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Friday, February 23, 2018

MEK inhibitor

Full text] MEK inhibitors and their potential in the treatment of ...
src: www.dovepress.com

A MEK inhibitor is a chemical or drug that inhibits the mitogen-activated protein kinase kinase enzymes MEK1 and/or MEK2. They can be used to affect the MAPK/ERK pathway which is often overactive in some cancers. (See MAPK/ERK pathway#Clinical significance.)

Hence MEK inhibitors have potential for treatment of some cancers, especially BRAF-mutated melanoma, and KRAS/BRAF mutated colorectal cancer.


Video MEK inhibitor



Approved for clinical use

  • Trametinib (GSK1120212), FDA-approved to treat BRAF-mutated melanoma. Also studied in combination with BRAF inhibitor dabrafenib to treat BRAF-mutated melanoma.
  • Cobimetinib or XL518, approved by US FDA in Nov 2015 for use in combination with vemurafenib (Zelboraf(R)), for treatment of advanced melanoma with a BRAF V600E or V600K mutation.

Maps MEK inhibitor



In clinical trials

  • Binimetinib (MEK162), is currently in phase 3 clinical trials for ovarian cancer, BRAF mutant melanoma, and NRAS mutant melanoma.
  • Selumetinib, had a phase 2 clinical trial for non-small cell lung cancer (NSCLC) which demonstrated an improvement in PFS, and is now in phase III development in KRAS mutation positive NSCLC (SELECT-1, NCT01933932). Other ph 3 clinical trials underway include uveal melanoma (failed), and differentiated thyroid carcinoma.
  • PD-325901, for breast cancer, colon cancer, and melanoma A phase II trial for advanced non-small cell lung cancer "did not meet its primary efficacy end point".

Binimetinib cancer drug molecule (MEK inhibitor). Skeletal formula ...
src: c8.alamy.com


Others

  • CI-1040, PD035901
  • TAK-733, preclinical for multiple myeloma.

Relief of Feedback Inhibition of HER3 Transcription by RAF and MEK ...
src: cancerdiscovery.aacrjournals.org


References


Source of the article : Wikipedia