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UPDATE 1-EU Agency Backs Approval of New GlaxoSmithKline Melanoma Drug

"GlaxoSmithKline's melanoma drug Mekinist - one of several drugs being sold to Novartis under an asset swap deal - has been recommended for approval by European regulators.


"The European Medicines Agency (EMA) said on Friday its experts had backed the drug, also known as trametinib, as a treatment for unresectable or metastatic melanoma in patients with a mutation of a gene known as BRAF."

Cancer Commons's insight:

Reuters  |  Apr 25, 2014

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New Treatments for Advanced Melanoma Presented at AAD

New Treatments for Advanced Melanoma Presented at AAD | Melanoma Dispatch | Scoop.it

"In recent years, the FDA has approved new drugs for the treatment of advanced melanoma, which has presented new ways to treat the disease, according to a presentation at the American Academy of Dermatology annual meeting.


“ 'In the last four years there have been four new drugs that have been FDA-approved for melanoma and what’s even more exciting is that they really speak to two new ways to treating melanoma,' Allan C. Halpern, MD, MSc, chief of dermatology service at Memorial Sloan-Kettering Cancer Center, told Healio.com.


"The most recent FDA approval, in January, was the combination of a BRAF inhibitor and a MEK inhibitor for treating advanced melanoma."

Cancer Commons's insight:

Healio  |  Mar 23, 2014

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Trial Supports Recent US FDA Approval of New Melanoma Combo Treatment

Trial Supports Recent US FDA Approval of New Melanoma Combo Treatment | Melanoma Dispatch | Scoop.it

The US Food and Drug Administration just granted accelerated approval for a treatment that combines two drugs that target melanomas with BRAF mutations — but this was contingent results of an ongoing phase III clinical trial. The drugs are the BRAF inhibitor dabrafenib (Tafinlar) and the MEK inhibitor trametinib (Mekinist). Now the latest results of the trial are in and they look good. This combination treatment is not approved elsewhere in the world, and the trial included 423 people from Australia, Europe, and North and South America. Final results are expected later this year and will be presented at a scientific meeting. In addition, another trial is comparing this combination treatment to the BRAF inhibitor vemurafenib (Zelboraf), which is also FDA-approved.

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GlaxoSmithKline │ Jan 24, 2014

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Competitors Collaborate on Melanoma Combo Treatment

Competitors Collaborate on Melanoma  Combo Treatment | Melanoma Dispatch | Scoop.it

Two pharmaceutical giants are teaming up on a phase I/II clinical trial to see if their anti-melanoma drugs work better together than on their own. The drugs are GlaxoSmithKline's Mekinist (trametinib), a U.S. Food and Drug Administration (FDA)-approved MEK inhibitor (a drug that targets MEK proteins), and Pfizer's palbociclib, an experimental inhibitor of proteins called cyclin dependent kinases. These proteins make cells divide and are abnormally active in many cancers; the FDA has fast-tracked the review of using palbociclib to treat breast cancer. In addition, GlaxoSmithKline is already testing the combination of Mekinist with dabrafenib, the company's experimental BRAF inhibitor.

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Fierce Biotech│Nov 21, 2013

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FDA Asked to Approve New Combination Treatment for Melanoma

FDA Asked to Approve New Combination Treatment for Melanoma | Melanoma Dispatch | Scoop.it

Two new drugs that target melanomas were just approved by the U.S. Food and Drug Administration (FDA) in May, and the drug developer has already filed for approval to use them in combination. The drugs are dabrafenib (Tafinlar), a BRAF inhibitor, and trametinib (Mekinist), a MEK inhibitor, and both are made by GlaxoSmithKline. The combination treatment request is based on promising results of a phase I/II trial, which showed that the two drugs work better together than dabrafenib does alone. Results of a phase III trial of the combination therapy are expected later this year.

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PharmaTimes│Jul 9, 2013

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Conference Abstract - MAP Kinase Pathway Alterations in BRAF-Mutant Melanoma Patients With Acquired Resistance to Combined RAF/MEK Inhibition

Conference Abstract - MAP Kinase Pathway Alterations in BRAF-Mutant Melanoma Patients With Acquired Resistance to Combined RAF/MEK Inhibition | Melanoma Dispatch | Scoop.it

"Treatment of BRAF-mutant melanoma with combined dabrafenib and trametinib, which target RAF and the downstream MAP–ERK kinase (MEK)1 and MEK2 kinases, respectively, improves progression-free survival and response rates compared with dabrafenib monotherapy. Mechanisms of clinical resistance to combined RAF/MEK inhibition are unknown. This study represents an initial clinical genomic study of acquired resistance to combined RAF/MEK inhibition in BRAF-mutant melanoma, using WES and RNA-seq. The presence of diverse resistance mechanisms suggests that serial biopsies and genomic/molecular profiling at the time of resistance may ultimately improve the care of patients with resistant BRAF-mutant melanoma by specifying tailored targeted combinations to overcome specific resistance mechanisms."


Editor's note: We previously covered the benefits of a dabrafenib/trametinib combo for advanced-stage melanoma. However, some patients' tumors become resistant to this drug combination and new treatment routes need to be considered. This study is exploring how molecular testing of specific genetic mutations in patients' tumors might be used to help guide treatment decisions after they become resistant to the dabrafenib/trametinib combo.

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MDLinx  |  Apr 8, 2014

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Immunotherapy, BRAF Inhibitor Sequence Affected Outcomes in Metastatic Melanoma

Immunotherapy, BRAF Inhibitor Sequence Affected Outcomes in Metastatic Melanoma | Melanoma Dispatch | Scoop.it

"Prior treatment with immunotherapy did not limit response to BRAF inhibitors among patients with metastatic melanoma, according to results of a retrospective study.


"However, patients who underwent initial treatment with BRAF inhibitors and subsequently received immunotherapy with ipilimumab (Yervoy, Bristol-Myers Squibb) demonstrated poorer outcomes, results showed.


"Patients with BRAF-positive metastatic melanoma have several treatment options, including BRAF inhibitors vemurafenib (Zelboraf, Hoffmann-La Roche) and dabrafenib  (Taflinar, GlaxoSmithKline), the MEK inhibitor trametinib (Mekinist, GlaxoSmithKline), and the immunotherapy agents ipilimumab and interleukin-2. Yet, there are limited data with regard to optimal sequencing, according to researchers."

Cancer Commons's insight:

Healio  |  Mar 14, 2014

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Krishan Maggon 's curator insight, March 15, 2014 4:19 AM

Prior treatment with BRAF inhibitors reduced subsequent response to immunotherapy. Prior treatment with ipilimumab had no effect on response to BRAF inhibitors.

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US FDA OKs Combo Treatment for Melanomas with BRAF Mutations

US FDA OKs Combo Treatment for Melanomas with BRAF Mutations | Melanoma Dispatch | Scoop.it

Good news for people with melanomas that have BRAF mutations — the US Food and Drug administration just greenlighted using two targeted treatments at the same time. The two targeted treatments are the BRAF inhibitor Tafinlar (dabrafenib) and the MEK inhibitor Mekinist (trametinib), and both were previously FDA-approved for separate use. Melanomas often become resistant to BRAF inhibitors, and adding the MEK inhibitor could prevent or stave off this resistance.

Cancer Commons's insight:

Reuters  |  Jan 9, 2014

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Speedy Review for Melanoma Combo Treatment

The U.S. Food and Drug Administration (FDA) has granted a priority review of whether two melanoma drugs work better together. The drugs are a BRAF inhibitor called Tafinlar (dabrafenib) and a MEK inhibitor called Mekinist (trametinib); both are already FDA-approved for use separately. Tumors, however, often become resistant to BRAF inhibitors, growing back after an initial period of shrinking. The hope is that adding a MEK inhibitor will prevent this resistance. The FDA's ruling on this combination targeted treatment is expected in January 2014.

Cancer Commons's insight:

Reuters│Sep 16, 2013

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FDA Greenlights Two New Targeted Treatments for Melanoma

FDA Greenlights Two New Targeted Treatments for Melanoma | Melanoma Dispatch | Scoop.it

Good news for people with melanomas that have spread—the U.S. Food and Drug Administration just approved two new drugs that target tumors with common mutations. The drugs are dabrafenib (Tafinlar), a BRAF inhibitor, and trametinib (Mekinist), an MEK inhibitor. Developed by the pharmaceutical firm GlaxoSmithKline, both drugs target BRAF V600E mutations, which occur in about half of melanoma tumors. In addition, trametinib also targets V600K mutations, which are the next most common BRAF abnormalities. While these drugs have been tested in combination, using them together is not yet approved. The FDA also okayed a new test for the BRAF V600E mutation that is made by diagnostics firm bioMerieux.

Cancer Commons's insight:

MedPage Today | May 29, 2013

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