Gilotrif Drug Information

EGFR Mutation-Positive, Metastatic Non-Small Cell Lung Cancer

GILOTRIF is indicated for the first-line treatment of patients with metastatic non-small cell lung cancer (NSCLC) whose tumors have non-resistant epidermal growth factor receptor (EGFR) mutations as detected by an FDA-approved test. Limitations of Use : The safety and efficacy of GILOTRIF have not been established in patients whose tumors have resistant EGFR mutations.

Previously Treated, Metastatic Squamous

NSCLC GILOTRIF is indicated for the treatment of patients with metastatic squamous NSCLC progressing after platinum-based chemotherapy.

Patient Selection for Non-Resistant

EGFR Mutation-Positive Metastatic NSCLC Select patients for first-line treatment of metastatic NSCLC with GILOTRIF based on the presence of non-resistant EGFR mutations in tumor specimens. Information on FDA-approved tests for the detection of EGFR mutations in NSCLC is available at: http://www.fda.gov/CompanionDiagnostics.

Recommended Dosage

The recommended dosage of GILOTRIF is 40 mg orally once daily until disease progression or no longer tolerated by the patient. Take GILOTRIF at least 1 hour before or 2 hours after a meal. Do not take a missed dose within 12 hours of the next dose.

Dosage Modifications for Adverse Reactions Withhold

GILOTRIF for: Grade* 3 or higher adverse reactions Diarrhea of Grade 2 persisting for 2 or more consecutive days while taking anti-diarrheal medication Cutaneous reactions of Grade 2 that are prolonged (lasting more than 7 days) or intolerable * National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), v

Resume treatment when the adverse reaction fully resolves, returns to baseline, or

improves to Grade 1. Reinstitute GILOTRIF at a reduced dose, i.e., 10 mg per day less than the dose at which the adverse reaction occurred. Permanently discontinue GILOTRIF for: Life-threatening bullous, blistering, or exfoliating skin lesions Confirmed interstitial lung disease (ILD) Severe drug-induced hepatic impairment Gastrointestinal perforation Persistent ulcerative keratitis Symptomatic left ventricular dysfunction Severe or intolerable adverse reaction occurring at a dose of 20 mg per day

Dosage Modification for Pre-Existing Severe Renal Impairment

The recommended dosage of GILOTRIF in patients with pre-existing severe renal impairment (estimated glomerular filtration rate 15 to 29 mL/min /1.73 m 2 ) is 30 mg orally once daily . * Use the Modification of Diet in Renal Disease formula to estimate eGFR.

Dosage Modifications for Drug Interactions P-glycoprotein Inhibitors Reduce

GILOTRIF daily dose by 10 mg if not tolerated for patients who require therapy with a P-glycoprotein (P-gp) inhibitor. Resume the previous dose after discontinuation of the P-gp inhibitor as tolerated . P-glycoprotein Inducers Increase GILOTRIF daily dose by 10 mg as tolerated for patients who require chronic therapy with a P-gp inducer. Resume the previous dose 2 to 3 days after discontinuation of the P-gp inducer.

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 data in the Warnings and Precautions section reflect exposure to GILOTRIF for clinically significant adverse reactions in 4257 patients enrolled in LUX-Lung 3 (n=229) and LUX-Lung 8 (n=392), and 3636 patients with cancer enrolled in 42 studies of GILOTRIF administered alone or in combination with other anti-neoplastic drugs at GILOTRIF doses ranging from 10-70 mg daily or at doses 10-160 mg in other regimens. The mean exposure was 5.5 months.

The population included patients with various cancers, the most common of which were NSCLC, breast, colorectal, brain, and head and neck. The data described below reflect exposure to GILOTRIF as a single agent in LUX-Lung 3, a randomized, active-controlled trial conducted in patients with EGFR mutation-positive, metastatic NSCLC, and in LUX-Lung 8, a randomized, active-controlled trial in patients with metastatic squamous NSCLC progressing after platinum-based chemotherapy. EGFR Mutation-Positive Metastatic NSCLC The safety of GILOTRIF was evaluated in 229 EGFR-tyrosine kinase inhibitor-naïve patients with EGFR mutation-positive, metastatic non-squamous NSCLC enrolled in a randomized (2:1), multicenter, open-label trial (LUX-Lung 3). Patients received either GILOTRIF 40 mg daily until documented disease progression or intolerance to the therapy or pemetrexed 500 mg/m² followed after 30 minutes by cisplatin 75 mg/m² every three weeks for a maximum of six treatment courses.

The median exposure was 11 months for patients treated with GILOTRIF and 3.4 months for patients treated with pemetrexed/cisplatin. The overall trial population had a median age of 61 years; 61% of patients in the GILOTRIF arm and 60% of patients in the pemetrexed/cisplatin arm were younger than 65 years. A total of 64% of patients on GILOTRIF and 67% of pemetrexed/cisplatin patients were female.

More than two-thirds of patients were from Asia (GILOTRIF 70%; pemetrexed/cisplatin 72%). Serious adverse reactions were reported in 29% of patients treated with GILOTRIF. The most frequent serious adverse reactions reported in patients treated with GILOTRIF were diarrhea (6.6%); vomiting (4.8%); and dyspnea, fatigue, and hypokalemia (1.7% each). Fatal adverse reactions in GILOTRIF-treated patients in LUX-Lung 3 included pulmonary toxicity/ILD-like adverse reactions (1.3%), sepsis (0.43%), and pneumonia (0.43%). Dose reductions due to adverse reactions were required in 57% of GILOTRIF-treated patients. The most frequent adverse reactions that led to dose reduction in the patients treated with GILOTRIF were diarrhea (20%), rash/acne (19%), paronychia (14%), and stomatitis (10%). Discontinuation of therapy in GILOTRIF-treated patients for adverse reactions was 14.0%. The most frequent adverse reactions that led to discontinuation in GILOTRIF-treated patients were diarrhea (1.3%), ILD (0.9%), and paronychia (0.9%). Clinical trials of GILOTRIF excluded patients with an abnormal left ventricular ejection fraction (LVEF), i.e., below the institutional lower limit of normal. In LUX-Lung 3, all patients were evaluated for LVEF at screening and every 9 weeks thereafter in the GILOTRIF-treated group and as needed in the pemetrexed/cisplatin group.

More GILOTRIF-treated patients (2.2%; n=5) experienced ventricular dysfunction (defined as diastolic dysfunction, left ventricular dysfunction, or ventricular dilation; all

Increased alanine aminotransferase (ALT) 54 2 27 1 Increased alkaline phosphate 51

3 46 1 Decreased creatinine clearance 49 2 47 1 Increased aspartate aminotransferase (AST) 46 3 22 1 Decreased lymphocytes 38 9 32 14 Decreased potassium 30 8 11 3 Increased bilirubin 16 1 8 0 Previously Treated, Metastatic Squamous NSCLC The safety of GILOTRIF was evaluated in 392 GILOTRIF-treated patients with metastatic squamous NSCLC enrolled in a randomized, multicenter, open-label trial (LUX-Lung 8). Patients were required to have received at least four cycles of platinum-based chemotherapy, ECOG Performance Status (PS) 0 or 1, and normal left ventricular ejection fraction (LVEF). Patients received GILOTRIF 40 mg once daily (n=392) or erlotinib 150 mg once daily (n=395). Treatment continued until documented disease progression or intolerance to the therapy. The median exposure was 2.1 months for patients treated with GILOTRIF, 15% were exposed for at least 6 months, and 5% were exposed for at least 12 months. Among the 392 GILOTRIF-treated patients, the median age was 65 years, 53% were 65 years of age or older, 84% were male, 72% were White, 25% were Asian, ECOG PS 0 (32%) or 1 (68%). Serious adverse reactions occurred in 44% of patients treated with GILOTRIF. The most frequent serious adverse reactions in patients treated with GILOTRIF were pneumonia (6.6%), diarrhea (4.6%), and dehydration and dyspnea (3.1% each). Fatal adverse reactions in GILOTRIF-treated patients included ILD (0.5%), pneumonia (0.3%), respiratory failure (0.3%), acute renal failure (0.3%), and general physical health deterioration (0.3%). The most frequent adverse reactions that led to discontinuation in GILOTRIF-treated patients were diarrhea (4.1%) and rash/acne (2.6%). Dose reductions due to adverse reactions were required in 27% of GILOTRIF-treated patients and discontinuation of GILOTRIF for adverse reactions was required for 20%. The most frequent adverse reactions that led to dose reduction in the patients treated with GILOTRIF were diarrhea (15%), rash/acne (5.9%), and stomatitis (3.1%). Tables 3 and 4 summarize common adverse reactions and laboratory abnormalities in LUX-Lung 8. Table 3 Adverse Reactions Reported in ≥10% of GILOTRIF-Treated Patients in LUX-Lung 8* Adverse Reaction GILOTRIF n=392 Erlotinib n=395 All Grades (%) Grade 3-4 (%) All Grades (%) Grade 3-4 (%) *NCI CTCAE v 3.0 1 Includes stomatitis, aphthous stomatitis, mucosal inflammation, mouth ulceration, oral mucosa erosion, mucosal erosion, mucosal ulceration 2 Includes acne, dermatitis, acneiform dermatitis, eczema, erythema, exfoliative rash, folliculitis, rash, rash generalized, rash macular, rash maculo-papular, rash pruritic, rash pustular, skin exfoliation, skin fissures, skin lesion, skin reaction, skin toxicity, skin ulcer 3 Includes paronychia, nail infection, nail bed infection Gastrointestinal disorders Diarrhea 75 11 41 3 Stomatitis 1 30 4 11 1 Nausea 21 2 16 1 Vomiting 13 1 10 1 Skin and subcutaneous tissue disorders Rash/acneiform dermatitis 2 70 7 70 11 Pruritus 10 0 13 0 Metabolism and nutrition disorders Decreased appetite 25 3 26 2 Infections Paronychia 3 11 1 5 0 Table 4 Laboratory Abnormalities Occurring in ≥10% of GILOTRIF Arm and at ≥2% Higher Incidence than in Erlotinib Arm in LUX-Lung 8* Laboratory Abnormality GILOTRIF n=392 Erlotinib n=395 All Grades (%) Grades 3-4 (%) All Grades (%) Grades 3-4 (%) *NCI CTCAE v

Increased alkaline phosphate 34 2 31 0 Decreased white blood cell count

12 1 8 1 Decreased potassium 11 1 8 1 Other clinically important laboratory abnormalities observed in patients treated with GILOTRIF that are not listed in Table 4 are: increased alanine aminotransferase (10% Grade 1-4; 1% Grade 3-4), increased aspartate aminotransferase (7% Grade 1-4; 1% Grade 3-4), and increased bilirubin (3% Grade 1-4; 0 Grade 3-4). Less Common Adverse Reactions Other adverse reactions reported in patients treated with GILOTRIF in LUX-Lung 3 and LUX-Lung 8 include: Skin and subcutaneous disorders: nail disorders occurred in 9.2% and 2.8% of patients, respectively.

Postmarketing Experience

The following adverse reactions have been identified during postapproval use of GILOTRIF. 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. Pancreatitis Toxic epidermal necrolysis/Stevens Johnson syndrome

• P-glycoprotein (P-gp) Inhibitors: Co-administration of P-gp inhibitors can increase afatinib exposure. Reduce GILOTRIF by 10 mg per day if not tolerated.
• P-gp Inducers: Co-administration of chronic P-gp inducers orally can decrease afatinib exposure. Increase GILOTRIF by 10 mg per day as tolerated. Effect of P-glycoprotein (P-gp) Inhibitors and Inducers Concomitant taking of P-gp inhibitors (including but not limited to ritonavir, cyclosporine A, ketoconazole, itraconazole, erythromycin, verapamil, quinidine, tacrolimus, nelfinavir, saquinavir, and amiodarone) with GILOTRIF can increase exposure to afatinib. Reduce GILOTRIF daily dose as recommended. Concomitant taking of P-gp inducers (including but not limited to rifampicin, carbamazepine, phenytoin, phenobarbital, and St. John's wort) with GILOTRIF can decrease exposure to afatinib. Increase GILOTRIF daily dose as recommended.

Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action , GILOTRIF can cause fetal harm when administered to a pregnant woman. There are no available data on the use of GILOTRIF in pregnant women. Administration of afatinib to pregnant rabbits during organogenesis at exposures approximately 0.2 times the exposure in humans at the recommended dose of 40 mg daily resulted in embryotoxicity and, in rabbits showing maternal toxicity, increased abortions at late gestational stages (see Data ). Advise a pregnant woman of the potential risk to a fetus.

The background risk of major birth defects and miscarriage for the indicated population is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data In an embryo-fetal development study in rabbits, administration of afatinib to pregnant animals at doses of 5 mg/kg (approximately 0.2 times the exposure by AUC at the recommended human dose of 40 mg daily) or greater during the period of organogenesis caused increased post-implantation loss, and in animals showing maternal toxicity, abortion at late gestational stages.

In the same study, at the high dose level of 10 mg/kg (approximately 0.7 times the exposure by AUC at the recommended human dose of 40 mg daily), there were reduced fetal weights, and increases in the incidence of runts, as well as visceral and dermal variations. In an embryo-fetal development study in rats, there were skeletal alterations consisting of incomplete or delayed ossifications and reduced fetal weight at a dose of 16 mg/kg (approximately twice the exposure based on AUC at the recommended human dose of 40 mg daily).

Pediatric Use Safety and effectiveness of GILOTRIF in pediatric patients have not been established. The safety and efficacy of afatinib were assessed, but not established, in a single-arm, open-label, multicenter trial which included 37 pediatric patients 2 to <17 years of age with recurrent/refractory solid tumors with known ErbB pathway deregulation who received 80% of the adult dose per body surface area. No new safety signals were observed in pediatric patients in this trial.

In these 37 patients, the pharmacokinetic parameters were within range of values in adults.

Overdose was reported in 2 healthy adolescents each of whom ingested 360 mg of GILOTRIF (as part of a mixed-drug ingestion) resulting in nausea, vomiting, asthenia, dizziness, headache, abdominal pain, and elevated amylase. Both subjects recovered.