Ixekizumab

12.1 Mechanism of Action Ixekizumab is a humanized IgG4 monoclonal antibody that selectively binds with the interleukin 17A (IL-17A) cytokine and inhibits its interaction with the IL-17 receptor. IL-17A is a naturally occurring cytokine that is involved in normal inflammatory and immune responses. Ixekizumab inhibits the release of proinflammatory cytokines and chemokines.

1 INDICATIONS AND USAGE TALTZ ® is a humanized interleukin-17A antagonist indicated for the treatment of: patients aged 6 years or older with moderate-to-severe plaque psoriasis who are candidates for systemic therapy or phototherapy. ( 1.1 ) adults with active psoriatic arthritis. ( 1.2 ) adults with active ankylosing spondylitis. ( 1.3 ) adults with active non-radiographic axial spondyloarthritis with objective signs of inflammation. ( 1.4 ) 1.1 Plaque Psoriasis TALTZ ® is indicated for the treatment of patients 6 years of age and older with moderate-to-severe plaque psoriasis who are candidates for systemic therapy or phototherapy. 1.2 Psoriatic Arthritis TALTZ is indicated for the treatment of adult patients with active psoriatic arthritis. 1.3 Ankylosing Spondylitis TALTZ is indicated for the treatment of adult patients with active ankylosing spondylitis. 1.4 Non-radiographic Axial Spondyloarthritis TALTZ is indicated for the treatment of adult patients with active non-radiographic axial spondyloarthritis (nr-axSpA) with objective signs of inflammation.

2 DOSAGE AND ADMINISTRATION Administer by subcutaneous injection. Adult Plaque Psoriasis ( 2.2 ) Recommended dosage is 160 mg (two 80 mg injections) at Week 0, followed by 80 mg at Weeks 2, 4, 6, 8, 10, and 12, then 80 mg every 4 weeks. Pediatric Plaque Psoriasis ( 2.3 ) For patients weighing greater than 50 kg, recommended dosage is 160 mg (two 80 mg injections) at Week 0, followed by 80 mg every 4 weeks. For patients weighing 25-50 kg, recommended dosage is 80 mg at Week 0, followed by 40 mg every 4 weeks. For patients weighing less than 25 kg, recommended dosage is 40 mg at Week 0, followed by 20 mg every 4 weeks. Psoriatic Arthritis ( 2.4 ) Recommended dosage is 160 mg by subcutaneous injection (two 80 mg injections) at Week 0, followed by 80 mg every 4 weeks. For psoriatic arthritis patients with coexistent moderate-to-severe plaque psoriasis, use the dosing regimen for adult plaque psoriasis. ( 2.2 ) TALTZ may be administered alone or in combination with a conventional DMARD (e.g., methotrexate). Ankylosing Spondylitis ( 2.5 ) Recommended dosage is 160 mg by subcutaneous injection (two 80 mg injections) at Week 0, followed by 80 mg every 4 weeks. Non-radiographic Axial Spondyloarthritis ( 2.6 ) Recommended dosage is 80 mg by subcutaneous injection every 4 weeks. 2.1 Testing and Procedures Prior to Treatment Initiation Perform the following evaluations prior to TALTZ initiation: Evaluate patients for tuberculosis (TB) infection. TALTZ initiation is not recommended in patients with active TB infection. Initiate treatment of latent TB prior to initiation of TALTZ [see Warnings and Precautions ( 5.2 )] . Complete all age-appropriate vaccinations as recommended by current immunization guidelines prior to initiating treatment with TALTZ [see Warnings and Precautions ( 5.6 )] . 2.2 Recommended Dosage in Adult Plaque Psoriasis TALTZ is administered by subcutaneous injection. The recommended dosage in adults with moderate-to-severe plaque psoriasis is 160 mg (two 80 mg injections) at Week 0, followed by 80 mg at Weeks 2, 4, 6, 8, 10, and 12, then 80 mg every 4 weeks. 2.3 Recommended Dosage in Pediatric Plaque Psoriasis TALTZ is administered by subcutaneous injection every 4 weeks (Q4W). The recommended dosage in pediatric patients from 6 to less than 18 years of age with moderate-to-severe plaque psoriasis is based on the following weight categories. Table 1: Recommended Dosage for Pediatric Patients 6 Years of Age and Older with Plaque Psoriasis Pediatric Patient's Weight Starting Dose (Week 0) Dose every 4 weeks (Q4W) Thereafter Greater than 50 kg 160 mg (two 80 mg injections) 80 mg 25 to 50 kg 80 mg 40 mg Less than 25 kg 40 mg 20 mg 2.4 Recommended Dosage in Psoriatic Arthritis The recommended dosage is 160 mg by subcutaneous injection (two 80 mg injections) at Week 0, followed by 80 mg every 4 weeks. For psoriatic arthritis patients with coexistent moderate-to-severe plaque psoriasis, use the dosing regimen for adult plaque psoriasis [see Dosage and Administration ( 2.2 )] . TALTZ may be administered alone or in combination with a conventional disease-modifying antirheumatic drug (cDMARD) (e.g., methotrexate). 2.5 Recommended Dosage in Ankylosing Spondylitis The recommended dosage is 160 mg by subcutaneous injection (two 80 mg injections) at Week 0, followed by 80 mg every 4 weeks. 2.6 Recommended Dosage in Non-radiographic Axial Spondyloarthritis The recommended dosage is 80 mg by subcutaneous injection every 4 weeks. 2.7 Preparation and Administration Instructions TALTZ is intended for use under the guidance and supervision of a healthcare provider. Adult patients may self-inject or caregivers may give injections of TALTZ after training in subcutaneous injection technique using the autoinjector or prefilled syringe. Safety and effectiveness of pediatric self-administration has not been established. Therefore, TALTZ should be administered to pediatric patients by a healthcare provider or by a caregiver who has received training and demonstrated proper subcutaneous injection technique. TALTZ 20 mg and 40 mg doses prepared from the TALTZ 80 mg/mL prefilled syringe should only be administered by a qualified healthcare professional [see Dosage and Administration ( 2.8 )] . The TALTZ “Instructions for Use” contains more detailed instructions on the preparation and administration of TALTZ [see Instructions for Use] . Before injection, remove TALTZ autoinjector or TALTZ prefilled syringe from the refrigerator and allow TALTZ to reach room temperature (30 minutes) without removing the needle cap. Inspect TALTZ visually for particulate matter and discoloration prior to administration. TALTZ is a clear and colorless to slightly yellow solution. Do not use if the liquid contains visible particles, is discolored or cloudy (other than clear and colorless to slightly yellow). Administer each injection at a different anatomic location (such as upper arms, thighs or any quadrant of abdomen) than the previous injection, a

6 ADVERSE REACTIONS The following adverse drug reactions are discussed in greater detail in other sections of the label: Infections [see Warnings and Precautions ( 5.1 )] Hypersensitivity Reactions [see Contraindications ( 4 ) and Warnings and Precautions ( 5.3 )] Eczematous Eruptions [see Warnings and Precautions ( 5.4 )] Inflammatory Bowel Disease [see Warnings and Precautions ( 5.5 )] Most common (≥1%) adverse reactions associated with TALTZ treatment are injection site reactions, upper respiratory tract infections, nausea, and tinea infections. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Eli Lilly and Company at 1-800-545-5979 (1-800-LillyRx) 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 and controlled 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. Adult Plaque Psoriasis Weeks 0 to 12 : Three placebo-controlled trials in subjects with plaque psoriasis were integrated to evaluate the safety of TALTZ compared to placebo for up to 12 weeks. A total of 1167 subjects (mean age 45 years; 66% men; 94% White) with plaque psoriasis received TALTZ (160 mg at Week 0, 80 mg every 2 weeks [Q2W] for 12 weeks) subcutaneously. In two of the trials, the safety of TALTZ (use up to 12 weeks) was also compared with an active comparator, U.S. approved etanercept [see Clinical Studies ( 14 )] . In the 12-week, placebo-controlled period, adverse events occurred in 58% of the TALTZ Q2W group (2.5 per subject-year of follow-up) compared with 47% of the placebo group (2.1 per subject-year of follow-up). Serious adverse events occurred in 2% of the TALTZ group (0.07 per subject-year of follow-up), and in 2% of the placebo group (0.07 per subject-year of follow-up). Table 2 summarizes the adverse reactions that occurred at a rate of at least 1% and at a higher rate in the TALTZ group than in the placebo group during the 12-week placebo-controlled period of the pooled clinical trials. Table 2: Adverse Reactions Occurring in ≥1% of the TALTZ Group and More Frequently than in the Placebo Group in the Plaque Psoriasis Clinical Trials through Week 12 a Upper respiratory tract infections cluster includes nasopharyngitis and rhinovirus infection. b U.S. approved etanercept. Adverse Reactions TALTZ 80 mg Q2W (N=1167) n (%) Etanercept b (N=287) n (%) Placebo (N=791) n (%) Injection site reactions 196 (17) 32 (11) 26 (3) Upper respiratory tract infections a 163 (14) 23 (8) 101 (13) Nausea 23 (2) 1 (<1) 5 (1) Tinea infections 17 (2) 0 1 (<1) Adverse reactions that occurred at rates less than 1% in the TALTZ group and more frequently than in the placebo group during the 12-week induction period included rhinitis, oral candidiasis, urticaria, influenza, conjunctivitis, inflammatory bowel disease, and angioedema. Weeks 13 to 60 : A total of 332 subjects received the recommended maintenance regimen of TALTZ 80 mg dosed every 4 weeks. During the maintenance period (Weeks 13 to 60), adverse events occurred in 80% of subjects treated with TALTZ (1.0 per subject-year of follow-up) compared to 58% of subjects treated with placebo (1.1 per subject-year of follow-up). Serious adverse events were reported in 4% of subjects treated with TALTZ (0.05 per subject-year of follow-up) and none in the subjects treated with placebo. Weeks 0 to 60 : Over the entire treatment period (Weeks 0 to 60), adverse events were reported in 67% of subjects treated with TALTZ (1.4 per subject-year of follow-up) compared to 48% of subjects treated with placebo (2.0 per subject-year of follow-up). Serious adverse events were reported in 3% of subjects treated with TALTZ (0.06 per subject-year of follow-up), and in 2% of subjects treated with placebo (0.06 per subject-year of follow-up). Specific Adverse Drug Reactions Injection Site Reactions The most frequent injection site reactions were erythema and pain. Most injection site reactions were mild-to-moderate in severity and did not lead to discontinuation of TALTZ. Infections In the 12-week, placebo-controlled period of the clinical trials in plaque psoriasis, infections occurred in 27% of subjects treated with TALTZ (1.2 per subject-year of follow-up) compared to 23% of subjects treated with placebo (1.0 per subject-year of follow-up). Serious infections occurred in 0.4% of subjects treated with TALTZ (0.02 per subject-year of follow-up) and in 0.4% of subjects treated with placebo (0.02 per subject-year of follow-up) [see Warnings and Precautions ( 5.1 )] . During the maintenance treatment period (Weeks 13 to 60), infections occurred in 57% of subjects treated with TALTZ (0.70 per subject-year of follow-up) compared to 32% of subjects treated with placebo (0.61 per subject-year of follow-up). Serious infections occurred in 0.9% of subjects treated with TALTZ (0.01 p