1. JAK/STAT Signaling Protein Tyrosine Kinase/RTK Apoptosis
  2. EGFR Apoptosis
  3. CL-387785

CL-387785  (Synonyms: EKI-785; WAY-EKI 785)

Cat. No.: HY-10325 Purity: 99.11%
Handling Instructions Technical Support

CL-387785 (EKI-785; WAY-EKI 785) is an orally active EGFR inhibitor with an IC50 of 370 pM. CL-387785 inhibits EGF-stimulated EGFR autophosphorylation with an IC50 of approximately 5 nM. CL-387,785 exerts selective inhibition on cell lines overexpressing EGFR or c-erbB-2, whereas it shows weak inhibitory effects on cell lines with low expression of these two receptors. CL-387785 effectively induces cell cycle arrest and apoptosis. CL-387785 can be used for the research of non-small cell lung cancer and autosomal recessive polycystic kidney disease.

For research use only. We do not sell to patients.

CL-387785

CL-387785 Chemical Structure

CAS No. : 194423-06-8

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Customer Review

Based on 2 publication(s) in Google Scholar

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Description

CL-387785 (EKI-785; WAY-EKI 785) is an orally active EGFR inhibitor with an IC50 of 370 pM. CL-387785 inhibits EGF-stimulated EGFR autophosphorylation with an IC50 of approximately 5 nM. CL-387,785 exerts selective inhibition on cell lines overexpressing EGFR or c-erbB-2, whereas it shows weak inhibitory effects on cell lines with low expression of these two receptors. CL-387785 effectively induces cell cycle arrest and apoptosis. CL-387785 can be used for the research of non-small cell lung cancer and autosomal recessive polycystic kidney disease[1][2][3].

IC50 & Target[1]

EGFR

370 pM (IC50)

Cellular Effect
Cell Line Type Value Description References
A-431 IC50
0.079 μM
Compound: 1
Inhibition of cell growth of human epidermoid carcinoma xenograft (A431) model using cell based assay
Inhibition of cell growth of human epidermoid carcinoma xenograft (A431) model using cell based assay
[PMID: 11495584]
A-431 IC50
5 nM
Compound: 14, CL-387785
Inhibition of EGF-induced autophosphorylation of EGFR in human A431 cells
Inhibition of EGF-induced autophosphorylation of EGFR in human A431 cells
[PMID: 22621397]
BaF3 IC50
1.06 μM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring EGFR E746_A750/T790M mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring EGFR E746_A750/T790M mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
BaF3 IC50
2 nM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring EGFR E746_A750 mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring EGFR E746_A750 mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
BaF3 IC50
2 nM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring EGFR vIII mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring EGFR vIII mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
BaF3 IC50
2.69 μM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring EGFR L858R/T790M/C797S triple mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring EGFR L858R/T790M/C797S triple mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
BaF3 IC50
2.81 μM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring EGFR A767_V769dupASV mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring EGFR A767_V769dupASV mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
BaF3 IC50
26 nM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring wildtype ERBB2 assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring wildtype ERBB2 assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
BaF3 IC50
3.17 μM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring EGFR E746_A750/T790M/C797S mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring EGFR E746_A750/T790M/C797S mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
BaF3 IC50
4 nM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring EGFR L858R mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring EGFR L858R mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
BaF3 IC50
75 nM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring ERBB2 Ins 774YVMA mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring ERBB2 Ins 774YVMA mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
BaF3 IC50
8 nM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring ERBB2 Ins G776V,C mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring ERBB2 Ins G776V,C mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
BaF3 IC50
> 3.3 μM
Compound: CL-387,785
Antiproliferative activity against mouse BaF3 cells harboring EGFR L858R/T790M double mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against mouse BaF3 cells harboring EGFR L858R/T790M double mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
Calu-3 IC50
100 nM
Compound: CL-387,785
Antiproliferative activity against human Calu-3 cells harboring ERBB2 amp mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against human Calu-3 cells harboring ERBB2 amp mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
HCC827 IC50
2 nM
Compound: CL-387,785
Antiproliferative activity against human HCC827 cells harboring EGFR Del E746_A750 mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against human HCC827 cells harboring EGFR Del E746_A750 mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
NCI-H1975 IC50
850 nM
Compound: CL-387,785
Antiproliferative activity against human NCI-H1975 cells harboring EGFR L858R/T790M mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against human NCI-H1975 cells harboring EGFR L858R/T790M mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
NCI-H3255 IC50
23 nM
Compound: CL-387,785
Antiproliferative activity against human NCI-H3255 cells harboring EGFR L858R mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against human NCI-H3255 cells harboring EGFR L858R mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
NIH3T3 IC50
2.5 nM
Compound: 20
Inhibition of EGF stimulated human erbB1 autophosphorylation in NIH3T3 cells
Inhibition of EGF stimulated human erbB1 autophosphorylation in NIH3T3 cells
[PMID: 16480284]
PC-9 IC50
2 nM
Compound: CL-387,785
Antiproliferative activity against human PC-9 cells harboring EGFR Del E746_A750 mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
Antiproliferative activity against human PC-9 cells harboring EGFR Del E746_A750 mutant assessed as inhibition of cell growth incubated for 72 hrs by MTS assay
[PMID: 20033049]
SK-BR-3 IC50
0.017 μM
Compound: 1
Inhibition of cell growth of SKBr3 cell lines using cell-based assay
Inhibition of cell growth of SKBr3 cell lines using cell-based assay
[PMID: 11495584]
SW-620 IC50
1.5 μM
Compound: 1
Inhibition of cell growth of SW620 cell lines using cell-based assay
Inhibition of cell growth of SW620 cell lines using cell-based assay
[PMID: 11495584]
Sf9 IC50
0.2 μM
Compound: EKI-785
TP_TRANSPORTER: efflux of Hoechst33342 in BCRP-expressing Sf9 cells
TP_TRANSPORTER: efflux of Hoechst33342 in BCRP-expressing Sf9 cells
[PMID: 15155841]
In Vitro

CL-387,785 (30-1000 nM; 3 days) induces G0/G1 cell cycle arrest in A431 and SK-BR-3 cells at concentrations of 300-1000 nM after 3 days of incubation, with minimal apoptosis at higher doses[2].
CL-387,785 (0.1-30 μM; 48 h) inhibits the growth of gefitinib-resistant Ba/F3-EGFRL858R-T790M cells with a cellular IC50 of ~1 μmol/L[3].
CL-387,785 (3 μM; 24 h) induces significant apoptosis in gefitinib-resistant Ba/F3-EGFRL858R-T790M cells and sensitive Ba/F3-EGFRL858R cells[3].
CL-387,785 (0.3-10 μM; 6 h) inhibits phosphorylation of EGFR and its downstream signaling targets STAT5, AKT, and ERK 1/2 in gefitinib-resistant Ba/F3-EGFRL858R-T790M cells with an IC50 of ~1 μmol/L[3].
CL-387,785 (0.1-3 μM; 6 h) completely inhibits phosphorylation of EGFR and its downstream signaling targets STAT5, AKT, and ERK 1/2 in gefitinib-resistant H1975 lung cancer cells[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Cycle Analysis[2]

Cell Line: A431 cells; SK-BR-3 cells
Concentration: 30, 300, 1000 nM
Incubation Time: 3 days
Result: Increased the percentage of A431 cells in G0/G1 phase to 73% from 56% in untreated controls, with corresponding decreases in S phase (16% vs 28%) and G2/M phase (8% vs 15%) at 300 nM.
Increased SK-BR-3 cells in G0/G1 phase to 82% and 84%, respectively, from 63% in controls, with S phase reduced to 4% and 4%, and G2/M phase reduced to 3% and 3% at 300 nM and 1000 nM.
Induced 7% apoptotic cells in A431 cells at 1000 nM, and 10-11% apoptotic cells in SK-BR-3 cells at 300-1000 nM.

Apoptosis Analysis[3]

Cell Line: Ba/F3-L858R, Ba/F3-L858R-T790M stable cell lines
Concentration: 3 μM
Incubation Time: 24 h
Result: Induced high levels of apoptosis in both Ba/F3-L858R and gefitinib-resistant Ba/F3-L858R-T790M cells, with apoptosis rates comparable to those induced by gefitinib in Ba/F3-L858R cells.

Western Blot Analysis[3]

Cell Line: Ba/F3-L858R, Ba/F3-L858R-T790M stable cell lines
Concentration: 0.3, 1, 3 and 10 μM
Incubation Time: 6 h
Result: Potently inhibited phosphorylation of EGFR, STAT5, AKT, and ERK 1/2 in both Ba/F3-L858R and gefitinib-resistant Ba/F3-L858R-T790M cells, with an IC50 of ~1 μM for inhibition of all examined phosphorylated proteins in Ba/F3-L858R-T790M cells.

Apoptosis Analysis[3]

Cell Line: H1975 (lung adenocarcinoma, EGFR L858R-T790M mutant) cell line
Concentration: 1 μM
Incubation Time: 48 h
Result: Induced a mean apoptotic cell percentage of 42.1% in H1975 cells, a statistically significant increase compared to control (8.84%) and gefitinib-treated (8.73%) cells.

Western Blot Analysis[3]

Cell Line: H1975 (lung adenocarcinoma, EGFR L858R-T790M mutant) cell line
Concentration: 0.3, 1, 3 and 10 μM
Incubation Time: 6 h
Result: Completely inhibited phosphorylation of EGFR, STAT5, AKT, and ERK 1/2 in H1975 cells at 1 μM.
In Vivo

CL-387785 (25-100 mg/kg; intraperitoneal injection; once every 3 days; days 18-46) dose-dependently reduces collecting duct cyst formation, improves renal function, attenuates biliary abnormalities, and prolongs survival in autosomal recessive polycystic kidney disease mice[1].
CL-387785 (20-80 mg/kg; i.p., p.o.; intermittent administration with repeated dosing for 10 consecutive days) inhibits the growth of EGF-R-overexpressing A431 tumors in nude mice, and the tumors respond to the repeated dosing regimen[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Balb/c-bpk/bpk (postnatal)[1]
Dosage: 25 mg/kg; 50 mg/kg; 60 mg/kg; 80 mg/kg; 90 mg/kg (short-term and long-term survival studies); 100 mg/kg
Administration: i.p.; every 3 days; 6 total doses (short-term); every 3 days from postnatal day 7 to postnatal day 46 (long-term survival)
Result: Effectively alleviated the cyst growth and bile duct lesions in the ARPKD model mice, improved renal function, and significantly prolonged their lifespan.
Animal Model: Athymic nu/nu (female)[2]
Dosage: 80 mg/kg (i.p., intermittent schedule); 20 mg/kg (i.p., daily x10 days, repeated); 80 mg/kg (p.o., daily x10 days, repeated)
Administration: i.p. (days 1, 5, 9, 21, 25, 29); i.p. (daily on days 1 through 10 and days 21 through 30); p.o. (daily on days 1 through 10 and days 21 through 30)
Result: Produced significant tumor growth inhibition.
Showed tumor regrowth after initial 10-day treatment course, but tumors responded to a second 10-day treatment course.
Molecular Weight

381.23

Formula

C18H13BrN4O

CAS No.
Appearance

Solid

Color

Light yellow to yellow

SMILES

O=C(NC1=CC2=C(NC3=CC=CC(Br)=C3)N=CN=C2C=C1)C#CC

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (262.31 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.6231 mL 13.1154 mL 26.2309 mL
5 mM 0.5246 mL 2.6231 mL 5.2462 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • Molarity Calculator

  • Dilution Calculator

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This equation is commonly abbreviated as: C1V1 = C2V2

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In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (6.56 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% Corn Oil

    Solubility: ≥ 2.5 mg/mL (6.56 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
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The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.6231 mL 13.1154 mL 26.2309 mL 65.5772 mL
5 mM 0.5246 mL 2.6231 mL 5.2462 mL 13.1154 mL
10 mM 0.2623 mL 1.3115 mL 2.6231 mL 6.5577 mL
15 mM 0.1749 mL 0.8744 mL 1.7487 mL 4.3718 mL
20 mM 0.1312 mL 0.6558 mL 1.3115 mL 3.2789 mL
25 mM 0.1049 mL 0.5246 mL 1.0492 mL 2.6231 mL
30 mM 0.0874 mL 0.4372 mL 0.8744 mL 2.1859 mL
40 mM 0.0656 mL 0.3279 mL 0.6558 mL 1.6394 mL
50 mM 0.0525 mL 0.2623 mL 0.5246 mL 1.3115 mL
60 mM 0.0437 mL 0.2186 mL 0.4372 mL 1.0930 mL
80 mM 0.0328 mL 0.1639 mL 0.3279 mL 0.8197 mL
100 mM 0.0262 mL 0.1312 mL 0.2623 mL 0.6558 mL
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  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Product Name:
CL-387785
Cat. No.:
HY-10325
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