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Pelabresib (CPI-0610) BET Inhibitor

Name: Pelabresib (CPI-0610)
Brand: Selleck Chemicals
SKU: S7853
Availability: InStock
Rating: 5 (5 reviews)

Cat.No.S7853

Pelabresib (CPI-0610) is a potent and selective benzoisoxazoloazepine BET bromodomain inhibitor with an IC50 of 39 nM for BRD4-BD1 in TR-FRET assay and currently undergoing human clinical trials for hematological malignancies. CPI-0610 inhibits the expression of Nuclear receptor binding SET domain protein 3 (NSD3) target genes.

Chemical Structure

Molecular Weight: 365.81

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Quality Control

Batch: Purity: 99.07%

99.07

Related Targets	HDAC JAK Histone Methyltransferase PKC PARP HIF PRMT EZH2 AMPK Histone Acetyltransferase
Other BET Products	Molibresib (I-BET-762) AZD5153 6-hydroxy-2-naphthoic acid Mivebresib (ABBV-075) INCB054329 ZEN-3694 (BET-IN-19) Birabresib (OTX015) I-BET151 (GSK1210151A) Apabetalone (RVX-208) CPI-203 PFI-1 (PF-6405761)

Solubility

In vitro
Batch:

DMSO : 73 mg/mL (199.55 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 12 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	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	4.000mg/ml (10.93mM)	Taking the 1 mL working solution as an example, add 50 μL of 80 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 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.

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.

Chemical Information, Storage & Stability

Molecular Weight	365.81	Formula	C₂₀H₁₆ClN₃O₂	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	1380087-89-7	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	CC1=NOC2=C1C3=CC=CC=C3C(=NC2CC(=O)N)C4=CC=C(C=C4)Cl

Mechanism of Action

Targets/IC₅₀/Ki	BRD4-BD1 (Cell-free assay) 39 nM MYC (in MV-4-11 cells) 180 nM(EC50)
In vitro	Pelabresib (CPI-0610) inhibits MM(multiple myeloma) cell growth in the presence of cytokines and when co-cultured with bone marrow stromal cells. It induces apoptosis and G1 cell cycle arrest associated with MYC downregulation. However, protein levels of BCL2, NF-κB and MCL1 remain unchanged in MM cells upon BET inhibition. This compound suppresses Ikaros and IRF4 expression at the levels of both transcription and protein in MM cells.
In vivo	In a mouse xenograft model using MV-4-11 acute myeloid leukemia cells, MYC mRNA levels of Pelabresib (CPI-0610)-treated mice were substantially reduced at 4 h compared to the vehicle control and recovered toward the control level at the later time points, which corresponded with decreasing free concentrations of this compound in plasma. Its BET bromodomain inhibition resulted in substantial suppression of tumor growth over the time period examined (41%, 80%, and 74% tumor growth inhibition, respectively), without any significant body weight loss in the animals. On the basis of an acceptable toxicity profile in rat and dog, A common set of toxicities was observed in both species: lymphoid depletion; hypocellularity of the bone marrow with associated anemia and thrombocytopenia; GI mucosal atrophy, erosion, and ulceration; degeneration of the testicular seminiferous epithelium; and mild to moderate hyperglycemia. These toxicities is reversible.
References	[1] https://pubmed.ncbi.nlm.nih.gov/26815195/ [2] http://www.bloodjournal.org/content/126/23/4255

Clinical Trial Information

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

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT05391022	Completed	Advanced Malignancies\|Solid Tumor\|Hematological Malignancy	Constellation Pharmaceuticals	July 20 2021	Phase 1
NCT02986919	Withdrawn	Peripheral Nerve Tumors	University of Texas Southwestern Medical Center	May 5 2017	Phase 2
NCT02157636	Completed	Multiple Myeloma	Constellation Pharmaceuticals\|The Leukemia and Lymphoma Society	July 15 2014	Phase 1
NCT01949883	Completed	Lymphoma	Constellation Pharmaceuticals\|The Leukemia and Lymphoma Society	September 5 2013	Phase 1

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