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Namespace Prefixes

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n4http://linked.opendata.cz/ontology/sukl/drug/

Statements

Subject Item
n2:DB05773
rdf:type
n3:Drug
n3:description
Ado-trastuzumab emtansine, formerly called Trastuzumab-DM1 (T-DM1) as an investigational drug, is a first-in-class HER2 antibody drug conjugate (ADC) comprised of Genentech's trastuzumab antibody linked to ImmunoGen's cell-killing agent, DM1. T-DM1 combines two strategies-- anti-HER2 activity and targeted intracellular delivery of the potent anti-microtubule agent, DM1 (a maytansine derivative)--to produce cell cycle arrest and apoptosis. Ado-trastuzumab emtansine is marketed under the brand name Kadcyla and is indicated for use in HER2-positive, metastatic breast cancer patients who have already used taxane and/or trastuzumab for metastatic disease or had their cancer recur within 6 months of adjuvant treatment. The FDA label has two precautions. First that ado-trastuzumab emtansine and trastuzumab cannot be interchanged. Second that there is a black box warning of serious side effects such as hepatotoxicity, embryo-fetal toxicity, and cardiac toxicity.
n3:dosage
n17:271B4658-363D-11E5-9242-09173F13E4C5 n17:271B4659-363D-11E5-9242-09173F13E4C5
n3:generalReferences
# FDA label. # Lewis Phillips GD, Li G, Dugger DL, Crocker LM, Parsons KL, Mai E, Blattler WA, Lambert JM, Chari RV, Lutz RJ, Wong WL, Jacobson FS, Koeppen H, Schwall RH, Kenkare-Mitra SR, Spencer SD, Sliwkowski MX: Targeting HER2-positive breast cancer with trastuzumab-DM1, an antibody-cytotoxic drug conjugate. Cancer Res. 2008 Nov 15;68(22):9280-90. doi: 10.1158/0008-5472.CAN-08-1776. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/19010901
n3:group
approved
n3:halfLife
Ado-trastuzumab emtansine has a long half life of about 4 days.
n3:indication
Used in HER2-positive, metastatic breast cancer patients who have already used taxane and/or trastuzumab for metastatic disease or had their cancer recur within 6 months of adjuvant treatment.
owl:sameAs
n13:DB05773
dcterms:title
ado-trastuzumab emtansine
adms:identifier
n11:50242-087-01 n14:Trastuzumab_emtansine n15:DB05773 n16:D09980
n3:mechanismOfAction
Ado-trastuzumab emtansine is a HER2 antibody drug conjugate. The antibody portion is trastuzumab, which is humanized anti-HER2 IgG1, and produced in the mammalian Chinese Hamster Ovary cells. The drug portion is DM1, which is a maytansine derivative that inhibits microtubules. These two portions are covalently connected by 4-[N-maleimidomethyl] cyclohexane-1-carboxylate (MCC), which is a stable thioether linker. Together MCC and DM1 are called emtansine and are produced by chemical synthesis. Ado-trastuzumab emtansine binds to the HER2 receptor’s sub-domain IV and goes into the cell by receptor-mediated endocytosis. Lysosomes degrade ado-trastuzumab emtansine and release DM1. DM1 binds to tubulin in microtubules and inhibits microtubule function producing cell arrest and apoptosis. As well, similar to trastuzumab, in vitro studies have shown that both HER2 receptor signalling inhibition and antibody-dependent cytotoxicity are mediated by ado-trastuzumab emtansine.
n3:routeOfElimination
The route of elimination has not yet been fully elucidated.
n3:synonym
trastuzumab-MCC-DM1 trastuzumab emtansine Trastuzumab-DM1
n3:toxicity
The FDA label includes a black box warning of serious side effects such as hepatotoxicity, embryo-fetal toxicity, and cardiac toxicity.
n3:volumeOfDistribution
The volume of distribution of ado-trastuzumab emtansine is about 3.13 L.
n3:proteinBinding
DM1 has a plasma protein binding value of 93%.
foaf:page
n7:kadcyla-drug.htm n8:ado-trastuzumab-emtansine.html
n4:hasATCCode
n5:L01XC14
n3:absorption
The absorption/ bioavailability should be close to 100% since ado-trastuzumab emtansine is administered IV.
n3:affectedOrganism
Humans and other mammals
n3:casRegistryNumber
1018448-65-1
n3:category
n3:clearance
After IV infusion, ado-trastuzumab emtansine has a clearance of 0.68 L/day.