FDA approves Tafinlar and Mekinist for advanced melanoma

FDA OKs New Drugs, Diagnostic for Advanced Melanoma
FDA OKs New Drugs, Diagnostic for Advanced Melanoma

(HealthDay News) -- Two new drugs, Tafinlar (dabrafenib) and Mekinist (trametinib), have been approved by the U.S. Food and Drug Administration to treat advanced melanoma.

Melanoma, the leading cause of death from skin disease, is expected to be diagnosed in more than 76,000 people this year, and about 9,480 are expected to die from it, the FDA said in a news release. Tafinlar is approved for people with an abnormality in the BRAF V600E gene, while Mekinist is approved for people with a mutation in either the BRAF V600E or V600K genes, the agency said.

A newly approved companion diagnostic, the THxID BRAF test, will help determine if a person has a mutation in either gene.

The most serious side effects reported in people getting Tafinlar included increased risk of a less severe form of skin cancer (cutaneous squamous cell carcinoma), fever, low blood pressure, shaking chills, dehydration, kidney failure, and a rise in blood sugar, the agency said.

The most serious side effects of Mekinist included heart failure, lung inflammation, skin infection, and loss of vision.

Both drugs also could cause infertility or harm a developing fetus, the FDA said.

Tafinlar and Mekinist are marketed by North Carolina-based GlaxoSmithKline. The THxID BRAF test is manufactured by bioMérieux, based in France.

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