How Nerlynx Works

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HER2-positive breast cancers make too much of the HER2 protein. The HER2 protein sits on the surface of cancer cells and receives signals that tell the cancer to grow and spread. About one out of every four breast cancers is HER2-positive. HER2-positive breast cancers tend to be more aggressive and harder to treat than HER2-negative breast cancers.

Nerlynx is an irreversible pan-HER inhibitor. Nerlynx fights HER2-positive breast cancer by blocking the cancer cells’ ability to receive growth signals.

Nerlynx is a targeted therapy, but unlike Herceptin (chemical name: trastuzumab), Kadcyla (chemical name: T-DM1 or ado-trastuzumab emtansine), and Perjeta (chemical name: pertuzumab), it is not immune targeted therapy. Immune targeted therapies are versions of naturally occurring antibodies that work like antibodies made by our immune systems. Nerlynx is a chemical compound, not an antibody.

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