Name: Birabresib (OTX015)
Brand: Selleck Chemicals
SKU: S7360
Availability: InStock
Rating: 5 (73 reviews)

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Quality Control

Batch: Purity: 99.81%

99.81

Related Targets	HDAC JAK Histone Methyltransferase PKC PARP HIF PRMT EZH2 AMPK Histone Acetyltransferase
Other BET Inhibitors	Pelabresib (CPI-0610) ZEN-3694 (BET-IN-19) Molibresib (I-BET-762) Mivebresib (ABBV-075) INCB054329 I-BET151 (GSK1210151A) Apabetalone (RVX-208) AZD5153 6-hydroxy-2-naphthoic acid CPI-203 I-BRD9

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Concentration	Incubation Time	Activity Description	PMID
Rosetta2 DE3	Function assay		30 mins	Displacement of FAM-labeled ZBA248 from BRD3 BD2 (306 to 417 amino acid residues) (unknown origin) expressed in Rosetta2 DE3 cells after 30 mins by fluorescence polarization assay, Ki=0.004μM.	26080064
Rosetta2 DE3	Function assay		30 mins	Displacement of FAM-labeled ZBA248 from BRD2 BD2 (349 to 460 amino acid residues) (unknown origin) expressed in Rosetta2 DE3 cells after 30 mins by fluorescence polarization assay, Ki=0.0054μM.	26080064
Rosetta2 DE3	Function assay		30 mins	Displacement of FAM-labeled ZBA248 from BRD4 BD2 (333 to 460 amino acid residues) (unknown origin) expressed in Rosetta2 DE3 cells after 30 mins by fluorescence polarization assay, Ki=0.006μM.	26080064
MM1S	Antiproliferative assay		72 hrs	Antiproliferative activity against human MM1S cells after 72 hrs by CCK8 or SRB assay, IC50=0.0063μM.	31490070
Rosetta2 DE3	Function assay		30 mins	Displacement of FAM-labeled ZBA248 from BRD3 BD1 (24 to 144 amino acid residues) (unknown origin) expressed in Rosetta2 DE3 cells after 30 mins by fluorescence polarization assay, Ki=0.0107μM.	26080064
Rosetta2 DE3	Function assay		30 mins	Displacement of FAM-labeled ZBA248 from BRD4 BD1 (44 to 168 amino acid residues) (unknown origin) expressed in Rosetta2 DE3 cells after 30 mins by fluorescence polarization assay, Ki=0.0109μM.	26080064
Rosetta2 DE3	Function assay		30 mins	Displacement of FAM-labeled ZBA248 from BRD2 BD1 (72 to 205 amino acid residues) (unknown origin) expressed in Rosetta2 DE3 cells after 30 mins by fluorescence polarization assay, Ki=0.0166μM.	26080064
Rosetta2 DE3	Function assay		30 mins	Displacement of FAM-labeled ZBA248 from BRD4 BD2 (333 to 460 amino acid residues) (unknown origin) expressed in Rosetta2 DE3 cells after 30 mins by fluorescence polarization assay, IC50=0.0166μM.	26080064
MV4-11	Antiproliferative assay		4 days	Antiproliferative activity against human MV4-11 cells assessed as cell growth inhibition after 4 days by CCK8 assay, IC50=0.0176μM.	31461688
MM1S	Antiproliferative assay		4 days	Antiproliferative activity against human MM1S cells assessed as cell growth inhibition after 4 days by CCK8 assay, IC50=0.0227μM.	31461688
Rosetta2 DE3	Function assay		30 mins	Displacement of FAM-labeled ZBA248 from BRD4 BD1 (44 to 168 amino acid residues) (unknown origin) expressed in Rosetta2 DE3 cells after 30 mins by fluorescence polarization assay, IC50=0.0255μM.	26080064
THP1	Antiproliferative assay			Antiproliferative activity against human THP1 cells, IC50=0.033μM.	28939121
BL21(DE3)	Function assay		4 hrs	Displacement of 5-FITC labelled (+)-JQ1 from His6-tagged human BRD4 bromodomain 1 expressed in Escherichia coli BL21(DE3) )-codon plus-RIL cells incubated for 4 hrs in dark condition by fluorescence anisotropy binding assay, IC50=0.0343μM.	31490070
MV4-11	Antiproliferative assay		72 hrs	Antiproliferative activity against human MV4-11 cells assessed as reduction in cell viability measured after 72 hrs by Celltitre-glo luminescence assay, IC50=0.0463μM.	32208600
TY82	Antiproliferative assay			Antiproliferative activity against human TY82 cells, IC50=0.067μM.	28939121
insect cells	Function assay			Inhibition of recombinant full length human N-terminal His6-tagged BRD4 (2 to 1362 residues) expressed in baculovirus infected insect cells using histone H4 peptide as substrate by alpha screen assay, IC50=0.092μM.	30529546
LNCAP	Antiproliferative assay			Antiproliferative activity against human LNCAP cells, IC50=0.1114μM.	29758518
Kasumi-1	Antiproliferative assay		72 hrs	Antiproliferative activity against human Kasumi-1 cells assessed as reduction in cell viability measured after 72 hrs by Celltitre-glo luminescence assay, IC50=0.135μM.	32208600
MM1S	Antiproliferative assay		72 hrs	Antiproliferative activity against human MM1S cells assessed as reduction in cell viability measured after 72 hrs by Celltitre-glo luminescence assay, IC50=0.137μM.	32208600
RS4:11	Antiproliferative assay		72 hrs	Antiproliferative activity against human RS4:11 cells assessed as reduction in cell viability measured after 72 hrs by Celltitre-glo luminescence assay, IC50=0.416μM.	32208600
MV4-11	Cell cycle assay	125 nM	24 hrs	Cell cycle arrest in human MV4-11 cells assessed as increase in accumulation at G1-phase at 125 nM measured after 24 hrs by propidium iodide staining based flow cytometry	32208600
MV4-11	Function assay	500 nM	6 to 24 hrs	Inhibition of BRD4 in human MV4-11 cells assessed as reduction in c-Myc expression at 500 nM measured after 6 to 24 hrs by Western blot analysis	32208600
MV4-11	Function assay	31.25 to 125 nM	6 hrs	Inhibition of BRD4 in human MV4-11 cells assessed as reduction in c-Myc mRNA level at 31.25 to 125 nM measured after 6 hrs by SYBR green dye based RT-qPCR analysis	32208600
MV4-11	Function assay	31.25 to 125 nM	6 hrs	Inhibition of BRD4 in human MV4-11 cells assessed as reduction in BCL2 mRNA level at 31.25 to 125 nM measured after 6 hrs by SYBR green dye based RT-qPCR analysis	32208600
MV4-11	Function assay	31.25 to 125 nM	6 hrs	Inhibition of BRD4 in human MV4-11 cells assessed as reduction in CDK6 mRNA level at 31.25 to 125 nM measured after 6 hrs by SYBR green dye based RT-qPCR analysis	32208600
TY82	Antiproliferative assay		72 hrs	Antiproliferative activity against human TY82 cells after 72 hrs by CCK8 or SRB assay	31490070
MV4-11	Function assay	10 to 100 nM	24 hrs	Inhibition of BRD4 in human MV4-11 cells assessed as reduction in c-Myc mRNA level at 10 to 100 nM after 24 hrs by real time qPCR analysis	31490070
MV4-11	Antiproliferative assay		72 hrs	Antiproliferative activity against human MV4-11 cells after 72 hrs by CCK8 or SRB assay	31490070
MV4-11	Apoptosis assay		24 hrs	Induction of apoptosis in human MV4-11 cells after 24 hrs by Annexin V staining based assay	31490070
RKO	Cell cycle assay	100 nM	24 hrs	Induction of cell cycle arrest in human RKO cells assessed as increase in accumulation at G1 phase at 100 nM after 24 hrs by propidium iodide staining based flow cytometric analysis	31490070
Click to View More Cell Line Experimental Data

Solubility

In vitro
Batch:

DMSO : 98 mg/mL (199.19 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 11 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.
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)

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

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Average weight of animals: g

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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
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Chemical Information, Storage & Stability

Molecular Weight	491.99	Formula	C₂₅H₂₂ClN₅O₂S	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	202590-98-5	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	MK 8628			Smiles	CC1=C(SC2=C1C(=NC(C3=NN=C(N32)C)CC(=O)NC4=CC=C(C=C4)O)C5=CC=C(C=C5)Cl)C

Mechanism of Action

Features	Orally bioavailable BRD2/3/4-selective inhibitor that has been tested in Phase I clinical trials for treatment of Haematological Malignancies.
Targets/IC₅₀/Ki	BRDs (Cell-free assay) 10-19 nM(EC50)
In vitro	Birabresib (OTX015) inhibits the binding of BRD2, BRD3, and BRD4 to AcH4 with IC50 ranging from 92 to 112 nM, and inhibits the growth of a variety of human cancer cell lines with GI50 ranging from 60 to 200 nM. It results in rapid down-regulation of c-MYC expression, and shows synergistic anti-proliferative effects in combination with ALK inhibitors in ALKpos ALCL cell lines.
Kinase Assay	TR-FRET Assay
Kinase Assay	To assess binding of Birabresib (OTX015) to BRD2, BRD3, and BRD4, BRD-expressing CHO cell lysate (from CHO cells transfected with expression plasmids for Flag-tagged BRD2, BRD3, or BRD4 or vector alone), europium-conjugated anti-Flag antibody, XL-665-conjugated streptavidin, and biotinylated it are incubated at room temperature for 0.2 to 2 h. Fluorescence is measured by TR-FRET using an EnVision 2103 Multilabel Reader and EC50 for binding is calculated by nonlinear regression using PRISM version 5.02.
In vivo	Birabresib (OTX015) significantly inhibits the growth of Ty82 BRD-NUT midline carcinoma tumors in nude mice by 79% at 100 mg/kg qd and 61% at 10 mg/kg bid, respectively, when administered orally (p.o.).
References	[1] http://mct.aacrjournals.org/content/12/11_Supplement/C244.short [2] http://mct.aacrjournals.org/content/12/11_Supplement/A219.short

Applications

Methods	Biomarkers	Images	PMID
Western blot	ZO-1 / Vimentin JAK2 / p-STAT5 / STAT5 / p-STAT3 / c-Myc / PIM1 / CDK6 / HEXIM1 / p27 / p21 / Bcl-xL / γH2AX c-Myc BRD4		27980063
Immunofluorescence	Vimentin BRD4		27980063

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT02698176	Terminated	NUT Midline Carcinoma (NMC)\|Triple Negative Breast Cancer (TNBC)\|Non-small Cell Lung Cancer (NSCLC)\|Castration-resistant Prostate Cancer (CRPC)	Merck Sharp & Dohme LLC	May 4 2016	Phase 1
NCT02698189	Terminated	AML Including AML de Novo and AML Secondary to MDS\|DLBCL	Merck Sharp & Dohme LLC	May 19 2016	Phase 1
NCT02296476	Terminated	Glioblastoma Multiforme	Oncoethix GmbH a subsidiary of Merck & Co. Inc. (Rahway New Jersey USA)	October 29 2014	Phase 2
NCT02259114	Completed	NUT Midline Carcinoma\|Triple Negative Breast Cancer\|Non-small Cell Lung Cancer With Rearranged ALK Gene/Fusion Protein or KRAS Mutation\|Castrate-resistant Prostate Cancer\|CRPC\|Pancreatic Ductal Adenocarcinoma	Oncoethix GmbH a subsidiary of Merck & Co. Inc. (Rahway New Jersey USA)	October 23 2014	Phase 1
NCT01713582	Completed	Acute Myeloid Leukemia\|Diffuse Large B-cell Lymphoma\|Acute Lymphoblastic Leukemia\|Multiple Myeloma	Oncoethix GmbH a subsidiary of Merck & Co. Inc. (Rahway New Jersey USA)	December 14 2012	Phase 1

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Birabresib (OTX015) BET inhibitor

Chemical Structure

Molecular Weight: 491.99