EVENITY

6 ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the label: Major adverse cardiac events [see Boxed Warning and Warnings and Precautions (5.1) ] Hypersensitivity [see Contraindications (4) and Warnings and Precautions (5.2) ] Hypocalcemia [see Contraindications (4) and Warnings and Precautions (5.3) ] Osteonecrosis of the Jaw [see Warnings and Precautions (5.4) ] Atypical Subtrochanteric and Diaphyseal Femoral Fractures [see Warnings and Precautions (5.5) ] The most common adverse reactions (≥ 5%) reported with EVENITY in clinical trials were arthralgia and headache. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Amgen Inc. at 1-800-77-AMGEN (1-800-772-6436) 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 safety of EVENITY for the treatment of postmenopausal osteoporosis was evaluated in a multicenter, randomized, double-blind, placebo-controlled study (Study 1, NCT01575834) of 7180 postmenopausal women aged 55 to 90 years (mean age of 71 years). A total of 3581 and 3576 women received at least one dose of EVENITY and placebo, respectively, administered once every month during the 12-month double-blind study period. Women received at least 500 mg calcium and 600 international units of vitamin D supplementation daily and 77% received a loading dose of 50,000 to 60,000 international units of vitamin D within one week of randomization (if serum 25-hydroxyvitamin D concentrations were 40 ng/mL or less). The safety of EVENITY for the treatment of postmenopausal osteoporosis in patients at high risk of fracture was evaluated in a multicenter, randomized, double-blind, alendronate-controlled study (Study 2, NCT01631214) of 4093 postmenopausal women aged 55 to 90 years (mean age of 74 years). A total of 2040 and 2014 women received at least one dose of EVENITY and alendronate, respectively, during the 12-month double-blind study period. Women received at least 500 mg calcium and 600 international units vitamin D supplementation daily and 74% received a loading dose of 50,000 to 60,000 international units of vitamin D within one week of randomization (if serum 25-hydroxyvitamin D concentrations were 40 ng/mL or less). In Study 1, during the 12-month double-blind treatment period, the incidence of all-cause mortality was 0.7% (24/3576) in the placebo group and 0.8% (29/3581) in the EVENITY group. The incidence of nonfatal serious adverse events was 8.3% in the placebo group and 9.1% in the EVENITY group. The percentage of patients who withdrew from the study due to adverse events was 1.1% in the placebo group and 1.1% in the EVENITY group. The most common adverse reactions reported with EVENITY (greater than or equal to 5% and at a higher incidence than placebo) were arthralgia and headache. The most common adverse reaction leading to discontinuation of EVENITY was arthralgia (6 subjects [0.2%] in the placebo group and 5 subjects [0.1%] in the EVENITY group). In Study 2, during the 12-month double-blind treatment period, the incidence of all-cause mortality was 1.1% (22/2014) in the alendronate group and 1.5% (30/2040) in the EVENITY group. The incidence of nonfatal serious adverse events was 13.3% in the alendronate group and 11.9% in the EVENITY group. The percentage of patients who withdrew from the study due to adverse events was 1.2% in the alendronate group and 1.2% in the EVENITY group. The most common adverse reactions reported with EVENITY (greater than or equal to 5%) were arthralgia and headache. Table 1 outlines the most common adverse reactions occurring in greater than or equal to 2% of EVENITY-treated women in at least one study. Table 1. Adverse Reactions Occurring in ≥ 2% of EVENITY-Treated Women in at Least One Study (Studies 1 and 2) Study 1 Study 2 Preferred Term Placebo (N = 3576) n (%) EVENITY (N = 3581) n (%) Alendronate (N = 2014) n (%) EVENITY (N = 2040) n (%) Arthralgia 434 (12.1) 468 (13.1) 194 (9.6) 166 (8.1) Headache 208 (5.8) 235 (6.6) 110 (5.5) 106 (5.2) Muscle spasms 140 (3.9) 163 (4.6) 81 (4.0) 70 (3.4) Edema peripheral 67 (1.9) 86 (2.4) 38 (1.9) 34 (1.7) Asthenia 79 (2.2) 84 (2.3) 53 (2.6) 50 (2.5) Neck pain 54 (1.5) 80 (2.2) 42 (2.1) 34 (1.7) Insomnia 68 (1.9) 72 (2.0) 36 (1.8) 34 (1.7) Paresthesia 62 (1.7) 72 (2.0) 34 (1.7) 29 (1.4) The adverse reactions described below are from the 12-month treatment periods of Study 1 (placebo-controlled) and Study 2 (alendronate-controlled). Major Adverse Cardiac Events (MACE) During the 12-month double-blind treatment period of the placebo-controlled trial (Study 1), myocardial infarction occurred in 9 (0.3%) women in the EVENITY group and 8 (0.2%) women in the placebo group; stroke occurred in 8 (0.2%) women in the EVENITY group and 10 (0.3%) women in the placebo group . These events occurred in patients with and without a history of myocardial infarction or stroke. Cardiovascular death occurred in 17 (0.5%) women in the EVENITY group and 15 (0.4%) women in the placebo group. The number of women with positively adjudicated MACE was 30 (0.8%) in the EVENITY group and 29 (0.8%) in the placebo group, yielding a hazard ratio of 1.03 (95% confidence interval [0.62, 1.72]) for EVENITY compared to placebo. During the 12-month double-blind treatment period of the active-controlled trial (Study 2), myocardial infarction occurred in 16 (0.8%) women in the EVENITY group and 5 (0.2%) women in the alendronate group; stroke occurred in 13 (0.6%) women in the EVENITY group and 7 (0.3%) women in the alendronate group. These events occurred in patients with and without a history of myocardial infarction or stroke. Cardiovascular death occurred in 17 (0.8%) women in the EVENITY group and 12 (0.6%) women in the alendronate group. The number of women with positively adjudicated MACE was 41 (2.0%) in the EVENITY group and 22 (1.1%) in the alendronate group, yielding a hazard ratio of 1.87 (95% confidence interval [1.11, 3.14]) for EVENITY compared to alendronate [see Boxed Warning and Warnings and Precautions (5.1) ]. Hypersensitivity Reactions Across both trials, hypersensitivity reactions were reported in 364 (6.5%) women in the EVENITY group and 365 (6.5%) women in the control group. Reported reactions included angioedema (3 [< 0.1%] women in the EVENITY group vs. 3 [< 0.1%] women in the control group), erythema multiforme (1 [< 0.1%] woman in the EVENITY group vs. no woman in the control group), dermatitis (32 [0.6%] women in the EVENITY group vs. 42 [0.8%] women in the control group), rash (60 [1.1%] women in the EVENITY group vs. 53 [0.9%] women in the control group), and urticaria (23 [0.4%] women in the EVENITY group vs. 27 [0.5%] women in the control group). Although angioedema, dermatitis and urticaria were not reported at a higher incidence with EVENITY than control, there were cases of angioedema, dermatitis and urticaria that were determined to be related to EVENITY use [see Contraindications (4) and Warnings and Precautions (5.2) ] . Hypocalcemia Across both trials, adverse events of hypocalcemia occurred in 2 EVENITY-treated women and in 1 woman in the control group. Decreases in albumin-adjusted serum calcium to below the lower limit of the reference range (8.3 mg/dL) were reported in 14 (0.2%) women in the EVENITY group and 10 (0.2%) women in the control group. No patient receiving EVENITY developed serum calcium less than 7.5 mg/dL. The nadir in albumin-adjusted serum calcium occurred by month 1 after EVENITY dosing in patients with normal renal function [see Contraindications (4) and Warnings and Precautions (5.3) ] . Injection Site Reactions Across both trials, injection site reactions occurred in 278 (4.9%) women in the EVENITY group and 157 (2.8%) women in the control group. The most common injection site reactions were pain (94 [1.7%] women in the EVENITY group; 70 [1.3%] women in the control group) and erythema (80 [1.4%] women in the EVENITY group and 14 [0.3%] women in the control group). Injection site reactions resulted in discontinuation of treatment in 7 (0.1%) EVENITY-treated patients and 3 (< 0.1%) patients in the control group. Osteonecrosis of the Jaw Across both trials, osteonecrosis of the jaw occurred in one patient during treatment with EVENITY [see Warnings and Precautions (5.4) ]. Atypical Subtrochanteric and Diaphyseal Fractures Across both trials, atypical femoral fracture occurred in one patient during treatment with EVENITY [see Warnings and Precautions (5.5) ].