUGBANK_ID
1351858009 SNOMEDCT_US
467511000202104 SNOMEDCT_US
C5139827 UMLSCUI
CHEMBL4594278 ChEMBL_ID
D11349 KEGG_DRUG
10642 INN_ID
2310299-91-1 SECONDARY_CAS_RN
24764487 PUBCHEM_CID
6K6L7E3F1L UNII

Pharmaceutical products:

None