Brigatinib

12.1 Mechanism of Action Brigatinib is a tyrosine kinase inhibitor (TKI) with in vitro activity at clinically achievable concentrations against multiple kinases including ALK, ROS1, insulin-like growth factor-1 receptor (IGF-1R), and FLT-3 as well as EGFR deletion and point mutations. Brigatinib inhibited autophosphorylation of ALK and ALK-mediated phosphorylation of the downstream signaling proteins STAT3, AKT, ERK1/2, and S6 in in vitro and in vivo assays. Brigatinib also inhibited the in vitro proliferation of cell lines expressing EML4-ALK and NPM-ALK fusion proteins and demonstrated dose-dependent inhibition of EML4-ALK-positive NSCLC xenograft growth in mice. At clinically achievable concentrations (≤500 nM), brigatinib inhibited the in vitro viability of cells expressing EML4-ALK and 17 mutant forms associated with resistance to ALK inhibitors including crizotinib, as well as EGFR-Del (E746-A750), ROS1-L2026M, FLT3-F691L, and FLT3-D835Y. Brigatinib exhibited in vivo antitumor activity against 4 mutant forms of EML4-ALK, including G1202R and L1196M mutants identified in NSCLC tumors in patients who have progressed on crizotinib. Brigatinib also reduced tumor burden and prolonged survival in mice implanted intracranially with an ALK-driven tumor cell line.

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 )

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 treatment, withhold ALUNBRIG until recovery to baseline. If ILD/pneumonitis is suspected, resume at next lower dose (Table 1); otherwise, resume at same dose. If ILD/pneumonitis recurs, permanently discontinue ALUNBRIG. Grade 3 or 4 Permanently discontinue ALUNBRIG for ILD/pneumonitis. Hypertension [see Warnings and Precautions (5.2) ] Grade 3 hypertension (SBP greater than or equal to 160 mmHg or DBP greater than or equal to 100 mmHg, medical intervention indicated, more than one antihypertensive drug, or more intensive therapy than previously used indicated) Withhold ALUNBRIG until hypertension has recovered to Grade 1 or less (SBP less than 140 mmHg and DBP less than 90 mmHg), then resume ALUNBRIG at the same dose. Recurrence: withhold ALUNBRIG until recovery to Grade 1 or less, and resume at next lower dose (Table 1) or permanently discontinue treatment. Grade 4 hypertension (life-threatening consequences, urgent intervention indicated) Withhold ALUNBRIG until recovery to Grade 1 or less, and resume at next lower dose (Table 1) or permanently discontinue treatment. Recurrence: permanently discontinue ALUNBRIG for recurrence of Grade 4 hypertension. Bradycardia (HR less than 60 bpm) [see Warnings and Precautions (5.3) ] Symptomatic bradycardia Withhold ALUNBRIG until recovery to asymptomatic bradycardia or to a resting heart rate of 60 bpm or above. If a concomitant medication known to cause bradycardia is identified and discontinued or dose-adjusted, resume ALUNBRIG at same dose upon recovery to asymptomatic bradycardia or to resting heart rate of 60 bpm or above. If no concomitant medication known to cause bradycardia is identified, or if contributing concomitant medications are not discontinued or dose-adjusted, resume ALUNBRIG at next lower dose (Table 1) upon recovery to asymptomatic bradycardia or to resting heart rate of 60 bpm or above. Bradycardia with life-threatening consequences, urgent intervention indicated Permanently discontinue ALUNBRIG if no contributing

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, oral mucosal blistering and stomatitis 13 0.7 8.8 0 Dyspepsia 8 0 16 0.7 Gastroesophageal reflux disease 0.7 0 11 0 Skin and Subcutaneous Tissue Disorders Rash Includes dermatitis, dermatitis acneiform, dermatitis bullous, dermatitis contact, drug eruption, erythema, palmar-plantar erythrodysesthesia syndrome, rash, rash erythematous, rash macular, rash maculo-papular, rash papular, rash pruritic, rash pustular, toxic skin eruption, urticaria 40 2.9 17 0 Pruritus Included pruritus, allergic pruritus, and generalized pruritus 20 0.7 5.8 0.7 Respiratory, Thoracic and Mediastinal Disorders Cough 35 0 20 0 Dyspnea Include dyspnea and exertional dyspnea 25 2.9 22 Includes Grade 5 events 3.6 ILD/Pneumonitis 5.1 2.9 2.2 0.7 Pulmonary embolism 2.2 2.2 5.8 2.9 Vascular Disorders Hypertension Includes hypertension and systolic hypertension 32 13 8 2.9 General Disorders and Administration Site Conditions Fatigue Includes asthenia and fatigue 32 1.5 40 2.2 Edema Includes angioedema, eye swelling, e

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) ] .