Quizartinib
Generic Name: quizartinib
Brand Names:
Vanflyta
11 DESCRIPTION VANFLYTA (quizartinib) is a kinase inhibitor for oral use. The chemical name of quizartinib dihydrochloride is 1-(5- tert -butyl-1,2-oxazol-3-yl)-3-(4-{7-[2-(morpholin-4-yl)ethoxy]imidazo[2,1-b][1,3]benzothiazol-2-yl}phenyl)urea dihydrochloride. Quizartinib dihydrochloride is a white to off-white solid with a molecular formula of C 29 H 32 N 6 O 4 S∙2 HCl and a molecular weight of 633.6 for the salt and 560.7 for the free base.
Overview
11 DESCRIPTION VANFLYTA (quizartinib) is a kinase inhibitor for oral use. The chemical name of quizartinib dihydrochloride is 1-(5- tert -butyl-1,2-oxazol-3-yl)-3-(4-{7-[2-(morpholin-4-yl)ethoxy]imidazo[2,1-b][1,3]benzothiazol-2-yl}phenyl)urea dihydrochloride. Quizartinib dihydrochloride is a white to off-white solid with a molecular formula of C 29 H 32 N 6 O 4 S∙2 HCl and a molecular weight of 633.6 for the salt and 560.7 for the free base.
Uses
1 INDICATIONS AND USAGE VANFLYTA is indicated in combination with standard cytarabine and anthracycline induction and cytarabine consolidation, and as maintenance monotherapy following consolidation chemotherapy, for the treatment of adult patients with newly diagnosed acute myeloid leukemia (AML) that is FLT3 internal tandem duplication (ITD)-positive as detected by an FDA-approved test [see Dosage and Administration (2.1) and Clinical Studies (14) ] .
Dosage
2 DOSAGE AND ADMINISTRATION Take VANFLYTA tablets orally once daily with or without food at approximately the same time each day. ( 2.2 ) See Full Prescribing Information for recommended VANFLYTA dosage regimen and dosage modifications. ( 2.2 , 2.3 , 2.4 ) 2.1 Patient Selection Select patients for the treatment of AML with VANFLYTA based on the presence of FLT3-ITD mutation positivity [see Clinical Studies (14) ] . Information on FDA-approved tests for the detection of FLT3-ITD mutation in AML is available at: http://www.fda.gov/CompanionDiagnostics.
Side Effects
6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: QT Prolongation, Torsades de Pointes, and Cardiac Arrest [see Warnings and Precautions (5.1) ] The most common (>20%) adverse reactions, including laboratory abnormalities, are lymphocytes decreased, potassium decreased, albumin decreased, phosphorus decreased, alkaline phosphatase increased, magnesium decreased, febrile neutropenia, diarrhea, mucositis, nausea, calcium decreased, abdominal pain, sepsis, neutropenia, headache, creatine phosphokinase increased, vomiting, and upper respiratory tract infection. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Daiichi Sankyo, Inc. at 1-877-437-7763 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Interactions
7 DRUG INTERACTIONS Table 7: Effect of Other Drugs on VANFLYTA Strong CYP3A Inhibitors Clinical Impact VANFLYTA is a CYP3A substrate. Concomitant use of VANFLYTA with a strong CYP3A inhibitor increases quizartinib systemic exposure [see Clinical Pharmacology (12.3) ] , which may increase the risk of VANFLYTA adverse reactions. Prevention or Management Reduce the dosage of VANFLYTA [see Dosage and Administration (2.4) ]. Strong or Moderate CYP3A Inducers Clinical Impact Concomitant use of VANFLYTA with strong or moderate CYP3A inducers decreases quizartinib systemic exposure [see Clinical Pharmacology (12.3) ] , which may reduce VANFLYTA efficacy. Prevention or Management Avoid concomitant use of VANFLYTA with strong or moderate CYP3A inducers [see Clinical Pharmacology (12.3) ] .
Warnings
WARNING: QT PROLONGATION, TORSADES DE POINTES, and CARDIAC ARREST VANFLYTA prolongs the QT interval in a dose- and concentration-related manner [see Clinical Pharmacology (12.2) ] . Prior to VANFLYTA administration and periodically, monitor for hypokalemia or hypomagnesemia, and correct deficiencies. 5 WARNINGS AND PRECAUTIONS QT Prolongation, Torsades de Pointes, and Cardiac Arrest: Monitor electrocardiograms and levels of serum electrolytes. Reduce, interrupt, or permanently discontinue VANFLYTA as appropriate. ( 2.3 , 5.1 ) Embryo-Fetal Toxicity: VANFLYTA can cause fetal harm. Advise females of reproductive potential and males with female partners of reproductive potential of potential risk to a fetus and to use effective contraception. ( 5.3 , 8.1 , 8.3 ) 5.1 QT Prolongation, Torsades de Pointes, and Cardiac Arrest VANFLYTA prolongs the QT interval in a dose- and concentration-dependent manner. 4 CONTRAINDICATIONS VANFLYTA is contraindicated in patients with severe hypokalemia, severe hypomagnesemia, long QT syndrome, or in patients with a history of ventricular arrhythmias or torsades de pointes [see Warnings and Precautions (5.1) ].
Pregnancy
8.1 Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, VANFLYTA can cause embryo-fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1) ] . There are no available data on VANFLYTA use in pregnant women to evaluate for a drug-associated risk.
Storage
Store at 20°C to 25°C (68°F to 77°F); excursions permitted from 15°C to 30°C (59°F to 86°F) [See USP Controlled Room Temperature]. Tablet Strength Tablet Description Package Configuration NDC 17.7 mg White, round, film-coated, debossed with "DSC511" , 28-count bottle 65597-504-28 14-count bottle 65597-504-04 26.5 mg Yellow, round, film-coated, debossed with "DSC512" 28-count bottle 65597-511-28 14...
Frequently Asked Questions
What is Quizartinib used for?▼
1 INDICATIONS AND USAGE VANFLYTA is indicated in combination with standard cytarabine and anthracycline induction and cytarabine consolidation, and as maintenance monotherapy following consolidation chemotherapy, for the treatment of adult patients with newly diagnosed acute myeloid leukemia (AML) that is FLT3 internal tandem duplication (ITD)-positive as detected by an FDA-approved test [see Dosage and Administration (2.1) and Clinical Studies (14) ] .
What are the side effects of Quizartinib?▼
6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: QT Prolongation, Torsades de Pointes, and Cardiac Arrest [see Warnings and Precautions (5.1) ] The most common (>20%) adverse reactions, including laboratory abnormalities, are lymphocytes decreased, potassium decreased, albumin decreased, phosphorus decreased, alkaline phosphatase increased, magnesium decreased, febrile neutropenia, diarrhea, mucositis, nausea, calcium decreased, abdominal pain, sepsis, neutropenia, headache, creatine phosphokinase increased, vomiting, and upper respiratory tract infection. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Daiichi Sankyo, Inc. at 1-877-437-7763 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Can I take Quizartinib during pregnancy?▼
8.1 Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, VANFLYTA can cause embryo-fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1) ] . There are no available data on VANFLYTA use in pregnant women to evaluate for a drug-associated risk.
What are the important warnings for Quizartinib?▼
WARNING: QT PROLONGATION, TORSADES DE POINTES, and CARDIAC ARREST VANFLYTA prolongs the QT interval in a dose- and concentration-related manner [see Clinical Pharmacology (12.2) ] . Prior to VANFLYTA administration and periodically, monitor for hypokalemia or hypomagnesemia, and correct deficiencies. 5 WARNINGS AND PRECAUTIONS QT Prolongation, Torsades de Pointes, and Cardiac Arrest: Monitor electrocardiograms and levels of serum electrolytes. Reduce, interrupt, or permanently discontinue VANFLYTA as appropriate. ( 2.3 , 5.1 ) Embryo-Fetal Toxicity: VANFLYTA can cause fetal harm. Advise females of reproductive potential and males with female partners of reproductive potential of potential risk to a fetus and to use effective contraception. ( 5.3 , 8.1 , 8.3 ) 5.1 QT Prolongation, Torsades de Pointes, and Cardiac Arrest VANFLYTA prolongs the QT interval in a dose- and concentration-dependent manner. 4 CONTRAINDICATIONS VANFLYTA is contraindicated in patients with severe hypokalemia, severe hypomagnesemia, long QT syndrome, or in patients with a history of ventricular arrhythmias or torsades de pointes [see Warnings and Precautions (5.1) ].
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.