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Pronunciation | /tuˈkætɪnɪb/ too-KAT-in-ib |
Trade names | Tukysa |
Other names | ONT-380, ARRY-380 |
AHFS/Drugs.com | Monograph |
MedlinePlus | a620032 |
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Routes of administration | By mouth |
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Chemical and physical data | |
Formula | C26H24N8O2 |
Molar mass | 480.532 g·mol−1 |
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Tucatinib, sold under the brand name Tukysa, is an anticancer medication used for the treatment of HER2-positive breast cancer. [3] [4] It is a small molecule inhibitor of HER2. [6] [7] It was developed by Array BioPharma and licensed to Cascadian Therapeutics (formerly Oncothyreon, subsequently part of Seattle Genetics). [8]
Common side effects include diarrhea, palmar-plantar erythrodysesthesia (burning or tingling discomfort in the hands and feet), nausea, fatigue, hepatotoxicity (liver damage), vomiting, stomatitis (inflammation of the mouth and lips), decreased appetite, abdominal pain, headache, anemia and rash. [9] [10] Tucatinib may cause harm to a developing fetus or baby. [9]
Tucatinib was approved for medical use in the United States in April 2020, [9] [10] [11] in Australia in August 2020, [1] and in the European Union in February 2021. [4]
Tucatinib is a kinase inhibitor indicated in combination with trastuzumab and capecitabine for the treatment of adults with advanced unresectable or metastatic HER2-positive breast cancer, including those with brain metastases, who have received one or more prior anti-HER2-based regimens in the metastatic setting. [3]
In the European Union, it is indicated in combination with trastuzumab and capecitabine for the treatment of adults with HER2‑positive locally advanced or metastatic breast cancer who have received at least two prior anti‑HER2 treatment regimens. [4]
In January 2023, the US Food and Drug Administration (FDA) granted accelerated approval to tucatinib in combination with trastuzumab for RAS wild-type HER2-positive unresectable or metastatic colorectal cancer that has progressed following fluoropyrimidine-, oxaliplatin-, and irinotecan-based chemotherapy. [12]
Two early stage clinical trials have reported encouraging results, both of which had options to enroll subjects with central nervous system (CNS) metastases. [6] [13] [14] [15] [16] HER2CLIMB is a Phase 2 randomized, double-blinded, placebo-controlled study of tucatinib in combination with trastuzumab and capecitabine in patients with pretreated, unresectable locally advanced or metastatic HER2-positive breast cancer. [17]
In April 2020, the U.S. Food and Drug Administration (FDA) approved tucatinib in combination with chemotherapy (trastuzumab and capecitabine) for the treatment of adults with advanced forms of HER2-positive breast cancer that can't be removed with surgery, or has spread to other parts of the body, including the brain, and who have received one or more prior treatments. [9] [10] [18]
The FDA collaborated with the Australian Therapeutic Goods Administration (TGA), Health Canada, Health Sciences Authority (HSA, Singapore) and Swissmedic (SMC, Switzerland) on the review. [9] This was the first Project Orbis partnership between the FDA, HSA and Swissmedic. [9] As of 17 April 2020 [update] , the application is still under review at the other agencies. [9]
Tucatinib is a kinase inhibitor meaning it blocks a type of enzyme (kinase) and helps prevent the cancer cells from growing. [9] Tucatinib is approved for treatment after adults have taken one or more anti-HER2-based regimens in the metastatic setting. [9] The FDA approved tucatinib based on the results of the HER2CLIMB trial (NCT02614794) enrolling 612 subjects who had HER2-positive advanced unresectable or metastatic breast cancer and had prior treatment with trastuzumab, pertuzumab and ado-trastuzumab emtansine (T-DM1). [9] [10] Subjects with previously treated and stable brain metastases, as well as those with previously treated and growing or untreated brain metastases, were eligible for the clinical trial, and 48% of enrolled subjects had brain metastases at the start of the trial. [9]
Subjects received either tucatinib 300 mg twice daily plus trastuzumab and capecitabine (tucatinib arm, n=410) or placebo plus trastuzumab and capecitabine (control arm, n=202). [10] The primary endpoint was progression-free survival (PFS), or the amount of time when there was no growth of the tumor, assessed by a blinded independent central review, evaluated in the initial 480 randomized patients. [9] [10] The median PFS in subjects who received tucatinib, trastuzumab, and capecitabine was 7.8 months (95% CI: 7.5, 9.6) compared to 5.6 months (95% CI: 4.2, 7.1) in those subjects who received placebo, trastuzumab, and capecitabine (HR 0.54; 95% CI: 0.42, 0.71; p<0.00001). [9] [10] Overall survival and PFS in subjects with brain metastases at baseline were key secondary endpoints. [9] The median overall survival in subjects who received tucatinib, trastuzumab, and capecitabine was 21.9 months (95% CI: 18.3, 31.0) compared to 17.4 months (95% CI: 13.6, 19.9) in subjects who received placebo, trastuzumab, and capecitabine (HR: 0.66; 95% CI: 0.50, 0.87; p=0.00480). [9] [10] The median PFS in subjects with brain metastases at baseline who received tucatinib, trastuzumab and capecitabine was 7.6 months (95% CI: 6.2, 9.5) compared to 5.4 months (95% CI: 4.1, 5.7) in subjects who received placebo, trastuzumab and capecitabine (HR: 0.48; 0.34, 0.69; p<0.00001). [9] [10]
The FDA granted the application for tucatinib priority review, breakthrough therapy, fast track, and orphan drug designations. [9] [10] [19] The FDA granted approval of Tukysa to Seattle Genetics, Inc. [9]
Tucatinib was denied entry into the Australian Pharmaceutical Benefits Scheme in March 2021, as "the incremental cost effectiveness ratio was unacceptably high at the proposed price". [20]
Tucatinib was approved for medical use in the United States in April 2020. [9] [10] [11]
Tucatinib was approved for medical use in Australia in August 2020. [1]
On 10 December 2020, the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) adopted a positive opinion, recommending the granting of a marketing authorization for the medicinal product Tukysa, intended for the treatment of HER2-positive locally advanced or metastatic breast cancer. [21] The applicant for this medicinal product is Seagen B.V. [21] Tucatinib was approved for medical use in the European Union in February 2021. [4]
Tucatinib is the International nonproprietary name. [22]
Trastuzumab, sold under the brand name Herceptin among others, is a monoclonal antibody used to treat breast cancer and stomach cancer. It is specifically used for cancer that is HER2 receptor positive. It may be used by itself or together with other chemotherapy medication. Trastuzumab is given by slow injection into a vein and injection just under the skin.
Sunitinib, sold under the brand name Sutent, is an anti-cancer medication. It is a small-molecule, multi-targeted receptor tyrosine kinase (RTK) inhibitor that was approved by the FDA for the treatment of renal cell carcinoma (RCC) and imatinib-resistant gastrointestinal stromal tumor (GIST) in January 2006. Sunitinib was the first cancer drug simultaneously approved for two different indications.
Lapatinib (INN), used in the form of lapatinib ditosylate (USAN) is an orally active drug for breast cancer and other solid tumours. It is a dual tyrosine kinase inhibitor which interrupts the HER2/neu and epidermal growth factor receptor (EGFR) pathways. It is used in combination therapy for HER2-positive breast cancer. It is used for the treatment of patients with advanced or metastatic breast cancer whose tumors overexpress HER2 (ErbB2).
Pertuzumab, sold under the brand name Perjeta, is a monoclonal antibody used in combination with trastuzumab and docetaxel for the treatment of metastatic HER2-positive breast cancer; it also used in the same combination as a neoadjuvant in early HER2-positive breast cancer.
Neratinib (INN), sold under the brand name Nerlynx, is a tyrosine kinase inhibitor anti-cancer medication used for the treatment of breast cancer.
Olaparib, sold under the brand name Lynparza, is a medication for the maintenance treatment of BRCA-mutated advanced ovarian cancer in adults. It is a PARP inhibitor, inhibiting poly ADP ribose polymerase (PARP), an enzyme involved in DNA repair. It acts against cancers in people with hereditary BRCA1 or BRCA2 mutations, which include some ovarian, breast, and prostate cancers.
Trastuzumab emtansine, sold under the brand name Kadcyla, is an antibody-drug conjugate consisting of the humanized monoclonal antibody trastuzumab (Herceptin) covalently linked to the cytotoxic agent DM1. Trastuzumab alone stops growth of cancer cells by binding to the HER2 receptor, whereas trastuzumab emtansine undergoes receptor-mediated internalization into cells, is catabolized in lysosomes where DM1-containing catabolites are released and subsequently bind tubulin to cause mitotic arrest and cell death. Trastuzumab binding to HER2 prevents homodimerization or heterodimerization (HER2/HER3) of the receptor, ultimately inhibiting the activation of MAPK and PI3K/AKT cellular signalling pathways. Because the monoclonal antibody targets HER2, and HER2 is only over-expressed in cancer cells, the conjugate delivers the cytotoxic agent DM1 specifically to tumor cells. The conjugate is abbreviated T-DM1.
Nivolumab, sold under the brand name Opdivo, is an anti-cancer medication used to treat a number of types of cancer. This includes melanoma, lung cancer, malignant pleural mesothelioma, renal cell carcinoma, Hodgkin lymphoma, head and neck cancer, urothelial carcinoma, colon cancer, esophageal squamous cell carcinoma, liver cancer, gastric cancer, and esophageal or gastroesophageal junction cancer. It is administered intravenously.
Margetuximab, sold under the brand name Margenza, is a chimeric IgG monoclonal antibody medication against HER2 used for the treatment of cancer.
Pembrolizumab, sold under the brand name Keytruda, is a humanized antibody used in cancer immunotherapy that treats melanoma, lung cancer, head and neck cancer, Hodgkin lymphoma, stomach cancer, cervical cancer, and certain types of breast cancer. It is administered by slow intravenous injection.
Copanlisib, sold under the brand name Aliqopa, is a medication used for the treatment of adults experiencing relapsed follicular lymphoma who have received at least two prior systemic therapies.
Durvalumab, sold under the brand name Imfinzi, is an FDA-approved immunotherapy for cancer, developed by Medimmune/AstraZeneca. It is a human immunoglobulin G1 kappa (IgG1κ) monoclonal antibody that blocks the interaction of programmed cell death ligand 1 (PD-L1) with the PD-1 (CD279).
Atezolizumab, sold under the brand name Tecentriq, is a monoclonal antibody medication used to treat urothelial carcinoma, non-small cell lung cancer (NSCLC), small cell lung cancer (SCLC), hepatocellular carcinoma and alveolar soft part sarcoma, but discontinued for use in triple-negative breast cancer (TNBC). It is a fully humanized, engineered monoclonal antibody of IgG1 isotype against the protein programmed cell death-ligand 1 (PD-L1).
Sacituzumab govitecan, sold under the brand name Trodelvy, is a Trop-2-directed antibody and topoisomerase inhibitor drug conjugate used for the treatment of metastatic triple-negative breast cancer and metastatic urothelial cancer.
Abemaciclib, sold under the brand name Verzenio among others, is a medication for the treatment of advanced or metastatic breast cancers. It was developed by Eli Lilly and it acts as a CDK inhibitor selective for CDK4 and CDK6.
Trastuzumab deruxtecan, sold under the brand name Enhertu, is an antibody-drug conjugate consisting of the humanized monoclonal antibody trastuzumab (Herceptin) covalently linked to the topoisomerase I inhibitor deruxtecan. It is licensed for the treatment of breast cancer or gastric or gastroesophageal adenocarcinoma. Trastuzumab binds to and blocks signaling through epidermal growth factor receptor 2 (HER2/neu) on cancers that rely on it for growth. Additionally, once bound to HER2 receptors, the antibody is internalized by the cell, carrying the bound deruxtecan along with it, where it interferes with the cell's ability to make DNA structural changes and replicate its DNA during cell division, leading to DNA damage when the cell attempts to replicate itself, destroying the cell.
Tatiana Michelle Prowell is an American medical oncologist specializing in breast cancer. She is an Associate Professor of Oncology at Johns Hopkins School of Medicine and Breast Cancer Scientific Liaison at the U.S. Food & Drug Administration.
Pertuzumab/trastuzumab/hyaluronidase, sold under the brand name Phesgo, is a fixed-dose combination medication to treat adults with HER2-positive breast cancer that has spread to other parts of the body, and for treatment of adults with early HER2-positive breast cancer. It contains pertuzumab, trastuzumab, and hyaluronidase–zzxf. It is injected under the skin via subcutaneous injection in the thigh. In the European Union, Phesgo contains the active ingredients pertuzumab and trastuzumab along with the enzyme vorhyaluronidase alfa.
Trastuzumab/hyaluronidase, sold under the brand name Herceptin SC among others, is a fixed-dose combination medication for the treatment of HER2-overexpressing breast cancer in adults. It is a combination of trastuzumab and hyaluronidase.
Nancy Lin is an American oncologist who works at the Dana-Farber Cancer Institute and is an Associate Professor of Medicine at Harvard Medical School. Her research considers new diagnostic strategies and treatment pathways for HER2 positive breast cancer.