Binimetinib
FDA Drug Information • Also known as: Mektovi
- Brand Names
- Mektovi
- Dosage Form
- POWDER
- Product Type
- BULK INGREDIENT
Description
11 DESCRIPTION Binimetinib is a kinase inhibitor. The chemical name is 5-[(4-bromo-2-fluorophenyl)amino]-4-fluoro-N-(2-hydroxyethoxy)-1-methyl-1H-benzimidazole-6-carboxamide. The molecular formula is C 17 H 15 BrF 2 N 4 O 3 and the molecular weight is 441.2 daltons. The chemical structure of binimetinib is shown below: Binimetinib is a white to slightly yellow powder. In aqueous media, binimetinib is slightly soluble at pH 1, very slightly soluble at pH 2, and practically insoluble at pH 4.5 and higher. MEKTOVI (binimetinib) tablets for oral use contain 15 mg of binimetinib with the following inactive ingredients: lactose monohydrate, microcrystalline cellulose, croscarmellose sodium, magnesium stearate (vegetable source), and colloidal silicon dioxide. The coating contains polyvinyl alcohol, polyethylene glycol, titanium dioxide, talc, ferric oxide yellow, and ferrosoferric oxide. Chemical Structure
What Is Binimetinib Used For?
1 INDICATIONS AND USAGE MEKTOVI is a kinase inhibitor indicated:
in combination with encorafenib, for the treatment of patients with unresectable or metastatic melanoma with a BRAF V600E or V600K mutation, as detected by an FDA-approved test. ( 1.1 , 2.1 ) in combination with encorafenib, for the treatment of adult patients with metastatic non-small cell lung cancer (NSCLC) with a BRAF V600E mutation, as detected by an FDA-approved test. ( 1.2 , 2.1 ) 1.1 BRAF V600E or V600K Mutation-Positive Unresectable or Metastatic Melanoma MEKTOVI is indicated, in combination with encorafenib, for the treatment of patients with unresectable or metastatic melanoma with a BRAF V600E or V600K mutation, as detected by an FDA-approved test [see Dosage and Administration (2.1) ] . 1.2 BRAF V600E Mutation-Positive Metastatic Non-Small Cell Lung Cancer (NSCLC) MEKTOVI is indicated, in combination with encorafenib, for the treatment of adult patients with metastatic non-small cell lung cancer (NSCLC) with a BRAF V600E mutation, as detected by an FDA-approved test. [see Dosage and Administration (2.1) ] .Dosage and Administration
2 DOSAGE AND ADMINISTRATION Melanoma
Confirm the presence of BRAF V600E or V600K mutation in tumor specimens prior to the initiation of MEKTOVI. ( 2.1 ) The recommended dose is 45 mg orally twice daily in combination with encorafenib. Take MEKTOVI with or without food. ( 2.2 ) For patients with moderate or severe hepatic impairment the recommended dose is 30 mg orally twice daily. ( 2.4 , 8.6 ) NSCLC Confirm the presence of BRAF V600E mutation in tumor or plasma specimens prior to initiating MEKTOVI. ( 2.1 ) The recommended dose is 45 mg orally twice daily in combination with encorafenib. Take MEKTOVI with or without food. ( 2.2 ) 2.1 Patient Selection BRAF V600E or V600K Mutation-Positive Unresectable or Metastatic Melanoma Confirm the presence of a BRAF V600E or V600K mutation in tumor specimens prior to initiating MEKTOVI [see Clinical Studies (14) ] . Information on FDA-approved tests for the detection of BRAF V600E and V600K mutations in melanoma is available at: http://www.fda.gov/CompanionDiagnostics . BRAF V600E Mutation-Positive Metastatic Non-Small Cell Lung Cancer (NSCLC) Confirm the presence of a BRAF V600E mutation in tumor or plasma specimens prior to initiating MEKTOVI [see Clinical Studies (14.2) ] . If no mutation is detected in a plasma specimen, test tumor tissue. Information on FDA-approved tests for the detection of BRAF V600E mutations in NSCLC is available at: http://www.fda.gov/CompanionDiagnostics . 2.2 Recommended Dosage and Administration The recommended dosage of MEKTOVI is 45 mg orally taken twice daily, approximately 12 hours apart, in combination with encorafenib until disease progression or unacceptable toxicity. Refer to the encorafenib prescribing information for recommended encorafenib dosing information. MEKTOVI may be taken with or without food [see Clinical Pharmacology (12.3) ] . Do not take a missed dose of MEKTOVI within 6 hours of the next dose of MEKTOVI. Do not take an additional dose if vomiting occurs after MEKTOVI administration but continue with the next scheduled dose. 2.3 Dosage Modifications for Adverse Reactions If encorafenib is permanently discontinued, discontinue MEKTOVI. Dose reductions for adverse reactions associated with MEKTOVI are presented in Table 1. Table 1: Recommended Dose Reductions for MEKTOVI for Adverse Reactions Action Recommended Dose First Dose Reduction 30 mg orally twice daily Subsequent Modification Permanently discontinue if unable to tolerate MEKTOVI 30 mg orally twice daily Dosage modifications for adverse reactions associated with MEKTOVI are presented in Table 2. Table 2: Recommended Dosage Modifications for MEKTOVI for Adverse Reactions Severity of Adverse Reaction National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 4.03. Dose Modification for MEKTOVI Cardiomyopathy [see Warnings and Precautions (5.2) ] Asymptomatic, absolute decrease in LVEF of greater than 10% from baseline that is also below lower limit of...Side Effects (Adverse Reactions)
6 ADVERSE REACTIONS The following adverse reactions are described elsewhere in the labeling:
New Primary Malignancies [see Warnings and Precautions (5.1) ] Cardiomyopathy [see Warnings and Precautions (5.2) ] Venous Thromboembolism [see Warnings and Precautions (5.3) ] Ocular Toxicities [see Warnings and Precautions (5.4) ] Interstitial Lung Disease [see Warnings and Precautions (5.5) ] Hepatotoxicity [see Warnings and Precautions (5.6) ] Rhabdomyolysis [see Warnings and Precautions (5.7) ] Hemorrhage [see Warnings and Precautions (5.8) ] Embryo-Fetal Toxicity [see Warnings and Precautions (5.9) ] Risks Associated with Combination Treatment [see Warnings and Precautions (5.10) ] Melanoma: Most common adverse reactions (≥25%) for MEKTOVI, in combination with encorafenib, are fatigue, nausea, diarrhea, vomiting, and abdominal pain. ( 6.1 ) NSCLC: Most common adverse reactions (≥25%) for MEKTOVI, in combination with encorafenib, are fatigue, nausea, diarrhea, musculoskeletal pain, vomiting, abdominal pain, visual impairment, constipation, dyspnea, rash, and cough. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at 1-800-438-1985 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The data described in WARNINGS AND PRECAUTIONS reflect exposure of 192 patients with BRAF V600 mutation-positive unresectable or metastatic melanoma to MEKTOVI 45 mg twice daily in combination with encorafenib 450 mg once daily in a randomized open-label, active-controlled trial (COLUMBUS) [see Clinical Studies (14.1) ] or, for rare events, exposure of 690 patients with BRAF V600 mutation-positive melanoma to MEKTOVI 45 mg twice daily in combination with encorafenib once daily across multiple clinical trials (NCT03915951, NCT01909453). The pooled safety population described in the WARNINGS AND PRECAUTIONS also reflect exposure of 98 patients with BRAF V600E mutation-positive metastatic non-small cell lung cancer to MEKTOVI 45 mg twice daily and encorafenib 450 mg once daily until disease progression or unacceptable toxicity in PHAROS [see Clinical Studies (14.2) ] . BRAF V600E or V600K Mutation-Positive Unresectable or Metastatic Melanoma The data described below reflect exposure of 192 patients with BRAF V600 mutation-positive unresectable or metastatic melanoma to MEKTOVI (45 mg twice daily) in combination with encorafenib (450 mg once daily) in COLUMBUS. The COLUMBUS trial [see Clinical Studies (14.1) ] excluded patients with a history of Gilbert's syndrome, abnormal left ventricular ejection fraction, prolonged QTc (>480 msec), uncontrolled hypertension, and history or current evidence of retinal vein occlusion. The median duration of exposure was 11.8 months for patients treated with MEKTOVI in combination with encorafenib and 6.2 months for patients treated with vemurafenib. The most common (≥25%) adverse reactions in patients receiving MEKTOVI in combination with encorafenib were fatigue, nausea, diarrhea, vomiting, and abdominal pain. Adverse reactions leading to dose interruptions of MEKTOVI occurred in 33% of patients receiving MEKTOVI in combination with encorafenib; the most common were left ventricular dysfunction (6%) and serous retinopathy (5%). Adverse reactions leading to dose reductions of MEKTOVI occurred in 19% of patients receiving MEKTOVI in combination with encorafenib; the most common were left ventricular dysfunction (3%), serous retinopathy (3%), and colitis (2%). Five percent (5%) of patients receiving MEKTOVI in combination with encorafenib experienced an adverse reaction that resulted in permanent discontinuation of MEKTOVI. The most common adverse reactions resulting in permanent discontinuation of...Drug Interactions
7 DRUG INTERACTIONS No clinically important drug interactions have been observed with MEKTOVI.
Contraindications
4 CONTRAINDICATIONS None. None. ( 4 )
Pregnancy and Breastfeeding
8.1 Pregnancy Risk Summary Based on findings from animal reproduction studies and its mechanism of action [see Clinical Pharmacology (12.1) ] , MEKTOVI can cause fetal harm when administered to a pregnant woman. There are no available clinical data on the use of MEKTOVI during pregnancy. In animal reproduction studies, oral administration of binimetinib during the period of organogenesis was embryotoxic and an abortifacient in rabbits at doses greater than or equal to those resulting in exposures approximately 5 times the human exposure at the clinical dose of 45 mg twice daily (see Data ) . Advise pregnant women and females of reproductive potential of the potential risk to a fetus. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data In reproductive toxicity studies, administration of binimetinib to rats during the period of organogenesis resulted in maternal toxicity, decreased fetal weights and increased variations in ossification at doses ≥30 mg/kg/day (approximately 37 times the human exposure based on AUC at the recommended clinical dose of 45 mg twice daily). In pregnant rabbits, administration of binimetinib during the period of organogenesis resulted in maternal toxicity, decreased fetal body weights, an increase in malformations, and increased post-implantation loss, including total loss of pregnancy at doses ≥10 mg/kg/day (approximately 5 times the human exposure based on AUC at the recommended clinical dose of 45 mg twice daily). There was a significant increase in fetal ventricular septal defects and pulmonary trunk alterations at 20 mg/kg/day of binimetinib (less than 8 times the human exposure at the recommended clinical dose of 45 mg twice daily).
Overdosage
10 OVERDOSAGE Since binimetinib is 97% bound to plasma proteins, hemodialysis is likely to be ineffective in the treatment of overdose with MEKTOVI.
How Supplied
16 HOW SUPPLIED/STORAGE AND HANDLING MEKTOVI (binimetinib) is supplied as 15 mg yellow/dark yellow, unscored biconvex oval film-coated tablets debossed with a stylized "A" on one side and "15" on the other side, available in bottles of 180 tablets (NDC 70255-010-02). Store at 20°C to 25°C (68°F to 77°F); excursions permitted between 15°C and 30°C (59°F and 86°F) [see USP Controlled Room Temperature].
About This Information
This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.
What are side effects?
Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.
What are drug interactions?
Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.