General Information of Drug (ID: DMBESUA)

Drug Name
Tucatinib
Synonyms
Irbinitinib; 937263-43-9; ONT-380; UNII-234248D0HH; 234248D0HH; N6-(4,4-Dimethyl-4,5-dihydrooxazol-2-yl)-N4-(3-methyl-4-((1,2,4)triazolo(1,5-a)pyridin-7-yloxy)phenyl)quinazoline-4,6-diamine; 4,6-Quinazolinediamine, N6-(4,5-dihydro-4,4-dimethyl-2-oxazolyl)-N4-(3-methyl-4-((1,2,4)triazolo(1,5-a)pyridin-7-yloxy)phenyl)-; ONT 380; 4,6-QuinazolinediaMine, N6-(4,5-dihydro-4,4-diMethyl-2-oxazolyl)-N4-[3-Methyl-4-([1,2,4]triazolo[1,5-a]pyridin-7-yloxy)phenyl]-; Tucatinib [USAN:INN]; 6-DIAMINE
Indication
Disease Entry ICD 11 Status REF
HER2-positive breast cancer 2C60-2C65 Approved [1]
Gastric adenocarcinoma 2B72 Phase 2/3 [2]
Structure
3D MOL 2D MOL
#Ro5 Violations (Lipinski): 0 Molecular Weight (mw) 480.5
Topological Polar Surface Area (xlogp) 4
Rotatable Bond Count (rotbonds) 6
Hydrogen Bond Donor Count (hbonddonor) 2
Hydrogen Bond Acceptor Count (hbondacc) 8
ADMET Property
Absorption AUC
The area under the plot of plasma concentration (AUC) of drug is 7120 mcgh/L [3]
Absorption Cmax
The maximum plasma concentration (Cmax) of drug is 1120 mcg/L [3]
Absorption Tmax
The time to maximum plasma concentration (Tmax) is 1-4 h [3]
Clearance
The apparent clearance of drug is 148 L/h [3]
Elimination
In a study of radiolabled tucatinib, about 86% of the total dose was excreted in the feces and 4.1% was found in the urine [3]
Half-life
The concentration or amount of drug in body reduced by one-half in 5.38 hours [4]
Metabolism
The drug is metabolized via the CYP2C8 with some contributions from CYP3A [3]
Vd
The volume of distribution (Vd) of drug is 1670 L [3]
Chemical Identifiers
Formula
C26H24N8O2
IUPAC Name
6-N-(4,4-dimethyl-5H-1,3-oxazol-2-yl)-4-N-[3-methyl-4-([1,2,4]triazolo[1,5-a]pyridin-7-yloxy)phenyl]quinazoline-4,6-diamine
Canonical SMILES
CC1=C(C=CC(=C1)NC2=NC=NC3=C2C=C(C=C3)NC4=NC(CO4)(C)C)OC5=CC6=NC=NN6C=C5
InChI
InChI=1S/C26H24N8O2/c1-16-10-17(5-7-22(16)36-19-8-9-34-23(12-19)28-15-30-34)31-24-20-11-18(4-6-21(20)27-14-29-24)32-25-33-26(2,3)13-35-25/h4-12,14-15H,13H2,1-3H3,(H,32,33)(H,27,29,31)
InChIKey
SDEAXTCZPQIFQM-UHFFFAOYSA-N
Cross-matching ID
PubChem CID
51039094
CAS Number
937263-43-9
DrugBank ID
DB11652
TTD ID
D09GRX
ACDINA ID
D01510

Molecular Interaction Atlas of This Drug


Drug Therapeutic Target (DTT)
DTT Name DTT ID UniProt ID MOA REF
Erbb2 tyrosine kinase receptor (HER2) TT6EO5L ERBB2_HUMAN Inhibitor [1]
Molecular Interaction Atlas (MIA) Jump to Detail Molecular Interaction Atlas of This Drug

Molecular Expression Atlas of This Drug

The Studied Disease HER2-positive breast cancer
ICD Disease Classification 2C60-2C65
Molecule Name Molecule Type Gene Name p-value Fold-Change Z-score
Erbb2 tyrosine kinase receptor (HER2) DTT ERBB2 5.67E-03 -1.26 -2.05
Molecular Expression Atlas (MEA) Jump to Detail Molecular Expression Atlas of This Drug

Drug-Drug Interaction (DDI) Information of This Drug

Coadministration of a Drug Treating the Same Disease as Tucatinib
DDI Drug Name DDI Drug ID Severity Mechanism Disease REF
Talazoparib DM1KS78 Moderate Decreased clearance of Tucatinib due to the transporter inhibition by Talazoparib. Breast cancer [2C60-2C6Y] [15]
HKI-272 DM6QOVN Major Decreased metabolism of Tucatinib caused by HKI-272 mediated inhibition of CYP450 enzyme. Breast cancer [2C60-2C6Y] [16]
LY2835219 DM93VBZ Major Decreased metabolism of Tucatinib caused by LY2835219 mediated inhibition of CYP450 enzyme. Breast cancer [2C60-2C6Y] [17]
Coadministration of a Drug Treating the Disease Different from Tucatinib (Comorbidity)
DDI Drug Name DDI Drug ID Severity Mechanism Comorbidity REF
Remdesivir DMBFZ6L Moderate Increased risk of hepatotoxicity by the combination of Tucatinib and Remdesivir. 1D6YCoronavirus Disease 2019 [1D6YCoronavirus Disease 2019] [18]
Ivosidenib DM8S6T7 Moderate Increased metabolism of Tucatinib caused by Ivosidenib mediated induction of CYP450 enzyme. Acute myeloid leukaemia [2A60] [19]
Gilteritinib DMWQ4MZ Major Decreased metabolism of Tucatinib caused by Gilteritinib mediated inhibition of CYP450 enzyme. Acute myeloid leukaemia [2A60] [20]
Oliceridine DM6MDCF Major Decreased metabolism of Tucatinib caused by Oliceridine mediated inhibition of CYP450 enzyme. Acute pain [MG31] [21]
ABT-492 DMJFD2I Moderate Decreased clearance of Tucatinib due to the transporter inhibition by ABT-492. Bacterial infection [1A00-1C4Z] [22]
Pexidartinib DMS2J0Z Major Decreased metabolism of Tucatinib caused by Pexidartinib mediated inhibition of CYP450 enzyme. Bone/articular cartilage neoplasm [2F7B] [23]
PF-04449913 DMSB068 Major Decreased metabolism of Tucatinib caused by PF-04449913 mediated inhibition of CYP450 enzyme. Chronic myelomonocytic leukaemia [2A40] [24]
Osilodrostat DMIJC9X Major Decreased metabolism of Tucatinib caused by Osilodrostat mediated inhibition of CYP450 enzyme. Cushing syndrome [5A70] [25]
Polatuzumab vedotin DMF6Y0L Major Decreased metabolism of Tucatinib caused by Polatuzumab vedotin mediated inhibition of CYP450 enzyme. Diffuse large B-cell lymphoma [2A81] [26]
Ingrezza DMVPLNC Major Additive CNS depression effects by the combination of Tucatinib and Ingrezza. Dystonic disorder [8A02] [27]
Eslicarbazepine DMZREFQ Moderate Increased metabolism of Tucatinib caused by Eslicarbazepine mediated induction of CYP450 enzyme. Epilepsy/seizure [8A61-8A6Z] [22]
Bay 80-6946 DMLOS5R Major Decreased clearance of Tucatinib due to the transporter inhibition by Bay 80-6946. Follicular lymphoma [2A80] [28]
Tazemetostat DMWP1BH Major Decreased metabolism of Tucatinib caused by Tazemetostat mediated inhibition of CYP450 enzyme. Follicular lymphoma [2A80] [29]
Ripretinib DM958QB Major Decreased metabolism of Tucatinib caused by Ripretinib mediated inhibition of CYP450 enzyme. Gastrointestinal stromal tumour [2B5B] [18]
Avapritinib DMK2GZX Major Decreased metabolism of Tucatinib caused by Avapritinib mediated inhibition of CYP450 enzyme. Gastrointestinal stromal tumour [2B5B] [30]
MK-1439 DM215WE Moderate Increased metabolism of Tucatinib caused by MK-1439 mediated induction of CYP450 enzyme. Human immunodeficiency virus disease [1C60-1C62] [22]
TP-434 DM5A31S Minor Decreased metabolism of Tucatinib caused by TP-434 mediated inhibition of CYP450 enzyme. Infectious gastroenteritis/colitis [1A40] [31]
Berotralstat DMWA2DZ Major Decreased clearance of Tucatinib due to the transporter inhibition by Berotralstat. Innate/adaptive immunodeficiency [4A00] [32]
Pemigatinib DM819JF Major Decreased metabolism of Tucatinib caused by Pemigatinib mediated inhibition of CYP450 enzyme. Liver cancer [2C12] [33]
Brigatinib DM7W94S Major Decreased metabolism of Tucatinib caused by Brigatinib mediated inhibition of CYP450 enzyme. Lung cancer [2C25] [34]
Lurbinectedin DMEFRTZ Major Decreased metabolism of Tucatinib caused by Lurbinectedin mediated inhibition of CYP450 enzyme. Lung cancer [2C25] [35]
PF-06463922 DMKM7EW Major Decreased metabolism of Tucatinib caused by PF-06463922 mediated inhibition of CYP450 enzyme. Lung cancer [2C25] [36]
Pralsetinib DMWU0I2 Major Decreased metabolism of Tucatinib caused by Pralsetinib mediated inhibition of CYP450 enzyme. Lung cancer [2C25] [37]
Capmatinib DMYCXKL Major Decreased metabolism of Tucatinib caused by Capmatinib mediated inhibition of CYP450 enzyme. Lung cancer [2C25] [38]
Selpercatinib DMZR15V Major Decreased metabolism of Tucatinib caused by Selpercatinib mediated inhibition of CYP450 enzyme. Lung cancer [2C25] [21]
Calaspargase pegol DMQZBXI Moderate Increased risk of hepatotoxicity by the combination of Tucatinib and Calaspargase pegol. Malignant haematopoietic neoplasm [2B33] [39]
IPI-145 DMWA24P Major Decreased metabolism of Tucatinib caused by IPI-145 mediated inhibition of CYP450 enzyme. Mature B-cell leukaemia [2A82] [40]
Acalabrutinib DM7GCVW Major Decreased metabolism of Tucatinib caused by Acalabrutinib mediated inhibition of CYP450 enzyme. Mature B-cell lymphoma [2A85] [41]
Selumetinib DMC7W6R Major Decreased metabolism of Tucatinib caused by Selumetinib mediated inhibition of CYP450 enzyme. Melanoma [2C30] [42]
LGX818 DMNQXV8 Major Decreased metabolism of Tucatinib caused by LGX818 mediated inhibition of CYP450 enzyme. Melanoma [2C30] [43]
Ubrogepant DM749I3 Major Decreased metabolism of Tucatinib caused by Ubrogepant mediated inhibition of CYP450 enzyme. Migraine [8A80] [44]
Rimegepant DMHOAUG Moderate Decreased metabolism of Tucatinib caused by Rimegepant mediated inhibition of CYP450 enzyme. Migraine [8A80] [45]
Siponimod DM2R86O Major Decreased metabolism of Tucatinib caused by Siponimod mediated inhibition of CYP450 enzyme. Multiple sclerosis [8A40] [18]
Deflazacort DMV0RNS Major Decreased metabolism of Tucatinib caused by Deflazacort mediated inhibition of CYP450 enzyme. Muscular dystrophy [8C70] [30]
Fedratinib DM4ZBK6 Major Decreased metabolism of Tucatinib caused by Fedratinib mediated inhibition of CYP450 enzyme. Myeloproliferative neoplasm [2A20] [30]
Entrectinib DMMPTLH Major Decreased metabolism of Tucatinib caused by Entrectinib mediated inhibition of CYP450 enzyme. Non-small cell lung cancer [2C25] [30]
S-297995 DM26IH8 Moderate Decreased metabolism of Tucatinib caused by S-297995 mediated inhibition of CYP450 enzyme. Opioid use disorder [6C43] [30]
Rucaparib DM9PVX8 Moderate Decreased metabolism of Tucatinib caused by Rucaparib mediated inhibition of CYP450 enzyme. Ovarian cancer [2C73] [46]
MK-4827 DMLYGH4 Moderate Decreased clearance of Tucatinib due to the transporter inhibition by MK-4827. Ovarian cancer [2C73] [22]
Istradefylline DM20VSK Major Decreased metabolism of Tucatinib caused by Istradefylline mediated inhibition of CYP450 enzyme. Parkinsonism [8A00] [47]
Abametapir DM2RX0I Moderate Decreased metabolism of Tucatinib caused by Abametapir mediated inhibition of CYP450 enzyme. Pediculosis [1G00] [48]
Lefamulin DME6G97 Major Decreased clearance of Tucatinib due to the transporter inhibition by Lefamulin. Pneumonia [CA40] [49]
Relugolix DMK7IWL Major Decreased clearance of Tucatinib due to the transporter inhibition by Relugolix. Prostate cancer [2C82] [50]
Darolutamide DMV7YFT Moderate Decreased metabolism of Tucatinib caused by Darolutamide mediated inhibition of CYP450 enzyme. Prostate cancer [2C82] [51]
Upadacitinib DM32B5U Major Decreased metabolism of Tucatinib caused by Upadacitinib mediated inhibition of CYP450 enzyme. Rheumatoid arthritis [FA20] [52]
Voxelotor DMCS6M5 Major Decreased metabolism of Tucatinib caused by Voxelotor mediated inhibition of CYP450 enzyme. Sickle-cell disorder [3A51] [53]
Telotristat ethyl DMDIYFZ Moderate Increased metabolism of Tucatinib caused by Telotristat ethyl mediated induction of CYP450 enzyme. Small intestine developmental anomaly [DA90] [19]
Larotrectinib DM26CQR Major Decreased metabolism of Tucatinib caused by Larotrectinib mediated inhibition of CYP450 enzyme. Solid tumour/cancer [2A00-2F9Z] [18]
LEE011 DMMX75K Major Decreased metabolism of Tucatinib caused by LEE011 mediated inhibition of CYP450 enzyme. Solid tumour/cancer [2A00-2F9Z] [30]
Fostamatinib DM6AUHV Moderate Decreased metabolism of Tucatinib caused by Fostamatinib mediated inhibition of CYP450 enzyme. Thrombocytopenia [3B64] [54]
Lusutrombopag DMH6IKO Moderate Decreased clearance of Tucatinib due to the transporter inhibition by Lusutrombopag. Thrombocytopenia [3B64] [22]
As-1670542 DMV05SW Moderate Decreased metabolism of Tucatinib caused by As-1670542 mediated inhibition of CYP450 enzyme. Thrombocytopenia [3B64] [22]
Elagolix DMB2C0E Moderate Increased metabolism of Tucatinib caused by Elagolix mediated induction of CYP450 enzyme. Uterine fibroid [2E86] [19]
Fluticasone DMGCSVF Major Decreased metabolism of Tucatinib caused by Fluticasone mediated inhibition of CYP450 enzyme. Vasomotor/allergic rhinitis [CA08] [55]
Betrixaban DM2C4RF Moderate Decreased clearance of Tucatinib due to the transporter inhibition by Betrixaban. Venous thromboembolism [BD72] [56]
⏷ Show the Full List of 55 DDI Information of This Drug

Drug Inactive Ingredient(s) (DIG) and Formulation(s) of This Drug

DIG
DIG Name DIG ID PubChem CID Functional Classification
Potassium chloride E00074 4873 Tonicity agent
Crospovidone E00626 Not Available Disintegrant
Ferric hydroxide oxide yellow E00539 23320441 Colorant
Magnesium stearate E00208 11177 lubricant
Polyethylene glycol 4000 E00654 Not Available Coating agent; Diluent; Ointment base; Plasticizing agent; Solvent; Suppository base; lubricant
Polyvinyl alcohol E00666 Not Available Coating agent; Emulsion stabilizing agent; Film/Membrane-forming agent
Sodium bicarbonate E00424 516892 Alkalizing agent; Diluent
Sodium chloride E00077 5234 Diluent; Tonicity agent
Talc E00520 16211421 Anticaking agent; Diluent; Glidant; lubricant
Titanium dioxide E00322 26042 Coating agent; Colorant; Opacifying agent
Hydrophobic colloidal silica E00285 24261 Anticaking agent; Emulsion stabilizing agent; Glidant; Suspending agent; Viscosity-controlling agent
Cellulose microcrystalline E00698 Not Available Adsorbent; Suspending agent; Diluent
Copovidone E00693 Not Available Film/membrane-forming agent; Modified-release agent; Binding agent
⏷ Show the Full List of 13 Pharmaceutical Excipients of This Drug
Pharmaceutical Formulation
Formulation Name Drug Dosage Dosage Form Route
Tucatinib 50 mg tablet 50 mg Tablet Oral
Tucatinib 150 mg tablet 150 mg Tablet Oral
Jump to Detail Pharmaceutical Formulation Page of This Drug

References

1 Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health Human Services. 2020
2 ClinicalTrials.gov (NCT04499924) Tucatinib, Trastuzumab, Ramucirumab, and Paclitaxel Versus Paclitaxel and Ramucirumab in Previously Treated HER2+ Gastroesophageal Cancer (MOUNTAINEER-02). U.S. National Institutes of Health.
3 FDA approved products: Tukysa (tucatinib) oral tablets
4 Phase I Study of ONT-380, a HER2 Inhibitor, in Patients with HER2(+)-Advanced Solid Tumors, with an Expansion Cohort in HER2(+) Metastatic Breast Cancer (MBC). Clin Cancer Res. 2017 Jul 15;23(14):3529-3536. doi: 10.1158/1078-0432.CCR-16-1496. Epub 2017 Jan 4.
5 Triple negative breast cancer--current status and prospective targeted treatment based on HER1 (EGFR), TOP2A and C-MYC gene assessment. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 2009 Mar;153(1):13-7.
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7 Boehringer Ingelheim. Product Development Pipeline. June 2 2009.
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