New drug approved by FDA targets genetic mutations in tumors

2 Your Health

The FDA has approved the first drug that targets genetic mutations in tumors.

This new drug could have major impact on the way doctors treat more than a dozen different cancers.

Until now, most cancer drugs have treated tumors based on where they’re located in the body. This new drug does it based on genetics.

“We’ve shown that it works in any cancer, provided it has a specific mutation in a gene called ‘TRK’,” explained Dr. David Hyman, Memorial Sloan Kettering Cancer Center.

That includes 17 different malignancies, mostly rare cancers, but also a small portion of salivary gland tumors, lung and breast cancers. 

Dr. Hyman led the research.

“When you can figure out at the genetic level what makes a cancer tick, what’s driving its growth, and if you have a drug that effectively intervenes on that, then you can see dramatic – and immediate -responses,” he said.

Patients with otherwise incurable cancers saw their tumors disappear, often within days.

The drug, called Larotrectinib (lah-roh-TRECT-inib), is a pill taken twice a day.

Doctors say it’s a potential treatment for patients who have exhausted other options. They must be tested to see whether their tumors carry the mutation.

“For patients who have advanced, potentially incurable cancer, I would encourage them to talk to their doctors and see whether this form of testing may be right for them,” said Dr. Hyman.

Paving the way for the development of other cancer drugs based on genetics.

The new drug will not be inexpensive. Drug manufacturer Loxo Oncology announced the wholesale acquisition cost will be more than $32-thousand a month.

The company says it expects most insurers to cover the cost.

Copyright 2019 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

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