Linifanib

drug
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Also known as A-741439ABT-869AL-39324RG-3635SID103904340SID137275904LINIFANIB (ABT-869)LinifanibÊLinifanibÂ

Summary

Linifanib (CHEMBL223360) is a phase-3 clinical-stage small-molecule antineoplastic agent targeting PDGFRB, KIT, and CSF1R; indicated across 10 conditions including hepatocellular carcinoma and renal cell carcinoma; with CIViC clinical evidence for 4 variant-indication associations (e.g. FLT3 D593del in cancer).

At a glance

  • Status: Max clinical phase 3 (not approved)
  • Modality: Small molecule
  • Targets: 11 (PDGFRB, KIT, CSF1R…)
  • Indications: 10 conditions
  • Clinical trials: 19
  • Precision-oncology evidence (CIViC): 4 variant–indication associations
  • Chemistry: 375.4 Da · C21H18FN5O

Identifiers

Drug identity and classification

FieldValue
ChEMBL IDCHEMBL223360
NameLinifanib
TypeSmall molecule
Max phase3
FDA approvedno
PubChem CID11485656
ChEBICHEBI:91435
Molecular formulaC21H18FN5O
Molecular weight375.4
InChIKeyMPVGZUGXCQEXTM-UHFFFAOYSA-N

SMILES: CC1=CC(=C(C=C1)F)NC(=O)NC2=CC=C(C=C2)C3=C4C(=CC=C3)NN=C4N

IUPAC name: 1-[4-(3-amino-1H-indazol-4-yl)phenyl]-3-(2-fluoro-5-methylphenyl)urea

ChEBI definition: A member of the class of phenylureas that is urea in which one of the nitrogens is substituted by a 2-fluoro-5-methylphenyl group, while the other is substituted by a p-(3-amino-1H-indazol-4-yl)phenyl group. It is a potent, selective inhibitor of vascular endothelial growth factor and platelet-derived growth factor receptor tyrosine kinases.

Pharmacological roles (ChEBI): antineoplastic agent, EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor, angiogenesis inhibitor.

Also known as: A-741439, ABT-869, AL-39324, Linifanib, RG-3635, SID103904340, LINIFANIB, SID137275904, LINIFANIB (ABT-869), LinifanibÊ, Linifanib (ABT-869), LinifanibÂ

Patent coverage: 1,533 distinct patent families (3,925 SureChEMBL compound mentions), from 2 matched compound structure(s). One matched structure accounts for 3,792 (97%) of the total. Mentions count patents naming the compound (not distinct inventions), so promiscuous / reference molecules inflate the mention figure — families are the dedup metric.

Targets

Targets

Primary targets (GtoPdb curated mechanism): the Cancer dependency column is the DepMap CRISPR fitness signal (% of screened cell lines dependent on the target).

GeneTargetActionpAffinityCancer dependencyUniProt
PDGFRBplatelet derived growth factor receptor betaInhibition7.182.3%P09619
KITKIT proto-oncogene, receptor tyrosine kinaseInhibition7.850.5%P10721
CSF1Rcolony stimulating factor 1 receptorInhibition8.520%P07333
FLT3fms related receptor tyrosine kinase 3Inhibition8.40.9%P36888
FLT1fms related receptor tyrosine kinase 1Inhibition8.520.1%P17948
KDRkinase insert domain receptorInhibition8.41.1%P35968
FLT4fms related receptor tyrosine kinase 4Inhibition6.720.2%P35916
TEKTEK receptor tyrosine kinaseInhibition6.770%Q02763
CDK19cyclin dependent kinase 19Inhibition7.920.1%Q9BWU1
CDK8cyclin dependent kinase 8Inhibition8.166.5%P49336
RETret proto-oncogeneInhibition5.720.4%P07949

Broader ChEMBL bioactivity targets: 135 (assay-derived). Sample: Homeodomain-interacting protein kinase 4, Cyclin-dependent kinase 13, Macrophage colony-stimulating factor 1 receptor, Tyrosine-protein kinase ABL1, Protein deacetylase HDAC6, Vascular endothelial growth factor receptor 1, Platelet-derived growth factor receptor beta, Mast/stem cell growth factor receptor Kit, Vascular endothelial growth factor receptor 3, Receptor-type tyrosine-protein kinase FLT3.

Bioactivity

ChEMBL activities: 311 potent at pChembl ≥ 5 of 314 total. Top 30 by potency (10 = 0.1 nM, 6 = 1 µM):

TargetpChemblTypeValueUnitActivity ID
FLT39.2Kd0.63nMCHEMBL_ACT_2907377
FLT39.2Kd0.63nMCHEMBL_ACT_7583484
CDK89Ki1nMCHEMBL_ACT_9644434
FLT38.89Kd1.3nMCHEMBL_ACT_7583488
KIT8.77Kd1.7nMCHEMBL_ACT_2897021
KIT8.77Kd1.7nMCHEMBL_ACT_7583337
PDGFRB8.72Kd1.9nMCHEMBL_ACT_2899063
KIT8.72Kd1.9nMCHEMBL_ACT_7583336
PDGFRB8.72Kd1.9nMCHEMBL_ACT_7583422
KIT8.7Kd2nMCHEMBL_ACT_2895921
KIT8.7Kd2nMCHEMBL_ACT_6220441
KIT8.7Kd2nMCHEMBL_ACT_7583332
KDR8.64IC502.3nMCHEMBL_ACT_14746904
FLT38.59Kd2.6nMCHEMBL_ACT_2890843
FLT38.59Kd2.6nMCHEMBL_ACT_7583489
FLT38.57Kd2.7nMCHEMBL_ACT_2907415
FLT38.57Kd2.7nMCHEMBL_ACT_7583485
FLT18.52IC503nMCHEMBL_ACT_1826430
CSF1R8.52IC503nMCHEMBL_ACT_1826433
FLT18.52IC503nMCHEMBL_ACT_18568749
CSF1R8.52IC503nMCHEMBL_ACT_18568752
FLT18.52IC503nMCHEMBL_ACT_26132432
CSF1R8.47Kd3.4nMCHEMBL_ACT_2902370
CSF1R8.47Kd3.4nMCHEMBL_ACT_7583545
KIT8.42Kd3.8nMCHEMBL_ACT_2896945
KIT8.42Kd3.8nMCHEMBL_ACT_7583338
KDR8.4IC504nMCHEMBL_ACT_1826115
KDR8.4IC504nMCHEMBL_ACT_1826380
KDR8.4IC504nMCHEMBL_ACT_18568745
FLT38.4IC504nMCHEMBL_ACT_18568746

Target pathways

Aggregated over 11 target gene(s): PDGFRB, KIT, CSF1R, FLT3, FLT1, KDR, FLT4, TEK, CDK19, CDK8, RET.

Top Reactome pathways

109 total, by targets touching each:

PathwayTargetsGenes
RAF/MAP kinase cascade5FLT3, KIT, PDGFRB, RET, TEK
PIP3 activates AKT signaling3FLT3, KIT, PDGFRB
Developmental Biology3CDK19, CDK8, KIT
Signal Transduction3CDK8, KIT, TEK
Disease3CDK19, CDK8, KIT
VEGF binds to VEGFR leading to receptor dimerization3FLT1, FLT4, KDR
Constitutive Signaling by Aberrant PI3K in Cancer3FLT3, KIT, PDGFRB
PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling3FLT3, KIT, PDGFRB
Metabolism2CDK19, CDK8
Neuropilin interactions with VEGF and VEGFR2FLT1, KDR
PPARA activates gene expression2CDK19, CDK8
Generic Transcription Pathway2CDK8, KIT
Transcriptional regulation of white adipocyte differentiation2CDK19, CDK8
Regulation of lipid metabolism by PPARalpha2CDK19, CDK8
Metabolism of lipids2CDK19, CDK8
Diseases of signal transduction by growth factor receptors and second messengers2CDK8, KIT
Infectious disease2CDK19, CDK8
MAPK family signaling cascades2KIT, TEK
MAPK1/MAPK3 signaling2KIT, TEK
RNA Polymerase II Transcription2CDK8, KIT
Gene expression (Transcription)2CDK8, KIT
Respiratory Syncytial Virus Infection Pathway2CDK19, CDK8
Viral Infection Pathways2CDK19, CDK8
RSV-host interactions2CDK19, CDK8
Adipogenesis2CDK19, CDK8
High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells2FLT4, KDR
Hemostasis1TEK
PI3K Cascade1FLT3
Signaling by SCF-KIT1KIT
Regulation of KIT signaling1KIT

Dominant GO biological processes

GO termTargets
protein phosphorylation11
cell surface receptor protein tyrosine kinase signaling pathway9
positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction8
positive regulation of cell population proliferation7
positive regulation of cell migration7
protein autophosphorylation7
cell migration7
positive regulation of MAPK cascade7
peptidyl-tyrosine phosphorylation6
angiogenesis5
positive regulation of ERK1 and ERK2 cascade5
hemopoiesis5
signal transduction4
negative regulation of apoptotic process4
vascular endothelial growth factor signaling pathway4

Indications & clinical

Indications

10 indications (0 at ChEMBL trial phase 4). Phase below is the highest clinical-trial phase recorded for this drug against each disease — not the molecule’s overall approval status (that is in the Summary).

IndicationTrial phaseMONDOEFO
hepatocellular carcinoma3MONDO:0007256EFO:0000182
renal cell carcinoma2MONDO:0005086EFO:0000681
age-related macular degeneration2MONDO:0005150EFO:0001365
non-small cell lung carcinoma2MONDO:0005233EFO:0003060
colorectal adenocarcinoma2MONDO:0005008EFO:0000365
rectal cancer2MONDO:0006519EFO:1000657
breast neoplasm2MONDO:0021100MONDO:0007254
colonic neoplasm2MONDO:0005401MONDO:0021063
neoplasm1MONDO:0005070EFO:0000616
endometriosis1MONDO:0005133EFO:0001065

Clinical trials

Total trials: 19.

Phase distribution

PhaseTrials
PHASE110
PHASE27
PHASE31
PHASE1/PHASE21

Top trials by phase / activity

NCTPhaseStatusTitle
NCT01009593PHASE3TERMINATEDEfficacy and Tolerability of ABT-869 Versus Sorafenib in Advanced Hepatocellular Carcinoma (HCC)
NCT00486538PHASE2COMPLETEDStudy of ABT-869 in Subjects With Advanced Renal Cell Carcinoma Who Have Previously Received Treatment With Sunitinib
NCT00517790PHASE2COMPLETEDStudy of ABT-869 in Subjects With Advanced Non-small Cell Lung Cancer (NSCLC)
NCT00517920PHASE2COMPLETEDPhase 2 Study of ABT-869 in Advanced Hepatocellular Carcinoma (HCC)
NCT00645177PHASE2COMPLETEDPhase 2 Study of ABT-869 in Combination With Paclitaxel Versus Paclitaxel Alone to Treat Metastatic Breast Cancer
NCT00707889PHASE2COMPLETEDPhase 2 Study of ABT-869 in Combination With mFOLFOX6 Versus Bevacizumab in Combination With mFOLFOX6 to Treat Advanced Colorectal Cancer
NCT00716534PHASE2COMPLETEDStudy of Carboplatin/Paclitaxel in Combination With ABT-869 in Subjects With Advanced or Metastatic Non-Small Cell Lung Cancer (NSCLC)
NCT01365910PHASE2TERMINATEDLinifanib in Treating Patients With Advanced, Refractory Colorectal Cancer
NCT03481842PHASE1/PHASE2WITHDRAWNSafety, Tolerability and Efficacy of Vaginal Suppositories for Treatment of the Endometriosis
NCT00718380PHASE1COMPLETEDA Phase 1 Study of ABT-869 in Subjects With Solid Tumors
NCT00733187PHASE1COMPLETEDPharmacokinetic Study To Evaluate Effect of Food and Diurnal Variation on ABT-869
NCT00754104PHASE1WITHDRAWNStudy of ABT-869 in Combination With Tarceva in Subjects With Solid Tumors
NCT01114191PHASE1COMPLETEDA Study to Assess the Effect of Ketoconazole on the Pharmacokinetics of Linifanib (ABT-869)
NCT01225302PHASE1COMPLETEDA Study of Linifanib (ABT-869) in Combination With Carboplatin/Paclitaxel in Japanese Subjects With Non-Small Cell Lung Cancer (NSCLC)
NCT01286974PHASE1TERMINATEDA Pharmacokinetic Study to Access How the Body Absorbs and Removes Linifanib in Male Patients With Advanced Solid Tumors.
NCT01381341PHASE1COMPLETEDTo Compare Relative Bioavailability of Two Clinical Formulations of Linifanib.
NCT01401933PHASE1COMPLETEDEffect of Rifampin on the Pharmacokinetics of Linifanib in Subjects With Advanced or Metastatic Solid Tumors
NCT01413893PHASE1COMPLETEDAn Extension Study of Linifanib (ABT-869) in Subjects With Advanced or Metastatic Solid Tumors
NCT01506934PHASE1TERMINATEDA Study Evaluating the Bioavailability of Two Formulations of Linifanib and Food Effect on Pharmacokinetics of Linifanib in Subjects With Advanced or Metastatic Solid Tumors

Clinical evidence (CIViC)

Variant × indication × effect (4 predictive associations from 4 curated evidence items):

VariantIndicationEffectTherapyLevelCIViC
FLT3 D593delCancerSensitivity/ResponseSorafenib + Sunitinib + Quizartinib + LinifanibCIViC DEID11094
FLT3 D835YCancerSensitivity/ResponseQuizartinib + KW2449 + R406 + Ponatinib + AG1295 + Sorafenib + Sunitinib + AGS324 + LinifanibCIViC DEID11086
FLT3 ITDCancerSensitivity/ResponseFLT3 Tyrosine Kinase Inhibitor TTT-3002 + R406 + Ponatinib + Crenolanib + KW2449 + Sorafenib + Sunitinib + Quizartinib + Linifanib + AGS324 + AG1295 + Lestaurtinib + MidostaurinCIViC DEID11084
FLT3 Overexpression AND FLT3LG ExpressionCancerSensitivity/ResponseQuizartinib + Linifanib + Lestaurtinib + Midostaurin + Ponatinib + FLT3 Tyrosine Kinase Inhibitor TTT-3002 + SunitinibCIViC DEID11088

Pharmacology

Pharmacogenomics

No PharmGKB pharmacogenomic data curated for this drug.

Molecules sharing ≥1 of this drug’s curated primary targets, merged from two biobtree sources and ranked by shared-target count, then clinical phase: ChEMBL clinical-stage candidates (development phase ≥2) and PubChem drug-class bioactivity (approved / known drugs acting on the target). Deduplicated by drug name; the drug’s own salt forms are excluded. Note: for a drug with few primary targets a shared-target match can reflect off-target / promiscuous binding rather than the same therapeutic mechanism — the phase ordering surfaces bona-fide therapeutics first.

272 molecules share ≥1 primary target. Top 60 by shared-target count:

MoleculeSourceStatusShared targets
AfatinibChEMBL + PubChemPhase 4 (approved)CDK19, CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
CrizotinibChEMBL + PubChemPhase 4 (approved)CDK19, CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
PAZOPANIBChEMBL + PubChemPhase 4 (approved)CDK19, CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
QUIZARTINIBChEMBL + PubChemPhase 4 (approved)CDK19, CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
SORAFENIBChEMBL + PubChemPhase 4 (approved)CDK19, CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
DORAMAPIMODChEMBLPhase 2CDK19, CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
FORETINIBChEMBLPhase 2CDK19, CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
SelumetinibPubChemApprovedCDK19, CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
AXITINIBChEMBL + PubChemPhase 4 (approved)CDK19, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
FEDRATINIBChEMBL + PubChemPhase 4 (approved)CDK19, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
GEFITINIBChEMBL + PubChemPhase 4 (approved)CDK19, CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, RET, TEK
MIDOSTAURINChEMBL + PubChemPhase 4 (approved)CDK19, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
VANDETANIBChEMBL + PubChemPhase 4 (approved)CDK19, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
LESTAURTINIBChEMBLPhase 3CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
RAF-265ChEMBLPhase 2CDK19, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
TOZASERTIBChEMBLPhase 2CDK19, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
PONATINIBChEMBL + PubChemPhase 4 (approved)CDK19, CDK8, CSF1R, FLT1, FLT3, KDR, KIT, PDGFRB, RET
REGORAFENIBChEMBL + PubChemPhase 4 (approved)CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
SUNITINIBChEMBL + PubChemPhase 4 (approved)CDK19, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET
NINTEDANIBChEMBLPhase 4 (approved)CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
CEDIRANIBChEMBLPhase 3CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
VATALANIBChEMBLPhase 3CDK19, CDK8, CSF1R, FLT1, FLT4, KDR, KIT, PDGFRB, RET
DEFOSBARASERTIBChEMBLPhase 2CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
ILORASERTIBChEMBLPhase 2CDK8, CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET
R-406ChEMBLPhase 2CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
ERLOTINIBChEMBL + PubChemPhase 4 (approved)CDK19, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET
TIVOZANIBChEMBLPhase 4 (approved)FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET, TEK
BRIVANIBChEMBLPhase 3CSF1R, FLT1, FLT4, KDR, KIT, PDGFRB, RET, TEK
DOVITINIBChEMBLPhase 3CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET
MOTESANIBChEMBLPhase 3CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET
SEMAXANIBChEMBLPhase 3CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET
CENISERTIBChEMBLPhase 2CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET
REBASTINIBChEMBLPhase 2CSF1R, FLT1, FLT3, FLT4, KDR, KIT, RET, TEK
SU-014813ChEMBLPhase 2CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB, RET
IdelalisibPubChemApprovedCSF1R, FLT1, FLT3, FLT4, KIT, PDGFRB, RET, TEK
BOSUTINIBChEMBL + PubChemPhase 4 (approved)CDK19, CSF1R, FLT3, KIT, PDGFRB, RET, TEK
NILOTINIBChEMBL + PubChemPhase 4 (approved)CDK19, CSF1R, FLT3, KIT, PDGFRB, RET, TEK
PEXIDARTINIBChEMBL + PubChemPhase 4 (approved)CDK19, CSF1R, FLT1, FLT3, KDR, KIT, PDGFRB
CABOZANTINIBChEMBLPhase 4 (approved)FLT1, FLT3, FLT4, KDR, KIT, RET, TEK
DASATINIBChEMBLPhase 4 (approved)CSF1R, FLT1, FLT3, KDR, KIT, PDGFRB, RET
ENTRECTINIBChEMBLPhase 4 (approved)CSF1R, FLT1, FLT3, FLT4, KDR, KIT, RET
INFIGRATINIBChEMBLPhase 4 (approved)FLT1, FLT3, FLT4, KDR, KIT, RET, TEK
CEP-32496ChEMBLPhase 2CSF1R, FLT1, FLT3, KDR, KIT, PDGFRB, RET
OSI-632ChEMBLPhase 2FLT1, FLT3, FLT4, KDR, PDGFRB, RET, TEK
TANDUTINIBChEMBLPhase 2CSF1R, FLT1, FLT3, FLT4, KDR, KIT, PDGFRB
IMATINIBChEMBL + PubChemPhase 4 (approved)CDK19, CSF1R, FLT3, KDR, KIT, PDGFRB
BRIGATINIBChEMBLPhase 4 (approved)CSF1R, FLT3, FLT4, KDR, KIT, RET
LENVATINIBChEMBLPhase 4 (approved)FLT1, FLT4, KDR, KIT, PDGFRB, RET
CANERTINIBChEMBLPhase 3FLT1, FLT3, KDR, KIT, PDGFRB, RET
BFH-772ChEMBLPhase 2FLT1, FLT4, KDR, KIT, PDGFRB, RET
CEP-11981ChEMBLPhase 2CSF1R, FLT1, FLT3, KDR, RET, TEK
MK-2461ChEMBLPhase 2FLT1, FLT3, FLT4, KDR, PDGFRB, RET
NERATINIBChEMBL + PubChemPhase 4 (approved)CDK19, CSF1R, FLT3, KDR, TEK
ALVOCIDIBChEMBLPhase 3CDK19, CDK8, CSF1R, FLT3, KIT
BARASERTIBChEMBLPhase 3FLT3, KDR, KIT, PDGFRB, RET
ORANTINIBChEMBLPhase 3FLT1, FLT3, KDR, PDGFRB, RET
SARACATINIBChEMBLPhase 3FLT3, KDR, KIT, PDGFRB, RET
AT-9283ChEMBLPhase 2FLT1, FLT3, FLT4, KDR, RET
DANUSERTIBChEMBLPhase 2FLT3, FLT4, KDR, KIT, RET
ENMD-2076ChEMBLPhase 2CSF1R, FLT3, KDR, KIT, RET