Structure of MRTX1133
CAS No.: 2621928-55-8
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The BI-3802 was designed by Boehringer Ingelheim and could be obtained free of charge through the Boehringer Ingelheim open innovation portal opnMe.com, associated with its negative control.
MRTX1133 is a highly selective KRAS G12D inhibitor that effectively suppresses its signaling pathways.
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CAS No. : | 2621928-55-8 |
Formula : | C33H31F3N6O2 |
M.W : | 600.63 |
SMILES Code : | C(OC=1N=C(C2=C(N1)C(F)=C(N=C2)C=3C4=C(C=C(O)C3)C=CC(F)=C4C#C)N5CC6NC(C5)CC6)[C@@]78N(C[C@H](F)C7)CCC8 |
MDL No. : | MFCD34567005 |
InChI Key : | SCLLZBIBSFTLIN-IFMUVJFISA-N |
Pubchem ID : | 156124857 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501 |
Description |
MRTX1133 is a noncovalent, potent, and selective inhibitor targeting KRAS G12D. It occupies the switch II pocket optimally and extends three substituents to facilitate favorable interactions with the protein, resulting in an estimated KD against KRAS G12D of 0.2 pM. MRTX1133 blocks SOS1-catalyzed nucleotide exchange and/or the formation of the KRAS G12D/GTP/RAF1 complex, thereby impeding mutant KRAS-dependent signal transduction. It selectively inhibits KRAS G12D mutant tumor cells while sparing KRAS wild-type cells. MRTX1133 exhibits single-digit nanomolar activity in cellular assays and demonstrates significant efficacy in tumor models with KRAS G12D mutations[1][2].
|
In Vitro:
Cell Line
|
Concentration | Treated Time | Description | References |
ASPC1 cells | 60 nmol/L | 72 hours | MRTX1133 and afatinib combination showed synergistic effects | PMC10502451 |
SUIT2 cells | 60 nmol/L | 72 hours | MRTX1133 treatment dramatically decreased pMEK1/2 and partially reduced pERK1/2 | PMC10502451 |
PDAC-K cells (2138-K, 3213-K, 1245-K, PANC1-K) | 2 µmol/L | 8 hours | MRTX1133 treatment decreased pERK signaling and upregulates BIM expression in 3D collagen cultures. | PMC11532783 |
PDAC cells (2138, 3213, 1245, PANC1) | 0.5 µmol/L | 72 hours | MRTX1133, even though it blocked ERK1/2 phosphorylation, failed to suppress the growth of these cell lines. | PMC11532783 |
PDAC cells (2138, 3213, 1245, PANC1) | 0.5 µmol/L | 72 hours | MRTX1133 suppressed ERK1/2 phosphorylation and effectively blocked the growth of mouse and human PDAC cell lines. | PMC11532783 |
KPC210-MR cells | 1 µM | 48 hours | To investigate the ferroptosis inhibition mechanism in MRTX1133-resistant cells, results showed that increased MGST1 expression led to ferroptosis inhibition. | PMC11536589 |
AsPC1-MR cells | 1 µM | 48 hours | To investigate the ferroptosis inhibition mechanism in MRTX1133-resistant cells, results showed that increased MGST1 expression led to ferroptosis inhibition. | PMC11536589 |
KPC210 cells | 1 µM | 48 hours | To investigate the anti-tumor effect of MRTX1133 on KRASG12D-mutated PDAC cells, results showed that MRTX1133 induced ferroptosis. | PMC11536589 |
AsPC1 cells | 1 µM | 48 hours | To investigate the anti-tumor effect of MRTX1133 on KRASG12D-mutated PDAC cells, results showed that MRTX1133 induced ferroptosis. | PMC11536589 |
PK-59 | 5 nM | 48 hours | To evaluate the effect of MRTX1133 on KRASG12D-mutant pancreatic cancer cells, results showed reactivation of AKT phosphorylation | PMC11793007 |
PANC-1 | 5 nM | 48 hours | To evaluate the effect of MRTX1133 on KRASG12D-mutant pancreatic cancer cells, results showed phosphorylation of ERK and STAT3 was inhibited | PMC11793007 |
KP-4 | 4 nM | 48 hours | To evaluate the effect of MRTX1133 on KRASG12D-mutant pancreatic cancer cells, results showed KP-4 had slight intrinsic resistance to MRTX1133 | PMC11793007 |
SUIT-2 | 5 nM | 48 hours | To evaluate the effect of MRTX1133 on KRASG12D-mutant pancreatic cancer cells, results showed MRTX1133 inhibited phosphorylation of ERK and STAT3 | PMC11793007 |
In Vivo:
Species
|
Animal Model
|
Administration | Dosage | Frequency | Description | References |
C57BL/6 mice | Subcutaneous tumor model | Intraperitoneal injection | 30 mg/kg (twice daily) | Twice daily until study endpoint | Venetoclax enhanced the efficacy of MRTX1133 in vivo, leading to tumor growth suppression and partial tumor regression. | PMC11532783 |
Mice | PDAC mouse models | Intraperitoneal injection | 6 mg/kg and 12 mg/kg | Once daily for 10 days | Combination of MRTX1133 and afatinib led to tumor regression and prolonged survival | PMC10502451 |
Mouse | KPC allograft model | Intraperitoneal injection | 30 mg/kg/day | Once daily until tumor volume reached approximately 1500 mm3 | Evaluate the antitumor efficacy of MRTX1133 alone or in combination with PGG | PMC11866490 |
Nude mice | Subcutaneous injection of AsPC1-MR cells | Intraperitoneal and intratumoral injection | 1 mg/kg | MRTX1133 once daily, PKF-118-310 twice a week for 19 days | To investigate the inhibitory effect of combined treatment with PKF-118-310 and MRTX1133 on MRTX1133-resistant tumors, results showed that the combination significantly suppressed tumor growth and induced ferroptosis. | PMC11536589 |
BALB/cAJcl Foxn1nu mice | SUIT-2 xenograft model | Oral | 0.5 mg/kg | Once daily for 21 days | To evaluate the antitumor effect of MRTX1133 alone and in combination with trametinib and fedratinib, results showed the three-drug combination therapy significantly inhibited tumor growth | PMC11793007 |
Mouse | HG-PMP xenograft mouse model | 30 mg/kg | MRTX1133 significantly inhibited tumor growth, reduced cell proliferation, increased apoptosis, and decreased the activity of MAPK and PI3K/AKT/mTOR signaling pathways | PMC10704766 | ||
Mice | KRASG12D mutant xenograft mouse tumor model | Oral | 30 mg/kg | Single dose | Evaluate the oral bioavailability of MRTX1133 | PMC9948199 |
Clinical Trial:
NCT Number | Conditions | Phases | Recruitment | Completion Date | Locations |
NCT05737706 | Solid Tumor|Advanced Solid Tum... More >>or|Non-small Cell Lung Cancer|Colo-rectal Cancer|Pancreatic Adenocarcinoma Less << | PHASE1 | ACTIVE_NOT_RECRUITING | 2026-08-30 | Local Institution - 311, Phoen... More >>ix, Arizona, 85054, United States|Local Institution - 309, New Haven, Connecticut, 06520 8028, United States|Local Institution - 301, Lady Lake, Florida, 32159 8987, United States|Local Institution - 306, Baltimore, Maryland, 21231, United States|Local Institution - 308, Boston, Massachusetts, 02114 3117, United States|Local Institution - 310, Boston, Massachusetts, 02215, United States|Local Institution - 314, Grand Rapids, Michigan, 49546, United States|Local Institution - 312, New York, New York, 10065 6800, United States|Local Institution - 303, Nashville, Tennessee, 37203, United States|Local Institution - 302, Houston, Texas, 77030, United States|Local Institution - 304, San Antonio, Texas, 78229 3307, United States|Local Institution - 313, San Antonio, Texas, 78229, United States|Local Institution - 305, Fairfax, Virginia, 22031, United States|Local Institution - 307, Seattle, Washington, 98109 1023, United States Less << |
Bio Calculators | ||||
Preparing Stock Solutions | ![]() |
1mg | 5mg | 10mg |
1 mM 5 mM 10 mM |
1.66mL 0.33mL 0.17mL |
8.32mL 1.66mL 0.83mL |
16.65mL 3.33mL 1.66mL |
Tags: MRTX1133 | MRTX 1133 | MRTX-1133 | Ras Inhibitor | ERK phosphorylation | KRAS G12D inhibitor | mutant KRAS | SOS1 inhibition | SOS1-mediated nucleotide exchange | KRAS/GTP/RAF1 complex | 2621928-55-8
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