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CAS NO.: 606143-52-6
Chemical Formula: C17H15BrClFN4O3
Molecular Weight: 457.7000
DMF&GMP status: Please contact us for more details.
Selumetinib is an orally active, small molecule with potential antineoplastic activity. Selumetinib is an ATP-independent inhibitor of mitogen-activated protein kinase kinase (MEK or MAPK/ERK kinase) 1 and 2. MEK 1 and 2 are dual specificity kinases that are essential mediators in the activation of the RAS/RAF/MEK/ERK pathway, are often upregulated in various cancer cells, and are drivers of diverse cellular responses, including proliferation. Inhibition of both MEK1 and 2 by selumetinib prevents the activation of MEK1/2 dependent effector proteins and transcription factors, thereby leading to an inhibition of cellular proliferation in various cancers.

Selumetinib is a member of the class of benzimidazoles that is 1-methyl-1H-benzimidazole which is substituted at positions 4, 5, and 6 by fluorine, (4-bromo-2-chlorophenyl)amino, and N-(2-hydroxyethoxy)aminocarbonyl groups, respectively. It is a MEK1 and MEK2 inhibitor. It has a role as an EC (mitogen-activated protein kinase) inhibitor, an antineoplastic agent and an anticoronaviral agent. It is a member of benzimidazoles, a hydroxamic acid ester, a member of monochlorobenzenes, a member of bromobenzenes, an organofluorine compound and a secondary amino compound.

Activation of the Raf-MEK-ERK signaling pathway is known to be implemented in several types of malignancies, thus, mitogen-activated protein kinase kinase (MEK) inhibitors such as selumetinib are important tools that can target the problematic overactivity of this pathway. Results from clinical trials investigating earlier developed MEK inhibitors were underwhelming. However, selumetinib demonstrated impressive efficacy and tolerability in Phase I trials, leading to its continued investigation for the treatment of various types of tumors in Phase II trials. Currently, the novel MEK 1 / 2 inhibitor, selumetinib, is approved solely for the treatment of Neurofibromatosis type 1 (NF-1) in a limited age group. NF-1 is considered rare with an estimated incidence of 1/3000 individuals. It is a genetic, autosomal dominant condition resulting from mutations of the NF1 gene, which can lead to various complications including the development of multiple tumors in the nervous system. Some patients with this disorder develop plexiform neurofibromas (PN); however, this is considered to be relatively uncommon compared to other variants of NF-1. Luckily, the use of selumetinib in patients with NF-1 has shown efficacy in shrinking associated tumors and is linked to other positive clinical outcomes.

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NCE 04/10/2025
ODE-288 04/10/2027