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      Saini SS, Bindslev-Jensen C, Maurer M, et al. Efficacy and safety of omalizumab in patients with chronic idiopathic/spontaneous urticaria who remain symptomatic on H1 antihistamines: a randomized, placebo-controlled study [published correction appears in J Invest Dermatol. 2015;135(3):925]. J Invest Dermatol. 2015;135(1):67-75.

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      Hoskin B, Ortiz B, Paknis B, Kavati A. Exploring the real-world profile of refractory and non-refractory chronic idiopathic urticaria in the USA: clinical burden and healthcare resource use. Curr Med Res Opin. 2019;35(8):1387-1395.

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      XOLAIR. Prescribing information. Genentech USA, Inc. and Novartis Pharmaceuticals Corporation.

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      Grattan CEH. Urticaria and angioedema. In: Bolognia JL, Jorizzo JL, Schaffer JV, eds. Dermatology. 3rd ed. Philadelphia, PA. Elsevier Saunders; 2012;291-306.

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      Roche. FDA approves Xolair (omalizumab) for people with chronic idiopathic urticaria, a form of chronic hives. https://www.roche.com/media/releases/med-cor-2020-12-01. March 2014. Accessed January 14, 2021.

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      Data on file. Genentech USA, Inc. South San Francisco, CA.

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      Zuberbier T, Abdul Latiff AH, Abuzakouk M, et al. The international EAACI/GA2LEN/EuroGuiDerm/APAAACI guideline for the definition, classification, diagnosis, and management of urticaria [published online ahead of print, September 18, 2021]. Allergy. 2021;10.1111/all.15090. doi:10.1111/all.15090

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      Busse W, Corren J, Lanier BQ, et al. Omalizumab, anti-lgE recombinant humanized monoclonal antibody, for the treatment of severe allergic asthma. J Allergy Clin Immunol. 2001;108(2):184-190. doi:10.1067/mai.2001.117880

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      Soler M, Matz J, Townley R, et al. The anti-IgE antibody omalizumab reduces exacerbations and steroid requirement in allergic asthmatics. Eur Respir J. 2001;18(2):254-261.

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      Eguiluz-Gracia I, Layhadi JA, Rondon C, Shamji MH. Mucosal IgE immune responses in respiratory diseases. Curr Opin Pharmacol. 2019;46:100-107.

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      Gould HJ, Sutton BJ. IgE in allergy and asthma today. Nat Rev Immunol. 2008;8(3):205-217.

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      Galli SJ, Tsai M. IgE and mast cells in allergic disease. Nat Med. 2012;18(5):693-704.

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      Akdis CA, Arkwright PD, Brüggen M-C, et al. Type 2 immunity in the skin and lungs. Allergy. 2020;75(7):1582-1605.

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      Tran TN, Zeiger RS, Peters SP, et al. Overlap of atopic, eosinophilic, and TH2-high asthma phenotypes in a general population with current asthma. Ann Allergy Asthma Immunol. 2016;116(1):37-42.

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      Allergens and allergic asthma. Asthma and Allergy Foundation of America. Accessed August 11, 2021. https://www.aafa.org/allergic-asthma/

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      Chipps BE, Zeiger RS, Luskin AT, et al. Baseline asthma burden, comorbidities, and biomarkers in omalizumab-treated patients in PROSPERO. Ann Allergy Asthm Immunol. 2017;119(6):524-532.e2.

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      Ledford DK, Lockey RF. Asthma and comorbidities. Curr Opin Allergy Clin Immunol. 2013;13(1):78-86.

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      Comberiati P, McCormack K, Malka-Rais J, Spahn JD. Proportion of severe asthma patients eligible for mepolizumab therapy by age and age of onset of asthma. J Allergy Clin Immunol Pract. 2019;7(8):2689-2696.e2.

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      Castillo JR, Peters SP, Busse WW. Asthma exacerbations: pathogenesis, prevention, and treatment. J Allergy Clin Immunol Pract. 2017;5(4):918-927.

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      Siles RI, Hsieh FH. Allergy blood testing: a practical guide for clinicians. Cleve Clin J Med. 2011;78(9):585-592. doi:10.3949/ccjm.78a.11023

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      National Heart, Lung, and Blood Institute. National Asthma Education and Prevention Program. Expert Panel Report 3: Guidelines for the Diagnosis and Management of Asthma. Full Report 2007. Bethesda, MD: National Institutes of Health; 2007. NIH publication 07-4051.

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      Bernstein IL, Li JT, Bernstein DI, et al. Allergy diagnostic testing: an updated practice parameter. Ann Allergy Asthma Immunol. 2008;100(3)(Suppl 3):S1-S148.

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      Akar-Ghibril N, Casale T, Custovic A, Phipatanakul W. Allergic endotypes and phenotypes of asthma. J Allergy Clin Immunol Pract. 2020;8:429-440.

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      Sonora Quest Laboratories. Test Interpretation and Management Options—Utilizing ImmunoCAP® KU/L Results. Accessed March 19, 2020. https://www.sonoraquest.com/media/2315/immunocap-ref-range_test-menu_0318.pdf

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      Kerkhof M, Dubois AE, Postma DS, Schouten JP, de Monchy JG. Role and interpretation of total serum IgE measurements in the diagnosis of allergic airway disease in adults. Allergy. 2003;58(9):905-911.

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      World Health Organization. Prevention of allergy and allergic asthma. Based on the WHO/WAO meeting on the prevention of allergy and allergic asthma; January 8-9, 2002; Geneva, Switzerland.

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      Casale TB, Chipps BE, Rosén K, et al. Response to omalizumab using patient enrichment criteria from trials of novel biologics in asthma. Allergy. 2018;73(2):490-497.

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      Arbes SJ Jr, Gergen PJ, Vaughn B, Zeldin DC. Asthma cases attributable to atopy: results from the Third National Health and Nutrition Examination Survey. J Allergy Clin Immunol. 2007;120(5):1139-1145.

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      Milgrom H, Fowler-Taylor A, Vidaurre CF, Jayawardene S. Safety and tolerability of omalizumab in children with allergic (IgE-mediated) asthma. Curr Med Res Opin. 2011;27(1):163-169.

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      Namazy JA, Blais L, Andrews EB, et al. Pregnancy outcomes in the omalizumab pregnancy registry and a disease-matched comparator cohort. J Allergy Clin Immunol. 2020;145(2):528-536.e1.

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      Gevaert P, Omachi TA, Corren J, et al. Efficacy and safety of omalizumab in nasal polyposis: 2 randomized phase 3 trials [published correction appears in J Allergy Clin Immunol. 2021;147(1):416]. J Allergy Clin Immunol. 2020;146(3):595-605. doi:10.1016/j.jaci.2020.05.032

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      Gevaert P, Calus L, Van Zele T, et al. Omalizumab is effective in allergic and nonallergic patients with nasal polyps and asthma. J Allergy Clin Immunol. 2013;131(1):110-6.e1. doi:10.1016/j.jaci.2012.07.047

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      Reddel HK, Taylor DR, Bateman ED, et al; American Thoracic Society/European Respiratory Society Task Force on Asthma Control and Exacerbations. An official American Thoracic Society/European Respiratory Society statement: asthma control and exacerbations: standardizing endpoints for clinical asthma trials and clinical practice. Am J Respir Crit Care Med. 2009;180(1):59-99.

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      Zazzali JL, Raimundo K, Trzaskoma B, Rosén KE. Improvements in health-related quality of life from GLACIAL: a phase III, randomized, double-blind, placebo-controlled study to evaluate the safety and efficacy of omalizumab in patients with chronic idiopathic/spontaneous urticaria (CIU/CSU) receiving concomitant H1 antihistamines, H2 antihistamines, and/or leukotriene receptor antagonist (LTRA) treatment. Poster presented at: the 32nd Anniversary Fall Clinical Dermatology Conference; October 17–20, 2013; Las Vegas, NV.

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      Finlay AY, Kaplan AP, Beck LA, et al. Omalizumab substantially improves dermatology-related quality of life in patients with chronic spontaneous urticaria. J Eur Acad Dermatol Venereol. 2017;31(10):1715​-1721.

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      Casale TB, Murphy TR, Holden M, et al. Impact of omalizumab on patient-reported outcomes in chronic idiopathic urticaria: results from XTEND-CIU, a 48-week, randomized, placebo-controlled study. Poster presented at: the American Academy of Allergy, Asthma & Immunology (AAAAI)/World Allergy Organization (WAO) Joint Congress; March 2–5, 2018; Orlando, FL.

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      Wood RA, Togias A, Sicherer SH, et al. Omalizumab for the treatment of multiple food allergies. N Engl J Med. 2024;390(10):889​-899.

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      Warren CM, Aktas ON, Manalo LJ, Bartell TR, Gupta RS. The epidemiology of multifood allergy in the United States: a population-based study. Ann Allergy Asthma Immunol. 2023;130(5):637​-648.e5.

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      Gupta RS, Warren CM, Smith BM, et al. The public health impact of parent-reported childhood food allergies in the United States. Pediatrics. 2018;142(6):e20181235.

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      Sampson HA, Aceves S, Bock SA, et al. Food allergy: a practice parameter update–2014. J Allergy Clin Immunol. 2014;134(5): 1016-​1025.e43.

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      Oettgen HC. Mast cells in food allergy: inducing immediate reactions and shaping long-term immunity. J Allergy Clin Immunol. 2023;151(1):21-25.

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      Mahdavinia M, Fox SR, Smith BM, et al. Racial differences in food allergy phenotype and health care utilization among US children. J Allergy Clin Immunol Pract. 2017;5(2):352​-357.e1.

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      Sicherer SH, Sampson HA. Food allergy: a review and update on epidemiology, pathogenesis, diagnosis, prevention, and management. J Allergy Clin Immunol. 2018;141(1):41-58.

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      Ruiter B, Shreffler WG. The role of dendritic cells in food allergy. J Allergy Clin Immunol. 2012;129(4):921​-928.

    • Gupta S, Warren C, Seetasith A, Schuldt R, Gupta R, Casale TB. Mental health concerns of patients and their caregivers in the food allergy research & education (FARE) patient registry add to the burden of food allergy. Poster presented at: American Academy of Allergy, Asthma & Immunology (AAAAI) 2023 Annual Scientific Meeting; February 24-27, 2023; San Antonio, TX.

      Gupta S, Warren C, Seetasith A, Schuldt R, Gupta R, Casale TB. Mental health concerns of patients and their caregivers in the food allergy research & education (FARE) patient registry add to the burden of food allergy. Poster presented at: American Academy of Allergy, Asthma & Immunology (AAAAI) 2023 Annual Scientific Meeting; February 24-27, 2023; San Antonio, TX.

    • Vandenplas Y. Prevention and management of cow’s milk allergy in non-exclusively breastfed infants. Nutrients. 2017;9(7):731.

      Vandenplas Y. Prevention and management of cow’s milk allergy in non-exclusively breastfed infants. Nutrients. 2017;9(7):731.

    • Don’t let hidden holiday allergies ruin your good cheer. American College of Allergy, Asthma & Immunology. Published April 11, 2019. Accessed February 12, 2024. https://acaai.org/news/dont-let-hidden-holiday-allergies-ruin-your-good-cheer/

      Don’t let hidden holiday allergies ruin your good cheer. American College of Allergy, Asthma & Immunology. Published April 11, 2019. Accessed February 12, 2024. https://acaai.org/news/dont-let-hidden-holiday-allergies-ruin-your-good-cheer/

    • Hill DJ, Heine RG, Hosking CS. The diagnostic value of skin prick testing in children with food allergy. Pediatr Allergy Immunol. 2004;15(5):435​-441.

      Hill DJ, Heine RG, Hosking CS. The diagnostic value of skin prick testing in children with food allergy. Pediatr Allergy Immunol. 2004;15(5):435​-441.

    • Fierstein JL, Brown D, Gupta R, Bilaver L. Understanding food-related allergic reactions through a US national patient registry. J Allergy Clin Immunol Pract. 2021;9(1):206​-215.e1.

      Fierstein JL, Brown D, Gupta R, Bilaver L. Understanding food-related allergic reactions through a US national patient registry. J Allergy Clin Immunol Pract. 2021;9(1):206​-215.e1.

    • Permaul P, Stutius LM, Sheehan WJ, et al. Sesame allergy: role of specific IgE and skin-prick testing in predicting food challenge results. Allergy Asthma Proc. 2009;30(6):643​-648.

      Permaul P, Stutius LM, Sheehan WJ, et al. Sesame allergy: role of specific IgE and skin-prick testing in predicting food challenge results. Allergy Asthma Proc. 2009;30(6):643​-648.

    • Soy. American College of Allergy, Asthma & Immunology. Updated April 9, 2019. Accessed July 22, 2024. https://acaai.org/allergies/allergic-conditions/food/soy/

      Soy. American College of Allergy, Asthma & Immunology. Updated April 9, 2019. Accessed July 22, 2024. https://acaai.org/allergies/allergic-conditions/food/soy/

    • Sokol K, Rasooly M, Dempsey C, et al. Prevalence and diagnosis of sesame allergy in children with IgE-mediated food allergy. Pediatr Allergy Immunol. 2020;31(2):214​-218.

      Sokol K, Rasooly M, Dempsey C, et al. Prevalence and diagnosis of sesame allergy in children with IgE-mediated food allergy. Pediatr Allergy Immunol. 2020;31(2):214​-218.

    • Verstege A, Mehl A, Rolinck-Werninghaus C, et al. The predictive value of the skin prick test weal size for the outcome of oral food challenges. Clin Exp Allergy. 2005;35(9):1220​-1226.

      Verstege A, Mehl A, Rolinck-Werninghaus C, et al. The predictive value of the skin prick test weal size for the outcome of oral food challenges. Clin Exp Allergy. 2005;35(9):1220​-1226.

    • Giannetti A, Ruggi A, Ricci G, Giannì G, Caffarelli C. Natural history of hazelnut allergy and current approach to its diagnosis and treatment. Children (Basel). 2023;10(3):585.

      Giannetti A, Ruggi A, Ricci G, Giannì G, Caffarelli C. Natural history of hazelnut allergy and current approach to its diagnosis and treatment. Children (Basel). 2023;10(3):585.

    • Cortot CF, Sheehan WJ, Permaul P, et al. Role of specific IgE and skin-prick testing in predicting food challenge results to baked egg. Allergy Asthma Proc. 2012;33(3):275​-281.

      Cortot CF, Sheehan WJ, Permaul P, et al. Role of specific IgE and skin-prick testing in predicting food challenge results to baked egg. Allergy Asthma Proc. 2012;33(3):275​-281.

    • Koplin JJ, Perrett KP, Sampson HA. Diagnosing peanut allergy with fewer oral food challenges. J Allergy Clin Immunol Pract. 2019;7(2):375​-380.

      Koplin JJ, Perrett KP, Sampson HA. Diagnosing peanut allergy with fewer oral food challenges. J Allergy Clin Immunol Pract. 2019;7(2):375​-380.

    • Feng C, Kim JH. Beyond avoidance: the psychosocial impact of food allergies. Clin Rev Allergy Immunol. 2019;57(1):74-82.

      Feng C, Kim JH. Beyond avoidance: the psychosocial impact of food allergies. Clin Rev Allergy Immunol. 2019;57(1):74-82.

    • Chokshi NY, Maskatia Z, Miller S, Guffey D, Minard CG, Davis CM. Risk factors in pediatric shrimp allergy. Allergy Asthma Proc. 2015;36(4):65-71.

      Chokshi NY, Maskatia Z, Miller S, Guffey D, Minard CG, Davis CM. Risk factors in pediatric shrimp allergy. Allergy Asthma Proc. 2015;36(4):65-71.

    • Saleh-Langenberg J, Flokstra-de Blok BM, Goossens NJ, Kemna JC, van der Velde JL, Dubois AE. The compliance and burden of treatment with the epinephrine auto-injector in food-allergic adolescents. Pediatr Allergy Immunol. 2016;27(1):28-34.

      Saleh-Langenberg J, Flokstra-de Blok BM, Goossens NJ, Kemna JC, van der Velde JL, Dubois AE. The compliance and burden of treatment with the epinephrine auto-injector in food-allergic adolescents. Pediatr Allergy Immunol. 2016;27(1):28-34.

    • Portnoy JM. Appropriate allergy testing and interpretation. Mo Med. 2011;108(5):339​-343.

      Portnoy JM. Appropriate allergy testing and interpretation. Mo Med. 2011;108(5):339​-343.

    • Sicherer SH, Warren CM, Dant C, Gupta RS, Nadeau KC. Food allergy from infancy through adulthood. J Allergy Clin Immunol Pract. 2020;8(6):1854​-1864.

      Sicherer SH, Warren CM, Dant C, Gupta RS, Nadeau KC. Food allergy from infancy through adulthood. J Allergy Clin Immunol Pract. 2020;8(6):1854​-1864.

    • Li PH, Rutkowski K, Kennard L, et al. Challenge-confirmed peanut allergy in older patients: performance of skin tests, specific immunoglobulin E, and ara h 2. Ann Allergy Asthma Immunol. 2018;120(3):334​-335.

      Li PH, Rutkowski K, Kennard L, et al. Challenge-confirmed peanut allergy in older patients: performance of skin tests, specific immunoglobulin E, and ara h 2. Ann Allergy Asthma Immunol. 2018;120(3):334​-335.

    • Groetch M, Mudd K, Woch M, et al. Retail food equivalents for post-oral immunotherapy dosing in the Omalizumab as Monotherapy and as Adjunct Therapy to Multi-Allergen Oral Immunotherapy in Food-Allergic Children and Adults (OUtMATCH) clinical trial. J Allergy Immunol Pract. 2023;11(2):572​-580.e2.

      Groetch M, Mudd K, Woch M, et al. Retail food equivalents for post-oral immunotherapy dosing in the Omalizumab as Monotherapy and as Adjunct Therapy to Multi-Allergen Oral Immunotherapy in Food-Allergic Children and Adults (OUtMATCH) clinical trial. J Allergy Immunol Pract. 2023;11(2):572​-580.e2.

    IMPORTANT SAFETY INFORMATION

    INDICATION

    XOLAIR® (omalizumab) is indicated for:

    • Add-on maintenance treatment of chronic rhinosinusitis with nasal polyps (CRSwNP) in adult patients 18 years of age and older with inadequate response to nasal corticosteroids.

    WARNING: Anaphylaxis

    Anaphylaxis presenting as bronchospasm, hypotension, syncope, urticaria, and/or angioedema of the throat or tongue, has been reported to occur after administration of XOLAIR. Anaphylaxis has occurred as early as after the first dose of XOLAIR, but also has occurred beyond 1 year after beginning regularly administered treatment. Because of the risk of anaphylaxis, initiate XOLAIR therapy in a healthcare setting and closely observe patients for an appropriate period of time after XOLAIR administration. Health care providers administering XOLAIR should be prepared to manage anaphylaxis which can be life-threatening. Inform patients of the signs and symptoms of anaphylaxis and instruct them to seek immediate medical care should symptoms occur. Selection of patients for self-administration of XOLAIR should be based on criteria to mitigate risk from anaphylaxis.


    CONTRAINDICATIONS

    XOLAIR is contraindicated in patients with a severe hypersensitivity reaction to XOLAIR or to any ingredient of XOLAIR.

    WARNINGS AND PRECAUTIONS

    Anaphylaxis: Anaphylaxis has been reported to occur after administration of XOLAIR in premarketing clinical trials and in postmarketing spontaneous reports. In premarketing clinical trials in patients with asthma, anaphylaxis was reported in 3 of 3507 (0.1%) patients. Anaphylaxis occurred with the first dose of XOLAIR in two patients and with the fourth dose in one patient. The time to onset of anaphylaxis was 90 minutes after administration in two patients and 2 hours after administration in one patient.

    A case-control study in asthma patients showed that, among XOLAIR users, patients with a history of anaphylaxis to foods, medications, or other causes were at increased risk of anaphylaxis associated with XOLAIR, compared to those with no prior history of anaphylaxis.

    In postmarketing spontaneous reports, the frequency of anaphylaxis attributed to XOLAIR use was estimated to be at least 0.2% of patients based on an estimated exposure of about 57,300 patients from June 2003 through December 2006. Approximately 60% to 70% of anaphylaxis cases have been reported to occur within the first three doses of XOLAIR, with additional cases occurring sporadically beyond the third dose.

    Initiate XOLAIR only in a healthcare setting equipped to manage anaphylaxis which can be life-threatening. Observe patients closely for an appropriate period of time after administration of XOLAIR, taking into account the time to onset of anaphylaxis seen in premarketing clinical trials and postmarketing spontaneous reports. Inform patients of the signs and symptoms of anaphylaxis, and instruct them to seek immediate medical care should signs or symptoms occur.

    Once XOLAIR therapy has been established, administration of XOLAIR prefilled syringe or autoinjector outside of a healthcare setting by a patient or a caregiver may be appropriate for selected patients. Patient selection, determined by the healthcare provider in consultation with the patient, should take into account the pattern of anaphylaxis events seen in premarketing clinical trials and postmarketing spontaneous reports, as well as individual patient risk factors (e.g. prior history of anaphylaxis), ability to recognize signs and symptoms of anaphylaxis, and ability to perform subcutaneous injections with XOLAIR prefilled syringe or autoinjector with proper technique according to the prescribed dosing regimen and Instructions for Use.

    Discontinue XOLAIR in patients who experience a severe hypersensitivity reaction.

    Malignancy: Malignant neoplasms were observed in 20 of 4127 (0.5%) XOLAIR-treated patients compared with 5 of 2236 (0.2%) control patients in clinical studies of adults and adolescents (≥12 years of age) with asthma and other allergic disorders. The observed malignancies in XOLAIR-treated patients were a variety of types, with breast, non-melanoma skin, prostate, melanoma, and parotid occurring more than once, and five other types occurring once each. The majority of patients were observed for less than 1 year. The impact of longer exposure to XOLAIR or use in patients at higher risk for malignancy (e.g., elderly, current smokers) is not known.

    A subsequent 5-year observational study of 5007 XOLAIR-treated and 2829 non-XOLAIR-treated adolescent and adult patients with moderate to severe persistent asthma and a positive skin test reaction or in vitro reactivity to a perennial aeroallergen found that the incidence rates of primary malignancies (per 1000 patient years) were similar in both groups (12.3 vs 13.0, respectively). Study limitations which include the observational study design, the bias introduced by allowing enrollment of patients previously exposed to XOLAIR (88%), enrollment of patients (56%) while a history of cancer or a premalignant condition were study exclusion criteria, and the high study discontinuation rate (44%) preclude definitively ruling out a malignancy risk with XOLAIR.

    Acute Asthma Symptoms and Deteriorating Disease: XOLAIR has not been shown to alleviate asthma exacerbations acutely. Do not use XOLAIR to treat acute bronchospasm or status asthmaticus. Patients should seek medical advice if their asthma remains uncontrolled or worsens after initiation of treatment with XOLAIR.

    Corticosteroid Reduction: Do not discontinue systemic or inhaled corticosteroids abruptly upon initiation of XOLAIR therapy for asthma or CRSwNP. Decrease corticosteroids gradually under the direct supervision of a physician.

    Eosinophilic Conditions: In rare cases, patients with asthma on therapy with XOLAIR may present with serious systemic eosinophilia, sometimes presenting with clinical features of vasculitis consistent with Churg-Strauss syndrome. These events usually, but not always, have been associated with the reduction of oral corticosteroid therapy. Physicians should be alert to eosinophilia, vasculitic rash, worsening pulmonary symptoms, cardiac complications, and/or neuropathy presenting in their patients. A causal association between XOLAIR and these underlying conditions has not been established.

    Fever, Arthralgia, and Rash: In post-approval use, some patients have experienced a constellation of signs and symptoms, including arthritis/arthralgia, rash, fever, and lymphadenopathy with an onset 1 to 5 days after the first or subsequent injections of XOLAIR. These signs and symptoms have recurred after additional doses in some patients. Physicians should stop XOLAIR if a patient develops this constellation of signs and symptoms.

    Parasitic (Helminth) Infection: Monitor patients at high risk of geohelminth infection while on XOLAIR therapy. Insufficient data are available to determine the length of monitoring required for geohelminth infections after stopping XOLAIR treatment.

    Laboratory Tests: Due to formation of XOLAIR:IgE complexes, serum total IgE levels increase following administration of XOLAIR and may remain elevated for up to 1 year following discontinuation of XOLAIR. Do not use serum total IgE levels obtained less than 1 year following discontinuation to reassess the dosing regimen for asthma or CRSwNP patients, because these levels may not reflect steady state free IgE levels.

    Potential Medication Error Related to Emergency Treatment of Anaphylaxis
    XOLAIR should not be used for the emergency treatment of allergic reactions, including anaphylaxis. In studies to simulate use, some patients and caregivers did not understand that XOLAIR is not intended for the emergency treatment of allergic reactions, including anaphylaxis. The safety and effectiveness of XOLAIR for emergency treatment of allergic reactions, including anaphylaxis, have not been established. Instruct patients that XOLAIR is for maintenance use to reduce allergic reactions, including anaphylaxis, while avoiding food allergens.

    ADVERSE REACTIONS

    Chronic Rhinosinusitis with Nasal Polyps: The most common adverse reactions (≥3% in XOLAIR-treated patients) included: headache (8.1%), injection site reaction (5.2%), arthralgia (3.0%), upper abdominal pain (3.0%), and dizziness (3.0%).

    Injection Site Reactions: Injection site reactions occurred at a rate of 5.2% in XOLAIR-treated patients compared with 1.5% in placebo-treated patients. Injection site reactions were mild to moderate severity and none resulted in study discontinuation.

    Injection Site Reactions in Healthy Adults: In an open label trial in healthy adults, in which the 300 mg/2 mL autoinjector was compared to the 300 mg/2 mL prefilled syringe, injection site reactions (e.g., induration, pain, erythema, hemorrhage, swelling, discomfort, bruising, hypoesthesia, edema, pruritus) were observed in 24% (16/66) of subjects treated with the autoinjector compared with 14% (9/64) of subjects treated with the prefilled syringe.

    Cardiovascular and Cerebrovascular Events from Clinical Studies in Patients with Asthma: A 5-year observational study was conducted in 5007 XOLAIR-treated and 2829 non-XOLAIR-treated patients ≥12 years of age for a different indication to evaluate the long term safety of XOLAIR, including the risk of malignancy. The results suggest a potential increased risk of serious cardiovascular and cerebrovascular events in patients treated with XOLAIR, however the observational study design, the inclusion of patients previously exposed to XOLAIR (88% for a mean of 8 months), baseline imbalances in cardiovascular risk factors between the treatment groups, an inability to adjust for unmeasured risk factors, and the high study discontinuation rate (44%) limit the ability to quantify the magnitude of the risk.

    Pregnancy: Data with XOLAIR use in pregnant women are insufficient to inform on drug associated risk.

    You may report side effects to the FDA at (800) FDA-1088 or www.fda.gov/medwatch. You may also report side effects to Genentech at (888) 835-2555 or Novartis Pharmaceuticals Corporation at (888) 669-6682.

    Please see full Prescribing Information, including Boxed WARNING and Medication Guide, for additional Important Safety Information.

    WARNING: Anaphylaxis

    Anaphylaxis presenting as bronchospasm, hypotension, syncope, urticaria, and/or angioedema of the throat or tongue, has been reported to occur after administration of XOLAIR. Anaphylaxis has occurred as early as after the first dose of XOLAIR, but also has occurred beyond 1 year after beginning regularly administered treatment. Because of the risk of anaphylaxis, initiate XOLAIR therapy in a healthcare setting and closely observe patients for an appropriate period of time after XOLAIR administration. Health care providers administering XOLAIR should be prepared to manage anaphylaxis which can be life-threatening. Inform patients of the signs and symptoms of anaphylaxis and instruct them to seek immediate medical care should symptoms occur. Selection of patients for self-administration of XOLAIR should be based on criteria to mitigate risk from anaphylaxis.

    INDICATION

    XOLAIR® (omalizumab) is indicated for:

    • Add-on maintenance treatment of chronic rhinosinusitis with nasal polyps (CRSwNP) in adult patients 18 years of age and older with inadequate response to nasal corticosteroids.


    CONTRAINDICATIONS

    XOLAIR is contraindicated in patients with a severe hypersensitivity reaction to XOLAIR or to any ingredient of XOLAIR.

    WARNINGS AND PRECAUTIONS

    Anaphylaxis: Anaphylaxis has been reported to occur after administration of XOLAIR in premarketing clinical trials and in postmarketing spontaneous reports. In premarketing clinical trials in patients with asthma, anaphylaxis was reported in 3 of 3507 (0.1%) patients. Anaphylaxis occurred with the first dose of XOLAIR in two patients and with the fourth dose in one patient. The time to onset of anaphylaxis was 90 minutes after administration in two patients and 2 hours after administration in one patient.

    A case-control study in asthma patients showed that, among XOLAIR users, patients with a history of anaphylaxis to foods, medications, or other causes were at increased risk of anaphylaxis associated with XOLAIR, compared to those with no prior history of anaphylaxis.

    In postmarketing spontaneous reports, the frequency of anaphylaxis attributed to XOLAIR use was estimated to be at least 0.2% of patients based on an estimated exposure of about 57,300 patients from June 2003 through December 2006. Approximately 60% to 70% of anaphylaxis cases have been reported to occur within the first three doses of XOLAIR, with additional cases occurring sporadically beyond the third dose.

    Initiate XOLAIR only in a healthcare setting equipped to manage anaphylaxis which can be life-threatening. Observe patients closely for an appropriate period of time after administration of XOLAIR, taking into account the time to onset of anaphylaxis seen in premarketing clinical trials and postmarketing spontaneous reports. Inform patients of the signs and symptoms of anaphylaxis, and instruct them to seek immediate medical care should signs or symptoms occur.

    Once XOLAIR therapy has been established, administration of XOLAIR prefilled syringe or autoinjector outside of a healthcare setting by a patient or a caregiver may be appropriate for selected patients. Patient selection, determined by the healthcare provider in consultation with the patient, should take into account the pattern of anaphylaxis events seen in premarketing clinical trials and postmarketing spontaneous reports, as well as individual patient risk factors (e.g. prior history of anaphylaxis), ability to recognize signs and symptoms of anaphylaxis, and ability to perform subcutaneous injections with XOLAIR prefilled syringe or autoinjector with proper technique according to the prescribed dosing regimen and Instructions for Use.

    Discontinue XOLAIR in patients who experience a severe hypersensitivity reaction.

    Malignancy: Malignant neoplasms were observed in 20 of 4127 (0.5%) XOLAIR-treated patients compared with 5 of 2236 (0.2%) control patients in clinical studies of adults and adolescents (≥12 years of age) with asthma and other allergic disorders. The observed malignancies in XOLAIR-treated patients were a variety of types, with breast, non-melanoma skin, prostate, melanoma, and parotid occurring more than once, and five other types occurring once each. The majority of patients were observed for less than 1 year. The impact of longer exposure to XOLAIR or use in patients at higher risk for malignancy (e.g., elderly, current smokers) is not known.

    A subsequent 5-year observational study of 5007 XOLAIR-treated and 2829 non-XOLAIR-treated adolescent and adult patients with moderate to severe persistent asthma and a positive skin test reaction or in vitro reactivity to a perennial aeroallergen found that the incidence rates of primary malignancies (per 1000 patient years) were similar in both groups (12.3 vs 13.0, respectively). Study limitations which include the observational study design, the bias introduced by allowing enrollment of patients previously exposed to XOLAIR (88%), enrollment of patients (56%) while a history of cancer or a premalignant condition were study exclusion criteria, and the high study discontinuation rate (44%) preclude definitively ruling out a malignancy risk with XOLAIR.

    Acute Asthma Symptoms and Deteriorating Disease: XOLAIR has not been shown to alleviate asthma exacerbations acutely. Do not use XOLAIR to treat acute bronchospasm or status asthmaticus. Patients should seek medical advice if their asthma remains uncontrolled or worsens after initiation of treatment with XOLAIR.

    Corticosteroid Reduction: Do not discontinue systemic or inhaled corticosteroids abruptly upon initiation of XOLAIR therapy for asthma or CRSwNP. Decrease corticosteroids gradually under the direct supervision of a physician.

    Eosinophilic Conditions: In rare cases, patients with asthma on therapy with XOLAIR may present with serious systemic eosinophilia, sometimes presenting with clinical features of vasculitis consistent with Churg-Strauss syndrome. These events usually, but not always, have been associated with the reduction of oral corticosteroid therapy. Physicians should be alert to eosinophilia, vasculitic rash, worsening pulmonary symptoms, cardiac complications, and/or neuropathy presenting in their patients. A causal association between XOLAIR and these underlying conditions has not been established.

    Fever, Arthralgia, and Rash: In post-approval use, some patients have experienced a constellation of signs and symptoms, including arthritis/arthralgia, rash, fever, and lymphadenopathy with an onset 1 to 5 days after the first or subsequent injections of XOLAIR. These signs and symptoms have recurred after additional doses in some patients. Physicians should stop XOLAIR if a patient develops this constellation of signs and symptoms.

    Parasitic (Helminth) Infection: Monitor patients at high risk of geohelminth infection while on XOLAIR therapy. Insufficient data are available to determine the length of monitoring required for geohelminth infections after stopping XOLAIR treatment.

    Laboratory Tests: Due to formation of XOLAIR:IgE complexes, serum total IgE levels increase following administration of XOLAIR and may remain elevated for up to 1 year following discontinuation of XOLAIR. Do not use serum total IgE levels obtained less than 1 year following discontinuation to reassess the dosing regimen for asthma or CRSwNP patients, because these levels may not reflect steady state free IgE levels.

    Potential Medication Error Related to Emergency Treatment of Anaphylaxis
    XOLAIR should not be used for the emergency treatment of allergic reactions, including anaphylaxis. In studies to simulate use, some patients and caregivers did not understand that XOLAIR is not intended for the emergency treatment of allergic reactions, including anaphylaxis. The safety and effectiveness of XOLAIR for emergency treatment of allergic reactions, including anaphylaxis, have not been established. Instruct patients that XOLAIR is for maintenance use to reduce allergic reactions, including anaphylaxis, while avoiding food allergens.

    ADVERSE REACTIONS

    Chronic Rhinosinusitis with Nasal Polyps: The most common adverse reactions (≥3% in XOLAIR-treated patients) included: headache (8.1%), injection site reaction (5.2%), arthralgia (3.0%), upper abdominal pain (3.0%), and dizziness (3.0%).

    Injection Site Reactions: Injection site reactions occurred at a rate of 5.2% in XOLAIR-treated patients compared with 1.5% in placebo-treated patients. Injection site reactions were mild to moderate severity and none resulted in study discontinuation.

    Injection Site Reactions in Healthy Adults: In an open label trial in healthy adults, in which the 300 mg/2 mL autoinjector was compared to the 300 mg/2 mL prefilled syringe, injection site reactions (e.g., induration, pain, erythema, hemorrhage, swelling, discomfort, bruising, hypoesthesia, edema, pruritus) were observed in 24% (16/66) of subjects treated with the autoinjector compared with 14% (9/64) of subjects treated with the prefilled syringe.

    Cardiovascular and Cerebrovascular Events from Clinical Studies in Patients with Asthma: A 5-year observational study was conducted in 5007 XOLAIR-treated and 2829 non-XOLAIR-treated patients ≥12 years of age for a different indication to evaluate the long term safety of XOLAIR, including the risk of malignancy. The results suggest a potential increased risk of serious cardiovascular and cerebrovascular events in patients treated with XOLAIR, however the observational study design, the inclusion of patients previously exposed to XOLAIR (88% for a mean of 8 months), baseline imbalances in cardiovascular risk factors between the treatment groups, an inability to adjust for unmeasured risk factors, and the high study discontinuation rate (44%) limit the ability to quantify the magnitude of the risk.

    Pregnancy: Data with XOLAIR use in pregnant women are insufficient to inform on drug associated risk.

    You may report side effects to the FDA at (800) FDA-1088 or www.fda.gov/medwatch. You may also report side effects to Genentech at (888) 835-2555 or Novartis Pharmaceuticals Corporation at (888) 669-6682.

    Please see full Prescribing Information, including Boxed WARNING and Medication Guide, for additional Important Safety Information.