Biotech Strategy Blog

Commentary on Science, Innovation & New Products with a focus on Oncology, Hematology & Immunotherapy

Posts tagged ‘MEK162’

ASCO 2014 Preview #1: When triple combinations make sense

The ASCO 2014 season kicks off with the release of the embargo on main abstracts (other than the late breakers and plenary sessions) yesterday evening. Over the next week, I’m planning to cover some of the highlights (positive and negative) that I found interesting or worthwhile discussing. While there was nothing particularly earth shattering or new in the press briefing at lunch time yesterday, that’s not to say there aren’t some important data this year buried amongst the 5000+ abstracts.

Today I’m driving to Orlando and on Friday will be at the American Urological Association (AUA) meeting, so a lighter post will appear here on BSB regarding my initial topline highlights and lowlights tomorrow.

I decided to kick off the ASCO Previews first and focus on an altogether different topic, one that we’ve covered longitudinally on either PSB and BSB – originally with some scientific and translational data – and now with some initial clinical trials that look pretty encouraging thus far. The bench-to-bedside transition is often fraught with many challenges, but occasionally, they actually turn out quite well in practice.

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Update on overcoming resistance in metastatic melanoma

Every year at AACR meetings there seems to be a new update on how researchers are doing with their work on overcoming resistance in metastatic melanoma. We’ve seen some stunning photos where targeting the BRAF V600E mutation with a specific kinase inhibitor such as vemurafenib (Zelboraf) or dabrafenib (Tafinlar) results in dramatic reduction, and sometimes even complete disappearance of the lesions, only for resistance to set in and the melanoma sadly comes back with a vengeance. Adding a MEK inhibitor such as trametinib (Mekinist) was originally thought to be a rather promising strategy, until it became clear that this only gave a few extra months with exactly the same result.

Over on Pharma Strategy Blog, I’ve written a lot about the fascinating research on various mechanisms of resistance in this disease. They range from specific mutations emerging to activation of COT or MEK and others in response to therapy. There are a number of questions we can ask that need to be addressed:

  • Do we need a better/more potent BRAF inhibitor?
  • Do we need a better/more potent MEK inhibitor?
  • What other combinations and targets can be explored?
  • Is timing and dosing important? (e.g. continuous vs. intermittent dosing)
  • And many others…

At the recent AACR Molecular Targets meeting in Boston I chatted with Dr Bill Sellers, who is the Global Head of Oncology Research at the Novartis Institutes for Biomedical Research (NIBR) and oversees the drug discovery efforts in this space for Novartis.

Yesterday we highlighted NIBR’s work with CDK4/6 inhibition in breast cancer, but this compound may have surprising utility in metastatic melanoma.

Novartis also have several other melanoma agents in their pipeline in the clinic, including a BRAF inhibitor (LGX818), a MEK inhibitor (MEK162) and more recently, an Mdm2 inhibitor (CGM097) in preclinical development.

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