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Batch: Purity: 99.99%

99.99

Related Targets	EGFR VEGFR FGFR c-Met Src MEK CSF-1R FLT3 HER2 c-Kit
Other PDGFR Inhibitors	CP-673451 Orantinib (SU6668) Tyrphostin AG 1296 Trapidil PP121 AZD2932 Sennoside B Tyrphostin AG1433 AG 1295 N-(p-Coumaroyl) Serotonin

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Incubation Time	Activity Description	PMID
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit D816V mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.008 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of PDGFRalpha V561D/D842V mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.01 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 11 deletion (557 to 558 residues) and D816H mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.017 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 11 deletion (557 to 558 residues) and D820A mutant and D820A mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.019 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of TEL-fused PDGFRbeta (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.022 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 11 deletion (557 to 558 residues) and A829P mutant and Y823D mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.028 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit V560D/D816H mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.029 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of TEL-fused PDGFRalpha (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.034 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 11 deletion (557 to 558 residues) and N822K mutant and Y823D mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.034 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit V560D mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.042 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 9 AY502 to 503 insertion and D816 mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.069 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 11 deletion (557 to 558 residues) mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.078 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 11 deletion (560 to 578 residues) mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.117 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 9 AY502 to 503 insertion mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.167 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 11 deletion (557 to 558 residues) and V654A mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.292 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit V560D/V654A mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.427 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 9 AY502 to 503 insertion and V654 mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.751 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of Kit exon 11 deletion (557 to 558 residues) and D816H mutant and T670I mutant (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 0.86 μM.	30204441
BA/F3 cells	Cytotoxicity assay	72 h	Cytotoxicity in mouse parental BA/F3 cells incubated for 72 hrs by MTS assay, GI50 = 4.075 μM.	30204441
BA/F3 cells	Growth inhibiton assay	72 h	Inhibition of KDR (unknown origin) transfected in mouse BA/F3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTS assay, GI50 = 4.952 μM.	30204441
Click to View More Cell Line Experimental Data

Solubility

In vitro
Batch:

DMSO : 100 mg/mL (200.57 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 1.5 mg/mL

Water : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	2%DMSO 1 40%PEG300 2 2%Tween80 3 56%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	4.000mg/ml (8.02mM)	Taking the 1 mL working solution as an example, add 20 μL of 200 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 20 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 560 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

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Chemical Information, Storage & Stability

Molecular Weight	498.56	Formula	C₂₆H₂₇FN₁₀	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	1703793-34-3	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	BLU-285			SMILES	CC(C1=CC=C(C=C1)F)(C2=CN=C(N=C2)N3CCN(CC3)C4=NC=NN5C4=CC(=C5)C6=CN(N=C6)C)N

Read more about storage stability stock solution CAS number SMILES

Mechanism of Action

Targets/IC₅₀/Ki	PDGFRα (D842V) 0.5 nM c-Kit (D816V) 0.5 nM
In vitro	Avapritinib (BLU-285) is a selective oral inhibitor that targets KIT Exon 17 and PDGFRα D842 activation loop mutants. Cellular assays measuring inhibition of KIT mutant autophosphorylation confirm its activity against the KIT D816 mutants D816V (HMC1.2 cells, IC50 = 3 nM) and D816Y (P815 cells, IC50 = 22 nM) as well as other KIT Exon 17 mutants such as N822K (Kasumi cells, IC50 = 40 nM) found in treatment-refractory GIST.
In vivo	In vivo, Avapritinib (BLU-285) is a well-tolerated, orally bioavailable agent that achieves dose dependent tumor growth inhibition in a D816Y-driven xenograft model. A PK-PD-efficacy relationship with this compound has been established demonstrating that tumor regression results from >90% target suppression and is observed with 30 mg/kg once daily dosing. With potent activity against PDGFRα D842V and KIT Exon 17 mutants, it targets previously unaddressed genomic drivers of disease and provides promise for the treatment of PDGFRα D842V-driven GIST(gastrointestinal stromal tumor) or SM(systemic mastocytosis), where more than 90% of patients carry the KIT D816V mutation. Besides single agent activity, the highly selective BLU-285 offers an opportunity for combination with other agents in GIST to cover the entirety of KIT primary and resistance mutants.
References	[1] http://cancerres.aacrjournals.org/content/75/15_Supplement/791 [2] https://aacrjournals.org/cancerres/article/75/15_Supplement/791/605110/Abstract-791-BLU-285-the-first-selective-inhibitor

Applications

Methods	Biomarkers	Images	PMID
Western blot	PDGFRA / c-KIT / Wee1 / Cdc2 / PARP / γH2AX / CyclinD1 / β-actin		33320833

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-08-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT06221683	RECRUITING	AML, Childhood; Acute Myeloid Leukemia	Children's Hospital of Soochow University	2024-01-01	PHASE2
NCT07131059	RECRUITING	AML, Adult	Institute of Hematology & Blood Diseases Hospital, China	2024-05-11
NCT06748001	RECRUITING	Mastocytosis, Systemic	Blueprint Medicines Corporation	2024-11-28	PHASE4
NCT03731260	ACTIVE_NOT_RECRUITING	Indolent Systemic Mastocytosis	Blueprint Medicines Corporation	2019-04-16	PHASE2
NCT07028073	RECRUITING	Acute Myeloid Leukemia With T(8;21)(Q22;Q22); Acute Myeloid Leukemia With T(16;16)(P13;Q22); KIT Gene Mutation; Avapritinib	The First Affiliated Hospital of Soochow University	2025-05-15	PHASE1; PHASE2
NCT06327685	RECRUITING	Systemic Mastocytosis With an Associated Hematologic Neoplasm	H. Lee Moffitt Cancer Center and Research Institute	2024-03-13	PHASE1

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Avapritinib (BLU-285) PDGFRα inhibitor

Chemical Structure

Molecular Weight: 498.56