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Breztri

Phase 3

Asthma | Small molecule | Respiratory |AstraZeneca PLC|Last Updated: Aug 26, 2026

Target and mechanism

ModalitySmall molecule

Also known as Bretzri

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials2
Total Enrollment4,461

FDA Designations

No designations recorded

Clinical trial landscape

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)
RECRUITING5,000 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 Sites921

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)

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
LOWJun 24, 2026NCT06283966Enrollment: 5000 → 5250
LOWJun 24, 2026NCT06283966Enrollment: 5000 → 5250