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CAS NO.: 937263-43-9
Chemical Formula: C26H24N8O2
Molecular Weight: 480.5000
DMF&GMP status: Please contact us for more details.
Tucatinib is an orally bioavailable inhibitor of the human epidermal growth factor receptor tyrosine kinase ErbB-2 (also called HER2) with potential antineoplastic activity. Tucatinib selectively binds to and inhibits the phosphorylation of ErbB-2, which may prevent the activation of ErbB-2 signal transduction pathways, resulting in growth inhibition and death of ErbB-2-expressing tumor cells. ErbB-2 is overexpressed in a variety of cancers and plays an important role in cellular proliferation and differentiation.

Tucatinbib is a kinase inhibitor drug used with [trastuzumab] and [capecitabine] in the treatment of unresectable or metastatic HER-2 positive breast cancer. It was developed by Seattle Genetics and approved by the FDA on April 17, 2020. Tucatinib is a promising new treatment for patients with metastatic breast cancer who have not responded adequately to other chemotherapy regimens.

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Active Ingredient Dosage Form; Route Strength Proprietary Name Applicant
Patent Data
Patent No. Patent Expiration Drug Substance Claim Drug Product Claim Patent Use Code
Exclusive Data
Exclusivity Code Exclusivity Expiration
NCE 04/17/2025
ODE-309 04/17/2027