FASENRA is indicated for the add-on maintenance treatment of adult and pediatric patients aged 6 years and older with severe asthma, and with an eosinophilic phenotype. FASENRA is not for the relief of acute bronchospasm or status asthmaticus.

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LUNG FUNCTION DATA

AIM TO IMPROVE LUNG FUNCTION FROM THE FIRST DOSE

Demonstrated exacerbation reduction in pivotal studies.

Lung function improvement sustained through 2 years*†1-7

Graph Representing Lung Function Improvement Sustained Through 2 Years
Graph Representing Lung Function Improvement Sustained Through 2 Years

Results are descriptive only.

Results in patients with bEOS ≥300 cells/µL. The analyses of these endpoints were not multiplicity protected.

FASENRA is not indicated for the relief of acute bronchospasm or status asthmaticus.

Pivotal studies:

At Week 48 in SIROCCO, a significant 398 mL improvement in FEV1 was seen with FASENRA + SOC (n=264) vs 239 mL with placebo + SOC (n=261).

At Week 56 in CALIMA, a significant 330 mL improvement in FEV1 was seen with FASENRA + SOC (n=238) vs 215 mL with placebo + SOC (n=244) (P=0.010).

At Week 4 in SIROCCO, a 290 mL improvement in FEV1 was seen with FASENRA + SOC (n=251) compared to 209 mL with placebo + SOC (n=249).†1-3,5,6

At Week 4 in CALIMA, a 280 mL improvement in FEV1 was seen with FASENRA + SOC (n=232) compared to 152 mL with placebo + SOC (n=236).†1-3,5,6

Patients originally randomized to FASENRA continued FASENRA 30 mg SC Q8W or benralizumab SC Q4W. Patients previously receiving placebo were re-randomized 1:1 to FASENRA 30 mg SC Q4W for the first 3 doses, then Q8W thereafter or benralizumab 30 mg SC Q4W except for adolescent patients in the EU who were randomized to FASENRA 30 mg SC Q8W. Patients were to be maintained on their same dose of ICS/LABA. End of treatment was at Week 56 for adults and Week 108 for adolescents. The primary objective was assessment of safety and tolerability. Secondary objectives included assessments of asthma exacerbations, prebronchodilator FEV1, and impact of treatment on blood eosinophil counts.

Flow Chart Representing the BORA Phase 3 Safety Extension TrialFlow Chart Representing the BORA Phase 3 Safety Extension Trial

Inclusion Criteria

  • All patients who completed treatment in the SIROCCO, CALIMA, or ZONDA trials were eligible for enrollment
  • Patients 12 to 75 years of age who were diagnosed with asthma and treated with medium-dosage or high-dosage inhaled ICS/LABA for ≥12 months prior to enrollment

*Patients in this study also received FASENRA Q4W, either continuing from the previous double-blind trial (n=518) or were randomized after originally receiving placebo (n=265).

†Patients randomized were stratified for blood eosinophil count of ≥300 cells/µL and <300 cells/µL.

EOT, end of treatment; FEV1, forced expiratory volume in 1 second; ICS, inhaled corticosteroid; LABA, long-acting beta-agonist; Q4W, every 4 weeks; Q8W, every 8 weeks; SC, subcutaneous.

Pre-bronchodilator FEV1 and AAER data by persistent airflow obstruction status

Post Hoc Pooled SIROCCO/CALIMA: Pre-bronchodilator FEV1 by Persistent Airflow Obstruction Status

Patients receiving high-dose ICS/LABA with baseline bEOS ≥300 cells/µL§8

Chart Representing Pre-Bronchodilator FEV1 Data by Persistent Airflow Obstruction StatusChart Representing Pre-Bronchodilator FEV1 Data by Persistent Airflow Obstruction Status

Persistent airflow obstruction in asthma can occur due to airway remodeling driven by continual inflammation. While there is no standard definition, a post-bronchodilator FEV1/FVC ratio of <70% is the most common definition of persistent airflow obstruction.9,10

Results are descriptive only.

Persistent airflow obstruction may be used as an alternative term for fixed airflow obstruction.

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*Statistical significance for FEV1 improvement was established at end of treatment. Week 4 results were descriptive only. FASENRA demonstrated greater improvements in change from baseline in pre-bronchodilator FEV1 compared with placebo at Week 4 (first measured time point after administration of treatment dose), which were maintained through EOT.2,3

†Pooled analysis of adult (treated with high-dose ICS/LABA) and adolescent (treated with medium- to high-dose ICS/
LABA) patients with severe asthma and baseline blood eosinophil count ≥300 cells/μL in SIROCCO and CALIMA randomized to treatment with FASENRA 30 mg SC Q8W. BORA Week 56 results are adults only.4,5

‡EOT pooled results from Week 48 for SIROCCO and Week 56 for CALIMA.5

§Based on a pooled post hoc analysis from the ITT population from SIROCCO and CALIMA in patients with severe eosinophilic asthma on high-dose ICS/LABA. Persistent airflow obstruction was defined as a ratio (x100) of post-bronchodilator FEV1/FVC <70% and non-persistent airflow obstruction defined as ≥70% at baseline.8

∥Estimates calculated via a negative binomial model, with adjustment for study code, treatment, baseline value, region, OCS use at time of randomization, visit, and visit x treatment.8

AAER, annual asthma exacerbation rate; bEOS, blood eosinophil; CI, confidence interval; EOT, end of treatment; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; ICS, inhaled corticosteroid; ITT, intent-to-treat; LABA, long-acting beta-agonist; Q8W, every 8 weeks; SC, subcutaneous; SOC, standard of care.

IMPORTANT SAFETY INFORMATION -

CONTRAINDICATIONS

Known hypersensitivity to benralizumab or excipients.

WARNINGS AND PRECAUTIONS

Hypersensitivity Reactions

Hypersensitivity reactions (eg, anaphylaxis, angioedema, urticaria, rash) have occurred after administration of FASENRA. These reactions generally occur within hours of administration, but in some instances have a delayed onset (ie, days). Discontinue in the event of a hypersensitivity reaction.

Acute Asthma Symptoms or Deteriorating Disease

FASENRA should not be used to treat acute asthma symptoms, acute exacerbations, or acute bronchospasm.

Reduction of Corticosteroid Dosage

Do not discontinue systemic or inhaled corticosteroids abruptly upon initiation of therapy with FASENRA. Reductions in corticosteroid dose, if appropriate, should be gradual and performed under the direct supervision of a physician. Reduction in corticosteroid dose may be associated with systemic withdrawal symptoms and/or unmask conditions previously suppressed by systemic corticosteroid therapy.

Parasitic (Helminth) Infection

It is unknown if FASENRA will influence a patient’s response against helminth infections. Treat patients with pre-existing helminth infections before initiating therapy with FASENRA. If patients become infected while receiving FASENRA and do not respond to anti-helminth treatment, discontinue FASENRA until infection resolves.

ADVERSE REACTIONS

The most common adverse reactions (incidence ≥ 5%):

  • Asthma: headache, pharyngitis
  • EGPA: headache
  • HES: headache, hypersensitivity reactions, influenza-like illness

Injection site reactions (eg, pain, erythema, pruritus, papule) occurred at a rate of 2.2% in patients treated with FASENRA compared with 1.9% in patients treated with placebo in asthma exacerbation studies.

USE IN SPECIFIC POPULATIONS

A pregnancy exposure registry monitors pregnancy outcomes in women exposed to FASENRA during pregnancy. To enroll call 1-877-311-8972 or visit www.mothertobaby.org/fasenra.

The data on pregnancy exposure from the clinical trials are insufficient to inform on drug-associated risk. Monoclonal antibodies such as benralizumab are transported across the placenta during the third trimester of pregnancy; therefore, potential effects on a fetus are likely to be greater during the third trimester of pregnancy.

INDICATIONS

FASENRA is indicated for:

  • the add-on maintenance treatment of patients with severe asthma aged 6 years and older and with an eosinophilic phenotype. FASENRA is not indicated for the relief of acute bronchospasm or status asthmaticus
  • the treatment of adult patients with eosinophilic granulomatosis with polyangiitis (EGPA)
  • the treatment of adult and adolescent patients aged 12 years and older with hypereosinophilic syndrome (HES) without an identifiable non-hematologic secondary cause

Please read full Prescribing Information, including Patient Information.

Please read full Prescribing Information, including Patient Information.

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IMPORTANT SAFETY INFORMATION

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References

Reference

1. Data on File, US-107034, AZPLP. 2. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; 2026. 3. Bleecker ER, FitzGerald JM, Chanez P, et al; SIROCCO study investigators. Efficacy and safety of benralizumab for patients with severe asthma uncontrolled with high-dosage inhaled corticosteroids and long-acting β2-agonists (SIROCCO): a randomised, multicentre, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2115-2127. 4. FitzGerald JM, Bleecker ER, Nair P, et al; CALIMA study investigators. Benralizumab, an anti-interleukin-5 receptor α monoclonal antibody, as add-on treatment for patients with severe, uncontrolled, eosinophilic asthma (CALIMA): a randomised, double-blind, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2128-2141.

 

1. Korn S, Bourdin A, Chupp G, et al. Integrated safety and efficacy among patients receiving benralizumab for up to 5 years. J Allergy Clin Immunol Pract. 2021;9(12):4381-4392.e4.

1. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; September 2024. 2. Laviolette M, Gossage DL, Gauvreau G, et al. Effects of benralizumab on airway eosinophils in asthmatic patients with sputum eosinophilia. J Allergy Clin Immunol. 2013;132(5):1086-1096.e5.

1. Data on File, REF-51332, AZPLP. 2. Bleecker ER, FitzGerald JM, Chanez P, et al; SIROCCO study investigators. Efficacy and safety of benralizumab for patients with severe asthma uncontrolled with high-dosage inhaled corticosteroids and long-acting ß2-agonists (SIROCCO): a randomised, multicentre, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2115-2127. 3. Skolnik NS, Carnahan SP. Primary care of asthma: new options for severe eosinophilic asthma. Curr Med Res Opin. 2019;35(7):1309-1318. 4. 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.

1. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; September 2024. 2. Bleecker ER, FitzGerald JM, Chanez P, et al; SIROCCO study investigators. Efficacy and safety of benralizumab for patients with severe asthma uncontrolled with high-dosage inhaled corticosteroids and long-acting ß2-agonists (SIROCCO): a randomised, multicentre, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2115-2127. 3. FitzGerald JM, Bleecker ER, Nair P, et al; CALIMA study investigators. Benralizumab, an anti-interleukin-5 receptor α monoclonal antibody, as add-on treatment for patients with severe, uncontrolled, eosinophilic asthma (CALIMA): a randomised, double-blind, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2128-2141. 4. Chipps BE, Newbold P, Hirsch I, Trudo F, Goldman M. Benralizumab efficacy by atopy status and serum immunoglobulin E for patients with severe, uncontrolled asthma. Ann Allergy Asthma Immunol. 2018;120(5):504-511.e4.

1. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; September 2024. 2. Nair P, Wenzel S, Rabe KF, et al. Oral glucocorticoid–sparing effect of benralizumab in severe asthma. N Engl J Med. 2017;376(25):2448-2458. 3. Menzies-Gow A, Corren J, Bel EH, et al. Corticosteroid tapering with benralizumab treatment for eosinophilic asthma: PONENTE trial. ERJ Open Res. 2019;5(3):00009-2019. 4. Menzies-Gow A, Gurnell M, Heaney LG, et al. Oral corticosteroid elimination via a personalised reduction algorithm in adults with severe, eosinophilic asthma treated with benralizumab (PONENTE): a multicentre, open-label, single-arm study. Lancet Respir Med. 2022;10(1):47-58. 5. Menzies-Gow A, Gurnell M, Heaney LG, et al. Adrenal function recovery after durable oral corticosteroid sparing with benralizumab in the PONENTE study. Eur Respir J. 2022;60(6):2103226.

1. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; September 2024. 2. Bleecker ER, FitzGerald JM, Chanez P, et al; SIROCCO study investigators. Efficacy and safety of benralizumab for patients with severe asthma uncontrolled with high-dosage inhaled corticosteroids and long-acting ß2-agonists (SIROCCO): a randomised, multicentre, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2115-2127. 3. FitzGerald JM, Bleecker ER, Nair P, et al; CALIMA study investigators. Benralizumab, an anti-interleukin-5 receptor α monoclonal antibody, as add-on treatment for patients with severe, uncontrolled, eosinophilic asthma (CALIMA): a randomised, double-blind, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2128-2141. 4. Busse WW, Bleecker ER, FitzGerald JM, et al; BORA study investigators. Long-term safety and efficacy of benralizumab in patients with severe, uncontrolled asthma: 1-year results from the BORA phase 3 extension trial. Lancet Respir Med. 2019;7(1):46-59. 5. FitzGerald JM, Bleecker ER, Bourdin A, et al. Two-year integrated efficacy and safety analysis of benralizumab in severe asthma. J Asthma Allergy. 2019;12:401-413. 6. Data on File, REF-19697, AZPLP. 7. Data on File, REF-59636, AZPLP. 8. Chipps BE, Hirsch I, Trudo F, et al. Benralizumab efficacy for patients with fixed airflow obstruction and severe, uncontrolled eosinophilic asthma. Ann Allergy Asthma Immunol. 2020;124(1):79-86. 9. Kaminska M, Foley S, Maghni K, et al. Airway remodeling in subjects with severe asthma with or without chronic persistent airflow obstruction. J Allergy Clin Immunol. 2009;124(1):45-51.e1-4. 10. Rutting S, Thamrin C, Cross TJ, King GG, Tonga KO. Fixed airflow obstruction in asthma: a problem of the whole lung not of just the airways. Front Physiol. 2022;13:898208.

1. Skolnik NS, Carnahan SP. Primary care of asthma: new options for severe eosinophilic asthma. Curr Med Res Opin. 2019;35(7):1309-1318. 2. Global Initiative for Asthma. 2025 GINA Report, Global Strategy for Asthma Management and Prevention. Accessed May 27, 2025. https://ginasthma.org/reports 3. Bleecker ER, FitzGerald JM, Chanez P, et al; SIROCCO study investigators. Efficacy and safety of benralizumab for patients with severe asthma uncontrolled with high-dosage inhaled corticosteroids and long-acting β2-agonists (SIROCCO): a randomised, multicentre, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2115-2127. 4. 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.

1. Data on File, US-94507, AZPLP.

1. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; April2024 .

1. Data on File, REF-211303, AZPLP. 2. Jackson DJ, Pelaia G, Emmanuel B, et al. Benralizumab in severe eosinophilic asthma by previous biologic use and key clinical subgroups: real-world XALOC-1 programme. Eur Respir J. 2024;64(1):2301521. 3. Carstens D, Maselli DJ, Mu F, et al. Real-world effectiveness study of benralizumab for severe eosinophilic asthma: ZEPHYR 2. J Allergy Clin Immunol Pract. 2023;11(7):2150-2161.e4. 4. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; September 2024. 5. Bleecker ER, FitzGerald JM, Chanez P, et al; SIROCCO study investigators. Efficacy and safety of benralizumab for patients with severe asthma uncontrolled with high-dosage inhaled corticosteroids and long-acting ß2-agonists (SIROCCO): a randomised, multicentre, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2115-2127. 6. Penz E, Rothe T, Dupont L, et al. Early and sustained asthma control and remission in real-world patients with severe eosinophilic asthma treated with benralizumab: XALOC-2. Clin Exp Allergy. Published online October 29, 2025. doi:10.1111/cea.70162 7. Penz E, Rothe T, Dupont L, et al. Early and sustained asthma control and remission in real-world patients with severe eosinophilic asthma treated with benralizumab: XALOC-2. Supplemental materials. Clin Exp Allergy. Published online October 29, 2025. doi:10.1111/cea.70162

1. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; September 2024. 2. Bleecker ER, FitzGerald JM, Chanez P, et al; SIROCCO study investigators. Efficacy and safety of benralizumab for patients with severe asthma uncontrolled with high-dosage inhaled corticosteroids and long-acting ß2-agonists (SIROCCO): a randomised, multicentre, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2115-2127. 3. FitzGerald JM, Bleecker ER, Nair P, et al; CALIMA study investigators. Benralizumab, an anti-interleukin-5 receptor α monoclonal antibody, as add-on treatment for patients with severe, uncontrolled, eosinophilic asthma (CALIMA): a randomised, double-blind, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2128-2141. 4. Nair P, Wenzel S, Rabe KF, et al. Oral glucocorticoid–sparing effect of benralizumab in severe asthma. N Engl J Med. 2017;376(25):2448-2458. 5. Busse WW, Bleecker ER, FitzGerald JM, et al; BORA study investigators. Long-term safety and efficacy of benralizumab in patients with severe, uncontrolled asthma: 1-year results from the BORA phase 3 extension trial. Lancet Respir Med. 2019;7(1):46 -59. 6. Korn S, Bourdin A, Chupp G, et al. Integrated safety and efficacy among patients receiving benralizumab for up to 5 years. J Allergy Clin Immunol Pract. 2021;9(12):4381-4392.e4. 7. Menzies-Gow A, Gurnell M, Heaney LG, et al. Oral corticosteroid elimination via a personalised reduction algorithm in adults with severe, eosinophilic asthma treated with benralizumab (PONENTE): a multicentre, open-label, single-arm study. Lancet Respir Med. 2022;10(1):47-58. 8. Menzies-Gow A, Corren J, Bel EH, et al. Corticosteroid tapering with benralizumab treatment for eosinophilic asthma: PONENTE trial. ERJ Open Res. 2019;5(3):00009-2019. 9. Menzies-Gow A, Gurnell M, Heaney LG, et al. Adrenal function recovery after durable oral corticosteroid sparing with benralizumab in the PONENTE study. Eur Respir J. 2022;60(6):2103226. 10. Data on File, REF -211303, AZPLP. 11. Jackson DJ, Pelaia G, Emmanuel B, et al. Benralizumab in severe eosinophilic asthma by previous biologic use and key clinical subgroups: real-world XALOC-1 programme. Eur Respir J. 2024;64(1):2301521. 12. Carstens D, Maselli DJ, Mu F, et al. Real-world effectiveness study of benralizumab for severe eosinophilic asthma: ZEPHYR 2. J Allergy Clin Immunol Pract. 2023;11(7):2150-2161.e4. 13. Penz E, Rothe T, Dupont L, et al. Early and sustained asthma control and remission in real-world patients with severe eosinophilic asthma treated with benralizumab: XALOC-2. Clin Exp Allergy. Published online October 29, 2025. doi:10.1111/cea.70162 14. Penz E, Rothe T, Dupont L, et al. Early and sustained asthma control and remission in real-world patients with severe eosinophilic asthma treated with benralizumab: XALOC-2. Supplemental materials. Clin Exp Allergy. Published online October 29, 2025. doi:10.1111/cea.70162

1. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; September 2024. 2. Korn S, Bourdin A, Chupp G, et al. Integrated safety and efficacy among patients receiving benralizumab for up to 5 years. J Allergy Clin Immunol Pract. 2021;9(12):4381-4392.e4. 3. Data on File, US-103275, AZPLP. 4. ClinicalTrials.gov [Internet]. National Library of Medicine (US). Identifier NCT00783289 ClinicalTrials.gov website. Accessed July 10, 2025. https://clinicaltrials.gov/ct2/show/NCT00783289

1. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; September 2024. 2. Ferguson GT, Cole J, Aurivillius M, Roussel P, Barker P, Martin UJ; GRECO study investigators. Single-use autoinjector functionality and reliability for at-home administration of benralizumab for patients with severe asthma: GRECO trial results. J Asthma Allergy. 2019;12:363-373.

1. FASENRA® (benralizumab) [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals LP; April 2024. 2. Bleecker ER, FitzGerald JM, Chanez P, et al; SIROCCO study investigators. Efficacy and safety of benralizumab for patients with severe asthma uncontrolled with high-dosage inhaled corticosteroids and long-acting ß2-agonists (SIROCCO): a randomised, multicentre, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2115-2127. 3. FitzGerald JM, Bleecker ER, Nair P, et al; CALIMA study investigators. Benralizumab, an anti-interleukin-5 receptor α monoclonal antibody, as add-on treatment for patients with severe, uncontrolled, eosinophilic asthma (CALIMA): a randomised, double-blind, placebo-controlled phase 3 trial. Lancet. 2016;388(10056):2128-2141.

1. Formulary data are provided by Fingertip Formulary® and are current as of October 6, 2025.