Exacerbations and Real-World Outcomes Among Patients With Chronic Obstructive Pulmonary Disease Following Severe Exacerbation

February 10, 2026 updated by: AstraZeneca

Exacerbations and Real-World Outcomes Among Patients With Chronic Obstructive Pulmonary Disease Following Severe Exacerbation (MITOS:EROS+DISCHARGE)

This real-world retrospective study will use de-identified administrative claims data and will examine patients with a diagnosis of COPD who have experienced a qualifying severe disease exacerbation and received subsequent treatment with BGF. Agreed COPD patient data from the Inovalon MORE2 Registry® and Centers for Medicare & Medicaid Services (CMS) 100% Medicare Fee for Service (FFS) database spanning from January 1, 2021 to the most recently available data (September 30th, 2024 for the MORE2 database, and December 31st, 2023 for the Medicare FFS database) will be used for this analysis. All patients will be required to present at least one prescription claim for BGF. Patients will also be required to show evidence of a qualifying severe COPD exacerbation event during the 180-day period preceding initiation of BGF. Index date will be set as the date of discharge from the qualifying severe exacerbation event.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
3598

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Maryland
      • Gaithersburg, Maryland, United States, 20878
        • AstraZeneca

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

The study population is selected to allow a clear comparison of outcomes according to the timing of BGF initiation following a severe COPD exacerbation. The overall sample will include adult (aged ≥40) patients with COPD who have experienced a qualifying severe COPD exacerbation and received treatment with BGF within 6 months. Patients should not have prior single inhaler triple therapy (SITT) use during the available history of patients' data preceding the qualifying index severe exacerbation and prior to initiating BGF treatment.

Description

Inclusion Criteria:

  • ≥ 1 prescription(s) fill for BGF on or following January 1, 2021

  • Patients must have evidence of a severe qualifying exacerbation event.

    • The qualifying severe exacerbation event discharge date must occur within the 180-day period preceding the initiation of BGF for classification of patients into prompt or delayed initiators of BGF.
    • The discharge date of the first (earliest) observed qualifying index exacerbation event will be set as the index date
  • ≥ 12 months of continuous health plan enrollment preceding the qualifying index exacerbation event date (baseline period)
  • ≥ 1 day of continuous enrollment following the qualifying index exacerbation date
  • Age ≥ 40 years on the qualifying index exacerbation date

Exclusion Criteria:

  • Presence of cancer diagnoses other than basal or squamous cell skin cancer during the baseline period preceding the index date or entire follow-up period
  • Presence of ≥2 claims with a diagnosis of interstitial fibrosis or sarcoidosis diagnoses during the period preceding the index date or entire follow-up period
  • Presence of SITT at any time during the entire available history of patients' data preceding the index date through BGF initiation

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Prompt
Patients initiating BGF within 30-days of exacerbation
Drug: BGF- BUDESONIDE/GLYCOPYRRONIUM/FORMOTEROL
This is a real-world observational study evaluating the timing of BGF, post discharge.
Delayed
Patients initiating BGF within 31-180 days of exacerbation
Drug: BGF- BUDESONIDE/GLYCOPYRRONIUM/FORMOTEROL
This is a real-world observational study evaluating the timing of BGF, post discharge.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Annualized COPD Exacerbation Event Rate
Time Frame: 180 days
Annualized rates of COPD exacerbation events observed from index date (qualifying exacerbation event) through study completion (or until end of data availability
180 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Annualized Cardiopulmonary Event Rate
Time Frame: 180 days
Annualized rates of cardiopulmonary events observed from index date (qualifying exacerbation event) through study completion (until end of data availability)
180 days
Annualized rate of all-cause mortality
Time Frame: 180 days
Annualized incidence of all-cause mortality observed from index date (qualifying exacerbation event) through study completion (until end of data availability)
180 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
AstraZeneca

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Della Varghese, PhD, AstraZeneca

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 31, 2025

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 28, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 28, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 28, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 10, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 17, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 17, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 10, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • D5980R00121

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.

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

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • CSR

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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