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Breztri

Phase 3

Asthma | Small molecule | Respiratory |AstraZeneca PLC|Trials Updated: Oct 2, 2026

Breztri target and mechanism

ModalitySmall molecule

Also known as Bretzri, BGF

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials3
Total Enrollment9,711

FDA Designations

No designations recorded

Breztri clinical trials

Breztri · 3 trials · 2 indications

Phase 3 3
NCT06283966A Study Evaluating the Efficacy of Budesonide, Glycopyrronium and Formoterol Fumarate Metered Dosed Inhaler on Cardiopulmonary Outcomes in Chronic Obstructive Pulmonary DiseaseCOPD (Chronic Obstructive Pulmonary Disease)
RECRUITING5,250 Analytics
NCT04609904Study to Assess PT010 in Adult and Adolescent Participants With Inadequately Controlled Asthma (LOGOS)Asthma
COMPLETED2,187 Analytics
NCT04609878Study to Assess PT010 in Adult and Adolescent Participants With Inadequately Controlled Asthma (KALOS)Asthma
COMPLETED2,274 Analytics
PHASE3RECRUITING
A Study Evaluating the Efficacy of Budesonide, Glycopyrronium and Formoterol Fumarate Metered Dosed Inhaler on Cardiopulmonary Outcomes in Chronic Obstructive Pulmonary Disease
COPD (Chronic Obstructive Pulmonary Disease)Unlock trial analytics
PHASE3COMPLETED
Study to Assess PT010 in Adult and Adolescent Participants With Inadequately Controlled Asthma (LOGOS)
AsthmaUnlock trial analytics
PHASE3COMPLETED
Study to Assess PT010 in Adult and Adolescent Participants With Inadequately Controlled Asthma (KALOS)
AsthmaUnlock trial analytics

Study Endpoints

Primary Endpoints

Time to first severe cardiac or COPD event
Up to 3 years

Evaluate the effect of combination triple therapy (BGF MDI 320/14.4/9.6 μg) compared with dual bronchodilator therapy (GFF MDI 14.4/9.6 μg) on cardiopulmonary outcomes.

Change From Baseline in FEV1 AUC0-3 (L) at Week 24
Week 24

Change from baseline in forced expiratory volume in 1 second (FEV1) area under the curve 0 to 3 hours (AUC0-3) at Week 24. Treatment policy was implemented to handle all intercurrent events (ICEs) with the exception of initiation of new asthma therapy or use of prohibited medications thought to impact efficacy in conjunction with premature discontinuation of study intervention, for which the composite strategy was implemented.

Pooled (LOGOS/KALOS): Rate of Severe Asthma Exacerbations
Up to 52 Weeks

Rate of severe asthma exacerbations was assessed in a pre-specified pooled analysis across replicate studies D5982C00008 and D5982C00007 (NCT04609878). An asthma exacerbation was severe if it resulted in at least 1 of the following: systemic corticosteroids for 3 days, an ER/urgent care visit requiring systemic corticosteroids, a hospitalization, or death related to asthma. Consecutive exacerbations with start/stop days ≤7 days apart were considered the same event. Treatment policy was implemented to handle all ICEs with the exception of initiation of new asthma therapy or use of prohibited medications thought to impact efficacy in conjunction with premature discontinuation of study intervention, for which the composite strategy was implemented.

Pooled (KALOS/LOGOS): Rate of Severe Asthma Exacerbations
Up to 52 weeks

Rate of severe asthma exacerbations was assessed in a pre-specified pooled analysis across replicate studies D5982C00007 and D5982C00008 (NCT04609904). An asthma exacerbation was severe if it resulted in at least 1 of the following: a course of systemic corticosteroids for 3 days to treat symptoms of asthma worsening, an ER/urgent care visit that required treatment with systemic corticosteroids, an inpatient hospitalization, or death related to asthma. Consecutive exacerbations with start/stop days ≤7 days apart were considered the same event of the highest severity. Treatment policy was implemented to handle all ICEs with the exception of initiation of new asthma therapy or use of prohibited medications thought to impact efficacy in conjunction with premature discontinuation of study intervention, for which the composite strategy was implemented.

Secondary Endpoints

Time to first severe COPD exacerbation event
Up to 3 years
Time to first severe cardiac event
Up to 3 years
Time to cardiopulmonary death
Up to 3 years
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
BGF armEXPERIMENTALBGF MDI 320/14.4/9.6 μg BID
GFF armEXPERIMENTALGFF MDI 14.4/9.6 μg BID
Budesonide, glycopyrronium, and formoterol fumarate (BGF) MDI 320/28.8/9.6 μgEXPERIMENTALBGF MDI 320/28.8/9.6 μg Budesonide, glycopyrronium, and formoterol fumarate (PT010) Metered Dose Inhaler (MDI)
BGF MDI 320/14.4/9.6 μgEXPERIMENTALBGF MDI 320/14.4/9.6 μg Budesonide, glycopyrronium, and formoterol fumarate (PT010) Metered Dose Inhaler (MDI)
Budesonide and formoterol fumarate (BFF) MDI 320/9.6 μgACTIVE_COMPARATORBFF MDI 320/9.6 μg (Experimental/Comparator) Budesonide and formoterol fumarate (PT009) Metered Dose Inhaler (MDI)
Symbicort®ACTIVE_COMPARATORBudesonide/ formoterol fumarate pressurized metered dose inhaler (pMDI) 320/9 μg

Interventions

NameTypeDescription
BGF MDI 320/14.4/9.6 μgDRUGBudesonide, glycopyrronium, and formoterol fumarate pressurized inhalation suspension
GFF MDI 14.4/9.6 μgDRUGGlycopyrronium and formoterol fumarate pressurized inhalation suspension
BGF MDI 320/28.8/9.6 μgDRUGBudesonide, glycopyrronium, and formoterol fumarate metered dose inhaler
BFF MDI 320/9.6 μgDRUGBudesonide and formoterol fumarate metered dose inhaler
BFF pMDI 320/9 μgDRUGBudesonide/formoterol fumarate pressurized metered dose inhaler
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Eligibility Criteria

Age Range40 Years to 80 Years
SexALL
Healthy VolunteersNo
Study Sites922

Inclusion Criteria: 1. Male or female participants must be 40 to 80 years of age inclusive, at the time of signing the ICF. 2. Demonstrate acceptable MDI administration technique at Visit 1 (V1) and Visit 2 (V2) 3. A diagnosis of COPD confirmed by a post-bronchodilator FEV1/FVC ratio \< 70% ...

Countries:United StatesArgentinaAustraliaAustriaBrazilBulgariaCanadaChileChinaColombiaCzechiaDenmarkFinlandFranceGermanyGreeceHungaryIndiaItalyJapanMalaysiaMexicoNorwayPeruPhilippinesPolandRomaniaSerbiaSlovakiaSouth KoreaSpainSwedenTaiwanThailandTurkey (Türkiye)UkraineUnited KingdomIsraelPortugalPuerto RicoRussiaSouth AfricaBelgiumNew ZealandVietnam
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Recent Changes (Last 90 Days)

LOWOct 2, 2026NCT06283966Enrollment: 5000 → 5250
LOWOct 2, 2026NCT06283966Enrollment: 5000 → 5250
LOWAug 26, 2026NCT06283966Enrollment: 5250 → 5000
LOWAug 26, 2026NCT06283966Enrollment: 5250 → 5000
MEDIUMAug 2, 2026NCT04609904TRIAL_REMOVED: changed
MEDIUMAug 2, 2026NCT04609904TRIAL_REMOVED: changed
MEDIUMAug 2, 2026NCT04609904TRIAL_REMOVED: changed
MEDIUMAug 2, 2026NCT04609904TRIAL_REMOVED: changed
MEDIUMJul 31, 2026NCT04609878TRIAL_REMOVED: changed
MEDIUMJul 31, 2026NCT04609878TRIAL_REMOVED: changed
MEDIUMJul 31, 2026NCT04609878TRIAL_REMOVED: changed

Frequently asked questions about Breztri

What is Breztri used for?

Breztri is used to treat chronic obstructive pulmonary disease (COPD) and asthma. It is a small molecule inhaled therapy developed by AstraZeneca for these respiratory conditions. The COPD program is in Phase 3, and the asthma program has been studied in completed Phase 3 trials in adults and adolescents with inadequately controlled disease.

Who makes Breztri?

Breztri is developed by AstraZeneca PLC, which trades under the ticker AZN. AstraZeneca is the sponsor of the clinical trials evaluating the therapy in COPD and asthma.

What phase is Breztri in?

Breztri is in Phase 3 clinical development. One Phase 3 trial in COPD is currently recruiting, while two Phase 3 asthma trials have been completed. The program has enrolled approximately 5,250 participants across its trials.

What clinical trials is Breztri in?

Breztri has been studied in Phase 3 trials including NCT06283966, a recruiting COPD study evaluating cardiopulmonary outcomes with planned enrollment of 5,250 participants. Completed asthma trials include NCT04609904 (LOGOS) with 2,187 participants and NCT04609878 (KALOS) with 2,274 participants, both in adults and adolescents with inadequately controlled asthma.

Is Breztri the same as Bretzri or BGF MDI?

Yes. Breztri is also known as Bretzri and as BGF MDI, with the dose strengths BGF MDI 320/28.8/9.6 micrograms and BGF MDI 320/14.4/9.6 micrograms. These names refer to the same AstraZeneca inhaled therapy, which is also referred to as PT010 in its clinical trials.

What is Breztri used for in COPD?

Breztri is used for chronic obstructive pulmonary disease, or COPD. A Phase 3 trial, NCT06283966, is evaluating the metered dose inhaler on cardiopulmonary outcomes in COPD. That study is recruiting participants aged 40 years and older across numerous countries, with a planned enrollment of 5,250.