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TERRANOVA trial did not meet the primary endpoint of a statistically-significant reduction of exacerbations in patients with chronic obstructive pulmonary disease

AstraZeneca and MedImmune, its global biologics research and development arm, today announced top-line results from TERRANOVA, the second of two pivotal Phase III trials for Fasenra (benralizumab) in patients with moderate to very severe chronic obstructive pulmonary disease (COPD). The trial did not meet the primary endpoint of a statistically-significant reduction of exacerbations. This news follows the announcement earlier this month that the first pivotal Phase III trial, GALATHEA, did not meet its primary endpoint.

Dr. Sean Bohen, Executive Vice President, Global Medicines Development and Chief Medical Officer, said: "These results are disappointing because uncontrolled COPD patients already on dual or triple inhaled therapy need new treatment options. We will now analyse the complete data sets from the GALATHEA and TERRANOVA trials to further understand these results."

The pivotal Phase III trials GALATHEA and TERRANOVA were randomised, double-blinded, 56-week placebo-controlled, multicentre trials assessing the safety and efficacy of Fasenra as an add-on to dual or triple inhaled therapy compared to placebo in patients with moderate to very severe COPD with a history of exacerbations across a range of baseline blood eosinophils.1,2

The safety and tolerability findings in TERRANOVA were consistent with those observed in previous trials with Fasenra. A full evaluation of the data is ongoing, and the results will be submitted for presentation at a forthcoming medical meeting. The Company does not currently intend to make a regulatory submission.

Fasenra is AstraZeneca's first respiratory biologic and is currently approved as an add-on treatment for severe eosinophilic asthma in the US, EU, Japan and several other countries. The results of the GALATHEA and TERRANOVA trials do not impact the approved indication in severe eosinophilic asthma.

COPD is a progressive disease which can cause obstruction of airflow in the lungs resulting in debilitating bouts of breathlessness.3 It affects an estimated 384 million people worldwide and is predicted to be the third-leading cause of death by 2020.3,4 At initial diagnosis, approximately one-third of COPD patients have severe or very severe forms of this disease.5 Improving lung function, reducing exacerbations and managing daily symptoms such as breathlessness are important to the management of COPD.3

About 30-40% of moderate to severe COPD patients on triple inhaled therapy (ICS/LAMA/LABA) remain uncontrolled and continue to experience exacerbations.6,7 COPD exacerbations significantly impair quality of life and are linked to disease progression, accelerated decline in lung function, and increased hospitalisations and mortality.8,9,10

Fasenra (benralizumab) is a monoclonal antibody that recruits natural killer cells to induce rapid and near-complete depletion of eosinophils, a type of white blood cell that are a normal part of the body's immune system.11,12 Depletion of circulating eosinophils is rapid, with an onset of action within 24 hours as confirmed in Phase I/II severe asthma trials.11,12,13

Fasenra is AstraZeneca's first respiratory biologic, now approved in severe eosinophilic asthma in the US, EU, Japan, Canada and Australia and under regulatory review in several other jurisdictions. Fasenra is also being tested in severe nasal polyposis.

Fasenra was developed by AstraZeneca with MedImmune, the company's global biologics research and development arm and is in-licensed from BioWa, Inc., a wholly-owned subsidiary of Kyowa Hakko Kirin Co., Ltd., Japan.

VOYAGER is AstraZeneca's Phase III Fasenra clinical trial programme in COPD and, with close to 4,000 patients, it is currently the largest COPD biologics development programme in the world.14 The VOYAGER programme includes two trials, GALATHEA and TERRANOVA, evaluating Fasenra in patients with moderate to very severe COPD with a history of exacerbations across a range of baseline blood eosinophils.14

Respiratory disease is one of AstraZeneca's main therapy areas, and the Company has a growing portfolio of medicines that reached more than 18 million patients in 2017. AstraZeneca's aim is to transform asthma and COPD treatment through inhaled combinations at the core of care, biologics for the unmet needs of specific patient populations, and scientific advancements in disease modification.

The Company is building on a 40-year heritage in respiratory disease and AstraZeneca's capability in inhalation technology spans pressurised metered-dose inhalers and dry powder inhalers, as well as the Aerosphere Delivery Technology. The company also has a growing portfolio of respiratory biologics, including Fasenra (anti-eosinophil, anti-IL-5rɑ), now approved for severe eosinophilic asthma and in development for severe nasal polyposis, and tezepelumab (anti-TSLP), which achieved its Phase IIb primary and secondary endpoints and is continuing development in the Phase III PATHFINDER clinical trial programme. AstraZeneca's research is focused on addressing underlying disease drivers focusing on the lung epithelium, lung immunity and lung regeneration.

MedImmune is the global biologics research and development arm of AstraZeneca, a global, innovation-driven biopharmaceutical business that focuses on the discovery, development and commercialisation of small molecule and biologic prescription medicines. MedImmune is pioneering innovative research and exploring novel pathways across Oncology, Respiratory, Cardiovascular & Metabolic Diseases, and Infection and Vaccines. The MedImmune headquarters is located in Gaithersburg, Md., one of AstraZeneca's three global R&D centres, with additional sites in Cambridge, UK and Mountain View, Calif. For more information, please visit www.medimmune.com

AstraZeneca is a global, science-led biopharmaceutical company that focuses on the discovery, development and commercialisation of prescription medicines, primarily for the treatment of diseases in three therapy areas - Oncology, Cardiovascular & Metabolic Diseases and Respiratory. The Company also is selectively active in the areas of autoimmunity, neuroscience and infection. AstraZeneca operates in over 100 countries and its innovative medicines are used by millions of patients worldwide.

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1. U.S. National Institutes of Health. "Efficacy and Safety of Benralizumab in Moderate to Very Severe Chronic Obstructive Pulmonary Disease (COPD) With Exacerbation History (TERRANOVA)." NCT02155660. 2018. Last Accessed May 2018. https://clinicaltrials.gov/ct2/show/NCT02155660?term=TERRANOVA&rank=1.

2. U.S. National Institutes of Health. "Benralizumab Efficacy in Moderate to Very Severe Chronic Obstructive Pulmonary Disease (COPD) With Exacerbation History (GALATHEA)." NCT02138916. 2018. Last Accessed May 2018. https://clinicaltrials.gov/ct2/show/NCT02138916?term=GALATHEA&rank=1.

3. GOLD. Global Strategy for the Diagnosis, Management and Prevention of COPD, Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2018. [Online]. Available at: http://goldcopd.org. Last accessed May 2018.

4. Bereza BG, Nielsen AT, Valgardsson S et al. Patient preferences in severe COPD and asthma: a comprehensive literature review. Int J Chron Obstruct Pulmon Dis. 2015: 10: 739-744.

5. Mapel DW, Anand AD, Blanchette CM et al. Severity of COPD at initial spirometry-confirmed diagnosis: data from medical charts and administrative claims. Int J Chron Obstruct Pulmon Dis. 2011;6:573-81. doi: 10.2147/COPD.S16975.

6. Vestbo J, Papi A, Corradi M, et al. Single inhaler extrafine triple therapy versus long-acting muscarinic antagonist therapy for chronic obstructive pulmonary disease (TRINITY): a double-blind, parallel group, randomised controlled trial. Lancet 2017; 389: 1919-29.

7. Mullerova H, Maskell J, Meeraus WH, Galkin D, Albers FC, Gait C. Characterization of COPD patients treated with inhaled triple therapy containing inhaled corticosteroids [ICS], long-acting beta2- agonists [LABA], and long-acting muscarinic antagonists [LAMA] in the UK. Am J Respir Crit Care Med 2017; 195: A4986. abstract.

8. Hurst JR, Vestbo J, Anzueto A, et al. Evaluation of COPD Longitudinally to Identify Predictive Surrogate Endpoints(ECLIPSE) Investigators. Susceptibility to exacerbation in chronic obstructive pulmonary disease. N Engl J Med. 2010 Sep 16;363(12):1128-38.

9. Lange P, Halpin DM, O'Donnell DE, MacNee W. Diagnosis, assessment, and phenotyping of COPD: beyond FEV₁. Int J Chron Obstruct Pulmon Dis. 2016 Feb 19;11 Spec Iss:3-12.

10. Soler-Cataluna JJ et al. Severe acute exacerbations and mortality in patients with chronic obstructive pulmonary disease. Thorax. 2005 Nov; 60: 925-31.

11. Kolbeck R, Kozhich A, Koike M, et al. MEDI-563, a humanized anti-IL-5 receptor a mAb with enhanced antibody-dependent cell-mediated cytotoxicity function. J Allergy Clin Immunol. 2010 Jun;125(6):1344-1353.e2.

13. 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 Nov; 132(5): 1086 - 1096.e5.

14. AstraZeneca. Clinical Trials Appendix Full-Year and Q4 2017 Results Update. Available at https://www.astrazeneca.com/content/dam/az/PDF/2017/Full-Year/Full-Year%202017%20Results%20Clinical%20trials%20appendix.pdf. Last Accessed May 2018.

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	By: /s/ Adrian Kemp
	Name: Adrian Kemp
	Title: Company Secretary