AZD8931 (Sapitinib)

Catalog No.S2192

AZD8931 (Sapitinib) is a reversible, ATP competitive inhibitor of EGFR, ErbB2 and ErbB3 with IC50 of 4 nM, 3 nM and 4 nM in cell-free assays, more potent than Gefitinib or Lapatinib against NSCLC cell, 100-fold more selective for the ErbB family than MNK1 and Flt. Phase 2.

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AZD8931 (Sapitinib) Chemical Structure

AZD8931 (Sapitinib) Chemical Structure
Molecular Weight: 473.93

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Product Description

Biological Activity

Description AZD8931 (Sapitinib) is a reversible, ATP competitive inhibitor of EGFR, ErbB2 and ErbB3 with IC50 of 4 nM, 3 nM and 4 nM in cell-free assays, more potent than Gefitinib or Lapatinib against NSCLC cell, 100-fold more selective for the ErbB family than MNK1 and Flt. Phase 2.
Targets ErbB2 [1]
(Cell-free assay)
EGFR [1]
(Cell-free assay)
ErbB3 [1]
(Cell-free assay)
IC50 3 nM 4 nM 4 nM
In vitro AZD8931 shows different potency to NSCLC and SCCHN cell lines. AZD8931 has high sensitivity to PC-9 cells (EGFR activating mutation) with GI50 of 0.1 nM and low activity to NCI-1437 cells with GI50 above 10 μM. AZD8931 exhibits more potency against phospho-EGFR, phospho-erbB2 and phospho-erbB3 than either lapatinib or gefitinib in PE/CA-PJ41, PE/CA-PJ49, DOK and FaDu cells. [1]
In vivo AZD8931 reveals antitumor activity in BT474c, Calu-3, LoVo, FaDu and PC-9 xenografts. AZD8931 could reduce p-Akt, Ki67 expression and p-ERK in BT474c xenografts following acute treatment. AZD8931 also causes induction of the M30 apoptosis marker. Furthermore, AZD8931 shows greater proapoptotic effect compared with gefitinib and lapatinib in LoVo xenografts. [1]

Protocol(Only for Reference)

Kinase Assay:


Isolated kinase assays The intracellular kinase domains of human EGFR and erbB2 are cloned and expressed in the baculovirus/Sf21 system. The inhibitory activity of AZD8931 is determined with ATP at Km concentrations (0.4 mM for erbB2 and 2 mM for EGFR) using the ELISA method.

Cell Assay:


Cell lines Head and neck tumor cell lines (KYSE-30, OE21, PE/CA-PJ15, PE/CA-PJ34 (clone C12), PE/CA-PJ41 (clone D2), PE/CA-PJ49, DOK, Detroit562, RPMI2650, SCC-4, SCC-9, SCC-25, CAL 27, SW579, FaDu, Hs 840.T, KB, KYSE-450, and HEp-2, HN5) and NSCLC cell lines (PC-9,
Concentrations 0.001-10 μM
Incubation Time 96 hours

To determine the antiproliferative activity against cell lines grown in vitro, AZD8931 is tested in a panel of NSCLC and SCCHN cell lines. Cells are incubated for 96 hours with AZD8931 (0.001-10 μM). Viable cell number is determined by 4 hours of incubation with MTS Colorimetric Assay reagent and absorbance measured at 490 nm on a spectrophotometer.

Animal Study:


Animal Models BT474c, Calu-3, LoVo, FaDu and PC-9 xenografts in Swiss nude or severe combined immunodeficient (Charles River) mice.
Formulation Suspended in a 1% (v/v) solution of polyoxyethylenesorbitan monooleate (Tween 80) in deionized water
Dosages 6.25-50 mg/kg
Administration Gavage

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)

SpeciesMouseRatRabbitGuinea pigHamsterDog
Weight (kg)
Body Surface Area (m2)0.0070.0250.
Km factor36128520
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Rat dose (mg/kg) = mouse dose (22.4 mg/kg) ×  mouse Km(3)  = 11.2 mg/kg
rat Km(6)


[1] Hickinson DM, et al. Clin Cancer Res, 2010, 16(4), 1159-1169.

Clinical Trial Information( data from, updated on 2016-07-30)

NCT Number Recruitment Conditions Sponsor
Start Date Phases
NCT01862003 Recruiting Metastatic Colorectal Cancer|Recurrent Colorectal Cancer University College, London|Cancer Research UK|AstraZeneca  ...more University College, London|Cancer Research UK|AstraZeneca|National Institute for Health Research, United Kingdom May 2014 Phase 1
NCT02117167 Recruiting Non-small Cell Lung Cancer Metastatic UNICANCER|IFCT|Fondation ARC|AstraZeneca April 2014 Phase 2
NCT02299999 Recruiting Metastatic Breast Cancer UNICANCER|Fondation ARC|AstraZeneca April 2014 Phase 2
NCT01596530 Terminated Breast Neoplasm AstraZeneca June 2012 Phase 1
NCT01579578 Terminated Metastatic, Gastric or Gastro-oesophageal Junction, Cancer AstraZeneca April 2012 Phase 2

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Chemical Information

Download AZD8931 (Sapitinib) SDF
Molecular Weight (MW) 473.93


CAS No. 848942-61-0
Storage 3 years -20℃powder
2 years -80℃in solvent
Synonyms N/A
Solubility (25°C) * In vitro DMSO 40 mg/mL (84.4 mM)
Water <1 mg/mL
Ethanol <1 mg/mL
In vivo 30% PEG400+0.5% Tween80+5% propylene glycol 5 mg/mL
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Chemical Name 2-(4-(4-(3-chloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-N-methylacetamide

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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