Brigatinib

FDA Drug Information • Also known as: Alunbrig

Brand Names: Alunbrig
Dosage Form: POWDER
Product Type: BULK INGREDIENT

Description

11 DESCRIPTION Brigatinib is a kinase inhibitor. The chemical name for brigatinib is 5-chloro-N 4 -[2-(dimethylphosphoryl)phenyl]-N 2 -{2-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}pyrimidine-2,4-diamine. The molecular formula is C 29 H 39 ClN 7 O 2 P which corresponds to a formula weight of 584.10 g/mol. Brigatinib has no chiral centers. The chemical structure is shown below: Brigatinib is an off-white to beige/tan solid. The pK a s were determined to be: 1.73 ± 0.02 (base), 3.65 ± 0.01 (base), 4.72 ± 0.01 (base), and 8.04 ± 0.01 (base). ALUNBRIG is supplied for oral use as film-coated tablets containing 180 mg, 90 mg or 30 mg of brigatinib and the following inactive ingredients: lactose monohydrate, microcrystalline cellulose, sodium starch glycolate (Type A), magnesium stearate, and hydrophobic colloidal silica. The tablet coating consists of talc, polyethylene glycol, polyvinyl alcohol, and titanium dioxide. Chemical Structure

What Is Brigatinib Used For?

1 INDICATIONS AND USAGE ALUNBRIG is indicated for the treatment of adult patients with anaplastic lymphoma kinase (ALK)-positive metastatic non-small cell lung cancer (NSCLC) as detected by an FDA-approved test [see Dosage and Administration (2.1) ] . ALUNBRIG is a kinase inhibitor indicated for the treatment of adult patients with anaplastic lymphoma kinase (ALK)-positive metastatic non-small cell lung cancer (NSCLC) as detected by an FDA-approved test. ( 1 , 2.1 )

Dosage and Administration

2 DOSAGE AND ADMINISTRATION 90 mg orally once daily for the first 7 days; then increase to 180 mg orally once daily. May be taken with or without food. ( 2.2 ) 2.1 Patient Selection Select patients for the treatment of metastatic NSCLC with ALUNBRIG based on the presence of ALK positivity in tumor specimens [see Clinical Studies (14) ] . Information on FDA-approved tests for the detection of ALK rearrangements in NSCLC is available at http://www.fda.gov/CompanionDiagnostics. 2.2 Recommended Dosage The recommended dosage for ALUNBRIG is: 90 mg orally once daily for the first 7 days; then increase the dose to 180 mg orally once daily. Administer ALUNBRIG until disease progression or unacceptable toxicity. If ALUNBRIG is interrupted for 14 days or longer for reasons other than adverse reactions, resume treatment at 90 mg once daily for 7 days before increasing to the previously tolerated dose. ALUNBRIG may be taken with or without food. Instruct patients to swallow tablets whole. Do not crush or chew tablets. If a dose of ALUNBRIG is missed or vomiting occurs after taking a dose, do not administer an additional dose and take the next dose of ALUNBRIG at the scheduled time. 2.3 Dosage Modifications for Adverse Reactions ALUNBRIG dosage reductions for adverse reactions are summarized in Table 1. Table 1: Recommended ALUNBRIG Dosage Reductions Dosage Reduction Dosage First Second Third 90 mg once daily 60 mg once daily permanently discontinue N/A Not applicable 180 mg once daily 120 mg once daily 90 mg once daily 60 mg once daily Once reduced for adverse reactions, do not subsequently increase the dosage of ALUNBRIG. Permanently discontinue ALUNBRIG if patients are unable to tolerate the 60 mg once daily dose. Recommendations for dosage modifications of ALUNBRIG for the management of adverse reactions are provided in Table 2. Table 2: Recommended ALUNBRIG Dosage Modifications for Adverse Reactions Adverse Reaction Severity Graded per National Cancer Institute Common Terminology Criteria for Adverse Events. Version 4.0 (NCI CTCAE v4). Dosage Modifications bpm = beats per minute; DBP = diastolic blood pressure; HR = heart rate; SBP = systolic blood pressure; ULN = upper limit of normal Interstitial Lung Disease (ILD) /Pneumonitis [see Warnings and Precautions (5.1 )] Grade 1 If new pulmonary symptoms occur during the first 7 days of treatment, withhold ALUNBRIG until recovery to baseline, then resume at same dose and do not escalate to 180 mg if ILD/pneumonitis is suspected. If new pulmonary symptoms occur after the first 7 days of treatment, withhold ALUNBRIG until recovery to baseline, then resume at same dose. If ILD/pneumonitis recurs, permanently discontinue ALUNBRIG. Grade 2 If new pulmonary symptoms occur during the first 7 days of treatment, withhold ALUNBRIG until recovery to baseline. Resume at next lower dose (Table 1) and do not dose escalate if ILD/pneumonitis is suspected. If new pulmonary symptoms occur after the first 7 days of...

Side Effects (Adverse Reactions)

6 ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the prescribing information: Interstitial Lung Disease (ILD)/Pneumonitis [see Warnings and Precautions (5.1) ] Hypertension [see Warnings and Precautions (5.2) ] Bradycardia [see Warnings and Precautions (5.3) ] Visual Disturbance [see Warnings and Precautions (5.4) ] Creatine Phosphokinase (CPK) Elevation [see Warnings and Precautions (5.5) ] Pancreatic Enzymes Elevation [see Warnings and Precautions (5.6) ] Hepatotoxicity [see Warnings and Precautions (5.7) ] Hyperglycemia [see Warnings and Precautions (5.8) ] Photosensitivity [see Warnings and Precautions (5.9) ] The most common adverse reactions (≥25%) with ALUNBRIG were diarrhea, fatigue, nausea, rash, cough, myalgia, headache, hypertension, vomiting, and dyspnea. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Takeda Pharmaceuticals at 1-844-217-6468 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. Advanced ALK-positive NSCLC Without Prior ALK-targeted Therapy In ALTA 1L, the safety of ALUNBRIG was evaluated in 136 patients with advanced ALK-positive NSCLC who had not previously received an ALK-targeted therapy [see Clinical Studies (14) ] . The median duration of treatment with ALUNBRIG when administered as 90 mg orally once daily for the first 7 days; then increased to 180 mg orally once daily, was 24.3 months. A total of 106 (78%) patients were exposed to ALUNBRIG for greater than or equal to 6 months including 92 (68%) patients exposed for greater than or equal to 1 year. The median relative dose intensity was 97% for ALUNBRIG. The study population (N = 275) characteristics were: median age 59 years (range: 27 to 89), age less than 65 years (68%), female (55%), White (59%), Asian (39%), Stage IV disease (93%), NSCLC adenocarcinoma histology (96%), never smoker (58%), ECOG Performance Status (PS) 0 or 1 (95%), and CNS metastases at baseline (30%) [see Clinical Studies (14) ] . Serious adverse reactions occurred in 33% of patients receiving ALUNBRIG. The most common serious adverse reactions were pneumonia (4.4%), ILD/pneumonitis (3.7%), pyrexia (2.9%), dyspnea (2.2%), pulmonary embolism (2.2%), and asthenia (2.2%). Fatal adverse reactions occurred in 2.9% of patients and included pneumonia (1.5%), cerebrovascular accident (0.7%), and multiple organ dysfunction syndrome (0.7%). In ALTA 1L, 13% of patients receiving ALUNBRIG permanently discontinued ALUNBRIG for adverse reactions. The most frequent adverse reactions that led to discontinuation were ILD/pneumonitis (3.7%) and pneumonia (2.2%). In ALTA 1L, 38% of patients required a dose reduction due to adverse reactions. The most common adverse reaction that led to dose reduction was increased creatine phosphokinase (15%), increased lipase (6.6%), increased amylase (4.4%), increased aspartate aminotransferase (2.2%), ILD/pneumonitis (2.2%) and hypertension (2.2%). Table 3 and Table 4 summarize the common adverse reactions and laboratory abnormalities observed in ALTA 1L. Table 3: Adverse Reactions in ≥10% (All Grades Per National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) version 4.03 ) or ≥2% (Grades 3-4) of Patients by Arm in ALTA 1L (N = 273) Adverse Reactions ALUNBRIG N = 136 Crizotinib N = 137 All Grades (%) Grades 3-4 (%) All Grades (%) Grades 3-4 (%) Gastrointestinal Disorders Diarrhea 53 2.2 57 2.9 Nausea 30 2.2 58 2.9 Abdominal pain Includes abdominal discomfort, abdominal distension, abdominal pain, abdominal pain lower, abdominal pain upper, and epigastric discomfort 24 0.7 33 3.6 Vomiting 21 0.7 44 2.2 Constipation 18 0 42 0 Stomatitis Includes aphthous ulcer, mouth ulceration,...

Drug Interactions

7 DRUG INTERACTIONS CYP3A Inhibitors : Avoid coadministration of ALUNBRIG with strong or moderate CYP3A inhibitors. If coadministration of a strong or moderate CYP3A inhibitor is unavoidable, reduce the dose of ALUNBRIG. ( 2.4 , 7.1 ) CYP3A Inducers : Avoid coadministration of ALUNBRIG with strong or moderate CYP3A inducers. If coadministration of a moderate CYP3A inducer is unavoidable, increase the dose of ALUNBRIG. ( 2.5 , 7.1 ) 7.1 Effect of Other Drugs on ALUNBRIG Strong or Moderate CYP3A Inhibitors Coadministration of ALUNBRIG with a strong or moderate CYP3A inhibitor increased brigatinib plasma concentrations, which may increase the incidence of adverse reactions [see Clinical Pharmacology (12.3) ] . Avoid coadministration of ALUNBRIG with strong or moderate CYP3A inhibitors. If coadministration of strong or moderate CYP3A inhibitors cannot be avoided, modify dose as recommended [see Dosage and Administration (2.4) ] . Strong or Moderate CYP3A Inducers Coadministration of ALUNBRIG with a strong or moderate CYP3A inducer decreased brigatinib plasma concentrations, which may decrease the efficacy of ALUNBRIG [see Clinical Pharmacology (12.3) ] . Avoid coadministration of ALUNBRIG with strong or moderate CYP3A inducers. If coadministration of moderate CYP3A inducers cannot be avoided, modify dose as recommended [see Dosage and Administration (2.5) ] .

Contraindications

4 CONTRAINDICATIONS None. None. ( 4 )

Pregnancy and Breastfeeding

8.1 Pregnancy Risk Summary Based on its mechanism of action and findings in animals, ALUNBRIG can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1) ] . There are no clinical data on the use of ALUNBRIG in pregnant women. Administration of brigatinib to pregnant rats during the period of organogenesis resulted in dose-related skeletal anomalies at doses as low as 12.5 mg/kg/day (approximately 0.7 times the human exposure by AUC at 180 mg once daily) as well as increased post-implantation loss, malformations, and decreased fetal body weight at doses of 25 mg/kg/day (approximately 1.26 times the human exposure at 180 mg once daily) or greater (see Data ) . Advise pregnant women 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 an embryo-fetal development study in which pregnant rats were administered daily doses of brigatinib during organogenesis, dose-related skeletal (incomplete ossification, small incisors) and visceral anomalies were observed at doses as low as 12.5 mg/kg/day (approximately 0.7 times the human exposure by AUC at 180 mg once daily). Malformations observed at 25 mg/kg/day (approximately 1.26 times the human AUC at 180 mg once daily) included anasarca (generalized subcutaneous edema), anophthalmia (absent eyes), forelimb hyperflexion, small, short and/or bent limbs, multiple fused ribs, bent scapulae, omphalocele (intestine protruding into umbilicus), and gastroschisis (intestines protruding through a defect in the abdominal wall) along with visceral findings of moderate bilateral dilatation of the lateral ventricles.

How Supplied

16 HOW SUPPLIED/STORAGE AND HANDLING 180 mg tablets: oval, white to off-white film-coated tablets with "U13" debossed on one side and plain on the other side; available in: Bottle of 23 tablets NDC 63020-180-23 Bottle of 30 tablets NDC 63020-180-30 90 mg tablets: oval, white to off-white film-coated tablets with "U7" debossed on one side and plain on the other side; available in: Bottle of 7 tablets NDC 63020-090-07 Bottle of 30 tablets NDC 63020-090-30 30 mg tablets: round, white to off-white film-coated tablets with "U3" debossed on one side and plain on the other side; available in: Bottle of 30 tablets NDC 63020-113-30 90 mg / 7 count tablets (NDC 63020-090-07) and 180 mg / 23 count tablets (NDC 63020-180-23) are also available in a single carton as a one-month initiation pack: One carton containing one bottle of 90 mg tablets (7 count) and one bottle of 180 mg tablets (23 count) NDC 63020-198-30 Store at controlled room temperature 20°C to 25°C (68°F to 77°F); excursions permitted between 15°C to 30°C (59°F to 86°F) (see USP).

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.