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AstraZeneca’s Breztri Aerosphere approved in the US for COPD

AstraZeneca plc (LON:AZN) Breztri Aerosphere has been approved in the US for the maintenance treatment of patients with chronic obstructive pulmonary disease (COPD).

The approval by the US Food and Drug Administration (FDA) was based on positive results from the Phase III ETHOS trial in which Breztri Aerosphere, a triple-combination therapy, showed a statistically significant reduction in the rate of moderate or severe exacerbations compared with dual-combination therapies Bevespi Aerosphere (glycopyrrolate/formoterol fumarate) and PT009 (budesonide/formoterol fumarate).1 The approval was also supported by efficacy and safety data from the Phase III KRONOS trial.2

Dr. Fernando J. Martinez, Chief of Division of Pulmonary and Critical Care Medicine at Weill Cornell Medicine and New York-Presbyterian Weill Cornell Medical Center, New York, US and Investigator in the ETHOS trial, said: “Preventing exacerbations is central to the management of chronic obstructive pulmonary disease. Even a single exacerbation can have a negative impact on a patient’s lung function and quality of life, and it can increase the risk of death. Breztri Aerosphere  has demonstrated significant benefits in reducing exacerbations in patients suffering from COPD.”

Mene Pangalos, Executive Vice President, BioPharmaceuticals R&D, said:Breztri Aerosphere has demonstrated a strong clinical profile compared with dual-combination therapies and offers a meaningful new treatment option for patients. Chronic obstructive pulmonary disease is a debilitating progressive condition and the fourth leading cause of death in the US. We look forward to discussing all-cause mortality data from the Breztri Aerosphere ETHOS trial with health authorities.”

Results from the Phase III ETHOS trial were published in The New England Journal of Medicine1 in June 2020 and results from the Phase III KRONOS trial were published in TheLancet Respiratory Medicine in September 2018.2 In both trials, the safety and tolerability of Breztri Aerosphere were consistent with the profiles of the dual comparators.1,2

Breztri Aerosphere is not indicated for the relief of acute bronchospasm or for the treatment of asthma in the US or other countries. Breztri Aerosphere is approved in Japan and China for patients with COPD and under regulatory review in the EU.

Financial considerations

Under the terms of the past agreement to acquire Pearl Therapeutics Inc., AstraZeneca will make a $150m milestone payment upon US regulatory approval of Breztri Aerosphere for COPD. This is the final development and regulatory milestone under that agreement.

COPD

COPD is a progressive disease which can cause obstruction of airflow in the lungs resulting in debilitating bouts of breathlessness.It affects an estimated 384 million people4 and is the third leading cause of death globally.5 Improving lung function, reducing exacerbations and managing daily symptoms such as breathlessness are important treatment goals in the management of COPD.3 Even a single COPD exacerbation may be associated with a significant increase in the rate of decline in lung function,6 a significant deterioration in quality of life,7 and can significantly reduce life expectancy and increase the risk of mortality.8,9

ETHOS, KRONOS and the ATHENA clinical trial programme

ETHOS is a randomised, double-blinded, multi-centre, parallel-group, 52-week trial to assess the efficacy and safety of Breztri Aerosphere in symptomatic patients with moderate to very severe COPD and a history of exacerbation(s) in the previous year. The primary endpoint was the rate of moderate or severe exacerbations.1

KRONOS is a randomised, double-blinded, parallel-group, 24-week, chronic-dosing, multi-centre trial to assess the efficacy and safety of Breztri Aerosphere in patients with moderate to very severe COPD regardless of whether or not they had an exacerbation in the previous year. The primary endpoints were lung function parameters.2

ETHOS and KRONOS are part of AstraZeneca’s ATHENA Phase III clinical trial programme for Breztri Aerosphere, which included more than 15,500 patients globally across 11 trials.

Breztri Aerosphere

Breztri Aerosphere (budesonide/glycopyrrolate/formoterol fumarate) is a single-inhaler, fixed dose triple-combination of budesonide, an inhaled corticosteroid (ICS), with glycopyrrolate, a long-acting muscarinic antagonist (LAMA), and formoterol fumarate, a long-acting beta2-agonist (LABA), delivered in a pressurised metered-dose inhaler.

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