Name: Onvansertib (NMS-P937)
Brand: Selleck Chemicals
SKU: S7255
Rating: 5 (6 reviews)

Onvansertib (NMS-P937, PCM-075, NMS1286937) is an orally available, selective Polo-like Kinase 1 (PLK1) inhibitor with IC50 of 2 nM, 5000-fold selectivity over PLK2/PLK3. Onvansertib (NMS-P937) potently causes a mitotic cell-cycle arrest followed by apoptosis in cancer cell lines and inhibits tumor growth. Phase 1.

Onvansertib (NMS-P937) Chemical Structure

CAS: 1034616-18-6

Selleck's Onvansertib (NMS-P937) has been cited by 6 publications

Purity & Quality Control

Batch: Purity: 99.83%

99.83

Onvansertib (NMS-P937) Related Products

Related Targets	PLK1 PLK2 PLK3 PLK4	Click to Expand
Related Compound Libraries	Kinase Inhibitor Library PI3K/Akt Inhibitor Library MAPK Inhibitor Library DNA Damage/DNA Repair compound Library Cell Cycle compound library	Click to Expand

Signaling Pathway

PLK Signaling Pathway

Choose Selective PLK Inhibitors

Cell Data

Cell Lines	Assay Type	Concentration	Incubation Time	Activity Description	PMID
A2780	Antiproliferative assay			Antiproliferative activity against human A2780 cells, IC50 = 0.042 μM.	21470862
CAL51	Cell cycle assay	0.1 to 1 uM	24 hrs	Cell cycle arrest in human CAL51 cells at 0.1 to 1 uM after 24 hrs by flow cytometry	21470862
Click to View More Cell Line Experimental Data

Biological Activity

Description

Onvansertib (NMS-P937, PCM-075, NMS1286937) is an orally available, selective Polo-like Kinase 1 (PLK1) inhibitor with IC50 of 2 nM, 5000-fold selectivity over PLK2/PLK3. Onvansertib (NMS-P937) potently causes a mitotic cell-cycle arrest followed by apoptosis in cancer cell lines and inhibits tumor growth. Phase 1.

Targets

PLK1 ^[1]

2 nM

In vitro
In vitro	NMS-P937 shows a broad-spectrum antiproliferative activity against different solid tumor, leukemias and lymphomas cell lines. NMS-P937 potently causes a mitotic cell-cycle arrest followed by apoptosis in A2780 cells. ^[2]
Kinase Assay	Kinase profile
Kinase Assay	The inhibitory activity of putative kinase inhibitors and the potency of selected compounds are determined using a trans-phosphorylation assay. Specific peptide or protein substrates are trans-phosphorylated by their specific serine-threonine or tyrosine kinase, in the presence of ATP traced with ³³P-γ-ATP, at optimized buffer and cofactors conditions. At the end of the phosphorylation reaction, more than 98% unlabeled ATP and radioactive ATP is captured by adding an excess of the ion exchange dowex resin; the resin then settles down to the bottom of the reaction plate by gravity. Supernatant, containing the phosphorylated substrate, is subsequently withdrawn and transferred into a counting plate, followed by evaluation by b-counting. Inhibitory potency evaluation for all the tested kinases was performed at 25 °C using a 60 min end-point assay where the concentrations of ATP and substrates are kept equal to 2 x αKm and saturated (>5 x αKm), respectively.
Cell Research	Cell lines	137 solid tumor cell lines, and 43 cell lines derived from leukemias and lymphomas
	Concentrations	~10 μM
	Incubation Time	72 hours
	Method	Cells are seeded into 96- or 384-well plates at densities ranging from 10,000 to 30,000/cm2 for adherent and 100,000/mL for nonadherent cells in appropriate medium supplemented with 10% fetal calf serum. After 24 hours, cells were treated in duplicate with serial dilutions of NMS-P937, and 72 hours later, the viable cell number was assessed by the CellTiter-Glo Assay (Promega). IC50 values were calculated with a sigmoidal fitting algorithm (Assay Explorer MDL). Experiments were carried out independently at least twice.

In Vivo

In vivo

In mice xenografted with human HCT116 colon adenocarcinoma cells, NMS-P937 (90 mg/kg/d i.v. or p.o.) shows a significant tumor growth inhibition. ^[1]

In mice bearing HT29, Colo205 colorectal, or A2780 ovarian xenograft tumors, NMS-P937 inhibits xenograft tumor growth. In addition, NMS-P937, in combination with approved cytotoxic drugs, causes enhanced tumor regression, and prolongs survival of animals. ^[2]

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-01-11)
NCT05593328	Active not recruiting	Colorectal Cancer\|Metastatic Colorectal Cancer	Cardiff Oncology	March 17 2023	Phase 2
NCT03829410	Active not recruiting	Metastatic Colorectal Cancer\|KRAS Gene Mutation	Cardiff Oncology	May 6 2019	Phase 1\|Phase 2
NCT03303339	Completed	Acute Myeloid Leukemia	Cardiff Oncology	November 17 2017	Phase 1\|Phase 2

References

Chemical Information & Solubility

Molecular Weight	532.52	Formula	C₂₄H₂₇F₃N₈O₃
CAS No.	1034616-18-6	SDF	Download Onvansertib (NMS-P937) SDF
Smiles	CN1CCN(CC1)C2=CC(=C(C=C2)OC(F)(F)F)NC3=NC=C4CCC5=C(C4=N3)N(N=C5C(=O)N)CCO
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 : 42 mg/mL ( (78.87 mM)； Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 10 mg/mL

Water : Insoluble

Molecular Weight Calculator

In vivo
Batch:

Add solvents to the product individually and in order.

In vivo Formulation Calculator

Preparing Stock Solutions

Molarity Calculator

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.

* Indicates a Required Field

C1=C0/X	C1:	LOG(C1):
C2=C1/X	C2:	LOG(C2):
C3=C2/X	C3:	LOG(C3):
C4=C3/X	C4:	LOG(C4):
C5=C4/X	C5:	LOG(C5):
C6=C5/X	C6:	LOG(C6):
C7=C6/X	C7:	LOG(C7):
C8=C7/X	C8:	LOG(C8):