Bosutinib

5 WARNINGS AND PRECAUTIONS • Gastrointestinal Toxicity: Monitor and manage as necessary. Withhold, dose reduce, or discontinue bosutinib tablets. ( 2.3 , 5.1 ) • Myelosuppression: Monitor blood counts and manage as necessary. Withhold, dose reduce or discontinue bosutinib tablets ( 2.4 , 5.2 ) • Hepatic Toxicity: Monitor liver enzymes at least monthly for the first 3 months and as needed. Withhold, dose reduce, or discontinue bosutinib tablets. ( 2.3 , 5.3 ) • Cardiovascular Toxicity: Monitor and manage as necessary. Interrupt, dose reduce, or discontinue bosutinib tablets. ( 5.4 ) • Fluid Retention: Monitor patients and manage using standard of care treatment. Interrupt, dose reduce, or discontinue bosutinib tablets. ( 2.3 , 5.5 ) • Renal Toxicity: Monitor patients for renal function at baseline and during therapy with bosutinib tablets. ( 5.6 ) • Embryo-Fetal Toxicity: Bosutinib tablets can cause fetal harm. Advise female patients of reproductive potential of potential risk to a fetus and to use effective contraception. ( 5.7 ) 5.1 Gastrointestinal Toxicity Diarrhea, nausea, vomiting, and abdominal pain occur with bosutinib tablets treatment. Monitor and manage patients using standards of care, including antidiarrheals, antiemetics, and fluid replacement. Among 546 adult patients in a single-arm study in patients with CML who were resistant or intolerant to prior therapy, the median time to onset for diarrhea (all grades) was 2 days and the median duration per event was 2 days. Among the patients who experienced diarrhea, the median number of episodes of diarrhea per patient during treatment with bosutinib tablets was 3 (range 1 to 268). To manage gastrointestinal toxicity, withhold, dose reduce, or discontinue bosutinib tablets as necessary [see Dosage and Administration (2.3) and Adverse Reactions (6)] . Pediatric use information is approved for PF PRISM CV’s BOSULIF® (bosutinib) tablets. However, due to PF PRISM CV’s marketing exclusivity rights, this drug product is not labeled with that information. 5.2 Myelosuppression Thrombocytopenia, anemia and neutropenia occur with bosutinib tablets treatment. Perform complete blood counts weekly for the first month of therapy and then monthly thereafter, or as clinically indicated. To manage myelosuppression, withhold, dose reduce, or discontinue bosutinib tablets as necessary [see Dosage and Administration (2.4) and Adverse Reactions (6)] . 5.3 Hepatic Toxicity Bosutinib may cause elevations in serum transaminases (alanine aminotransferase [ALT], aspartate aminotransferase [AST]). Two cases consistent with drug induced liver injury (defined as concurrent elevations in ALT or AST greater than or equal to 3×ULN with total bilirubin greater than 2×ULN and alkaline phosphatase less than 2×ULN) have occurred without alternative causes. This represented 2 out of 1711 patients in bosutinib tablets clinical trials. Among the 546 adult patients in a single-arm study in patients with CML who were resistant or intolerant to prior therapy, the incidence of increased ALT was 53.3% and AST elevation was 46.7%. Sixty percent of the patients experienced an increase in either ALT or AST. Most cases of transaminase elevations in this study occurred early in treatment; of patients who experienced increased transaminase of any grade, more than 81% experienced their first increase within the first 3 months. The median time to onset of increased ALT and AST was 22 and 29 days, respectively, and the median duration for each was 21 days. Perform hepatic enzyme tests monthly for the first 3 months of bosutinib tablets treatment and as clinically indicated. In patients with transaminase elevations, monitor liver enzymes more frequently. Withhold, dose reduce, or discontinue bosutinib tablets as necessary [see Dosage and Administration (2.3) and Adverse Reactions (6)] . Pediatric use information is approved for PF PRISM CV’s BOSULIF® (bosutinib) tablets. However, due to PF PRISM CV’s marketing exclusivity rights, this drug product is not labeled with that information. 5.4 Cardiovascular Toxicity Bosutinib can cause cardiovascular toxicity including cardiac failure, left ventricular dysfunction, and cardiac ischemic events. Cardiac failure events occurred more frequently in previously treated patients and were more frequent in patients with advanced age or risk factors, including previous medical history of cardiac failure. Cardiac ischemic events occurred in previously treated patients and were more common in patients with coronary artery disease risk factors, including history of diabetes, body mass index greater than 30, hypertension, and vascular disorders. In a single-arm study in adult patients with CML who were resistant or intolerant to prior therapy, cardiac failure was observed in 5.3% of patients and cardiac ischemic events were observed in 5.1% of patients treated with bosutinib. Monitor patients for signs and symptoms consistent with cardiac failure and cardiac ischemia and treat as clinically indicated. Interrupt, dose reduce, or discontinue bosutinib as necessary [see Dosage and Administration (2.3) and Adverse Reactions (6)]. Pediatric use information is approved for PF PRISM CV’s BOSULIF® (bosutinib) tablets. However, due to PF PRISM CV’s marketing exclusivity rights, this drug product is not labeled with that information. 5.5 Fluid Retention Fluid retention occurs with bosutinib tablets and may manifest as pericardial effusion, pleural effusion, pulmonary edema, and/or peripheral edema. Among 546 adult patients in a single-arm study in patients with Ph+ CML who were resistant or intolerant to prior therapy, Grade 3 or 4 fluid retention was reported in 30 patients (6%). Some patients experienced more than one fluid retention event. Specifically, 24 patients experienced Grade 3 or 4 pleural effusions, 9 patients experienced Grade 3 or Grade 4 pericardial effusions, and 6 patients experienced Grade 3 edema. Monitor and manage patients using standards of care. Interrupt, dose reduce or discontinue bosutinib tablets as necessary [see Dosage and Administration (2.3) and Adverse Reactions (6)] . Pediatric use information is approved for PF PRISM CV’s BOSULIF® (bosutinib) tablets. However, due to PF PRISM CV’s marketing exclusivity rights, this drug product is not labeled with that information. 5.6 Renal Toxicity An on-treatment decline in estimated glomerular filtration rate (eGFR) has occurred in patients treated with bosutinib tablets. Table 6 identifies the shift from baseline to lowest observed eGFR during bosutinib tablets therapy for patients in the pooled leukemia studies regardless of line of therapy. The median duration of therapy with bosutinib tablets was approximately 24 months (range, 0.03 to 155) for patients in these studies. Table 6: Shift From Baseline to Lowest Observed eGFR Group During Treatment Safety Population in Clinical Studies (N=1372)* Baseline Follow-Up Renal Function Status N Normal n (%) Mild n (%) Mild to Moderate n (%) Moderate to Severe n (%) Severe n (%) Kidney Failure n (%) Normal 527 115 (21.8) 330 (62.6) 50 (9.5) 23 (4.4) 3 (0.6) 5 (0.9) Mild 672 10 (1.5) 259 (38.5) 271 (40.3) 96 (14.3) 26 (3.9) 6 (0.9) Mild to Moderate 137 0 6 (4.4) 40 (29.2) 66 (48.2) 24 (17.5) 1 (0.7) Moderate to Severe 33 0 1 (3) 1 (3) 8 (24.2) 19 (57.6) 4 (12.1) Severe 1 0 0 0 0 0 1 (100) Total 1370 125 (9.1) 596 (43.5) 362 (26.4) 193 (14.1) 72 (5.2) 17 (1.2) Abbreviations: eGFR=estimated glomerular filtration rate; N/n=number of patients. Notes: eGFR was calculated using Modification in Diet in Renal Disease method (MDRD). Notes: Grading is based on Kidney Disease Improving Global Outcomes (KDIGO) Classification by eGFR: Normal: greater than or equal to 90, Mild: 60 to less than 90, Mild to Moderate: 45 to less than 60, Moderate to Severe: 30 to less than 45, Severe: 15 to less than 30, Kidney Failure: less than 15 ml/min/1.73 m 2 . *Among the 1372 patients, eGFR was missing in 7 patients at baseline or on-therapy. There were no patients with kidney failure at baseline. Monitor renal function at baseline and during therapy with bosutinib tablets, with particular attention to those patients who have preexisting renal impairment or risk factors for renal dysfunction. Consider dose adjustment in patients with baseline and treatment emergent renal impairment [see Dosage and Administration (2.5)] . Pediatric use information is approved for PF PRISM CV’s BOSULIF® (bosutinib) tablets. However, due to PF PRISM CV’s marketing exclusivity rights, this drug product is not labeled with that information. 5.7 Embryofetal Toxicity Based on findings from animal studies and its mechanism of action, bosutinib tablets can cause fetal harm when administered to a pregnant woman. There are no available data in pregnant women to inform the drug-associated risk. In animal reproduction studies conducted in rats and rabbits, oral administration of bosutinib during organogenesis caused adverse developmental outcomes, including structural abnormalities, embryo-fetal mortality, and alterations to growth at maternal exposures (AUC) as low as 1.2 times the human exposure at the dose of 500 mg/day. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment and for 2 weeks after the last dose [see Use in Specific Populations (8.1, 8.3) and Clinical Pharmacology (12.1)] .

6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed in greater detail in other sections of the labeling: Gastrointestinal toxicity [see Warnings and Precautions (5.1)] . Myelosuppression [see Warnings and Precautions (5.2)] . Hepatic toxicity [see Warnings and Precautions (5.3)] . Cardiovascular toxicity [see Warnings and Precautions (5.4)]. Fluid retention [see Warnings and Precautions (5.5)] . Renal toxicity [see Warnings and Precautions ( 5.6)] . • Most common adverse reactions (≥20%), in adult patients with CML are diarrhea, abdominal pain, vomiting, nausea, rash, fatigue, hepatic dysfunction, headache, pyrexia, and respiratory tract infection. The most common laboratory abnormalities (≥20%) in adult patients are creatinine increased, hemoglobin decreased, lymphocyte count decreased, platelets decreased, ALT increased, calcium decreased, white blood cell count decreased, AST increased, absolute neutrophil count decreased, glucose increased, phosphorus decreased, urate increased, alkaline phosphatase increased, lipase increased, creatine kinase increased, and amylase increased. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Alembic Pharmaceuticals Limited at 1-866-210-9797 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 most common adverse reactions, in ≥20% of adults with resistance or intolerance to prior therapy (N=814) were diarrhea (80%), rash (44%), nausea (44%), abdominal pain (43%), vomiting (33%), fatigue (33%), hepatic dysfunction (33%), respiratory tract infection (25%), pyrexia (24%), and headache (21%). The most common laboratory abnormalities that worsened from baseline in ≥20% of adults were creatinine increased (93%), hemoglobin decreased (90%), lymphocyte count decreased (72%), platelets decreased (69%), ALT increased (58%), calcium decreased (53%), white blood cell count decreased (52%), absolute neutrophils count decreased (50%), AST increased (50%), glucose increased (46%), phosphorus decreased (44%), urate increased (41%), alkaline phosphatase increased (40%), lipase increased (36%), creatine kinase increased (29%), and amylase increased (24%). Adverse Reactions in Adult Patients With Imatinib-Resistant or-Intolerant Ph+ CP, AP, and BP CML The single-arm clinical trial enrolled patients with Ph+ CP, AP and BP CML and with resistance or intolerance to prior therapy [see Clinical Studies (14.2)]. The safety population (received at least 1 dose of bosutinib tablets) included 546 CML patients: • two hundred eighty-four (284) patients with CP CML previously treated with imatinib only who had a median duration of bosutinib tablets treatment of 26 months (range: 0.2 to 155 months), and a median dose intensity of 437 mg/day. • one hundred and nineteen (119) patients with CP CML previously treated with both imatinib and at least 1 additional tyrosine kinase inhibitor (TKI) who had a median duration of bosutinib tablets treatment of 9 months (range: 0.2 to 148 months), and a median dose intensity of 427 mg/day. • one hundred forty three (143) patients with advanced phase (AdvP) CML including 79 patients with AP CML and 64 patients with BP CML. In the patients with AP CML and BP CML, the median duration of bosutinib tablets treatment was 10 months (range: 0.1 to 140 months) and 3 months (range: 0.03 to 71 months), respectively. The median dose intensity was 406 mg/day, and 456 mg/day, in the AP CML and BP CML cohorts, respectively. Serious adverse reactions occurred in 30% of patients in the safety population of the single-arm trial in patients with CML (N=546) who were resistant or intolerant to prior therapy. Serious adverse reactions reported in >2% of patients included pneumonia (7%), pleural effusion (6%), pyrexia (3.7%), coronary artery disease (3.5%), dyspnea (2.6%), rash (2.2%), thrombocytopenia (2%), abdominal pain (2%), and diarrhea (2%). Fatal adverse reactions occurred in 12 patients (2.2%) due to coronary artery disease (0.9%), pneumonia (0.4%), respiratory failure (0.4%), gastrointestinal hemorrhage (0.2%), acute kidney injury (0.2%), and acute pulmonary edema (0.2%). Permanent discontinuation of bosutinib due to an adverse reaction occurred in 22% of patients with CML who were resistant or intolerant to prior therapy. Adverse reactions which resulted in permanent discontinuation in >2% of patients included thrombocytopenia (6%), hepatic dysfunction (3.3%), and neutropenia (2%). Dose modifications (dose interruption or reductions) of bosutinib due to an adverse reaction occurred in 66% of patients with CML who were resistant or intolerant to prior therapy. Adverse reactions which required dose interruptions or reductions in >5% of patients included thrombocytopenia (24%), diarrhea (14%), rash (13%), hepatic dysfunction (10%), neutropenia (9%), pleural effusion (8%), vomiting (7%), anemia (6%), and abdominal pain (6%). The most common adverse reactions, in ≥20% of patients in the safety population of the single-arm trial in patients with CML (N=546) who were resistant or intolerant to prior therapy were diarrhea (83%), nausea (47%), rash (46%), abdominal pain (45%), vomiting (39%), fatigue (33%), pyrexia (28%), hepatic dysfunction (27%), respiratory tract infection (24%), cough (23%), and headache (21%). The most common laboratory abnormalities that worsened from baseline in ≥20% were creatinine increased (93%), hemoglobin decreased (91%), lymphocyte decreased (80%), platelets decreased (69%), absolute neutrophil count (54%), ALT increased (53%), calcium decreased (53%), white blood cell count decreased (52%), urate increased (48%), AST increased (47%), phosphorus decreased (39%), alkaline phosphatase increased (39%), lipase increased (28%), magnesium increased (25%), potassium decreased (24%), potassium increased (23%). See Table 10 for Grade 3/4 laboratory abnormalities. Table 9 identifies adverse reactions greater than or equal to 10% for All Grades and Grades 3 or 4 for the Phase 1/2 CML safety population based on long-term follow-up. Table 9: Adverse Reactions (10% or Greater) in Patients With CML Who Were Resistant or Intolerant to Prior Therapy in Single-Arm Trial* System Organ Class Preferred Term CP CML N=403 AdvP CML N=143 All Grades (%) Grade 3/4 (%) All Grades (%) Grade 3/4 (%) Gastrointestinal disorders Diarrhea 85 10 76 4 Abdominal pain a 49 2 36 7 Nausea 47 1 48 2 Vomiting 38 3 43 3 Constipation 15 <1 17 1 Skin and subcutaneous tissue disorders Rash e 48 9 42 5 Pruritus 12 1 7 0 General disorders and administration-site conditions Fatigue 35 3 27 6 Pyrexia 25 1 37 3 Edema c 19 <1 17 1 Chest pain g 8 1 12 1 Hepatobiliary disorders Hepatic dysfunction h 29 11 21 10 Infections and infestations Respiratory tract infection f 27 <1 17 0 Influenza i 11 1 3 0 Pneumonia d 10 4 18 12 Respiratory, thoracic, and mediastinal disorders Cough 24 0 22 0 Pleural effusion 14 4 9 4 Dyspnea 12 2 20 6 Nervous system disorders Headache 21 1 18 4 Dizziness 11 0 14 1 Musculoskeletal and connective tissue disorders Arthralgia 19 1 15 0 Back pain 14 1 8 1 Metabolism and nutrition disorders Decreased appetite 14 1 14 0 Vascular disorders Hypertension b 11 3 8 3 ADR Definition * Based on Minimum of 105 Months of Follow-up. Adverse drug reactions are based on all-causality treatment-emergent adverse events. The commonality stratification is based on 'All Grades' under Total column. ‘Grade 3’, ‘Grade 4’ columns indicate maximum toxicity a Abdominal pain includes the following preferred terms: Abdominal discomfort, Abdominal pain, Abdominal pain lower, Abdominal pain upper, Abdominal tenderness, Dyspepsia, Epigastric discomfort, Gastrointestinal pain, Hepatic pain. g Chest pain includes the following preferred terms: Chest discomfort, Chest pain. h Hepatic dysfunction includes the following preferred terms: Alanine aminotransferase increased, Aspartate aminotransferase increased, Bilirubin conjugated increased, Blood alkaline phosphatase increased, Blood bilirubin increased, Blood bilirubin unconjugated increased, Gamma-glutamyltransferase increased, Hepatic enzyme increased, Hepatic function abnormal, Hepatic steatosis, Hepatitis toxic, Hepatomegaly, Hepatotoxicity, Hyperbilirubinemia, Liver disorder, Liver function test abnormal, Liver function test increased, Transaminases increased. b Hypertension* includes the following preferred terms: Blood pressure increased, Blood pressure systolic increased, Essential hypertension, Hypertension, Hypertensive crisis, Retinopathy hypertensive. i Influenza includes the following preferred terms: H1N1 influenza, Influenza. c Edema includes the following preferred terms: Eye edema, Eyelid edema, Face edema, Generalized edema, Localized edema, Edema, Edema peripheral, Penile edema, Periorbital edema, Periorbital swelling, Peripheral swelling, Scrotal edema, Scrotal swelling, Swelling, Swelling face, Swelling of eyelid, Testicular edema, Tongue edema. d Pneumonia includes the following preferred terms: Atypical pneumonia, Lower respiratory tract congestion, Lower respiratory tract infection, Pneumonia, Pneumonia aspiration, Pneumonia bacterial, Pneumonia fungal, Pneumonia necrotising, Pneumonia streptococcal. e Rash includes the following preferred terms: Acarodermatitis, Acne, Angular cheilitis, Blister, Dermatitis, Dermatitis acneiform, Dermatitis psoriasiform, Drug eruption, Eczema, Eczema asteatotic, Erythema, Erythema annulare, Exfoliative rash, Lichenoid keratosis, Palmar erythema, Photosensitivity reaction, Pigmentation disorder, Psoriasis, Pyoderma gangrenosum, Pyogenic granuloma, Rash, Rash erythematous, Rash generalised, Rash macular, Rash maculo-papular, Rash pruritic, Rash pustular, Seborrhoeic dermatitis, Seborrhoeic keratosis, Skin depigmentation, Skin discoloration, Skin disorder, Skin exfoliation, Skin hyperpigmentation, Skin hypopigmentation, Skin irritation, Skin lesion, Skin plaque, Skin toxicity, Stasis dermatitis. f Respiratory tract infection includes the following preferred terms: Nasopharyngitis, Respiratory tract congestion, Respiratory tract infection, Respiratory tract infection viral, Upper respiratory tract infection, Viral upper respiratory tract infection. * ADR identified post-marketing In the single-arm study in patients with CML who were resistant or intolerant to prior therapy, 2 patients (0.4%) experienced QTcF interval of greater than 500 milliseconds. Patients with uncontrolled or significant cardiovascular disease including QT interval prolongation were excluded by protocol. Table 10 identifies the clinically relevant or severe Grade 3/4 laboratory test abnormalities for the safety population of the study in patients with CML who were resistant or intolerant to prior therapy based on long-term follow-up. Table 10: Number (%) of Patients With Clinically Relevant All Grade or Grade 3/4 Laboratory Test Abnormalities in the Safety Population of the Study of Patients With CML Who Were Resistant or Intolerant to Prior Therapy* CP CML N=403 % AdvP CML N=143 % All grade Grade 3/4 All grade Grade 3/4 Hematology Parameters Platelet Count decreased 66 26 80 57 Absolute Neutrophil Count decreased 50 16 66 39 Hemoglobin decreased 89 13 97 38 Lymphocyte decreased 79 14 82 21 White Blood Cell Count decreased 51 7 57 27 Biochemistry Parameters SGPT/ALT increased 58 11 39 6 SGOT/AST increased 50 5 37 3.5 Lipase increased 32 12 19 6 Phosphorus decreased 41 8 33 7 Total Bilirubin increased 16 0.7 22 2.8 Creatinine increased 95 3 87 1.4 Alkaline Phosphatase increased 39 0 39 1.4 Glucose increased 42 2.7 39 6 Sodium increased 23 0.5 11 0 Sodium decreased 18 2.2 27 6 Calcium decreased 55 4.7 45 3.5 Urate increased 49 6 43 6 Magnesium increased 27 7 18 4.9 Potassium decreased 22 1.7 29 4.9 Potassium increased 25 2.7 19 2.1 * Based on Minimum of 105 Months of Follow-up. Abbreviations: AdvP=advanced phase; ALT=alanine aminotransferase; AST=aspartate aminotransferase; CML=chronic myelogenous leukemia; CP=chronic phase; N/n=number of patients; SGPT=serum glutamate-pyruvate transaminase; SGOT=serum glutamate-oxaloacetate aminotransferase; ULN=upper limit of normal. Additional Adverse Reactions From Multiple Clinical Trials The following adverse reactions were reported in patients in clinical trials with bosutinib tablets (less than 10% of bosutinib tablets-treated patients). They represent an evaluation of the adverse reaction data from all 1372 patients with leukemia who received at least 1 dose of single-agent bosutinib tablets. These adverse reactions are presented by system organ class and are ranked by frequency. These adverse reactions are included based on clinical relevance and ranked in order of decreasing seriousness within each category. Blood and Lymphatic System Disorders : 0.1% and less than 1% – Febrile neutropenia Cardiac Disorders : 1% and less than 10% – Cardiac ischemia (includes Acute coronary syndrome, Acute myocardial infarction, Angina pectoris, Angina unstable, Arteriosclerosis coronary artery, Coronary artery disease, Coronary artery occlusion, Coronary artery stenosis, Myocardial infarction, Myocardial ischemia, Troponin increased), Pericardial effusion, Cardiac failure (includes Cardiac failure, Cardiac failure acute, Cardiac failure chronic, Cardiac failure congestive, Cardiogenic shock, Cardiorenal syndrome, Ejection fraction decreased, Left ventricular failure); 0.1% and less than 1% – Pericarditis Ear and Labyrinth Disorders : 1% and less than 10% – Tinnitus Endocrine Disorders : 1% and less than 10% – Hypothyroidism; 0.1% and less than 1% -Hyperthyroidism Gastrointestinal Disorders : 1% and less than 10% – Gastritis, Pancreatitis (includes Edematous pancreatitis, Pancreatic enzymes increased, Pancreatitis, Pancreatitis acute, Pancreatitis chronic), Gastrointestinal hemorrhage (includes Anal hemorrhage, Gastric hemorrhage, Gastrointestinal hemorrhage, Intestinal hemorrhage, Lower gastrointestinal hemorrhage, Rectal hemorrhage, Upper gastrointestinal hemorrhage) General Disorders and Administrative Site Conditions : 1% and less than 10% – Pain Immune System Disorders : 1% and less than 10% – Drug hypersensitivity; 0.1% and less than 1% – Anaphylactic shock Infections and Infestations : 1% and less than 10% – Bronchitis Investigations : 1% and less than 10% – Electrocardiogram QT prolonged (includes Electrocardiogram QT prolonged, Long QT syndrome) Metabolism and Nutrition Disorders : 1% and less than 10% – Dehydration Musculoskeletal and Connective Tissue Disorders : 1% and less than 10% – Myalgia Nervous System Disorders : 1% and less than 10% – Dysgeusia Renal and Urinary Disorders : 1% and less than 10% – Acute kidney injury, Renal impairment, Renal failure Respiratory, Thoracic and Mediastinal Disorders : 1% and less than 10% – Pulmonary hypertension (includes Pulmonary hypertension, Pulmonary arterial hypertension, Pulmonary arterial pressure increased); 0.1% and less than 1% – Acute pulmonary edema (includes Acute pulmonary edema, Pulmonary edema), Interstitial lung disease, Respiratory failure Skin and Subcutaneous Disorders : 0.1% and less than 1% – Erythema multiforme, Cutaneous vasculitis Pediatric use information is approved for PF PRISM CV’s BOSULIF® (bosutinib) tablets. However, due to PF PRISM CV’s marketing exclusivity rights, this drug product is not labeled with that information. 6.2 Postmarketing Experience The following additional adverse reactions have been identified during post-approval use of bosutinib tablets. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Blood and Lymphatic System Disorders: Thrombotic microangiopathy Skin and Subcutaneous Tissue Disorders : Stevens-Johnson syndrome

8 USE IN SPECIFIC POPULATIONS Lactation: Advise women not to breastfeed. ( 8.2 ) Pediatric use information is approved for PF PRISM CV’s BOSULIF® (bosutinib) tablets. However, due to PF PRISM CV’s marketing exclusivity rights, this drug product is not labeled with that information. 8.1 Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, bosutinib tablets can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1)] . There are no available data in pregnant women to inform the drug-associated risk. In animal reproduction studies conducted in rats and rabbits, oral administration of bosutinib during organogenesis caused adverse developmental outcomes, including structural abnormalities, embryo-fetal mortality, and alterations to growth at maternal exposures (AUC) as low as 1.2 times the human exposure at the dose of 500 mg/day (see Data ) . Advise pregnant women of the potential risk to a fetus. The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies are 2 to 4% and 15 to 20%, respectively. Data Animal Data In a rat fertility and early embryonic development study, bosutinib was administered orally to female rats for approximately 3 to 6 weeks, depending on day of mating (2 weeks prior to cohabitation with untreated breeder males until gestation day [GD] 7). Increased embryonic resorptions occurred at greater than or equal to 10 mg/kg/day of bosutinib (1.6 and 1.2 times the human exposure at the recommended doses of 400 or 500 mg/day, respectively), and decreased implantations and reduced number of viable embryos at 30 mg/kg/day of bosutinib (3.4 and 2.5 times the human exposure at the recommended doses of 400 or 500 mg/day, respectively). In an embryo-fetal development study conducted in rabbits, bosutinib was administered orally to pregnant animals during the period of organogenesis at doses of 3, 10 and 30 mg/kg/day. At the maternally-toxic dose of 30 mg/kg/day of bosutinib, there were fetal anomalies (fused sternebrae, and 2 fetuses had various visceral observations), and an approximate 6% decrease in fetal body weight. The dose of 30 mg/kg/day resulted in exposures (AUC) approximately 5.1 and 3.8 times the human exposures at the recommended doses of 400 and 500 mg/day, respectively. Fetal exposure to bosutinib-derived radioactivity during pregnancy was demonstrated in a placental-transfer study in pregnant rats. In a rat pre-and postnatal development study, bosutinib was administered orally to pregnant animals during the period of organogenesis through lactation day 20 at doses of 10, 30, and 70 mg/kg/day. Reduced number of pups born occurred at greater than or equal to 30 mg/kg/day bosutinib (3.4 and 2.5 times the human exposure at the recommended doses of 400 or 500 mg/day, respectively), and increased incidence of total litter loss and decreased growth of offspring after birth occurred at 70 mg/kg/day bosutinib (6.9 and 5.1 times the human exposure at the recommended doses of 400 or 500 mg/day, respectively). 8.2 Lactation Risk Summary No data are available regarding the presence of bosutinib or its metabolites in human milk or its effects on a breastfed child or on milk production. However, bosutinib is present in the milk of lactating rats. Because of the potential for serious adverse reactions in a nursing child, breastfeeding is not recommended during treatment with bosutinib tablets and for 2 weeks after the last dose. Animal Data After a single radiolabeled bosutinib dose to lactating rats, radioactivity was present in the plasma of suckling offspring for 24 to 48 hours. 8.3 Females and Males of Reproductive Potential Based on findings from animal studies, bosutinib tablets can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1)] . Pregnancy Females of reproductive potential should have a pregnancy test prior to starting treatment with bosutinib tablets. Contraception Females Advise females of reproductive potential to use effective contraception (methods that result in less than 1% pregnancy rates) during treatment with bosutinib tablets and for 2 weeks after the last dose. Infertility The risk of infertility in females or males of reproductive potential has not been studied in humans. Based on findings from animal studies, bosutinib tablets may cause reduced fertility in females and males of reproductive potential [see Nonclinical Toxicology (13.1)] . 8.4 Pediatric Use The safety and effectiveness of bosutinib tablets in pediatric patients younger than 1 year of age with newly diagnosed CP Ph+ CML, pediatric patients younger than 1 year of age with CP Ph+ CML that is resistant or intolerant to prior therapy, and pediatric patients with AP Ph+ CML or BP Ph+ CML have not been established. Pediatric use information is approved for PF PRISM CV’s BOSULIF® (bosutinib) tablets. However, due to PF PRISM CV’s marketing exclusivity rights, this drug product is not labeled with that information. 8.5 Geriatric Use In the single-arm study in patients with CML who were resistant or intolerant to prior therapy of bosutinib tablets in patients with Ph+ CML, 20% were age 65 and over, 4% were 75 and over. No overall differences in safety or effectiveness were observed between these patients and younger patients, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out. 8.6 Renal Impairment Reduce the bosutinib tablets starting dose in patients with moderate (creatinine clearance [CL cr ] 30 to 50 mL/min, estimated by Cockcroft-Gault (C-G)) and severe (CL cr less than 30 mL/min, C-G) renal impairment at baseline. For patients who have declining renal function while on bosutinib tablets who cannot tolerate the starting dose, follow dose adjustment recommendations for toxicity [see Dosage and Administration (2.3, 2.5) and Clinical Pharmacology (12.3)] . Bosutinib tablet has not been studied in patients undergoing hemodialysis. 8.7 Hepatic Impairment Reduce the bosutinib tablets dosage in patients with hepatic impairment (Child-Pugh A, B, or C) [see Dosage and Administration (2.3, 2.5) and Clinical Pharmacology (12.3)].

8.1 Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, bosutinib tablets can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1)] . There are no available data in pregnant women to inform the drug-associated risk. In animal reproduction studies conducted in rats and rabbits, oral administration of bosutinib during organogenesis caused adverse developmental outcomes, including structural abnormalities, embryo-fetal mortality, and alterations to growth at maternal exposures (AUC) as low as 1.2 times the human exposure at the dose of 500 mg/day (see Data ) . Advise pregnant women of the potential risk to a fetus. The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies are 2 to 4% and 15 to 20%, respectively. Data Animal Data In a rat fertility and early embryonic development study, bosutinib was administered orally to female rats for approximately 3 to 6 weeks, depending on day of mating (2 weeks prior to cohabitation with untreated breeder males until gestation day [GD] 7). Increased embryonic resorptions occurred at greater than or equal to 10 mg/kg/day of bosutinib (1.6 and 1.2 times the human exposure at the recommended doses of 400 or 500 mg/day, respectively), and decreased implantations and reduced number of viable embryos at 30 mg/kg/day of bosutinib (3.4 and 2.5 times the human exposure at the recommended doses of 400 or 500 mg/day, respectively). In an embryo-fetal development study conducted in rabbits, bosutinib was administered orally to pregnant animals during the period of organogenesis at doses of 3, 10 and 30 mg/kg/day. At the maternally-toxic dose of 30 mg/kg/day of bosutinib, there were fetal anomalies (fused sternebrae, and 2 fetuses had various visceral observations), and an approximate 6% decrease in fetal body weight. The dose of 30 mg/kg/day resulted in exposures (AUC) approximately 5.1 and 3.8 times the human exposures at the recommended doses of 400 and 500 mg/day, respectively. Fetal exposure to bosutinib-derived radioactivity during pregnancy was demonstrated in a placental-transfer study in pregnant rats. In a rat pre-and postnatal development study, bosutinib was administered orally to pregnant animals during the period of organogenesis through lactation day 20 at doses of 10, 30, and 70 mg/kg/day. Reduced number of pups born occurred at greater than or equal to 30 mg/kg/day bosutinib (3.4 and 2.5 times the human exposure at the recommended doses of 400 or 500 mg/day, respectively), and increased incidence of total litter loss and decreased growth of offspring after birth occurred at 70 mg/kg/day bosutinib (6.9 and 5.1 times the human exposure at the recommended doses of 400 or 500 mg/day, respectively).