Overview
11 DESCRIPTION Sonidegib is a Hh pathway inhibitor. The molecular formula for sonidegib phosphate is C 26 H 26 F 3 N 3 O 3 • 2H 3 PO 4 . The molecular weight is 681.49 daltons. The chemical name is N-[6-(cis-2,6-dimethylmorpholin-4-yl)pyridine-3-yl]-2-methyl-4’-(trifluoromethoxy) [1,1’-biphenyl]-3-carboxamide diphosphate.
Mechanism of Action
12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Sonidegib is an inhibitor of the Hh pathway. Sonidegib binds to and inhibits Smoothened, a transmembrane protein involved in Hh signal transduction. 12.2 Pharmacodynamics Cardiac Electrophysiology At a dose of 800 mg once daily, sonidegib does not prolong the QTc interval. 12.3 Pharmacokinetics Sonidegib exhibited dose-proportional increases in the area under the curve (AUC) and the maximal concentration (C max ) over the dose range of 100 mg to 400 mg, but less than dose-proportional increases at doses greater than 400 mg. Steady-state was reached approximately 4 months after starting ODOMZO and the estimated accumulation at steady-state was 19-fold.
Indications
- 1 INDICATIONS AND USAGE ODOMZO (sonidegib) is indicated for the treatment of adult patients with locally advanced basal cell carcinoma (BCC) that has recurred following surgery or radiation therapy, or those who are not candidates for surgery or radiation therapy. ODOMZO is a hedgehog pathway inhibitor indicated for the treatment of adult patients with locally advanced basal cell carcinoma (BCC) that has recurred following surgery or radiation therapy, or those who are not candidates for surgery or radiation therapy. ( 1 )
Common Doses
- 200 mg
Dosage
2 DOSAGE AND ADMINISTRATION Recommended dosage: 200 mg orally once daily taken on an empty stomach, at least 1 hour before or 2 hours after a meal. ( 2.2 ) 2.1 Important Safety Information Verify the pregnancy status of females of reproductive potential prior to initiating ODOMZO [see Use in Specific Populations (8.1 , 8.3 )] . 2.2 Recommended Dosage The recommended dosage of ODOMZO is 200 mg taken orally once daily on an empty stomach, at least 1 hour before or 2 hours after a meal, administered until disease progression or unacceptable toxicity [see Clinical Pharmacology (12.3) ].
Black Box Warning
WARNING: EMBRYO-FETAL TOXICITY ODOMZO can cause embryo-fetal death or severe birth defects when administered to a pregnant woman. ODOMZO is embryotoxic, fetotoxic, and teratogenic in animals [see Warnings and Precautions (5.1) and Use in Specific Populations (8.1) ] . Verify the pregnancy status of females of reproductive potential prior to initiating therapy. Advise females of reproductive potential to use effective contraception during treatment with ODOMZO and for at least 20 months after the last dose [see Warnings and Precautions (5.1) and Use in Specific Populations (8.3) ] .
Contraindications
- 4 CONTRAINDICATIONS None. None. ( 4 )
Side Effects
- 6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Musculoskeletal Adverse Reactions [see Warnings and Precautions (5.2) ] . The most common adverse reactions occurring in ≥10% of patients are muscle spasms, alopecia, dysgeusia, fatigue, nausea, musculoskeletal pain, diarrhea, decreased weight, decreased appetite, myalgia, abdominal pain, headache, pain, vomiting, and pruritus. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Sun Pharmaceutical Industries, Inc. at 1-800-406-7984 or FDA at 1-800-FDA-1088 or www.fda.
Interactions
- 7 DRUG INTERACTIONS CYP3A inhibitors: Avoid strong CYP3A inhibitors. Avoid long-term (greater than 14 days) use of moderate CYP3A inhibitors. ( 7.1 ) CYP3A inducers: Avoid strong and moderate CYP3A inducers. ( 7.1 ) 7.1 Effects of Other Drugs on ODOMZO Strong and Moderate CYP3A Inhibitors Avoid concomitant administration of ODOMZO with strong CYP3A inhibitors [see Clinical Pharmacology (12.3) ]. Avoid concomitant administration of ODOMZO with moderate CYP3A inhibitors.