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Eltrombopag Olamine

Name: Eltrombopag Olamine
Brand: Selleck Chemicals
SKU: S2229
Rating: 5 (13 reviews)

Synonyms: SB497115，SB-497115-GR

Catalog No.S2229 Purity:99.99%

Eltrombopag Olamine is a member of the biarylhydrazone class, which is a nonpeptide agonist of the thrombopoietin receptor (TpoR).

Eltrombopag Olamine Chemical Structure

CAS No. 496775-62-3

Purity & Quality Control

Batch: Purity: 99.99%

99.99

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Biological Activity

Description

Eltrombopag Olamine is a member of the biarylhydrazone class, which is a nonpeptide agonist of the thrombopoietin receptor (TpoR).

Targets

thrombopoietin receptor ^[1]

In vitro
In vitro	Eltrombopag demonstrates a half maximal effective concentration (EC50) of 0.27 μM in murine BAF3 cells transfected with the luciferase reporter gene under direction of the STAT-activated IRF-1 promoter and human TpoR (BAF3/IRF-1/hTpoR). Eltrombopag activates the receptor by association with metal ions (i.e., Zn2+) and specific amino acids within the transmembrane and juxtamembrane domains of the TpoR. Eltrombopag (30 μM) results in activation of STAT5 in N2C-Tpo cells, as detected with an antiphospho-STAT5 antibody on Western blots. Eltrombopag stimulates proliferation after a 2-day incubation with an EC50 of 0.03 μM in a BrdU assay conducted in BAF3/hTpoR cells. Eltrombopag also induces differentiation of hematopoietic stem cells into committed megakaryocyte progenitor cells. Eltrombopag increases the differentiation of bone marrow CD34+ cells into CD41+ megakaryocytes in a dose-dependent manner with an EC50 of 0.1 μM. ^[1] Eltrombopag inhibits N2C-Tpo cell and HEL92.1.7 cell proliferating with IC50 of 20.7 μg/mL and 2.3 μg/mL. ^[2] Eltrombopag (20 μg/mL) leads to a decreased cell division rate, a block in G(1) phase of cell cycle, and increased differentiation in human and murine leukemia cells. Eltrombopag (5 μg/mL) shows clear signs of differentiation, significant changes in the organization of the nuclear contents, and an increase in the cytoplasm/nucleus ratio in HL60 cells. Eltrombopag (5 μg/mL) causes an increase in CD11b, which is consistent with a premacrophage state in U937 cells, and also causes an increase in CD11b in URE cells. Eltrombopag leads to a reduction in free intracellular iron in leukemic cells in a dose-dependent manner in HL60 cells. ^[3]

In Vivo
In vivo	Eltrombopag (10 mg/kg per day) increases platelet counts over twofold approximately 1 week after the last dose for one chimpanzee and approximately 1.5-fold for the other two chimpanzees. ^[1] Eltrombopag (1 mg/mL) prolongs survival in mouse models of leukemia. ^[3]

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-05-22)
NCT01550185	Terminated	Adult Acute Basophilic Leukemia\|Adult Acute Eosinophilic Leukemia\|Adult Acute Megakaryoblastic Leukemia (M7)\|Adult Acute Minimally Differentiated Myeloid Leukemia (M0)\|Adult Acute Monoblastic Leukemia (M5a)\|Adult Acute Monocytic Leukemia (M5b)\|Adult Acute Myeloblastic Leukemia With Maturation (M2)\|Adult Acute Myeloblastic Leukemia Without Maturation (M1)\|Adult Acute Myeloid Leukemia With 11q23 (MLL) Abnormalities\|Adult Acute Myeloid Leukemia With Del(5q)\|Adult Acute Myeloid Leukemia With Inv(16)(p13;q22)\|Adult Acute Myeloid Leukemia With t(16;16)(p13;q22)\|Adult Acute Myeloid Leukemia With t(8;21)(q22;q22)\|Adult Acute Myelomonocytic Leukemia (M4)\|Adult Erythroleukemia (M6a)\|Adult Pure Erythroid Leukemia (M6b)\|Recurrent Adult Acute Myeloid Leukemia	Roswell Park Cancer Institute\|GlaxoSmithKline	May 2012	Phase 1
NCT01416311	Completed	Purpura Thrombocytopaenic Idiopathic	Novartis Pharmaceuticals\|Novartis	December 21 2010	--

References

Chemical Information & Solubility

Molecular Weight	564.63	Formula	C₂₉H₃₆N₆O₆
CAS No.	496775-62-3	SDF	Download Eltrombopag Olamine SDF
Smiles	CC1=C(C=C(C=C1)N2C(=O)C(=C(N2)C)N=NC3=CC=CC(=C3O)C4=CC(=CC=C4)C(=O)O)C.C(CO)N.C(CO)N
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 : 89 mg/mL ( (157.62 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molecular Weight Calculator

In vivo
Batch:

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In vivo Formulation Calculator

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In vivo Formulation Calculator (Clear solution)

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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.

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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

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