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Fedratinib (TG101348)

Name: Fedratinib (TG101348)
Brand: Selleck Chemicals
SKU: S2736
Rating: 5 (84 reviews)

Synonyms: SAR302503

Catalog No.S2736 Purity: 99.99%

Fedratinib (SAR302503, TG101348) is a selective inhibitor of JAK2 with IC50 of 3 nM in cell-free assays, 35- and 334-fold more selective for JAK2 versus JAK1 and JAK3. Fedratinib also inhibits FMS-like tyrosine kinase 3 (FLT3) and RET (c-RET) with IC50 of 15 nM and 48 nM, respectively. Fedratinib has potential antineoplastic activity. Fedratinib inhibits proliferation and induces apoptosis. Phase 2.

Fedratinib (TG101348) Chemical Structure

CAS: 936091-26-8

Selleck's Fedratinib (TG101348) has been cited by 84 publications

Purity & Quality Control

Batch: Purity: 99.99%

99.99

Products often used together with Fedratinib (TG101348)

Ruxolitinib

Fedratinib is a better option for treatment of myelofibrosis, for patients failing Ruxolitinib.

Saha C, et al. Expert Rev Hematol. 2022 Jul;15(7):583-595.

Vincristine

Fedratinib and Vincristine co-treatment reduces cell viability, increases G2 arrest, and upregulates apoptosis in KBV20C cells.

Oh Y, et al. Int J Mol Sci. 2022 Apr 21;23(9):4597.

Venetoclax (ABT-199)

Fedratinib and Venetoclax combination treatment reduces survival and proliferation of FLT3 ⁺ B-ALL in RS4;11 and SUPB-15 cells.

Rinella SP, et al. bioRxiv. 2023 Jun 9;2023.06.07.544058.

Pacritinib

Fedratinib and Pacritinib are FDA-approved JAK2 inhibitors that are utilized in patients failing treatment with hydroxyurea/ruxolitinib/with platelet count <50 × 10 (9)/L.

Tefferi A. Am J Hematol. 2023 May;98(5):801-821.

Momelotinib (CYT387)

Fedratinib and Momelotinib are new JAK inhibitors being tested for managing myeloproliferative neoplasms.

Patel AA, et al. Curr Hematol Malig Rep. 2020 Dec;15(6):409-418.

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Cell Data

Cell Lines	Assay Type	Concentration	Incubation Time	Formulation	Activity Description	PMID
H1975	Apoptosis Assay	0.5-2 μM	12-48 h	DMSO	induces apoptosis in both dose- and time- dependent manner	25869210
H1650	Apoptosis Assay	0.5-2 μM	12-48 h	DMSO	induces apoptosis in both dose- and time- dependent manner	25869210
H1975	Function Assay	0.25-1 μM	24 h	DMSO	inhibits expression of apoptosis-related protein Bcl-XL, Bcl-2, survivin, XIAP	25869210
H1650	Function Assay	0.25-1 μM	24 h	DMSO	inhibits expression of apoptosis-related protein Bcl-XL, Bcl-2, survivin, XIAP	25869210
H1975	Growth Inhibition Assay	1 μM	48 h	DMSO	sensitizes cells to the cytotoxicity of erlotinib	25869210
H1650	Growth Inhibition Assay	1 μM	48 h	DMSO	sensitizes cells to the cytotoxicity of erlotinib	25869210
CD4+ T	Function Assay	0.01-1 μM	48 h	DMSO	reduces the phosphorylation levels of JAK2 and STAT3	25572535
Caco-2	Function Assay	0-120 μM	7 min		inhibits thiamine uptake with an IC50 of 2.1 µM	25063672
Caco-2	Function Assay	10/50/100 μM	2 h		decreases the flux of [3H]thiamine across the monolayer with IC50 of 6.5 μM	25063672
HEK293 MSR	Function Assay	0-10 μM	7 min		inhibits hTHTR2 with an IC50 of 1.2 µM	25063672
MedB-1	Function Assay	1/2 μM	24 h		decreases STAT6 phosphorylation concentration dependently	24977668
U2940	Function Assay	1/2 μM	24 h		decreases STAT6 phosphorylation concentration dependently	24977668
K1106	Function Assay	1/2 μM	24 h		decreases STAT6 phosphorylation concentration dependently	24977668
K562	Growth Inhibition Assay	0-1 μM	72 h		inhibits K562 cell proliferation at high concentration	24775308
MDA-MB-468	Growth Inhibition Assay	3 µM	48 h		enhanced sibcl6 induced loss of cell viability	24662818
MDA-MB-468	Growth Inhibition Assay	0-4 μM	48 h		results significant loss of viability compared to RI-BPI alone	24662818
L428	Growth Inhibition Assay	0-5 μM	48 h		inhibits cell growth significantly	24610827
KMH2	Growth Inhibition Assay	0-5 μM	48 h		inhibits cell growth significantly	24610827
L1236	Growth Inhibition Assay	0-5 μM	48 h		inhibits cell growth significantly	24610827
SUPHD1	Growth Inhibition Assay	0-5 μM	48 h		inhibits cell growth significantly	24610827
HDLM2	Growth Inhibition Assay	0-5 μM	48 h		inhibits cell growth significantly	24610827
K1106P	Growth Inhibition Assay	0-5 μM	48 h		inhibits cell growth significantly	24610827
L428	Apoptosis Assay	0/0.625/1.25 μM	48 h		induces the apoptosis	24610827
KMH2	Apoptosis Assay	0/0.625/1.25 μM	48 h		induces the apoptosis	24610827
L1236	Apoptosis Assay	0/0.625/1.25 μM	48 h		induces the apoptosis	24610827
SUPHD1	Apoptosis Assay	0/0.625/1.25 μM	48 h		induces the apoptosis	24610827
HDLM2	Apoptosis Assay	0/0.625/1.25 μM	48 h		induces the apoptosis	24610827
K1106P	Apoptosis Assay	0/0.625/1.25 μM	48 h		induces the apoptosis	24610827
L428	Function Assay	0-5 μM	24 h		inhibits JAK2/STAT signaling	24610827
KMH2	Function Assay	0-5 μM	24 h		inhibits JAK2/STAT signaling	24610827
L1236	Function Assay	0-5 μM	24 h		inhibits JAK2/STAT signaling	24610827
SUPHD1	Function Assay	0-5 μM	24 h		inhibits JAK2/STAT signaling	24610827
HDLM2	Function Assay	0-5 μM	24 h		inhibits JAK2/STAT signaling	24610827
K1106P	Function Assay	0-5 μM	24 h		inhibits JAK2/STAT signaling	24610827
MM.1S	Growth Inhibition Assay				IC50=1-3 μM	24584101
TpoR JAK2 WT	Growth Inhibition Assay				IC50=1.4 (1.3–1.5) μM	24251790
TpoR JAK2 V617F	Growth Inhibition Assay				IC50=0.8 (0.7–0.9) μM	24251790
TpoR W515L	Growth Inhibition Assay				IC50=0.8 (0.7–1.0) μM	24251790
Bcr-abl	Growth Inhibition Assay				IC50=2.7 (2.2–3.3) μM	24251790
JAK2 TW	Growth Inhibition Assay				IC50=1.8 (1.5–2.3) μM	24251790
JAK2 V617F	Growth Inhibition Assay				IC50=0.6 (0.6–0.7) μM	24251790
MedB-1	Growth Inhibition Assay	4 μM	24/48/72 h	DMSO	inhibits cell growth time dependently	23852366
K1106	Growth Inhibition Assay	4 μM	24/48/72 h	DMSO	inhibits cell growth time dependently	23852366
U2940	Growth Inhibition Assay	4 μM	24/48/72 h	DMSO	inhibits cell growth time dependently	23852366
FE-PD	Growth Inhibition Assay	0.063-4 μM			IC50=9.5 μM, inhibits cell growth dose dependently	23372669
HEL	Growth Inhibition Assay	0.063-4 μM			IC50=1.5 μM, inhibits cell growth dose dependently	23372669
K-562	Growth Inhibition Assay	0.063-4 μM			IC50=2.5 μM, inhibits cell growth dose dependently	23372669
L-82	Growth Inhibition Assay	0.063-4 μM			IC50=0.98 μM, inhibits cell growth dose dependently	23372669
MAC-1	Growth Inhibition Assay	0.063-4 μM			IC50=0.52 μM, inhibits cell growth dose dependently	23372669
MAC-2A	Growth Inhibition Assay	0.063-4 μM			IC50=0.69 μM, inhibits cell growth dose dependently	23372669
MAC-2B	Growth Inhibition Assay	0.063-4 μM			IC50=0.54 μM, inhibits cell growth dose dependently	23372669
MY-LA	Growth Inhibition Assay	0.063-4 μM			IC50=2.1 μM, inhibits cell growth dose dependently	23372669
NC-NC	Growth Inhibition Assay	0.063-4 μM			IC50=1.0 μM, inhibits cell growth dose dependently	23372669
SE-AX	Growth Inhibition Assay	0.063-4 μM			IC50=1.5 μM, inhibits cell growth dose dependently	23372669
SR-786	Growth Inhibition Assay	0.063-4 μM			IC50=4.6 μM, inhibits cell growth dose dependently	23372669
M-MOK	Growth Inhibition Assay	25 µM	24/48/72 h	DMSO	inhibits cell growth time dependently	21853157
HEL	Growth Inhibition Assay				IC50=305 nM	18394554
Ba/F3 JAK2V617F	Growth Inhibition Assay				IC50=270 nM	18394554
MV4-11	Antiproliferative assay		72 hrs		Antiproliferative activity against human MV4-11 cells after 72 hrs by celltiter-blue assay, EC50 = 0.079 μM.	28280261
MM1S	Antiproliferative assay		72 hrs		Antiproliferative activity against human MM1S cells after 72 hrs by trypan blue exclusion assay, IC50 = 1 μM.	28280261
NB1643	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB1643 cells	29435139
SK-N-MC	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-MC cells	29435139
Click to View More Cell Line Experimental Data

Biological Activity

Description

Targets

JAK2 ^[1] (Cell-free assay)	JAK2 (V617F) ^[1] (Cell-free assay)	FLT3 ^[1] (Cell-free assay)	RET ^[1] (Cell-free assay)
3 nM	3 nM	15 nM	48 nM

In vitro
In vitro	TG-101348 also significantly inhibits JAK2 V617F, Flt3, and Ret with IC50 of 3 nM, 15 nM, and 48 nM, respectively. TG101348 has an IC50 ~300-fold higher for the closely related JAK3 and is a less potent inhibitor of the JAK1 and TYK2 family members. TG101348 inhibits proliferation of a human erythroblast leukemia (HEL) cell line that harbors the JAK2V617F mutation, as well as a murine pro-B cell line expressing human JAK2V617F (Ba/F3 JAK2V617F), with IC50 of 305 nM and 270 nM, respectively. TG-101348 also inhibits proliferation of parental Ba/F3 cells to a comparable level, with IC50 of ~420 nM. TG101348 treatment reduces STAT5 phosphorylation at concentrations that parallel the concentrations required to inhibit cell proliferation. TG101348 induces apoptosis in both HEL and Ba/F3 JAK2V617F cells in a dose-dependent manner. TG101348 does not show proapoptotic activity in control normal human dermal fibroblasts at concentrations up to 10 μM, and the antiproliferative IC50 against fibroblasts is >5 μM. ^[1] TG101348 treatment decreases GATA-1 expression, which is associated with erythroid-skewing of JAK2V617F⁺ progenitor differentiation, and inhibits STAT5 as well as GATA S310 phosphorylation. ^[2] TG101348 inhibits the proliferation of HMC-1.1 (KITV560G) cells, with somewhat lower potency than HMC-1.2 (KITD816V, KITV560G) cells, with IC50 of 740 nM and 407 nM, respectively. ^[3]
Kinase Assay	Cell-free Kinase Activity Assays
Kinase Assay	IC50 values for TG101348 are determined commercially using the InVitrogen kinase profiling service for a 223 kinase screen that included JAK2 and JAK2V617F or Carna Biosciences for the screen of all Janus kinase family members including JAK1 and Tyk2. ATP concentration is set to approximately the Km value for each kinase.
Cell Research	Cell lines	EpoBa/F3 JAK2V617F, Ba/F3p210, HEL, and K562
	Concentrations	Dissolved in DMSO, final concentrations ~10 μM
	Incubation Time	72 hours
	Method	Approximately 2 × 10³ cells are plated into microtiter-plate wells in 100 μL RPMI-1640 growth media with indicated concentrations of inhibitor. Following 72 hours incubation with TG101348, 50 μL of XTT dye are added to each well and incubated for 4 hours in a CO₂ incubator. The colored formazan product is measured by spectrophotometry at 450 nm with correction at 650 nm. The concentration in which 50% of the effect (i.e., inhibition of proliferation) is observed (IC50) is determined using the GraphPad Prism 4.0 software. All experiments are performed in triplicate, and the results are normalized to growth of untreated cells. Induction of apoptosis of EpoBa/F3 JAK2V617F, Ba/F3p210, HEL, and K562 cells is determined by DNA fragmentation with DMSO and increasing concentrations of TG101348.
Experimental Result Images	Methods	Biomarkers	Images	PMID
	Western blot	p-JAK2 / p-STAT1 / p-STAT3 / p-STAT6 / p-STAT5 / JAK2 c-Myc / PIM1		24610827
	Growth inhibition assay	Cell proliferation		24610827

In Vivo
In vivo	TG101348 has potential for efficacious treatment of JAK2V617F-associated myeloproliferative diseases (MPD). In treated animals, there is a statistically significant reduction in hematocrit and leukocyte count, a dose-dependent reduction/elimination of extramedullary hematopoiesis, and, at least in some instances, evidence for attenuation of myelofibrosis, correlated with surrogate endpoints, including reduction/elimination of JAK2V617F disease burden, suppression of endogenous erythroid colony formation, and in vivo inhibition of JAK-STAT signal transduction. There are no apparent toxicities and no effect on T cell number. ^[1] Oral administration of TG101348 (120 mg/kg) significantly inhibits PV progenitor erythroid differentiation in vivo. ^[2]
Animal Research	Animal Models	C57BL/6 mice injected intravenously with whole bone marrow expressing JAK2V617F
	Dosages	~120 mg/kg
	Administration	Oral gavage twice daily (b.i.d.)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-01-11)
NCT04955938	Recruiting	IDH Mutation\|IDH1 Mutation\|IDH2 Gene Mutation\|Blood Cancer\|Myeloproliferative Neoplasm	University of Chicago	October 29 2021	Phase 1
NCT05051553	Completed	Healthy Volunteers	Bristol-Myers Squibb	September 21 2021	Phase 1
NCT04702464	Completed	Healthy Volunteers	Celgene\|Impact Biomedicines Inc. a wholly owned subsidiary of Celgene Corporation	January 12 2021	Phase 1
NCT03983161	Completed	Healthy Volunteers\|Hepatic Impairment	Celgene\|Impact Biomedicines Inc. a wholly owned subsidiary of Celgene Corporation	September 4 2019	Phase 1
NCT03983239	Completed	Healthy Volunteers	Celgene\|Impact Biomedicines Inc. a wholly owned subsidiary of Celgene Corporation	June 21 2019	Phase 1

References

Chemical lnformation & Solubility

Molecular Weight	524.68	Formula	C₂₇H₃₆N₆O₃S
CAS No.	936091-26-8	SDF	Download Fedratinib (TG101348) SDF
Smiles	CC1=CN=C(N=C1NC2=CC(=CC=C2)S(=O)(=O)NC(C)(C)C)NC3=CC=C(C=C3)OCCN4CCCC4
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 ( (190.59 mM)； Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble

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In vivo
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