INLYTA PRODUCT MONOGRAPH. Axitinib. Tablets, 1 mg and 5 mg. Kinase Inhibitor, Anti-Tumour Agent. Date of Preparation: 11 July 2012

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1 PRODUCT MONOGRAPH Pr INLYTA Axitinib Tablets, 1 mg and 5 mg Kinase Inhibitor, Anti-Tumour Agent Pfizer Products Inc. 17,300 Trans-Canada Highway Kirkland, Quebec H9J 2M5 Date of Preparation: 11 July 2012 Pfizer Canada Inc., 2012 Submission Control No: INLYTA (axitinib) Product Monograph Page 1 of 37

2 Table of Contents PART I: HEALTH PROFESSIONAL INFORMATION... 3 SUMMARY PRODUCT INFORMATION... 3 INDICATIONS AND CLINICAL USE... 3 CONTRAINDICATIONS... 4 WARNINGS AND PRECAUTIONS... 4 ADVERSE REACTIONS DRUG INTERACTIONS DOSAGE AND ADMINISTRATION OVERDOSAGE ACTION AND CLINICAL PHARMACOLOGY STORAGE AND STABILITY DOSAGE FORMS, COMPOSITION AND PACKAGING PART II: SCIENTIFIC INFORMATION PHARMACEUTICAL INFORMATION CLINICAL TRIALS DETAILED PHARMACOLOGY TOXICOLOGY REFERENCES PART III: CONSUMER INFORMATION INLYTA (axitinib) Product Monograph Page 2 of 37

3 PR INLYTA TM Axitinib tablets PART I: HEALTH PROFESSIONAL INFORMATION SUMMARY PRODUCT INFORMATION Route of Administration Dosage Form / Strength Clinically Relevant Nonmedicinal Ingredients Oral Tablet 1 mg, 5 mg Lactose monohydrate For a complete listing see Dosage Forms, Composition and Packaging section. INDICATIONS AND CLINICAL USE INLYTA (axitinib) is indicated for the treatment of patients with metastatic renal cell carcinoma (RCC) of clear cell histology after failure of prior systemic therapy with either a cytokine or the VEGFR-TKI, sunitinib. The clinical effectiveness of INLYTA is based on progression-free survival (PFS) in patients with metastatic RCC in a Phase 3, controlled clinical trial which compared INLYTA to sorafenib. The overall median PFS increased by 2 months in patients treated with INLYTA as compared to those treated with sorafenib (HR = 0.67 [95% CI: 0.54, 0.81]). The difference in median PFS for patients previously treated with a cytokine was 5.6 months (HR = 0.46 [95% CI: 0.32, 0.68]), whereas the difference in patients previously treated with sunitinib was 1.4 months (HR = 0.74 [95% CI: 0.57, 0.96]). The overall survival and quality of life were not significantly different in patients treated with INLYTA as compared to those treated with sorafenib (see CLINICAL TRIALS). INLYTA should be prescribed by a qualified healthcare professional who is experienced in the use of anti-neoplastic therapy. Geriatrics ( 65 years of age): In a pivotal, Phase 3 controlled study with INLYTA for the treatment of metastatic RCC, 123/359 (34%) patients treated with INLYTA were 65 years old. Although greater sensitivity in some older individuals cannot be ruled out, no overall differences were observed in the safety and effectiveness of INLYTA between patients who were 65 years old and patients younger than 65 years. No dosage adjustment is required in patients who are 65 years or older (see WARNING AND PRECAUTIONS, Special Populations and DOSAGE AND ADMINISTRATION). INLYTA (axitinib) Product Monograph Page 3 of 37

4 Pediatrics (<18 years of age): The safety and efficacy of INLYTA in pediatric patients has not been established. Physeal dysplasia in immature mice and dogs and odontopathies in growing incisors of mice have been observed in toxicology studies. Other toxicities of potential concern to pediatric patients due to the anti-angiogenic mechanism of action of axitinib have not been evaluated in juvenile animals. Therefore, INLYTA should not be administered to children under 18. (see WARNING AND PRECAUTIONS, Special Populations and DOSAGE AND ADMINISTRATION). CONTRAINDICATIONS INLYTA (axitinib tablets) is contraindicated in patients who are hypersensitive to this drug or to any ingredient in the formulation or component of the container. For a complete listing, see the DOSAGE FORMS, COMPOSITION AND PACKAGING section of the product monograph. WARNINGS AND PRECAUTIONS Serious Warnings and Precautions INLYTA should be prescribed by a qualified healthcare professional who is experienced in the use of anti-neoplastic therapy. INLYTA has not been studied in patients with severe hepatic impairment (see Hepatic section below) The following are clinically significant adverse events: Hypertension and Hypertensive Crisis(see Cardiovascular section below) Arterial Thromboembolism, including deaths (see Cardiovascular section below) Venous Thromboembolism, including deaths (see Cardiovascular section below) Hemorrhage (including gastrointestinal, cerebral and respiratory tract) (see Hematologic section below) Gastrointestinal perforation, including death and gastrointestinal fistulas (see Gastrointestinal section below) Reversible posterior leukoencephalopathy syndrome (see Neurologic section below) General INLYTA contains lactose and should not be taken by patients with hereditary problems of lactose intolerance. INLYTA (axitinib) Product Monograph Page 4 of 37

5 Drug-Drug Interactions Co-administration of INLYTA with strong inhibitors of CYP3A4/5 is not recommended as this may increase axitinib concentrations and drug toxicity. If a strong CYP3A4/5 inhibitor must be co-administered a dose reduction of INLYTA is recommended (see DRUG INTERACTIONS and DOSAGE AND ADMINISTRATION). Co-administration with strong inducers of CYP3A4/4 should be avoided due to the risk of reduced effectiveness of the drug. Moderate CYP3A4/5 inducers may also reduce the plasma exposure of axitinib and should be avoided if possible (see DRUG INTERACTIONS). INLYTA is not indicated for use in combination with other anti-cancer agents. Effects on ability to drive and use machines No studies on the effect of INLYTA on the ability to drive or use machines have been performed. However, patients should be informed that dizziness and fatigue have been reported during treatment with INLYTA. Carcinogenesis and Mutagenesis Carcinogenicity studies with axitinib have not been conducted. Axitinib was not mutagenic in an in vitro bacterial reverse mutation (Ames) assay and was not clastogenic in an in vitro human lymphocyte chromosome aberration assay. Axitinib was genotoxic in an in vivo mouse bone marrow micronucleus test (see TOXICOLOGY). Cardiovascular Hypertension and Hypertensive Crisis Hypertension is a common adverse event in patients treated with INLYTA (see ADVERSE REACTIONS) and blood pressure should be well controlled prior to initiating treatment with INLYTA. Patients were required to have diastolic BP 90 mm Hg and systolic BP 140 mm Hg for entry into the controlled Phase 3 trial. During therapy patients should be monitored for hypertension early after starting treatment (no longer than one week after starting axitinib and frequently thereafter to ensure blood pressure control), and treated promptly with a combination of standard anti-hypertensive therapy and INLYTA dose reduction or interruption as clinically warranted. INLYTA should be discontinued if hypertension is severe and persistent despite antihypertensive therapy or if there is evidence of hypertensive crisis (see DOSAGE AND ADMINISTRATION, ADVERSE REACTIONS). In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, hypertension was reported in 145/359 patients (40%) receiving INLYTA and 103/355 patients (29%) receiving sorafenib. Grade 3/4 hypertension was observed in 56/359 patients (16%) receiving INLYTA and 39/355 patients (11%) receiving sorafenib. Hypertensive crisis was reported in 2/359 patients (<1%) treated with INLYTA and none in patients treated with sorafenib. The median onset time for hypertension (systolic blood pressure >150 mmhg or INLYTA (axitinib) Product Monograph Page 5 of 37

6 diastolic blood pressure >100 mmhg) was within the first month of the start of INLYTA treatment and increases in blood pressure were observed as early as 4 days after the first dose of INLYTA. Hypertension was managed with standard anti-hypertensive therapy. Discontinuation of INLYTA treatment due to hypertension occurred in 1/359 patients (<1%) receiving INLYTA and none of the patients receiving sorafenib (see ADVERSE REACTIONS). Patients with hypertension that is not controlled by medications should not be treated with INLYTA. If INLYTA is interrupted, patients receiving antihypertensive medications should be monitored for hypotension (see DOSAGE and ADMINISTRATION). QT Prolongation The effect of INLYTA on the QTc interval was investigated in a randomized, 2-way crossover study where, 35 healthy subjects were administered a single, oral 5 mg dose of INLYTA alone or with 400 mg ketoconazole. Although some tyrosine kinase inhibitors are associated with QT interval prolongation, INLYTA did not result in large mean changes in the QTc interval (>20 msec) up to 3 hours post-dose. However smaller increases in the QTc interval (<10 msec) cannot be ruled out. Decreased Heart Rate In clinical trials with INLYTA, events of decreased heart rate have occurred (see ADVERSE REACTIONS; ACTION AND CLINICAL PHARMACOLOGY, Pharmacodynamics). Caution should be observed in patients who are bradycardic or considered to be at risk for bradyarrhythmias or who are receiving other heart rate-lowering drugs. Heart Failure Some tyrosine kinase inhibitors have been associated with cardiomyopathy, decreased ventricular performance, and heart failure. In clinical trials with INLYTA, events of congestive heart failure and cardiomyopathy have occurred (see ADVERSE REACTIONS). Arterial Thromboembolic Events In clinical studies with INLYTA, arterial thromboembolic events (including transient ischemic attack, myocardial infarction, cerebrovascular accident and retinal artery occlusion) were reported in 17/715 patients (2%) receiving INLYTA, including two deaths secondary to cerebrovascular accident (see ADVERSE REACTIONS). In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, Grade 3/4 arterial thromboembolic events were reported in 4/359 patients (1%) receiving INLYTA and 4/355 patients (1%) receiving sorafenib. A fatal cerebrovascular accident was reported in 1/359 patients (<1%) receiving INLYTA and none of the patients receiving sorafenib (see ADVERSE REACTIONS). INLYTA (axitinib) Product Monograph Page 6 of 37

7 INLYTA should be used with caution in patients who are at risk for or who have a history of these events. INLYTA has not been studied in patients who had an arterial thromboembolic event within the previous 12 months. Venous Thromboembolic Events In clinical studies with INLYTA, venous thromboembolic events including venous thrombosis and fatal pulmonary embolus have occurred. In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, venous thromboembolic events were reported in 11/359 patients (3%) receiving INLYTA and 2/355 patients (1%) receiving sorafenib. Grade 3/4 venous thromboembolic events (including pulmonary embolism, deep vein thrombosis, and retinal-vein occlusion/thrombosis) were reported in 9/359 patients (3%) receiving INLYTA and 2/355 patients (1%) receiving sorafenib. INLYTA should be used with caution in patients who are at risk for venous thromboembolic events or who have a history of these events. INLYTA has not been studied in patients who had a venous thromboembolic event within the previous 6 months. Endocrine and Metabolism Thyroid Dysfunction In clinical studies with INLYTA, events of hypothyroidism and hyperthyroidism have occurred (see ADVERSE REACTIONS). In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, hypothyroidism was reported in 69/359 patients (19%) receiving INLYTA and 29/355 patients (8%) receiving sorafenib. Hyperthyroidism was reported in 4/359 patients (1%) receiving INLYTA and 4/355 patients (1%) receiving sorafenib. In patients who had thyroid stimulating hormone (TSH) <5 μu/ml before treatment, elevations of TSH to 10 μu/ml occurred in 79/245 patients (32%) receiving INLYTA and 25/232 patients (11%) receiving sorafenib (see ADVERSE REACTIONS). Monitoring for thyroid function before initiation of, and periodically throughout, treatment with INLYTA is recommended. Hypothyroidism and hyperthyroidism should be treated according to standard medical practice to maintain euthyroid state. Gastrointestinal Gastrointestinal Perforation and Fistula Formation In clinical studies with INLYTA, events of gastrointestinal (GI) perforation or fistula have occurred, including a fatal GI perforation (see ADVERSE REACTIONS). In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, gastrointestinal perforation was reported in 1/359 patients (<1%) receiving INLYTA and none of the patients receiving sorafenib. In clinical studies with INLYTA, GI perforation was reported in 5/715 patients (1%), including one death, and GI fistulas were reported in 4/715 patients (1%). Monitoring for symptoms of GI perforation or fistula formation periodically throughout treatment with INLYTA is recommended. INLYTA (axitinib) Product Monograph Page 7 of 37

8 Hematologic Elevation of Hemoglobin or Hematocrit In clinical studies with INLYTA, events of elevated hemoglobin have occurred. Elevated hemoglobin above the upper limit of normal (ULN) was observed in 31/320 patients (10%) receiving INLYTA and 3/316 patients (1%) receiving sorafenib. An increase in red blood cell mass may increase the risk of thromboembolic events. Monitoring hemoglobin or hematocrit before initiation of, and periodically throughout, treatment with INLYTA is recommended. If hemoglobin or hematocrit becomes elevated above the normal level, patients should be treated according to standard medical practice to decrease hemoglobin or hematocrit to an acceptable level. Hemorrhagic In clinical studies with INLYTA, hemorrhagic events have been reported, some of which were fatal (see ADVERSE REACTIONS). In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, hemorrhagic events were reported in 58/359 patients (16%) receiving INLYTA and 64/355 patients (18%) receiving sorafenib. Grade 3/4 hemorrhagic events were reported in 5/359 (1%) patients receiving INLYTA (including cerebral hemorrhage, hematuria, hemoptysis, lower gastrointestinal hemorrhage, and melena) and 11/355 (3%) patients receiving sorafenib. Fatal hemorrhage was reported in 1/359 patients (<1%) receiving INLYTA (gastric hemorrhage) and 3/355 patients (1%) receiving sorafenib. Since INLYTA has not been studied in patients who have evidence of untreated brain metastasis, a history of pulmonary embolism in the previous 6 months, or a history of active bleeding in the previous 3 months, treatment with INLYTA is not recommended in these patients. INLYTA should be used with caution in patients with a significant risk for hemorrhage. Hepatic Elevation of Liver Enzymes In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, alanine aminotransferase (ALT) elevations occurred in 74/331 patients (22%) receiving INLYTA and 68/313 patients (22%) receiving sorafenib. Grade 3/4 events were reported in 1/331 patients (<1%) receiving INLYTA and 5/313 patients (2%) receiving sorafenib. Monitoring of ALT, aspartate aminotransferase (AST) and bilirubin before initiation of, and periodically throughout treatment with, INLYTA is recommended. Hepatic Impairment In a clinical hepatic impairment study with INLYTA (N=24 subjects), the systemic exposure of INLYTA (axitinib) Product Monograph Page 8 of 37

9 INLYTA was approximately 2-fold higher in subjects with moderate hepatic impairment (Child- Pugh class B) compared to subjects with normal hepatic function. A dose decrease is recommended when administering INLYTA to patients with moderate hepatic impairment (Child-Pugh class B). INLYTA has not been studied in patients with severe hepatic impairment (Child-Pugh class C) and should not be used in this patient population (see DOSAGE AND ADMINISTRATION, ACTION AND CLINICAL PHARMACOLOGY). Neurologic Reversible Posterior Leukoencephalopathy Syndrome In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, reversible posterior leukoencephalopathy syndrome (RPLS) was reported in 1/359 patients (<1%) receiving INLYTA and none of the patients receiving sorafenib. Two additional events of RPLS were reported in other clinical trials with INLYTA (see ADVERSE REACTIONS). RPLS is a neurological disorder which can present with headache, seizure, lethargy, confusion, blindness and other visual and neurologic disturbances. Mild to severe hypertension may be present. Magnetic resonance imaging is necessary to confirm the diagnosis of RPLS. INLYTA should be discontinued in patients with signs/symptoms of RPLS. The safety of reinitiating INLYTA therapy in patients previously experiencing RPLS is not known. Peri-Operative Considerations Wound Healing Complications No formal studies of the effect of INLYTA on wound healing have been conducted. Since vascular endothelial growth factor (VEGF) inhibitors may impair wound healing, treatment with INLYTA should be stopped at least 24 hours prior to scheduled surgery. The decision to resume INLYTA after surgery should be based on clinical judgement of adequate wound healing. INLYTA should be discontinued in patients with wound dehiscence. Renal Renal Impairment Axitinib has not been studied in patients with renal impairment. Caution should be exercised when administering INLYTA to patients with end-stage renal disease. Population pharmacokinetic analyses, suggest that there is no significant change in axitinib clearance in patients with mild to severe renal impairment. No dose adjustments based on renal function are required in patients with mild to severe renal impairment (see DOSAGE AND ADMINISTRATION, ACTION AND CLINICAL PHARMACOLOGY). Proteinuria In clinical studies with INLYTA, proteinuria has been reported (see ADVERSE REACTIONS). INLYTA (axitinib) Product Monograph Page 9 of 37

10 In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, proteinuria was reported in 39/359 patients (11%) receiving INLYTA and 26/355 patients (7%) receiving sorafenib. Grade 3 proteinuria was reported in 11/359 patients (3%) receiving INLYTA and 6/355 patients (2%) receiving sorafenib (see ADVERSE REACTIONS). Monitoring for proteinuria before initiation of, and periodically throughout, treatment with INLYTA is recommended. For patients who develop moderate to severe proteinuria, reduction of the dose or temporary interruption of INLYTA treatment is recommended. Sexual Function/Reproduction Based on nonclinical safety findings, male and female fertility may be impaired by treatment with axitinib (see TOXICOLOGY). Special Populations Pregnant Women INLYTA should not be used during pregnancy. There are no studies in pregnant women using INLYTA. Based on its anti-angiogenic mechanism of action, INLYTA is expected to cause fetal harm when used by pregnant women. In developmental toxicity studies in mice, axitinib was teratogenic, embryotoxic and fetotoxic at maternal exposures that were lower than human exposures at the recommended clinical dose (see TOXICOLOGY). Women of childbearing potential should be advised to avoid becoming pregnant while receiving INLYTA. It is recommended that men and women should use effective birth control during treatment with INLYTA. Nursing Women The safe use of axitinib during lactation has not been established. It is unknown whether INLYTA is excreted in human milk. Breastfeeding should be discontinued during treatment with INLYTA. Many drugs are commonly excreted in human milk therefore INLYTA may be toxic to nursing infants. Pediatrics (<18 years of age) The safety and efficacy of INLYTA in pediatric patients have not been established. Physeal dysplasia in immature mice and dogs and odontopathies in growing incisors of mice have been observed in toxicology studies. Other toxicities of potential concern to pediatric patients have not been evaluated in juvenile animals (see TOXICOLOGY). Therefore, INLYTA should not be administered to children less than 18 years of age. INLYTA (axitinib) Product Monograph Page 10 of 37

11 Geriatrics ( 65 years of age) In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, 123/359 (34%) of patients treated with INLYTA were 65 years of age. Although greater sensitivity in some older individuals cannot be ruled out, no overall differences were observed in the safety and effectiveness of INLYTA between patients who were 65 years old and patients younger than 65 years. No dosage adjustment is required in patients who are 65 years or older (see DOSAGE AND ADMINISTRATION). Monitoring and Laboratory Tests Prior to treatment and during the course of therapy with INLYTA, patients should be monitored for hypertension, decreased heart rate, thyroid dysfunction, increased hemoglobin or hematocrit, symptoms of gastrointestinal perforation and fistula formation, proteinuria and elevated liver enzymes (see WARNINGS and PRECAUTIONS, Hypertension, Thyroid Dysfunction, Elevation of Hemoglobin and Hematocrit, Gastrointestinal Perforation and Fistula Formation, Proteinuria, Elevation of Liver Enzymes). ADVERSE REACTIONS Adverse Drug Reaction Overview The safety of INLYTA has been evaluated in 699 patients in clinical studies, which included 537 patients with metastatic RCC. The data described in this section reflect exposure to INLYTA in 359 patients with metastatic RCC who participated in the pivotal Phase 3 controlled clinical study versus sorafenib (see CLINICAL TRIALS). The median duration of treatment was 6.4 months (range 0.03 to 22.0) for patients who received INLYTA and 5.0 months (range 0.03 to 20.1) for patients who received sorafenib. Dose modifications or temporary delay of treatment due to an adverse event occurred in 199/359 patients (55%) receiving INLYTA and 220/355 patients (62%) receiving sorafenib. Permanent discontinuation due to an adverse event occurred in 33/359 patients (9%) receiving INLYTA and 46/355 patients (13%) receiving sorafenib. Clinical Trial Adverse Drug Reactions Because clinical trials are conducted under very specific conditions the adverse reaction rates observed in the clinical trials may not reflect the rates observed in practice and should not be compared to the rates in the clinical trials of another drug. Adverse drug reaction information from clinical trials is useful for identifying drug-related adverse events and for approximating rates. Potentially serious adverse reactions with INLYTA included hypertension and hypertensive crisis, arterial thrombotic events, venous thrombotic events, cardiac dysfunction, hemorrhagic INLYTA (axitinib) Product Monograph Page 11 of 37

12 events, gastrointestinal perforation and fistula formation, thyroid dysfunction, elevation of hemoglobin or hematocrit, wound healing complications, RPLS, proteinuria, elevation of liver enzymes and fetal development (see WARNINGS AND PRECAUTIONS). Table 1 presents the most common adverse reactions reported in 10% of patients who received INLYTA or sorafenib. INLYTA (axitinib) Product Monograph Page 12 of 37

13 Table 1. Adverse Reactions Occurring in 10% of Patients who Received INLYTA or Sorafenib INLYTA Sorafenib (N=359) (N=355) Adverse Reaction a All Grades b Grade 3 Grade 4 All Grades b Grade 3 Grade 4 % % % % % % Endocrine disorders Hypothyroidism 19 < Gastrointestinal disorders Diarrhea < Nausea 32 2 < Vomiting 24 3 < Constipation Stomatitis <1 0 Abdominal pain 14 2 < Dyspepsia General disorders and administration site conditions Fatigue <1 Asthenia 21 c <1 Mucosal inflammation Investigations Weight decreased Metabolism and nutrition disorders Decreased appetite 34 c 5 < Musculoskeletal and connective tissue disorders Arthralgia Pain in extremity 13 <1 < Nervous system disorders Headache Dysgeusia Renal and urinary disorders Proteinuria Respiratory, Thoracic and Mediastinal disorders Dysphonia Cough Dyspnea 15 c * 2 1 Skin and subcutaneous disorders Palmar-plantar erythrodysesthesia syndrome Rash 13 < Dry skin Pruritus Alopecia Erythema <1 0 Vascular disorders Hypertension < <1 a Percentages are treatment-emergent, all-causality events; b National Cancer Institute Common Terminology Criteria for Adverse Events, Version 3.0; c Includes Grade 5 <1% INLYTA (axitinib) Product Monograph Page 13 of 37

14 Less Common Clinical Trial Adverse Drug Reactions (<10%) Selected adverse reactions (all grades) that were reported in <10% of patients treated with INLYTA included the following: Blood and lymphatic disorders: anemia (4%), dizziness (9%), polycythemia (1%) Cardiac disorder: cardiac failure congestive (0.3%) Metabolism and nutrition disorders: dehydration (6%) Nervous system disorders: RPLS (<1%), transient ischemic attack (1%) Eye disorders: retinal vein-occlusion/thrombosis (1%) Ear and labyrinth disorders: tinnitus (3%) Vascular disorders: deep vein thrombosis (1%) Respiratory, thoracic and mediastinal disorders: epistaxis (6%), hemoptysis (2%), pulmonary embolism (2%) Gastrointestinal disorders: upper abdominal pain (8%), hemorrhoids (4%), rectal hemorrhage (2%) Muscoskeletal and connective tissue disorders: myalgia (7%) Renal and urinary disorders: hematuria (3%) Investigations: lipase increased (3%) Abnormal Hematologic and Clinical Chemistry Findings Table 2 presents the most common laboratory abnormalities reported in 10% patients who received INLYTA or sorafenib. INLYTA (axitinib) Product Monograph Page 14 of 37

15 Table 2. Laboratory Abnormalities Occurring in 10% of Patients who Received INLYTA or Sorafenib Laboratory Abnormality Hematology N INLYTA Sorafenib All Grades a Grade 3 Grade 4 N All Grades a Grade 3 Grade 4 % % % % % % Hemoglobin decreased < <1 Lymphocytes (absolute) decreased Platelets decreased < White blood cells decreased Chemistry <1 0 Creatinine increased <1 0 Bicarbonate decreased < Hypocalcemia ALP increased Hyperglycemia Lipase increased Amylase increased <1 ALT increased < AST increased < Hypernatremia <1 1 Hypoalbuminemia < Hyperkalemia Hypoglycemia < <1 0 Hyponatremia < <1 Hypophosphatemia Hypocalcemia < a National Cancer Institute Common Terminology Criteria for Adverse Events, Version 3.0 ALP: alkaline phosphatase; ALT: alanine aminotransferase; AST: aspartate aminotransferase Hemoglobin increases above the upper limit of normal were observed for 9% of patients treated with INLYTA as compared to 1% of patients treated with sorafenib. In clinical trials, INLYTA was associated with statistically significant mean increases from baseline in systolic and diastolic blood pressure. On day 15 of treatment, systolic blood pressure was increased by mean 8.0 mmhg and diastolic blood pressure by mean 5.5 mmhg. These blood pressure increases were associated with a statistically significant mean decrease from baseline in heart rate of approximately 4 to 6 beats per minute. Hypercalcemia was observed in 5.7% of patients treated with INLYTA and 1.6% of patients treated with sorafenib. INLYTA (axitinib) Product Monograph Page 15 of 37

16 DRUG INTERACTIONS Overview Axitinib is metabolized in the liver, undergoing oxidative metabolism mediated primarily by CYP3A4/5 and, to a lesser extent, CYP1A2, CYP2C19, as well as uridine diphosphateglucuronosyltransferase (UGT) 1A1. The aqueous solubility of axitinib is ph dependent, with higher ph resulting in lower solubility. In vitro studies indicated that axitinib does not inhibit CYP2A6, CYP2C9, CYP2C19, CYP2D6, CYP2E1, CYP3A4/5, or UGT1A1 at therapeutic plasma concentrations. In vitro studies indicated that axitinib does not induce CYP1A1, CYP1A2, or CYP3A4/5. In vitro studies indicated that axitinib has a potential to inhibit CYP1A2 and CYP2C8. Coadministration of INLYTA with CYP1A2 substrates may result in increased plasma concentrations of CYP1A2 substrates (e.g., theophylline). In vitro studies indicated that axitinib inhibits P-glycoprotein. However, INLYTA is not expected to inhibit P-glycoprotein at therapeutic plasma concentrations. Drug-Drug Interactions CYP3A4/5 Inhibitors Co-administration of INLYTA with strong CYP3A4/5 inhibitors (e.g., ketoconazole, itraconazole, voriconazole, clarithromycin, atazanavir, indinavir, nefazodone, nelfinavir, ritonavir, saquinavir, and telithromycin) should be avoided as they may increase the plasma concentration of axitinib. Selection of concomitant medication with no or minimal CYP3A4/5 inhibition potential is recommended. If a strong CYP3A4/5 inhibitor must be co-administered, a dose reduction of INLYTA is recommended (see DOSAGE AND ADMINISTRATION). Ketoconazole, a strong inhibitor of CYP3A4/5, administered at a dose of 400 mg once daily for 7 days, increased the mean AUC 2-fold and C max 1.5-fold of a single 5-mg oral dose of INLYTA in healthy volunteers. CYP3A4/5 Inducers Co-administration of INLYTA with strong CYP3A4/5 inducers (e.g., rifampin, dexamethasone, phenytoin, carbamazepine, rifabutin, rifapentin, and phenobarbital) should be avoided due to the potential for reduced effectiveness of the drug. Moderate CYP3A4/5 inducers (e.g., bosentan, efavirenz, etravirine, modafinil, and nafcillin) may also reduce the plasma concentration of axitinib and should be avoided if possible. Selection of concomitant medication with no or minimal CYP3A4/5 induction potential is recommended (see DOSAGE AND ADMINISTRATION). Rifampin, a strong inducer of CYP3A4/5, administered at a dose of 600 mg once daily for 9 INLYTA (axitinib) Product Monograph Page 16 of 37

17 days, reduced the mean AUC by 79% and C max by 71% of a single 5-mg dose of INLYTA in healthy volunteers. Antacids The solubility of axitinib is lowered with increasing ph and co-administration of antacids could result in decreased plasma exposure to INLYTA. It is recommended that antacids should be avoided for 2 hours before through 2 hours after dosing with axitinib. The effect of rabeprazole, a proton pump inhibitor (administered 20 mg once a day), on the steady state exposure of axitinib (dosed at 5 mg twice a day) was examined in 6 patients with solid tumors. Although the mean AUC and Cmax of axitinib were decreased by 15% (geometric mean ratio of 0.85 [90% CI: 0.59, 1.23]) and 42% (geometric mean ratio of 0.58 [90% CI: 0.26, 1.30]), respectively, in the presence of rabeprazole, the magnitude of the effect of the antacid was variable between patients. Drug-Food Interactions Grapefruit, grapefruit juice, and products containing grapefruit extract may increase axitinib plasma concentrations and should be avoided. INLYTA may be administered with or without food (see DOSAGE AND ADMINISTRATION). Administration of INLYTA with a moderate fat meal resulted in 10% lower exposure compared to overnight fasting. A high fat, high-calorie meal resulted in 19% higher exposure compared to overnight fasting (see ACTION AND CLINICAL PHARMACOLOGY, Pharmacokinetics). Drug-Herb Interactions Interactions with herbal products have not been established. St. John s wort (Hypericum perforatum), is an inducer of CYP3A4/5, that may decrease axitinib plasma concentrations and should be avoided. Drug-Laboratory Interactions Interactions between INLYTA and laboratory tests have not been studied. DOSAGE AND ADMINISTRATION Recommended Dose and Dosage Adjustment The recommended oral starting dose of INLYTA is 5 mg twice daily (see CLINICAL TRIALS). INLYTA may be taken with or without food (see ACTION AND CLINICAL PHARMACOLOGY). INLYTA should be swallowed whole with a glass of water. Dose increase or reduction is recommended based on individual safety and tolerability. INLYTA (axitinib) Product Monograph Page 17 of 37

18 Patients who tolerate the INLYTA starting dose of 5 mg twice daily with no adverse reactions >Grade 2 (according Common Toxicity Adverse Event Criteria [CTCAE]) for two consecutive weeks, are normotensive, and are not receiving anti-hypertension medication, may have their dose increased to 7 mg twice daily. Subsequently, using the same criteria, patients who tolerate the INLYTA dose of 7 mg twice daily, may have their dose increased to a maximum of 10 mg twice daily. Management of some adverse drug reactions may require temporary or permanent discontinuation and/or dose reduction of INLYTA therapy (see WARNINGS AND PRECAUTIONS). When dose reduction is necessary, the INLYTA dose may be reduced from 5 mg twice daily to 3 mg twice daily and further to 2 mg twice daily. Geriatric No alteration of dosage, dosing frequency or route of administration is required in patients over 65 years. Hepatic Impairment No dose adjustment is required when administering INLYTA to patients with mild hepatic impairment (Child-Pugh class A). Based on pharmacokinetic data, the starting dose of INLYTA should be decreased by approximately half in patients with moderate hepatic impairment (Child- Pugh class B). INLYTA has not been studied in patients with severe hepatic impairment (Child- Pugh class C) and should not be used in this patient population as an appropriate starting dose is unknown (see WARNINGS AND PRECAUTIONS, Hepatic Impairment, ACTION AND CLINICAL PHARMACOLOGY). Renal Impairment Axitinib has not been studied in patients with renal impairment. Caution should be exercised when administering INLYTA to patients with end-stage renal disease. No dose adjustments based on renal function are required in patients with mild to severe renal impairment (see ACTION AND CLINICAL PHARMACOLOGY). Strong CYP3A4/5 Inhibitors Co-administration of INLYTA with strong CYP3A4/5 inhibitors (e.g., ketoconazole, itraconazole, voriconazole, clarithromycin, atazanavir, indinavir, nefazodone, nelfinavir, ritonavir, saquinavir, and telithromycin) may increase axitinib plasma concentrations and is not recommended (see DRUG INTERACTIONS). Missed Dose If the patient vomits or misses a dose, an additional dose should not be taken. The next prescribed dose should be taken at the usual time. INLYTA (axitinib) Product Monograph Page 18 of 37

19 OVERDOSAGE For management of a suspected drug overdose, contact your regional Poison Control Centre. There is no specific treatment for INLYTA overdose. In the pivotal Phase 3 controlled clinical study with INLYTA for the treatment of patients with metastatic RCC, 1 patient inadvertently received a dose of 20 mg twice daily for 4 days and experienced dizziness (Grade 1). In a clinical dose finding study with INLYTA, subjects who received starting doses of 10-mg twice daily or 20-mg twice daily experienced adverse reactions which included hypertension, seizures associated with hypertension, and fatal hemoptysis. In cases of suspected overdose, INLYTA should be withheld and supportive care instituted. ACTION AND CLINICAL PHARMACOLOGY Mechanism of Action Axitinib was shown to inhibit tyrosine kinase VEGF receptor (VEGFR)-1, VEGFR-2, and VEGFR-3. These receptors are implicated in pathologic angiogenesis, tumor growth, and metastatic progression of cancer. In vitro, axitinib has been shown to inhibit VEGF-mediated endothelial cell proliferation and survival. In vivo, axitinib inhibited the phosphorylation of VEGFR-2 in xenograft tumor vasculature that expressed the target in vivo and produced tumor growth delay, regression, and inhibited metastases in many experimental models of cancer. Pharmacodynamics Electrocardiography In a randomized, 2-way crossover study, 35 healthy subjects were administered a single oral 5 mg dose of INLYTA alone or on day 4 of a 7 day treatment with 400 mg/day ketoconazole. Axitinib at 5 mg was associated with a mean decrease in heart rate of 5 beats per minute. INLYTA did not result in large mean changes in the QTc interval (> 20 msec) up to 3 hours post-dose, however smaller increases in the QTc interval (< 10 msec) cannot be ruled out. INLYTA (axitinib) Product Monograph Page 19 of 37

20 Pharmacokinetics Table 3. Axitinib Pharmacokinetic Parameter in Patients with Metastatic Renal Cell Carcinoma after Administration of 5 mg Axitinib Twice Daily for 15 Days (N=20) C max (ng/ml) Geometric mean (% CV) a 27.8 (79) a % CV is the coefficient of variation around the arithmetic mean. b T max reported as median and range. AUC 0- (ng.h/ml) 265 (77) T max b (hr) 2.00 ( ) Absorption Following administration of a single, oral 5 mg dose of axitinib, the median time to achieve peak concentrations ranged from 2.5 to 4.1 hours. Daily dosing results in approximately 1.4-fold accumulation as compared to administration of a single dose. Axitinib exhibits approximately linear steady-state pharmacokinetics at doses between 1 mg and 20 mg. The mean absolute bioavailability of axitinib following administration of a single, oral 5 mg dose of axitinib is 58%. Administration of INLYTA with a moderate fat meal resulted in 10% lower exposure compared to overnight fasting. A high fat, high-calorie meal resulted in 19% higher exposure compared to overnight fasting. Distribution Axitinib is highly bound (>99%) to human plasma proteins with preferential binding to albumin and moderate binding to α 1 -acid glycoprotein. In patients with metastatic RCC (n=20), at the 5 mg twice daily dose in the fed state, the geometric mean (CV%) for clearance and apparent volume of distribution were 38 (80%) L/h and 160 (105%) L, respectively. Metabolism Axitinib is metabolized primarily in the liver by CYP3A4/5 and to a lesser extent by CYP1A2, CYP2C19, and UGT1A1. Excretion The plasma half life of axitinib ranges from 2.5 to 6.1 hours with steady state expected within 2 to 3 days of dosing. Following oral administration of a 5-mg radioactive dose of axitinib, approximately 41% of the radioactivity was recovered in feces and 23% was recovered in urine. Unchanged axitinib, accounting for 12% of the dose, was the major component identified in feces. Unchanged axitinib was not detected in urine; the carboxylic acid and sulfoxide metabolites accounted for INLYTA (axitinib) Product Monograph Page 20 of 37

21 the majority of radioactivity in urine. In plasma, the N-glucuronide represented the predominant radioactive component (50% of circulating radioactivity) and unchanged axitinib and the sulfoxide metabolite each accounted for approximately 20% of the circulating radioactivity. The sulfoxide and N-glucuronide metabolites show approximately 400-fold and 8000-fold less in vitro potency, respectively, against VEGFR-2 compared to axitinib. Special Populations and Conditions Age, Gender, and Race: Population pharmacokinetic analyses from patients with metastatic cancer (including metastatic RCC) and healthy volunteers indicate that there are no clinically relevant effects of age, gender, body weight, race, renal function, UGT1A1 genotype, or CYP2C19 genotype. Pediatrics: INLYTA has not been studied in patients <18 years of age (see WARNINGS AND PRECAUTIONS, Special Populations). Hepatic Impairment: In vitro and in vivo data indicate that axitinib is primarily metabolized by the liver. Compared to subjects with normal hepatic function, systemic exposure following a single dose of INLYTA was similar in subjects with mild hepatic impairment (Child-Pugh class A) and approximately 2-fold higher in subjects with moderate hepatic impairment (Child-Pugh class B). INLYTA has not been studied in subjects with severe hepatic impairment (Child-Pugh class C) (see DOSAGE AND ADMINISTRATION, WARNINGS AND PRECAUTIONS, Special Populations). Renal Impairment: INLYTA has not been studied in subjects with renal impairment. Population pharmacokinetic analysis (based on pre-existing renal function) was carried out in 590 healthy volunteers and patients, including five with severe renal impairment (15 ml/min CLcr <29 ml/min), 64 with moderate renal impairment (30 ml/min CLcr <59 ml/min), and 139 with mild renal impairment (60 ml/min CLcr <89 ml/min). Mild to severe renal impairment did not have meaningful effects on the pharmacokinetics of axitinib. Data from only one patient with end-stage renal disease are available. STORAGE AND STABILITY Store at a controlled room temperature of 25C; excursions permitted to 15-30C. DOSAGE FORMS, COMPOSITION AND PACKAGING INLYTA tablets are supplied as follows: 1 mg: red, film-coated, oval tablets debossed with Pfizer on one side and 1 XNB on the other and containing 1 mg of axitinib 5 mg: red, film-coated, triangular tablets debossed with Pfizer on one side and 5 XNB on the other and containing 5 mg of axitinib. INLYTA (axitinib) Product Monograph Page 21 of 37

22 Both tablets contain the following excipients: microcrystalline cellulose, lactose monohydrate, croscarmellose sodium, magnesium stearate, and Opadry II red as inactive ingredients. The Opadry II red film coating contains lactose monohydrate, HPMC 2910/Hypromellose 15cP, titanium dioxide, triacetin (glycerol triacetate), and red iron oxide. INLYTA 1 mg tablets are presented as follows: bottles of 60 foil/foil blister packs containing 28 ([14 tabs/blister] x [2 blisters]), or 56 ([14 tabs/blister] x [4 blisters]) tablets. INLYTA 5 mg tablets are presented as follows: bottles of 60 foil/foil blister packs containing 28 ([14 tabs/blister] x [2 blisters]), or 56 ([14 tabs/blister] x [4 blisters]) tablets. INLYTA (axitinib) Product Monograph Page 22 of 37

23 PART II: SCIENTIFIC INFORMATION PHARMACEUTICAL INFORMATION Drug Substance Proper name: Chemical name: Molecular formula: Molecular mass: Axitinib N-methyl-2-[3-((E)-2-pyridin-2-yl-vinyl)-1H-indazol-6-ylsulfanyl] benzamide C 22 H 18 N 4 OS Daltons Structural formula: Physicochemical properties: Axitinib is a white to light-yellow powder (Module 3, Section 3.2.S.1.3) with a pka of 4.8. The solubility of axitinib in aqueous media over the range ph 1.1 to ph 7.8 is in excess of 0.2 g/ml. The partition coefficient (n-octanol/water) is 3.5. INLYTA (axitinib) Product Monograph Page 23 of 37

24 CLINICAL TRIALS The safety and efficacy of INLYTA were evaluated in a randomized, open-label, multicenter Phase 3 study. Patients (N=723) with metastatic RCC whose disease had progressed on or after treatment with 1 prior systemic therapy, including sunitinib-, bevacizumab-, temsirolimus-, or cytokine-containing regimens were randomized (1:1) to receive INLYTA (n=361) or sorafenib (n=362). The primary endpoint, progression-free survival (PFS), was assessed using a blinded independent central review. Secondary endpoints included objective response rate (ORR), overall survival (OS), and quality of life (QoL). Study demographics and trial design Table 4 presents the patient demographics in the INLYTA Phase 3 clinical study. Of the 723 patients enrolled in this study, 389 patients (54%) had received 1 prior sunitinibbased therapy, 251 patients (35%) had received 1 prior cytokine-based therapy (interleukin-2 or interferon-alpha), 59 patients (8%) had received 1 prior bevacizumab-based therapy, and 24 patients (3%) had received 1 prior temsirolimus-based therapy. The baseline demographic and disease characteristics were similar between the INLYTA and sorafenib groups with regard to age, gender, race, Eastern Cooperative Oncology Group (ECOG) performance status, geographic region, and prior treatment. INLYTA (axitinib) Product Monograph Page 24 of 37

25 Table 4. Summary of Patient Demographics in Phase 3 Trial of INLYTA (Intent to Treat Population) Characteristic INLYTA N=361 Sorafenib N=362 n (%) n (%) Age (years) < (66) 238 (66) (34) 124 (34) Gender Male 265 (73) 258 (71) Female 96 (27) 104 (29) Race White 278 (77) 269 (74) Asian 77 (21) 81 (22) Black 1 (<1) 4 (1) Other 5 (1) 8 (2) ECOG performance status ECOG (54) 200 (55) ECOG (45) 160 (44) ECOG >1 1 (<1) 0 (0) Geographic region North America 88 (24) 98 (27) Europe 187 (52) 170 (47) Asia 73 (20) 79 (22) Other 13 (4) 15 (4) MSKCC risk group Favorable 100 (28) 101 (28) Intermediate 134 (37) 130 (36) Poor 118 (33) 120 (33) NA 9 (2) 11 (3) Prior Treatment Sunitinib-containing regimen 192 (53) 195 (54) Cytokine-containing regimen 126 (35) 125 (35) Bevacizumab-containing regimen 31 (9) 29 (8) Temsirolimus-containing regimen 12 (3) 13 (4) ECOG: Eastern Cooperative Oncology Group, MSKCC: Memorial Sloan-Kettering Cancer Center Study results The average daily dose of INLYTA was approximately 5 mg twice daily. There was a statistically significant advantage for INLYTA over sorafenib for the primary endpoint of PFS (see Table 5 and Figures 1 to 3). The magnitude of the increase in median PFS in the axitinib arm as compared to the sorafenib arm varied in subgroups stratified by prior treatment. The subgroups of patients who failed prior therapy with temsirolimus or bevacizumab were too small for a reliable assessment of efficacy data. There was no statistically significant difference in OS between the two treatment arms. INLYTA (axitinib) Product Monograph Page 25 of 37

26 Table 5. Efficacy Results by Independent Assessment Endpoint/Study Population INLYTA Sorafenib HR (95% CI) P-value PFS a,b Overall ITT N= 361 N = 362 Median, months (95% CI) 6.7 (6.3, 8.6) 4.7 (4.6, 5.6) 0.67 (0.54, 0.81) < c Sunitinib-refractory subgroup N=194 N=195 Median, months (95% CI) 4.8 (4.5, 6.4) 3.4 (2.8, 4.7) 0.74 (0.57, 0.96) d Cytokine-refractory subgroup N=126 N=125 Median, months (95% CI) 12.1 (10.1, 13.9) 6.5 (6.3, 8.3) 0.46 (0.32, 0.68) < d OS Overall ITT N=361 N=362 Median, months (95% CI) 20.1 (16.7, 23.4) 19.2 (17.5, 22.3) 0.97 (0.80, 1.17) NS Sunitinib-refractory subgroup N=194 N=195 Median, months (95% CI) 15.2 (12.8, 18.3) 16.5 (13.7, 19.2) 1.00 (0.78, 1.27) NS Cytokine-refractory subgroup N=126 N=125 Median, months (95% CI) 29.4 (24.5, NE) 27.8 (23.1, 34.5) 0.81 (0.56, 1.19) NS CI: Confidence interval; CR: Complete response; HR: Hazard ratio (INLYTA/sorafenib); ITT: Intent to treat; NE: Not estimable; NS: not statistically significant; OS: overall survival; PFS: Progression-free survival; PR: Partial response a Time from randomization to progression or death due to any cause, whichever occurs first. b Assessed by independent radiology review according to RECIST. c Two-sided p-value from a log-rank test of treatment stratified by ECOG performance status and prior therapy (comparison is considered statistically significant if the two-sided p-value is <0.023). One-sided p-value is < from a log-rank test of treatment stratified by ECOG performance status and prior therapy (comparison is considered statistically significant if the one-sided p-value is <0.023). d Two-sided p-value from a log-rank test of treatment stratified by ECOG performance status. One-sided p-values for sunitinib and cytokine-refractory subgroups are p= and p<0.0001, respectively, from a log-rank test of treatment stratified by ECOG performance status. The objective response rate (ORR) was assessed by an independent radiology review according to RECIST criteria. Overall, 19.4% [95% CI: 15.4%, 23.9%] of patients in the axitinib treatment arm and 9.4% [95% CI: 6.6%, 12.9%] of patients in the sorafenib arm achieved a confirmed ORR. The risk ratio (RR) was 2.06 [95% CI: 1.41, 3.00], with a two-sided p-value of *. In the sunitinib-refractory subgroup, ORR was confirmed in 11.3% [95% CI: 7.2%, 16.7%] of patients in the axitinib arm and in 7.7% [95% CI: 4.4%, 12.4%] of patients in the sorafenib arm (RR of 1.48 [95% CI: 0.79, 2.75), two-sided p-value of ** ). In the cytokine-refractory subgroup, the ORR was confirmed in 32.5% [95% CI: 24.5%, 41.5%] of patients in the axitinib arm and in 13.6% [95% CI: 8.1%, 20.9%] of patients in the sorafenib arm (RR of 2.39 [95% CI: 1.43, 3.99], two-sided p-value of *** ). *One-sided p-value = ; **One-sided p-value = ; ***One-sided p-value = INLYTA (axitinib) Product Monograph Page 26 of 37

27 Figure 1. Kaplan-Meier Curve for Progression Free Survival by Independent Assessment for Overall Patient Population Figure 2. Kaplan-Meier Curve for Progression Free Survival by Independent Assessment for Prior Sunitinib Subgroup INLYTA (axitinib) Product Monograph Page 27 of 37

28 Figure 3. Kaplan-Meier Curve for Progression Free Survival by Independent Assessment for Prior Cytokine Subgroup The efficacy of INLYTA was independent of the following demographic and baseline disease characteristics: age, gender, race, geographic region, MSKCC status and ECOG status. In the pivotal study, the QoL assessments were based on self-reported global scores from protocol-specified questionnaires, EuroQoL EQ-5D and FKSI-15. Analysis compared patients on therapy in both arms. Although the assessments showed no statistically significant difference between treatment with axitinib or sorafenib, INLYTA demonstrated a 17% decrease in risk compared to sorafenib for the pre-specified time to deterioration (TTD) composite endpoint, defined as the time to the first occurrence of death, progression or meaningful deterioration in QoL based on the FKSI-15 questionnaire (HR = 0.83 [95% CI: 0.70, 0.98]; 2-sided p-value = ). One-sided p-value = DETAILED PHARMACOLOGY Also refer to PART I, ACTION AND CLINICAL PHARMACOLOGY. Nonclinical Pharmacology Safety Pharmacology INLYTA (axitinib) Product Monograph Page 28 of 37