Vandetanib

Generic Name: vandetanib

Kinase Inhibitor [EPC]Over-the-Counter (OTC)

Brand Names:

Caprelsa

11 DESCRIPTION Vandetanib has the chemical name N-(4-bromo-2-fluorophenyl)-6-methoxy-7-[(1-methylpiperidin-4-yl) methoxy]quinazolin-4-amine. The structural and molecular formulas are: C 22 H 24 BrFN 4 O 2 Vandetanib has a molecular weight of 475.36 g/mol. Vandetanib exhibits pH-dependent solubility, with increased solubility at lower pH. Vandetanib is practically insoluble in water with a value of 0.008 mg/mL at 25°C (77°F).

Overview

11 DESCRIPTION Vandetanib has the chemical name N-(4-bromo-2-fluorophenyl)-6-methoxy-7-[(1-methylpiperidin-4-yl) methoxy]quinazolin-4-amine. The structural and molecular formulas are: C 22 H 24 BrFN 4 O 2 Vandetanib has a molecular weight of 475.36 g/mol. Vandetanib exhibits pH-dependent solubility, with increased solubility at lower pH. Vandetanib is practically insoluble in water with a value of 0.008 mg/mL at 25°C (77°F).

Uses

1 INDICATIONS AND USAGE CAPRELSA is indicated for the treatment of symptomatic or progressive medullary thyroid cancer in patients with unresectable locally advanced or metastatic disease. Use CAPRELSA in patients with indolent, asymptomatic or slowly progressing disease only after careful consideration of the treatment related risks of CAPRELSA. CAPRELSA is a kinase inhibitor indicated for the treatment of symptomatic or progressive medullary thyroid cancer in patients with unresectable locally advanced or metastatic disease. ( 1 ) Use CAPRELSA in patients with indolent, asymptomatic or slowly progressing disease only after careful consideration of the treatment related risks of CAPRELSA. ( 1 )

Dosage

2 DOSAGE AND ADMINISTRATION The recommended dose of CAPRELSA is 300 mg taken orally once daily until disease progression or unacceptable toxicity occurs. CAPRELSA may be taken with or without food. Do not take a missed dose within 12 hours of the next dose. Do not crush CAPRELSA tablets. The tablets can be dispersed in 2 ounces of water by stirring for approximately 10 minutes (will not completely dissolve). Do not use other liquids for dispersion. Swallow immediately after dispersion. Mix any remaining residue with 4 additional ounces of water and swallow. The dispersion can also be administered through nasogastric or gastrostomy tubes. 300 mg once daily. ( 2 ) CAPRELSA may be taken with or without food.

Side Effects

6 ADVERSE REACTIONS The following serious adverse reactions are discussed elsewhere in the label: QT Prolongation and Torsades de Pointes [see Boxed Warning , Warnings and Precautions (5.1) ] Severe Skin Reactions [see Warnings and Precautions (5.2) ] Interstitial Lung Disease [see Warnings and Precautions (5.3) ] Ischemic Cerebrovascular Events [see Warnings and Precautions (5.4) ] Hemorrhage [see Warnings and Precautions (5.5) ] Heart Failure [see Warnings and Precautions (5.6) ] Diarrhea [see Warnings and Precautions (5.7) ] Hypothyroidism [see Warnings and Precautions (5.8) ] Hypertension [see Warnings and Precautions (5.9) ] Reversible Posterior Leukoencephalopathy Syndrome [see Warnings and Precautions (5.10) ] Renal Failure [see Warnings and Precautions (5.12) ] Embryo-Fetal Toxicit...

Interactions

7 DRUG INTERACTIONS Avoid the use of strong CYP3A4 inducers because they may decrease CAPRELSA exposure. ( 7.1 ) Avoid the use of agents that prolong the QT interval. ( 5.11 ) 7.1 Effect of CYP3A4 Inducers on CAPRELSA Rifampicin, a strong CYP3A4 inducer, decreased vandetanib plasma concentrations. Avoid concomitant use of known strong CYP3A4 inducers during CAPRELSA therapy. Avoid concomitant use of St. John's wort because it can decrease vandetanib exposure unpredictably [see Clinical Pharmacology (12.3) ] . 7.2 Effect of CAPRELSA on OCT2 Transporter CAPRELSA increased plasma concentrations of metformin that is transported by the organic cation transporter type 2 (OCT2).

Warnings

WARNING: QT PROLONGATION, TORSADES DE POINTES, AND SUDDEN DEATH CAPRELSA can prolong the QT interval. Torsades de pointes and sudden death have occurred in patients receiving CAPRELSA. Do not use CAPRELSA in patients with hypocalcemia, hypokalemia, hypomagnesemia, or long QT syndrome. Correct hypocalcemia, hypokalemia and/or hypomagnesemia prior to CAPRELSA administration. Monitor electrolytes periodically. Avoid drugs known to prolong the QT interval [see Warnings and Precautions (5.1) ] . 5 WARNINGS AND PRECAUTIONS Prolonged QT interval, torsades de pointes, and sudden death: Monitor electrocardiograms and levels of serum potassium, calcium, magnesium and TSH. Reduce CAPRELSA dose as appropriate. ( 2.1 , 5.1 ) Severe skin reactions, including toxic epidermal necrolysis and Stevens-Johnson syndrome, some fatal. Discontinue CAPRELSA for severe skin reactions. ( 2.1 , 5.2 ) Interstitial lung disease (ILD), including fatalities: investigate unexplained non-specific respiratory signs and symptoms. Discontinue CAPRELSA for confirmed ILD. ( 2.1 , 5.3 ) Ischemic cerebrovascular events, hemorrhage, heart failure, diarrhea, hypertension, and reversible posterior leukoencephalopathy syndrome: Discontinue or interrupt CAPRELSA. 4 CONTRAINDICATIONS Do not use in patients with congenital long QT syndrome [see Boxed Warning ] . Do not use in patients with congenital long QT syndrome. ( 4 )

Pregnancy

8.1 Pregnancy Risk Summary Based on its mechanism of action and findings in animals, CAPRELSA can cause fetal harm when administered to a pregnant woman. There are no available human data on CAPRELSA use in pregnant women to inform a drug-associated risk. Vandetanib is embryotoxic, fetotoxic, and induced fetal malformations in rats at exposures less than or equal to those expected at the recommended human dose of 300 mg/day. Advise patients of the potential risk to a fetus. In the U.S.

Storage

16.1 Storage and Handling CAPRELSA tablets should be stored at room temperature between 68°F and 77°F (20°C and 25°C); excursions permitted to 59°F–86°F (15°C-30°C) [See USP controlled room temperature]. Procedures for proper handling and disposal of anticancer drugs should be considered. A guideline on this subject has been published. 1 Do not crush CAPRELSA tablets.

Frequently Asked Questions

What is Vandetanib used for?

1 INDICATIONS AND USAGE CAPRELSA is indicated for the treatment of symptomatic or progressive medullary thyroid cancer in patients with unresectable locally advanced or metastatic disease. Use CAPRELSA in patients with indolent, asymptomatic or slowly progressing disease only after careful consideration of the treatment related risks of CAPRELSA. CAPRELSA is a kinase inhibitor indicated for the treatment of symptomatic or progressive medullary thyroid cancer in patients with unresectable locally advanced or metastatic disease. ( 1 ) Use CAPRELSA in patients with indolent, asymptomatic or slowly progressing disease only after careful consideration of the treatment related risks of CAPRELSA. ( 1 )

What are the side effects of Vandetanib?

6 ADVERSE REACTIONS The following serious adverse reactions are discussed elsewhere in the label: QT Prolongation and Torsades de Pointes [see Boxed Warning , Warnings and Precautions (5.1) ] Severe Skin Reactions [see Warnings and Precautions (5.2) ] Interstitial Lung Disease [see Warnings and Precautions (5.3) ] Ischemic Cerebrovascular Events [see Warnings and Precautions (5.4) ] Hemorrhage [see Warnings and Precautions (5.5) ] Heart Failure [see Warnings and Precautions (5.6) ] Diarrhea [see Warnings and Precautions (5.7) ] Hypothyroidism [see Warnings and Precautions (5.8) ] Hypertension [see Warnings and Precautions (5.9) ] Reversible Posterior Leukoencephalopathy Syndrome [see Warnings and Precautions (5.10) ] Renal Failure [see Warnings and Precautions (5.12) ] Embryo-Fetal Toxicit...

Can I take Vandetanib during pregnancy?

8.1 Pregnancy Risk Summary Based on its mechanism of action and findings in animals, CAPRELSA can cause fetal harm when administered to a pregnant woman. There are no available human data on CAPRELSA use in pregnant women to inform a drug-associated risk. Vandetanib is embryotoxic, fetotoxic, and induced fetal malformations in rats at exposures less than or equal to those expected at the recommended human dose of 300 mg/day. Advise patients of the potential risk to a fetus. In the U.S.

What are the important warnings for Vandetanib?

WARNING: QT PROLONGATION, TORSADES DE POINTES, AND SUDDEN DEATH CAPRELSA can prolong the QT interval. Torsades de pointes and sudden death have occurred in patients receiving CAPRELSA. Do not use CAPRELSA in patients with hypocalcemia, hypokalemia, hypomagnesemia, or long QT syndrome. Correct hypocalcemia, hypokalemia and/or hypomagnesemia prior to CAPRELSA administration. Monitor electrolytes periodically. Avoid drugs known to prolong the QT interval [see Warnings and Precautions (5.1) ] . 5 WARNINGS AND PRECAUTIONS Prolonged QT interval, torsades de pointes, and sudden death: Monitor electrocardiograms and levels of serum potassium, calcium, magnesium and TSH. Reduce CAPRELSA dose as appropriate. ( 2.1 , 5.1 ) Severe skin reactions, including toxic epidermal necrolysis and Stevens-Johnson syndrome, some fatal. Discontinue CAPRELSA for severe skin reactions. ( 2.1 , 5.2 ) Interstitial lung disease (ILD), including fatalities: investigate unexplained non-specific respiratory signs and symptoms. Discontinue CAPRELSA for confirmed ILD. ( 2.1 , 5.3 ) Ischemic cerebrovascular events, hemorrhage, heart failure, diarrhea, hypertension, and reversible posterior leukoencephalopathy syndrome: Discontinue or interrupt CAPRELSA. 4 CONTRAINDICATIONS Do not use in patients with congenital long QT syndrome [see Boxed Warning ] . Do not use in patients with congenital long QT syndrome. ( 4 )

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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.