BREZTRI REGULATORY POST MARKETING SURVEILLANCE IN KOREA (Breztri rPMS)

As part of a post-approval commitment requested by the Ministry of Food and Drug Safety (MFDS), this open-label, single-arm, multicentre, observational Post-Marketing Surveillance (PMS) study aims to characterize the safety profile of Breztri in real-world clinical practice settings, either confirming known safety outcomes or identifying previously unsuspected adverse drug reactions. The study will also evaluate effectiveness of Breztri in real-world clinical practice settings, generating essential clinical evidence from a broader and more diverse Korean patient population representative of daily medical practice.

Study Overview

• Status: Not yet recruiting
• Conditions: Asthma; Chronic Obstructive Pulmonary Disease (COPD)

Detailed Description

This is an open-label, primary data collection, single-arm, multicentre, observational study. Eligible patients who initiate treatment with Breztri according to approved indications will be enrolled after obtaining informed consent. All patients treated (minimum 600 patients required) with Breztri in accordance with the local prescribing information are eligible for enrolment in this study. Initiation or continuation of Breztri prescription and patient enrolment will depend on physicians' medical decisions as per routine clinical practice. Approximately 30 study sites are expected to participate in this study.

As this study will be performed under clinical practice, the investigator may prescribe any other concomitant medications that are necessary for the patient as locally approved.

The total number of visits and the visit time will be determined at the discretion of the investigator based on the patient's condition.

Patients will be observed for up to 24 weeks. Follow-up will begin on the date of the first administration of Breztri (index date). However, if a patient is found to meet any of the exclusion criteria after enrolment, no additional follow-up (including the 30-day safety follow-up) will be conducted.

The primary objective of this study is to characterize the safety profile separately in patients with COPD and in patients with asthma receiving Breztri under the approved indication(s) in Korea over a 24-week follow-up period, or until the end of treatment (EoT) if discontinued earlier.

The secondary objective of this study is to describe changes in clinical outcomes from baseline to week 12 and week 24, separately in patients with COPD and in patients with asthma receiving Breztri under the approved indication(s) in Korea.

The exploratory objective of this study is to identify patients' baseline characteristics that might be associated with safety and clinical outcomes separately in patients with COPD and in patients with asthma receiving Breztri under the approved indication(s) in Korean patients.

• Study Type: Observational
• Enrollment (Estimated): 600

Contacts and Locations

• Study Contact: Name: AstraZeneca Clinical Study Information Center; Phone Number: 1-877-240-9479; Email: information.center@astrazeneca.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

Patients newly initiating treatment with Breztri in accordance with the local prescribing information will be enrolled.

Description

Inclusion Criteria:

1. Patients who have been diagnosed with COPD or asthma.
2. Patients who have newly initiated treatment with Breztri according to the approved label in Korea
3. Provision of signed and dated written informed consent by the patient or legally acceptable representative

Exclusion Criteria:

1. Other off-label indications outside of the locally approved prescribing information
2. Pregnant and/or breast feeding
3. Current participation in any interventional trial

Study Plan

How is the study designed?

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort
Chronic obstructive pulmonary disease; Patients who have been diagnosed with COPD
Asthma; Patients who have been diagnosed with asthma

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Incidence proportion of Adverse Events (AEs)/Adverse Drug Reactions (ADRs)	All AEs/ADRs will be presented as the number of patients with an outcome of interest, the incidence proportion percentages, and the number of events, the corresponding Clopper-Pearson's two-sided 95% exact confidence interval (CI), and the number of events.	24 weeks
Incidence proportion of Serious AEs (SAEs)/Serious ADRs (SADRs)	SAEs/SADRs will be presented as the number of patients with an outcome of interest, the incidence proportion percentages, and the number of events, the corresponding Clopper-Pearson's two-sided 95% exact confidence interval (CI), and the number of events.	24 weeks
Incidence proportion of Unexpected AEs/Unexpected ADRs	Unexpected AEs/ADRs will be presented as the number of patients with an outcome of interest, the incidence proportion percentages, and the number of events, the corresponding Clopper-Pearson's two-sided 95% exact confidence interval (CI), and the number of events.	24 weeks
Incidence proportion of Unexpected SAEs/Unexpected SADRs	Unexpected SAEs/SADRs, will be presented as the number of patients with an outcome of interest, the incidence proportion percentages, and the number of events, the corresponding Clopper-Pearson's two-sided 95% exact confidence interval (CI), and the number of events.	24 weeks

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Describe changes in clinical outcomes from baseline to week 12 and 24 in patients with COPD receiving Breztri under the approved indication(s) in Korea	Change from baseline to week 12 and 24(within a window of ±6 weeks) in predose Forced Expiratory Volume in 1 second (FEV₁) FEV₁ represents the volume of air forcibly exhaled in the first second of a forced expiratory maneuver, measured in milliliters (mL). Improvement indicates enhanced lung function.	12 and 24 weeks
Change from baseline to week 12 and 24 in COPD Assessment Test (CAT) score	Change from baseline to week 12 and 24(within a window of ±6 weeks) in COPD Assessment Test (CAT) score The CAT is an 8-item questionnaire assessing the impact of COPD symptoms on health status. Scores range from 0 (best) to 40 (worst), with lower scores indicating better health status.	12 and 24 weeks
Describe changes in clinical outcomes from baseline to week 12 and 24 in patient with asthma receiving Breztri under the approved indication(s) in Korea	Change from baseline to week 12 and 24(within a window of ±4 weeks) in investigator assessed asthma control Asthma control assessed by the study investigator according to GINA guidelines: "Well controlled", "Partly controlled", and "Uncontrolled".	12 and 24 weeks

Collaborators and Investigators

• Sponsor: AstraZeneca

Study record dates

Study Major Dates

• Study Start (Estimated): September 30, 2026
• Primary Completion (Estimated): July 31, 2027
• Study Completion (Estimated): July 31, 2027

Study Registration Dates

• First Submitted: April 30, 2026
• First Submitted That Met QC Criteria: April 30, 2026
• First Posted (Actual): May 6, 2026

Study Record Updates

• Last Update Posted (Actual): September 14, 2026
• Last Update Submitted That Met QC Criteria: September 10, 2026
• Last Verified: September 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pathologic Processes; Chronic Disease; Disease Attributes; Immune System Diseases; Respiratory Tract Diseases; Lung Diseases; Bronchial Diseases; Lung Diseases, Obstructive; Respiratory Hypersensitivity; Hypersensitivity, Immediate; Hypersensitivity; Pathological Conditions, Signs and Symptoms; Pulmonary Disease, Chronic Obstructive; Asthma
• Other Study ID Numbers: D5980R00025

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES

IPD Plan Description

Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment:

https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

IPD Sharing Time Frame

AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA PhRMA Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

IPD Sharing Access Criteria

When a request has been approved AstraZeneca will provide access to the anonymized individual patient-level data via secure research environment Vivli.org.

Signed Data Usage Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information.

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No