AZELASTINE HYDROCHLORIDE AND FLUTICASONE PROPIONATE

1 INDICATIONS AND USAGE Azelastine hydrochloride and fluticasone propionate nasal spray is indicated for the relief of symptoms of seasonal allergic rhinitis in adult and pediatric patients 6 years of age and older. Azelastine hydrochloride and fluticasone propionate nasal spray contains an H 1 -receptor antagonist and a corticosteroid, and is indicated for the relief of symptoms of seasonal allergic rhinitis in adult and pediatric patients 6 years of age and older. ( 1 )

2 DOSAGE AND ADMINISTRATION • Recommended dosage: 1 spray per nostril twice daily ( 2.1 ) • For nasal use only. ( 2.2 ) • Prime before initial use and when it has not been used for 14 or more days. ( 2.2 ) 2.1 Recommended Dosage The recommended dosage of azelastine hydrochloride and fluticasone propionate nasal spray is 1 spray (137 mcg of azelastine hydrochloride and 50 mcg of fluticasone propionate) in each nostril twice daily. 2.2 Important Administration Instructions • Administer azelastine hydrochloride and fluticasone propionate nasal spray by the nasal route only. • Shake the bottle gently before each use. • Avoid spraying azelastine hydrochloride and fluticasone propionate nasal spray into the eyes. If sprayed in the eyes, flush eyes with water for at least 10 minutes. Priming Prime azelastine hydrochloride and fluticasone propionate nasal spray before initial use by releasing 6 sprays or until a fine mist appears. Repriming (as needed) When azelastine hydrochloride and fluticasone propionate nasal spray has not been used for 14 or more days, reprime with 1 spray or until a fine mist appears.

5 WARNINGS AND PRECAUTIONS • Somnolence: Avoid engaging in hazardous occupations requiring complete mental alertness such as driving or operating machinery when taking azelastine hydrochloride and fluticasone propionate nasal spray. ( 5.1 ) • Avoid concurrent use of alcohol or other central nervous system (CNS) depressants with azelastine hydrochloride and fluticasone propionate nasal spray because further decreased alertness and impairment of CNS performance may occur. ( 5.1 ) • Epistaxis, nasal ulcerations, nasal septal perforation, impaired wound healing, Candida albicans infection: Monitor patients periodically for signs of adverse effects on the nasal mucosa. Avoid use in patients with recent nasal ulcers, nasal surgery, or nasal trauma. ( 5.2 ) • Glaucoma or posterior subcapsular cataracts: Monitor patients closely with a change in vision or with a history of increased intraocular pressure, glaucoma, and/or cataracts. ( 5.3 ) • Potential worsening of existing tuberculosis; fungal, bacterial, viral, or parasitic infections; or ocular herpes simplex. More serious or even fatal course of chickenpox or measles in susceptible patients. Use caution in patients with the above because of the potential for worsening of these infections. ( 5.4 ) • Hypercorticism and adrenal suppression with very high dosages or at the regular dosage in susceptible individuals. If such changes occur, discontinue azelastine hydrochloride and fluticasone propionate nasal spray slowly. ( 5.5 ) • Potential reduction in growth velocity in children. Monitor growth routinely in pediatric patients receiving azelastine hydrochloride and fluticasone propionate nasal spray. ( 5.7 , 8.4 ) 5.1 Somnolence In clinical trials, the occurrence of somnolence has been reported in some patients (6 of 853 adult and adolescent patients and 2 of 416 children) taking azelastine hydrochloride and fluticasone propionate nasal spray in placebo controlled trials [see Adverse Reactions ( 6.1 )] . Patients should be cautioned against engaging in hazardous occupations requiring complete mental alertness and motor coordination such as operating machinery or driving a motor vehicle after administration of azelastine hydrochloride and fluticasone propionate nasal spray. Concurrent use of azelastine hydrochloride and fluticasone propionate nasal spray with alcohol or other central nervous system depressants should be avoided because additional reductions in alertness and additional impairment of central nervous system performance may occur [see Drug Interactions ( 7.1 )]. 5.2 Local Nasal Effects In clinical trials of 2 to 52 weeks’ duration, epistaxis was observed more frequently in patients treated with azelastine hydrochloride and fluticasone propionate nasal spray than those who received placebo [see Adverse Reactions ( 6 )] . Instances of nasal ulceration and nasal septal perforation have been reported in patients following the nasal application of corticosteroids. There were no instances of nasal ulceration or nasal septal perforation observed in clinical trials with azelastine hydrochloride and fluticasone propionate nasal spray. Because of the inhibitory effect of corticosteroids on wound healing, patients who have experienced recent nasal ulcers, nasal surgery, or nasal trauma should avoid use of azelastine hydrochloride and fluticasone propionate nasal spray until healing has occurred. In clinical trials with fluticasone propionate administered nasally, the development of localized infections of the nose and pharynx with Candida albicans has occurred. When such an infection develops, it may require treatment with appropriate local therapy and discontinuation of treatment with azelastine hydrochloride and fluticasone propionate nasal spray. Patients using azelastine hydrochloride and fluticasone propionate nasal spray over several months or longer should be examined periodically for evidence of Candida infection or other signs of adverse effects on the nasal mucosa. 5.3 Glauc…

4 CONTRAINDICATIONS None. None. ( 4 )

7 DRUG INTERACTIONS No formal drug interaction studies have been performed with azelastine hydrochloride and fluticasone propionate nasal spray. The drug interactions of the combination are expected to reflect those of the individual components. • Potent inhibitors of cytochrome P450 (CYP) 3A4: May increase blood levels of fluticasone propionate. • Ritonavir: Coadministration is not recommended. ( 5.6 , 7.2 ) • Other potent CYP3A4 inhibitors, such as ketoconazole: use caution with coadministration. ( 5.6 , 7.2 ) 7.1 Central Nervous System Depressants Concurrent use of azelastine hydrochloride and fluticasone propionate nasal spray with alcohol or other central nervous system depressants should be avoided because somnolence and impairment of central nervous system performance may occur [see Warnings and Precautions ( 5.1 )] . 7.2 Cytochrome P450 3A4 Ritonavir (a strong CYP3A4 inhibitor) significantly increased plasma fluticasone propionate exposure following administration of fluticasone propionate aqueous nasal spray, resulting in significantly reduced serum cortisol concentrations [see Clinical Pharmacology ( 12.3 )] . During postmarketing use, there have been reports of clinically significant drug interactions in patients receiving fluticasone propionate and ritonavir, resulting in systemic corticosteroid effects including Cushing syndrome and adrenal suppression. Therefore, coadministration of fluticasone propionate and ritonavir is not recommended unless the potential benefit to the patient outweighs the risk of systemic corticosteroid side effects. Ketoconazole (also a strong CYP3A4 inhibitor), administered in multiple 200 mg doses to steady-state, increased plasma exposure of fluticasone propionate, reduced plasma cortisol AUC, but had no effect on urinary excretion of cortisol, following administration of a single 1000 mcg dose of fluticasone propionate by oral inhalation route. Caution should be exercised when azelastine hydrochloride and fluticasone propionate nasal spray is coadministered with ketoconazole and other known strong CYP3A4 inhibitors.

8.1 Pregnancy Risk Summary Limited data from postmarketing experience with azelastine hydrochloride and fluticasone propionate nasal spray in pregnant women have not identified any drug associated risks of miscarriage, birth defects, or other adverse maternal or fetal outcomes. The individual components of azelastine hydrochloride and fluticasone propionate nasal spray have been marketed for decades. While the data regarding the use of nasal preparations of fluticasone propionate in pregnancy are limited, data from clinical studies of inhaled fluticasone propionate do not indicate an increased risk of adverse maternal or fetal outcomes. Animal reproduction studies with azelastine hydrochloride and fluticasone propionate nasal spray are not available; however, studies are available with its individual components, azelastine hydrochloride and fluticasone propionate. In animal reproduction studies, there was no evidence of fetal harm in animals at oral doses of azelastine hydrochloride approximately 10 times the clinical daily dose. Oral administration of azelastine hydrochloride to pregnant mice, rats, and rabbits, during the period of organogenesis, produced developmental toxicity that included structural abnormalities, decreased embryo-fetal survival, and decreased fetal body weights at doses 530 times and higher than the maximum recommended human daily nasal dose (MRHDID) of 0.548 mg. However, the relevance of these findings in animals to pregnant women was considered questionable based upon the high animal to human dose multiple. In animal reproduction studies, fluticasone propionate administered via nose-only inhalation to rats decreased fetal body weight, but did not induce teratogenicity at a maternal toxic dose less than the MRHDID on a mcg/m 2 basis. Teratogenicity, characteristic of corticosteroids, decreased fetal body weight and/or skeletal variations, in rats, mice, and rabbits were observed with subcutaneously administered maternal toxic doses of fluticasone propionate less than the MRHDID of 200 mcg on a mcg/m 2 basis (see Data) . Experience with corticosteroids suggests that rodents are more prone to teratogenic effects from corticosteroids than humans. The estimated background risk of major birth defects and miscarriage for the indicated populations is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Data Animal Data: Azelastine Hydrochloride: In an embryo-fetal development study in mice dosed during the period of organogenesis, azelastine hydrochloride caused embryo-fetal death, structural abnormalities (cleft palate; short or absent tail; fused, absent or branched ribs), delayed ossification, and decreased fetal weight at approximately 610 times the MRHDID in adults (on a mg/m 2 basis at a maternal oral dose of 68.6 mg/kg/day), which also caused maternal toxicity as evidenced by decreased maternal body weight. Neither fetal nor maternal effects occurred in mice at approximately 25 times the MRHDID in adults (on a mg/m 2 basis at a maternal oral dose of 3 mg/kg/day). In an embryo-fetal development study in pregnant rats dosed during the period of organogenesis from gestation days 7 to 17, azelastine hydrochloride caused structural abnormalities (oligo-and brachydactylia), delayed ossification, and skeletal variations, in the absence of maternal toxicity, at approximately 530 times the MRHDID in adults (on a mg/m 2 basis at a maternal oral dose of 30 mg/kg/day). Azelastine hydrochloride caused embryo-fetal death and decreased fetal weight and severe maternal toxicity at approximately 1200 times the MRHDID (on a mg/m 2 basis at a maternal oral dose of 68.6 mg/kg/day). Neither fetal nor maternal effects occurred at approximately 55 times the MRHDID (on a mg/m 2 basis at a maternal oral dose of 3 m…

6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: • Somnolence [see Warnings and Precautions ( 5.1 )] • Local nasal effects, including epistaxis, nasal ulceration, nasal septal perforation, impaired wound healing, and Candida albicans infection [see Warnings and Precautions ( 5.2 )] • Glaucoma and Cataracts [see Warnings and Precautions ( 5.3 )] • Immunosuppression and Risk of Infections [see Warnings and Precautions ( 5.4 )] • Hypercorticism and Adrenal Suppression, including growth reduction [see Warnings and Precautions ( 5.5 and 5.7 ), Use in Specific Populations ( 8.4 )] The most common adverse reactions (≥2% incidence) are: dysgeusia, epistaxis, and headache. (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Padagis at 1-866-634-9120 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 clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect rates observed in practice. Adults and Adolescents 12 Years of Age and Older: The safety data described below in adults and adolescents 12 years of age and older reflect exposure to azelastine hydrochloride and fluticasone propionate nasal spray in 853 patients (12 years of age and older; 36% male and 64% female) with seasonal allergic rhinitis in 3 double-blind, placebo-controlled clinical trials of 2-week duration. The racial distribution for the 3 clinical trials was 80% white, 16% black, 2% Asian, and 1% other. In the 3 placebo controlled clinical trials of 2-week duration, 3411 patients with seasonal allergic rhinitis were treated with 1 spray per nostril of azelastine hydrochloride and fluticasone propionate nasal spray, azelastine hydrochloride nasal spray, fluticasone propionate nasal spray, or placebo, twice daily. The azelastine hydrochloride and fluticasone propionate comparators use the same vehicle and device as azelastine hydrochloride and fluticasone propionate nasal spray and are not commercially marketed. Overall, adverse reactions were 16% in the azelastine hydrochloride and fluticasone propionate nasal spray treatment groups, 15% in the azelastine hydrochloride nasal spray groups, 13% in the fluticasone propionate nasal spray groups, and 12% in the placebo groups. Overall, 1% of patients in both the azelastine hydrochloride and fluticasone propionate nasal spray and placebo groups discontinued due to adverse reactions. Table 1 contains adverse reactions reported with frequencies greater than or equal to 2% and more frequently than placebo in patients treated with azelastine hydrochloride and fluticasone propionate nasal spray in the seasonal allergic rhinitis controlled clinical trials. Table 1. Adverse Reactions with ≥2% Incidence and More Frequently than Placebo in Placebo-Controlled Trials of 2 Weeks Duration with Azelastine Hydrochloride and Fluticasone Propionate Nasal Spray in Adult and Adolescent Patients with Seasonal Allergic Rhinitis 1 spray per nostril twice daily Azelastine Hydrochloride and Fluticasone Propionate Nasal Spray (N=853)* Azelastine Hydrochloride Nasal Spray † (N=851) Fluticasone Propionate Nasal Spray † (N=846) Vehicle Placebo (N=861) Dysgeusia 30 (4%) 44 (5%) 4 (1%) 2 (<1%) Headache 18 (2%) 20 (2%) 20 (2%) 10 (1%) Epistaxis 16 (2%) 14 (2%) 14 (2%) 15 (2%) *Safety population N=853, intent-to-treat population N=848 † Not commercially marketed In the above trials, somnolence was reported in <1% of patients treated with azelastine hydrochloride and fluticasone propionate nasal spray (6 of 853) or vehicle placebo (1 of 861) [see Warnings and Precautions ( 5.1 )] . Pediatric Patients 6-11 Years of Age: The safety data described below in children 6-11 years of age reflect exposure to azelastine hydrochloride and fluticasone propionate nasal spray in 152 patients (6-11 years of age; …