"The U.S. Food and Drug Administration today approved Cometriq (cabozantinib) to treat medullary thyroid cancer that has spread to other parts of the body (metastasized).
Medullary thyroid cancer develops in cells in the thyroid gland that m"...
PERFORATIONS AND FISTULAS, and HEMORRHAGE
Perforations and fistulas: Gastrointestinal perforations occurred in 3% and fistula formation in 1% of COMETRIQ™ -treated patients. Discontinue COMETRIQ for perforation or for fistula formation [See WARNINGS AND PRECAUTIONS].
Hemorrhage: Severe, sometimes fatal, hemorrhage including hemoptysis and gastrointestinal hemorrhage occurred in 3% of COMETRIQ- treated patients. Monitor patients for signs and symptoms of bleeding. Do not administer COMETRIQ to patients with severe hemorrhage [See WARNINGS AND PRECAUTIONS].
COMETRIQ is the (S)-malate salt of cabozantinib. Cabozantinib (S)-malate is described chemically as N-(4-(6,7-dimethoxyquinolin-4-yloxy)phenyl)-N'-(4-fluorophenyl)cyclopropane- 1,1-dicarboxamide, (2S)-hydroxybutanedioate. The molecular formula is C28H24FN3O5•C4H6O5 and the molecular weight is 635.6 Daltons as malate salt. The chemical structure of cabozantinib (S)-malate salt is:
Cabozantinib (S)-malate salt is a white to off-white solid that is practically insoluble in aqueous media.
COMETRIQ (cabozantinib) capsules are supplied as printed hard gelatin capsules containing cabozantinib (S)-malate equivalent to 20 mg or 80 mg cabozantinib and the following inactive ingredients: silicified microcrystalline cellulose, croscarmellose sodium, sodium starch glycolate, fumed silica, and stearic acid.
The grey gelatin capsule shells contain black iron oxide and titanium dioxide and the Swedish orange gelatin capsule shells contain red iron oxide, and titanium dioxide. The printing ink contains shellac glaze, black iron oxide, N-butyl alcohol, isopropyl alcohol, propylene glycol, and ammonium hydroxide.
What are the possible side effects of cabozantinib (Cometriq)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Some people taking cabozantinib have developed a perforation (a hole or tear) or a fistula (an abnormal passageway) within the stomach or intestines. Call your doctor if you have severe stomach pain, or if you feel like you are choking and gagging when you eat or drink.
Stop using cabozantinib and call your doctor at once if you have:
- bloody or tarry stools, coughing up blood or vomit that looks...
Last reviewed on RxList: 12/6/2012
This monograph has been modified to include the generic and brand name in many instances.
Additional Cometriq Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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