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Cobimetinib (GDC-0973)

Name: Cobimetinib (GDC-0973)
Brand: Selleck Chemicals
SKU: S8041
Rating: 5 (105 reviews)

Synonyms: RG7420,XL518

Catalog No.S8041 Purity:99.86%

Cobimetinib (GDC-0973, RG7420) is a potent and highly selective MEK1 inhibitor with IC50 of 4.2 nM, and showing no significant inhibition when tested against a panel of more than 100 of serine-threonine and tyrosine kinases. Cobimetinib induces apoptosis. Phase 3.

Cobimetinib (GDC-0973) Chemical Structure

CAS No. 934660-93-2

Purity & Quality Control

Batch: Purity: 99.86%

99.86

Cobimetinib (GDC-0973) Related Products

Related Targets	MEK1 MEK1/2 MEK2 MEK5	Click to Expand
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Signaling Pathway

MEK Signaling Pathway

Cell Data

Cell Lines	Assay Type	Incubation Time	Activity Description	PMID
human COLO205 cells	Proliferation assay		Antiproliferative activity against human COLO205 cells expressing B-raf V600E mutant, IC50=8 nM	22315332
human COLO205 cells	Function assay		Inhibition of B-raf V600E mutant in human COLO205 cells assessed as reduction of ERK1/ERK2 phosphorylation, IC50=1.8 nM	22315332
human MDA-MB-231T cells	Function assay	1 h	Inhibition of MEK-mediated ERK T202/Y204 phosphorylation in human MDA-MB-231T cells after 1 hr by immunoblotting， IC50=0.2 nM	24900486
Click to View More Cell Line Experimental Data

Biological Activity

Description

Targets

MEK1 ^[1]
(Cell-free assay)

4.2 nM

In vitro
In vitro	Cobimetinib shows strong activity on cell growth inhibtion in a broad panel of tumor types, particularly in BRAF or KRAS mutant cancer cell lines. In combination with GDC-0941, GDC-0973 results in reduced viability, pathway inhibition, and increased apoptosis in 888MEL and A2058 cells. ^[1]
Experimental Result Images	Methods	Biomarkers	Images	PMID
	Western blot	pERK / ERK / MCL-1 / p-MCL1 / BIM / cleaved PARP p-c-RAF / c-RAF / p-MEK / MEK		27765849
	Growth inhibition assay	Cell viability		28098866

In Vivo
In vivo	In mice bearing BRAFV600E and KRAS mutant tumors, Cobimetinib (10 mg/kg, p.o.) produces antitumor efficacy, and the combination of GDC-0973 and GDC-0941 show improved efficacy. ^[1] In mice bearing drug-resistant A375 xenografts, combination of GDC-0973 and GDC-0941 induces decreased levels of hexokinase II, c-RAF, Ksr and p-MEK protein. ^[2]
Animal Research	Animal Models	Molm-13, Molm-16, MX-1, DLD-1, HCT-116, LoVo, FaDu, 537MEL, A2058, A2058-X1, A375, A375.X1, A427, A549, Calu-6, EBC-1, NCI-H441, NCI-H2122, NCI-H460, NCI-H520.X1, SKOV-3, KP4-X1.1, MiaPaCa-2, 22Rv1, DU-145.X1,S, NCI-H69 xenograft tumors in mice
	Dosages	10 mg/kg
	Administration	p.o.

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-05-22)
NCT05756556	Suspended	Melanoma\|Malignant Melanoma	ImmVira Pharma Co. Ltd	June 30 2024	Phase 2
NCT05768178	Recruiting	Solid Tumor\|Haematological Malignancy\|Melanoma\|Thyroid Cancer Papillary\|Ovarian Neoplasms\|Colorectal Neoplasms\|Laryngeal Neoplasms\|Carcinoma Non-Small-Cell Lung\|Glioma\|Multiple Myeloma\|Erdheim-Chester Disease\|Thyroid Carcinoma Anaplastic	Cancer Research UK\|University of Manchester\|University of Birmingham\|Royal Marsden NHS Foundation Trust\|Hoffmann-La Roche	March 1 2023	Phase 2\|Phase 3
NCT04835805	Active not recruiting	Melanoma	Genentech Inc.	May 13 2021	Phase 1
NCT04109456	Recruiting	Metastatic Melanoma	InxMed (Shanghai) Co. Ltd.	March 16 2020	Phase 1
NCT04007848	Completed	Disease or R Group Histiocytoses	Assistance Publique - Hôpitaux de Paris	July 25 2019	Phase 3
NCT03695380	Completed	OVARIAN CANCER	Hoffmann-La Roche	January 9 2019	Phase 1

References

Chemical Information & Solubility

Molecular Weight	531.31	Formula	C₂₁H₂₁F₃IN₃O₂
CAS No.	934660-93-2	SDF	Download Cobimetinib (GDC-0973) SDF
Smiles	C1CCNC(C1)C2(CN(C2)C(=O)C3=C(C(=C(C=C3)F)F)NC4=C(C=C(C=C4)I)F)O
Storage (From the date of receipt)	3 years-20°Cpowder	Storage of Stock Solutions Aliquot the stock solutions to avoid repeated freeze-thaw cycles	1 year-80°Cin solvent
Storage (From the date of receipt)	3 years-20°Cpowder		1 month-20°Cin solvent

In vitro
Batch:

DMSO : 100 mg/mL ( (188.21 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 47 mg/mL

Water : Insoluble

Molecular Weight Calculator

In vivo Batch: Add solvents to the product individually and in order.				In vivo Formulation Calculator
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	5%DMSO 1 30%PEG300 2 5%Tween80 3 60%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	5.000mg/ml (9.41mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clarified DMSO stock solution to 300 μL PEG300, mix evenly to clarify it; add 50 μL Tween80 to the above system, mix evenly to clarify it; then continue to add 600 μL 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.
Clear solution	5%DMSO 1 Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	5.000mg/ml (9.41mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. 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.

Preparing Stock Solutions

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

Dilution Calculator Molecular Weight Calculator

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

Calculation results:

Working concentration: mg/ml;

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. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

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.

Handling Instructions

Tel: +1-832-582-8158 Ext:3
If you have any other enquiries, please leave a message.

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Frequently Asked Questions

Question 1:
How to reconstitute the inhibitor for in vivo studies?

Answer:
S8041 can be dissolved in 5% DMSO/30% PEG 300/5% Tween 80/ddH2O at 5 mg/ml clearly and it is ok for both oral gavage and injection.

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