Drug Information

Drug (ID: DG00096) and It's Reported Resistant Information

• Name: Quizartinib
• Synonyms: Quizartinib
• Indication:
  In total 2 Indication(s)
  Acute myeloid leukaemia [ICD-11: 2A60]; Phase 3; [1], [2]
  Leukaemia [ICD-11: 2A60-2B33]; Phase 3; [1], [2]
• Drug Resistance Disease(s):
  Disease(s) with Clinically Reported Resistance for This Drug (1 diseases)
  Acute myeloid leukemia [ICD-11: 2A60]; [1], [3]
  Disease(s) with Resistance Information Discovered by Cell Line Test for This Drug (1 diseases)
  Acute myeloid leukemia [ICD-11: 2A60]; [4]
• Target: Fms-like tyrosine kinase 3 (FLT-3); FLT3_HUMAN; [1]
• Formula: C29H32N6O4S
• IsoSMILES: CC(C)(C)C1=CC(=NO1)NC(=O)NC2=CC=C(C=C2)C3=CN4C5=C(C=C(C=C5)OCCN6CCOCC6)SC4=N3
• InChI: 1S/C29H32N6O4S/c1-29(2,3)25-17-26(33-39-25)32-27(36)30-20-6-4-19(5-7-20)22-18-35-23-9-8-21(16-24(23)40-28(35)31-22)38-15-12-34-10-13-37-14-11-34/h4-9,16-18H,10-15H2,1-3H3,(H2,30,32,33,36)
• InChIKey: CVWXJKQAOSCOAB-UHFFFAOYSA-N
• PubChem CID: 24889392
• ChEBI ID: CHEBI:90217
• TTD Drug ID: D07KYT
• DrugBank ID: DB12874

Type(s) of Resistant Mechanism of This Drug

  ADTT: Aberration of the Drug's Therapeutic Target

Drug Resistance Data Categorized by Their Corresponding Diseases

ICD-02: Benign/in-situ/malignant neoplasm

Acute myeloid leukemia [ICD-11: 2A60]

Drug Resistance Data Categorized by Their Corresponding Mechanisms

Aberration of the Drug's Therapeutic Target (ADTT)

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [1], [2]

• Molecule Alteration: Missense mutation; p.F691L
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Identified from the Human Clinical Data
• In Vivo Model: A retrospective survey in conducting clinical studies; Homo sapiens
• Experiment for Molecule Alteration: Subsequent bidirectional sequencing assay
• Experiment for Drug Resistance: Vi-cell XR automated cell viability analysis
• Mechanism Description: Overall, these data support a primarily structural mechanism for AC220 resistance mediated by mutations at F691, D835 and Y842, although further studies are necessary for definitive confirmation. We speculate that the ability to retain inhibitory activity against activation loop substitutions at D835 and Y842 will require a type I FLT3 kinase inhibitor capable of effectively binding to the active, DFG-in conformation of the kinase.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [1]

• Molecule Alteration: Missense mutation; p.D835V
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Identified from the Human Clinical Data
• In Vivo Model: A retrospective survey in conducting clinical studies; Homo sapiens
• Experiment for Molecule Alteration: Subsequent bidirectional sequencing assay
• Experiment for Drug Resistance: Vi-cell XR automated cell viability analysis
• Mechanism Description: Overall, these data support a primarily structural mechanism for AC220 resistance mediated by mutations at F691, D835 and Y842, although further studies are necessary for definitive confirmation. We speculate that the ability to retain inhibitory activity against activation loop substitutions at D835 and Y842 will require a type I FLT3 kinase inhibitor capable of effectively binding to the active, DFG-in conformation of the kinase.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [1]

• Molecule Alteration: Missense mutation; p.D835F
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Identified from the Human Clinical Data
• In Vivo Model: A retrospective survey in conducting clinical studies; Homo sapiens
• Experiment for Molecule Alteration: Subsequent bidirectional sequencing assay
• Experiment for Drug Resistance: Vi-cell XR automated cell viability analysis
• Mechanism Description: Overall, these data support a primarily structural mechanism for AC220 resistance mediated by mutations at F691, D835 and Y842, although further studies are necessary for definitive confirmation. We speculate that the ability to retain inhibitory activity against activation loop substitutions at D835 and Y842 will require a type I FLT3 kinase inhibitor capable of effectively binding to the active, DFG-in conformation of the kinase.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [1], [3]

• Molecule Alteration: Missense mutation; p.D835Y
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Identified from the Human Clinical Data
• In Vivo Model: A retrospective survey in conducting clinical studies; Homo sapiens
• Experiment for Molecule Alteration: Subsequent bidirectional sequencing assay
• Experiment for Drug Resistance: Vi-cell XR automated cell viability analysis
• Mechanism Description: Overall, these data support a primarily structural mechanism for AC220 resistance mediated by mutations at F691, D835 and Y842, although further studies are necessary for definitive confirmation. We speculate that the ability to retain inhibitory activity against activation loop substitutions at D835 and Y842 will require a type I FLT3 kinase inhibitor capable of effectively binding to the active, DFG-in conformation of the kinase.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [5]

• Molecule Alteration: Missense mutation; p.F691
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Identified from the Human Clinical Data
• Experiment for Molecule Alteration: FISH assay; Comparative genomic hybridization array assay; Single nucleotide polymorphism array assay; PCR; Next-generation sequencing assay; Sanger sequencing assay
• Experiment for Drug Resistance: Southern blot analysis; Spectral karyotyping assay
• Mechanism Description: FLT3-mutated patients treated with AC220, sorafenib, or sunitinib commonly relapse with new, resistant FLT3 D835 or F691 mutations within the preexisting FLT3-ITD allele, and one third of the patients who discontinued therapy for any reason also have acquired such mutations.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [5]

• Molecule Alteration: Missense mutation; p.D835
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Identified from the Human Clinical Data
• Experiment for Molecule Alteration: FISH assay; Comparative genomic hybridization array assay; Single nucleotide polymorphism array assay; PCR; Next-generation sequencing assay; Sanger sequencing assay
• Experiment for Drug Resistance: Southern blot analysis; Spectral karyotyping assay
• Mechanism Description: FLT3-mutated patients treated with AC220, sorafenib, or sunitinib commonly relapse with new, resistant FLT3 D835 or F691 mutations within the preexisting FLT3-ITD allele, and one third of the patients who discontinued therapy for any reason also have acquired such mutations.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [4]

• Molecule Alteration: Mutation; p.Y842C
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Revealed Based on the Cell Line Data
• In Vitro Model: MOLM-14 cells; Peripheral blood; Homo sapiens (Human); CVCL_7916
• Experiment for Drug Resistance: MTS assay
• Mechanism Description: The quizartinib IC50 values of cells with Y842C mutation was 106, the quizartinib IC50 value of cells without mutation was 1.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [4]

• Molecule Alteration: Missense mutation; p.D835Y
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Revealed Based on the Cell Line Data
• In Vitro Model: MOLM-14 cells; Peripheral blood; Homo sapiens (Human); CVCL_7916
• Experiment for Drug Resistance: MTS assay
• Mechanism Description: The quizartinib IC50 values of cells with D835Y mutation was 183, the quizartinib IC50 value of cells without mutation was 1.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [4]

• Molecule Alteration: Missense mutation; p.D835V
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Revealed Based on the Cell Line Data
• In Vitro Model: MOLM-14 cells; Peripheral blood; Homo sapiens (Human); CVCL_7916
• Experiment for Drug Resistance: MTS assay
• Mechanism Description: The quizartinib IC50 values of cells with D835V mutation was 563, the quizartinib IC50 value of cells without mutation was 1.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [4]

• Molecule Alteration: Missense mutation; p.D835I
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Revealed Based on the Cell Line Data
• In Vitro Model: MOLM-14 cells; Peripheral blood; Homo sapiens (Human); CVCL_7916
• Experiment for Drug Resistance: MTS assay
• Mechanism Description: The quizartinib IC50 values of cells with D835I mutation was 718, the quizartinib IC50 value of cells without mutation was 1.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [4]

• Molecule Alteration: Missense mutation; p.D835F
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Revealed Based on the Cell Line Data
• In Vitro Model: MOLM-14 cells; Peripheral blood; Homo sapiens (Human); CVCL_7916
• Experiment for Drug Resistance: MTS assay
• Mechanism Description: The quizartinib IC50 values of cells with D835F mutation was 1474, the quizartinib IC50 value of cells without mutation was 1.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [4]

• Molecule Alteration: Frameshift mutation; p.D835Del
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Revealed Based on the Cell Line Data
• In Vitro Model: MOLM-14 cells; Peripheral blood; Homo sapiens (Human); CVCL_7916
• Experiment for Drug Resistance: MTS assay
• Mechanism Description: The quizartinib IC50 values of cells with D835Del mutation was 320, the quizartinib IC50 value of cells without mutation was 1.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [4]

• Molecule Alteration: Mutation; p.F691L
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Revealed Based on the Cell Line Data
• In Vitro Model: MOLM-14 cells; Peripheral blood; Homo sapiens (Human); CVCL_7916
• Experiment for Drug Resistance: MTS assay
• Mechanism Description: The gatekeeper mutation F691L confers resistance to specific FLT3 inhibitors such as quizartinib.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [4]

• Molecule Alteration: Missense mutation; p.F691L
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Identified from the Human Clinical Data
• In Vitro Model: MOLM-14 cells; Peripheral blood; Homo sapiens (Human); CVCL_7916
• In Vitro Model: MV4-11 cells; Peripheral blood; Homo sapiens (Human); CVCL_0064
• Experiment for Drug Resistance: MTS assay
• Mechanism Description: The multiple mutations that can confer resistance to quizartinib and pexidartinib. The gatekeeper mutation F691L was the most common mutation in all protocols involving quizartinib; it was rather frequent even with pexidartinib alone.

Key Molecule: Receptor-type tyrosine-protein kinase FLT3 (FLT3) [4]

• Molecule Alteration: Missense mutation; p.F691L
• Resistant Disease: Acute myeloid leukemia [ICD-11: 2A60.0]
• Experimental Note: Identified from the Human Clinical Data
• In Vitro Model: MOLM-14 cells; Peripheral blood; Homo sapiens (Human); CVCL_7916
• In Vitro Model: MV4-11 cells; Peripheral blood; Homo sapiens (Human); CVCL_0064
• Experiment for Drug Resistance: MTS assay
• Mechanism Description: The multiple mutations that can confer resistance to quizartinib and pexidartinib. The gatekeeper mutation F691L was the most common mutation in all protocols involving quizartinib; it was rather frequent even with pexidartinib alone.

References

• Ref 1: Validation of ITD mutations in FLT3 as a therapeutic target in human acute myeloid leukaemia. Nature. 2012 Apr 15;485(7397):260-3. doi: 10.1038/nature11016.
• Ref 2: The secondary FLT3-ITD F691L mutation induces resistance to AC220 in FLT3-ITD+ AML but retains in vitro sensitivity to PKC412 and Sunitinib. Leukemia. 2013 Jun;27(6):1416-8. doi: 10.1038/leu.2013.14. Epub 2013 Jan 16.
• Ref 3: Selective FLT3 inhibition of FLT3-ITD+ acute myeloid leukaemia resulting in secondary D835Y mutation: a model for emerging clinical resistance patterns. Leukemia. 2012 Jul;26(7):1462-70. doi: 10.1038/leu.2012.52. Epub 2012 Feb 22.
• Ref 4: Combating drug resistance in acute myeloid leukaemia by drug rotations: the effects of quizartinib and pexidartinib .Cancer Cell Int. 2021 Apr 8;21(1):198. doi: 10.1186/s12935-021-01856-5. 10.1186/s12935-021-01856-5
• Ref 5: Mutation position within evolutionary subclonal architecture in AML. Semin Hematol. 2014 Oct;51(4):273-81. doi: 10.1053/j.seminhematol.2014.08.004. Epub 2014 Aug 7.