Cabazitaxel

12.1 Mechanism of Action Cabazitaxel is a microtubule inhibitor. Cabazitaxel binds to tubulin and promotes its assembly into microtubules while simultaneously inhibiting disassembly. This leads to the stabilization of microtubules, which results in the inhibition of mitotic and interphase cellular functions.

1 INDICATIONS AND USAGE JEVTANA ® is indicated in combination with prednisone for the treatment of patients with metastatic castration-resistant prostate cancer previously treated with a docetaxel-containing treatment regimen. JEVTANA is a microtubule inhibitor indicated in combination with prednisone for treatment of patients with metastatic castration-resistant prostate cancer previously treated with a docetaxel-containing treatment regimen. ( 1 )

2 DOSAGE AND ADMINISTRATION Recommended Dose: JEVTANA 20 mg/m 2 administered every three weeks as a one-hour intravenous infusion in combination with oral prednisone 10 mg administered daily throughout JEVTANA treatment. ( 2.1 ) A dose of 25 mg/m 2 can be used in select patients at the discretion of the treating healthcare provider. ( 2.1 , 5.1 , 5.2 , 6.1 , 14 ) JEVTANA requires two dilutions prior to administration. ( 2.5 ) Use the entire contents of the accompanying diluent to achieve a concentration of 10 mg/mL JEVTANA. ( 2.5 ) PVC equipment should not be used. ( 2.5 ) Premedication Regimen: Administer intravenously 30 minutes before each dose of JEVTANA: Antihistamine (dexchlorpheniramine 5 mg or diphenhydramine 25 mg or equivalent antihistamine) Corticosteroid (dexamethasone 8 mg or equivalent steroid) H 2 antagonist ( 2.1 ) Antiemetic prophylaxis (oral or intravenous) is recommended as needed. ( 2.1 ) Dosage Modifications: See full prescribing information ( 2.2 , 2.3 , 2.4 ) 2.1 Dosing Information The recommended dose of JEVTANA is based on calculation of the Body Surface Area (BSA), and is 20 mg/m 2 administered as a one-hour intravenous infusion every three weeks in combination with oral prednisone 10 mg administered daily throughout JEVTANA treatment. A dose of 25 mg/m 2 can be used in select patients at the discretion of the treating healthcare provider [see Warnings and Precautions (5.1 , 5.2) , Adverse Reactions (6.1) , and Clinical Studies (14) ] . Primary prophylaxis with G-CSF is recommended in patients with high-risk clinical features. Consider primary prophylaxis with G-CSF in all patients receiving a dose of 25 mg/m 2 [see Contraindications (4) and Warnings and Precautions (5.1 , 5.2) ] . Premedicate at least 30 minutes prior to each dose of JEVTANA with the following intravenous medications to reduce the risk and/or severity of hypersensitivity [see Warnings and Precautions (5.3) ] : antihistamine (dexchlorpheniramine 5 mg, or diphenhydramine 25 mg or equivalent antihistamine), corticosteroid (dexamethasone 8 mg or equivalent steroid), H 2 antagonist. Antiemetic prophylaxis is recommended and can be given orally or intravenously as needed [see Warnings and Precautions (5.3) ] . JEVTANA injection single-dose vial requires two dilutions prior to administration [see Dosage and Administration (2.5) ] . 2.2 Dose Modifications for Adverse Reactions Reduce or discontinue JEVTANA dosing for adverse reactions as described in Table 1. Table 1: Recommended Dosage Modifications for Adverse Reactions in Patients Treated with JEVTANA Toxicity Dosage Modification Prolonged grade ≥3 neutropenia (greater than 1 week) despite appropriate medication including granulocyte-colony stimulating factor (G-CSF) Delay treatment until neutrophil count is >1,500 cells/mm 3 , then reduce dosage of JEVTANA by one dose level. Use G-CSF for secondary prophylaxis. Febrile neutropenia or neutropenic infection Delay treatment until improvement or resolution, and until neutrophil count is >1,500 cells/mm 3 , then reduce dosage of JEVTANA by one dose level. Use G-CSF for secondary prophylaxis. Grade ≥3 diarrhea or persisting diarrhea despite appropriate medication, fluid and electrolytes replacement Delay treatment until improvement or resolution, then reduce dosage of JEVTANA by one dose level. Grade 2 peripheral neuropathy Delay treatment until improvement or resolution, then reduce dosage of JEVTANA by one dose level. Grade ≥3 peripheral neuropathy Discontinue JEVTANA. Patients at a 20 mg/m 2 dose who require dose reduction should decrease dosage of JEVTANA to 15 mg/m 2 [see Adverse Reactions (6.1) ] . Patients at a 25 mg/m 2 dose who require dose reduction should decrease dosage of JEVTANA to 20 mg/m 2 . One additional dose reduction to 15 mg/m 2 may be considered [see Adverse Reactions (6.1) ] . 2.3 Dose Modifications for Hepatic Impairment Mild hepatic impairment (total bilirubin >1 to ≤1.5 × Upper Limit of Normal (ULN) or AST >1.5 × ULN): Administer JEVTANA at a dose of 20 mg/m 2 . Moderate hepatic impairment (total bilirubin >1.5 to ≤3 × ULN and AST = any): Administer JEVTANA at a dose of 15 mg/m 2 based on tolerability data in these patients; however, the efficacy of this dose is unknown. Severe hepatic impairment (total bilirubin >3 × ULN): JEVTANA is contraindicated in patients with severe hepatic impairment [see Warning and Precautions (5.8) and Clinical Pharmacology (12.3) ] . 2.4 Dose Modifications for Use with Strong CYP3A Inhibitors Concomitant drugs that are strong CYP3A inhibitors (e.g., ketoconazole, itraconazole, clarithromycin, atazanavir, indinavir, nefazodone, nelfinavir, ritonavir, saquinavir, telithromycin, voriconazole) may increase plasma concentrations of cabazitaxel. Avoid the coadministration of JEVTANA with these drugs. If patients require coadministration of a strong CYP3A inhibitor, consider a 25% JEVTANA dose reduction [see Drug Interactions (7.1) and Clinical Pharmacology (12.3) ] . 2.5 Pre

6 ADVERSE REACTIONS The following serious adverse reactions are discussed in greater detail in another section of the label: Bone Marrow Suppression [see Warnings and Precautions (5.1) ] Increased Toxicities in Elderly Patients [see Warnings and Precautions (5.2) ] Hypersensitivity Reactions [see Warnings and Precautions (5.3) ] Gastrointestinal Adverse Reactions [see Warnings and Precautions (5.4) ] Renal Failure [see Warnings and Precautions (5.5) ] Urinary Disorders Including Cystitis [see Warnings and Precautions (5.6) ] Respiratory Disorders [see Warnings and Precautions (5.7) ] Use in Patients with Hepatic Impairment [see Warnings and Precautions (5.8) ] Most common all grades adverse reactions and laboratory abnormalities (≥10%) with JEVTANA 20 mg/m 2 or 25 mg/m 2 are neutropenia, anemia, diarrhea, nausea, fatigue, asthenia, vomiting, hematuria, constipation, decreased appetite, back pain, and abdominal pain. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact sanofi-aventis U.S. LLC at 1-800-633-1610 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, the adverse reaction rates observed cannot be directly compared to rates in other trials and may not reflect the rates observed in clinical practice. TROPIC Trial (JEVTANA 25 mg/m 2 compared to mitoxantrone) The safety of JEVTANA in combination with prednisone was evaluated in 371 patients with metastatic castration-resistant prostate cancer treated in the randomized TROPIC trial, compared to mitoxantrone plus prednisone. Deaths due to causes other than disease progression within 30 days of last study drug dose were reported in 18 (5%) JEVTANA-treated patients and 3 (<1%) mitoxantrone-treated patients. The most common fatal adverse reactions in JEVTANA-treated patients were infections (n=5) and renal failure (n=4). The majority (4 of 5 patients) of fatal infection-related adverse reactions occurred after a single dose of JEVTANA. Other fatal adverse reactions in JEVTANA-treated patients included ventricular fibrillation, cerebral hemorrhage, and dyspnea. The most common (≥10%) grade 1–4 adverse reactions were anemia, leukopenia, neutropenia, thrombocytopenia, diarrhea, fatigue, nausea, vomiting, constipation, asthenia, abdominal pain, hematuria, back pain, anorexia, peripheral neuropathy, pyrexia, dyspnea, dysgeusia, cough, arthralgia, and alopecia. The most common (≥5%) grade 3–4 adverse reactions in patients who received JEVTANA were neutropenia, leukopenia, anemia, febrile neutropenia, diarrhea, fatigue, and asthenia. Treatment discontinuations due to adverse reactions occurred in 18% of patients who received JEVTANA and 8% of patients who received mitoxantrone. The most common adverse reactions leading to treatment discontinuation in the JEVTANA group were neutropenia and renal failure. Dose reductions were reported in 12% of JEVTANA-treated patients and 4% of mitoxantrone-treated patients. Dose delays were reported in 28% of JEVTANA-treated patients and 15% of mitoxantrone-treated patients. Table 2: Adverse Reactions Graded using NCI CTCAE version 3. and Hematologic Abnormalities in ≥5% of Patients in TROPIC Adverse Reactions JEVTANA 25 mg/m 2 every 3 weeks with prednisone 10 mg daily n=371 Mitoxantrone 12 mg/m 2 every 3 weeks with prednisone 10 mg daily n=371 Grade 1–4 % Grade 3–4 % Grade 1–4 % Grade 3–4 % Blood and Lymphatic System Disorders Anemia Based on laboratory values, JEVTANA: n=369, mitoxantrone: n=370. 98 11 82 5 Leukopenia 96 69 93 42 Neutropenia 94 82 87 58 Thrombocytopenia 48 4 43 2 Febrile Neutropenia 7 7 1 1 Gastrointestinal Disorders Diarrhea 47 6 11 <1 Nausea 34 2 23 <1 Vomiting 22 2 10 0 Constipation 20 1 15 <1 Abdominal Pain Includes abdominal discomfort, abdominal pain lower, abdominal pain upper, abdominal tenderness, and GI pain. 17 2 6 0 Dyspepsia Includes gastroesophageal reflux disease and reflux gastritis. 10 0 2 0 General Disorders and Administration Site Conditions Fatigue 37 5 27 3 Asthenia 20 5 12 2 Pyrexia 12 1 6 <1 Peripheral Edema 9 <1 9 <1 Mucosal Inflammation 6 <1 3 <1 Pain 5 1 5 2 Renal and Urinary Tract Disorders Hematuria 17 2 4 <1 Dysuria 7 0 1 0 Musculoskeletal and Connective Tissue Disorders Back Pain 16 4 12 3 Arthralgia 11 1 8 1 Muscle Spasms 7 0 3 0 Metabolism and Nutrition Disorders Anorexia 16 <1 11 <1 Dehydration 5 2 3 <1 Nervous System Disorders Peripheral Neuropathy Includes peripheral motor neuropathy and peripheral sensory neuropathy. 13 <1 3 <1 Dysgeusia 11 0 4 0 Dizziness 8 0 6 <1 Headache 8 0 5 0 Respiratory, Thoracic and Mediastinal Disorders Dyspnea 12 1 4 <1 Cough 11 0 6 0 Skin and Subcutaneous Tissue Disorders Alopecia 10 0 5 0 Investigations Weight Decreased 9 0 8 <1 Infections and Infestations Urinary Tract Infection Includes urinary tract infection enterococcal and urinary tract infection fungal. 8 2 3 1 Cardiac Disorders Arrhythmia Includes atrial fibrillation, atrial flutter, atrial t

7 DRUG INTERACTIONS Avoid coadministration of JEVTANA with strong CYP3A inhibitors. If patients require coadministration of a strong CYP3A inhibitor, consider a 25% JEVTANA dose reduction. ( 2.4 , 7.1 , 12.3 ) 7.1 CYP3A Inhibitors Cabazitaxel is primarily metabolized through CYP3A [see Clinical Pharmacology (12.3) ] . Strong CYP3A inhibitors (e.g., ketoconazole, itraconazole, clarithromycin, atazanavir, indinavir, nefazodone, nelfinavir, ritonavir, saquinavir, telithromycin, voriconazole) may increase plasma concentrations of cabazitaxel. Avoid the coadministration of JEVTANA with strong CYP3A inhibitors. If patients require coadministration of a strong CYP3A inhibitor, consider a 25% JEVTANA dose reduction [see Dosage and Administration (2.4) and Clinical Pharmacology (12.3) ].