BETRI-Prospective: Asthma Control in Single Inhaler ICS/LABA/LAMA (87/5/9 pMDI [BDP/FF/GB - 100/6/12.5 μg]) vs Single Inhaler ICS/LABA (200/6 pMDI [BDP/FF - 200/6 μg]) (BETRI)

June 25, 2026 updated by: Chiesi Farmaceutici S.p.A.

A Pragmatic, Phase IV, Randomized, Open-label, Multinational, Multicentre, 2-arm Parallel Group, Prospective Study Comparing Efficacy and Safety of Single Inhaler ICS/LABA/LAMA (Beclometasone/Formoterol Fumarate/Glycopyrronium Bromide [87/5/9 pMDI { BD/FF/GB -100/6/12.5 μg} ]) vs Single Inhaler ICS/LABA (Beclometasone Dipropionate Plus Formoterol Fumarate [200/6 pMDI { BD/FF - 200/6 μg} ]) in Asthma Subjects

This study will evaluate the effect of triple ICS/LAMA/LABA therapy with a BDP/FF/GB 100/6/12.5 µg on asthma control outcomes relative to ICS/LABA therapy with BDP/FF 200/6 μg in a population with asthma poorly controlled.

Study Overview

Detailed Description

This is a phase IV, pragmatic, randomized, open-label, 2-arm parallel group, multi-center. The study aims to compare BDP/FF/GB pMDI 100/6/12.5 µg BID with BDP/FF pMDI 200/6 μg BID in adult participants with asthma poorly controlled, using medium dose ICS/LABA for at least 3 months prior randomization.

Study Type

Interventional

Enrollment (Estimated)

644

Phase

  • Phase 4

Contacts and Locations

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

Study Contact

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

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

1 . Study participant's written informed consent obtained prior to any study related procedure.

2. Male or female study participants aged ≥18 years old. 3. Physician confirmed documented asthma diagnosis as per current clinical practice.

4. Stable asthma treatment prior randomisation: At least 3 months on any medium strength (MS) ICS/LABA regular treatment.

5. Poor asthma control at randomisation (ACQ-5 ≥1.5 and at least 1 exacerbation in the previous year).

6. Women with childbearing potential (WOCBP) and with fertile male partners: they and/or their partner must be willing to use a highly effective birth control method from the signature of the informed consent and until the last visit.

7. Study participants must have a cooperative attitude and the ability to be trained to use the patient app correctly, to be able to perform the required outcomes measurements (e.g. ePRO completion) and the ability to understand the risks involved.

Note: Study participants with asthma diagnosis and no clinically relevant concurrent COPD diagnosis upon clinical judgement can be included. Study participants on maintenance and reliever therapy (MART) can be included if the ICS dosage does not exceed 400 µg/day of beclometasone or equivalent.

Exclusion Criteria: The presence of any of the following will exclude a study participant from study enrolment:

  1. Participation in another interventional clinical trial.
  2. Pregnant or breastfeeding women at the moment of enrolment.
  3. Other chronic respiratory disease: Lung Cancer, known alpha1-antitrypsin deficiency, active tuberculosis, clinically significant bronchiectasis, interstitial lung disease, pulmonary hypertension, or any other uncontrolled/clinically significant diseases (according to investigator's judgement).
  4. Contraindication for LAMA use.
  5. Study participants on biological therapies for asthma.
  6. For France only: Individuals under court protection (including protected adults) and individuals not affiliated to a social security system are excluded from participation in this study (Country/Region-Specific Differences - France), in accordance with Articles L.1121-6, L.1121-8, and L.1121-8-1 of the French Public Health Code.

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: BDP/FF/GB
Trimbow® 87/5/9 pMDI (BDP/FF/GB 100/6/12.5 µg) - 2 inhalations bid
Beclometasone dipropionate, formoterol fumarate, and glycopyrronium bromide BDP/FF/GB (100/6/12.5 µg per actuation) administered via pressurised metered-dose inhaler (pMDI) 2 inhalations bid (i.e. 2 inhalations in the morning and 2 inhalations in the evening) for a total of 12 months.
Other Names:
  • Trimbow®
Active Comparator: BDP/FF
Foster® 200/6 pMDI (BDP/FF 200/6 µg) - 2 inhalations bid
Beclometasone dipropionate, formoterol fumarate (BDP/FF-200/6 µg) administered via pressurised metered-dose inhaler (pMDI) 2 inhalations bid (i.e. 2 inhalations in the morning and 2 inhalations in the evening) for a total of 12 months.
Other Names:
  • Foster®

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in ACQ-5 score
Time Frame: Baseline to Month 12 (Visit 7)

To demonstrate non inferiority of BDP/FF/GB-100/6/12.5 µg compared to BDP/FF-200/6 µg in terms of change in the Asthma Control Questionnaire-5 (ACQ-5) at Visit 7 (i.e. at Month 12) versus baseline.

ACQ-5 is a one-week recall questionnaire including 5 patient-reported questions, each scored on a 7-point scale (0 = no impairment, 6 = maximum impairment). All questions are equally weighted, and the ACQ-5 score is calculated as the mean of the 5 responses, resulting in a total score ranging from 0 (totally controlled) to 6 (severely uncontrolled).

Baseline to Month 12 (Visit 7)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change from baseline in ACQ-5 at all applicable visits.
Time Frame: Baseline to Month 12 (Visit 7)
Change from baseline in ACQ-5 at all applicable visits. Asthma Control Questionnaire-5 is a one-week recall questionnaire including 5 patient-reported questions, each scored on a 7-point scale (0 = no impairment, 6 = maximum impairment). All questions are equally weighted, and the ACQ-5 score is calculated as the mean of the 5 responses, resulting in a total score ranging from 0 (totally controlled) to 6 (severely uncontrolled).
Baseline to Month 12 (Visit 7)
Rate of severe asthma exacerbations
Time Frame: Month 12 treatment period and Baseline to Month 6 (Visit 4) and Month 12 (Visit 7)
Rate of severe asthma exacerbations during the 12-month treatment period including specific analysis at 6 and 12 months.
Month 12 treatment period and Baseline to Month 6 (Visit 4) and Month 12 (Visit 7)
Rate of moderate/severe asthma exacerbations
Time Frame: Month 12 treatment period and Baseline to Month 6 (Visit 4) and Month 12 (Visit 7)
Rate of moderate/severe asthma exacerbations during the 12-month treatment period including specific analysis at 6 and 12 months
Month 12 treatment period and Baseline to Month 6 (Visit 4) and Month 12 (Visit 7)
Time to first severe asthma exacerbation.
Time Frame: Month 12 treatment period
Time to first severe asthma exacerbation.
Month 12 treatment period
Time to first moderate/severe asthma exacerbation.
Time Frame: Month 12 treatment period
Time to first moderate/severe asthma exacerbation.
Month 12 treatment period
Speed of change questionnaire at each applicable study visit.
Time Frame: Month 12 treatment period
Speed of change questionnaire at each applicable study visit.
Month 12 treatment period
Eosinophils value
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change from baseline in eosinophils value at each applicable study visit.
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Chronic Airways Assessment Test (CAAT)
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
CAAT questionnaire consists of 8 items scored from 0 to 5, with a total score ranging from 0 to 40; higher scores indicate worse health status.
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Cardiovascular Event Rate
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Percentage of study participants with cardiovascular and/or fatal events (considering standard adverse event [AE] data collection)
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Asthma remission rate
Time Frame: Month 6 (Visit 4), Month 12 (Visit 7)
Percentage of study participants with partial and complete asthma remission at 6 and 12 months.
Month 6 (Visit 4), Month 12 (Visit 7)
Change in Spirometry parameters: FEV1
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by spirometry: FEV1 (forced expiratory volume in 1 second), expressed as volume (L).
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Spirometry parameters: FVC
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by spirometry: FVC (forced vital capacity), expressed as volume (L).
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Spirometry parameters: FEV1/FVC ratio
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by spirometry: FEV1/FVC ratio, expressed as a percentage (%).
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Spirometry parameters: FEF25-75
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by spirometry: FEF25-75 (forced expiratory flow between 25% and 75% of FVC), expressed as flow (L/s).
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Spirometry parameters: ratio of FEF25-75 to FVC
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by spirometry: ratio of FEF25-75 to FVC.
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Spirometry parameters: FEV1%
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by spirometry: FEV1 as percentage of predicted normal values (%).
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Spirometry parameters: FVC% of predicted normal
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by spirometry: FVC as percentage of predicted normal values (%).
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Oscillometry parameters- R5 (Total airway resistance)
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by oscillometry: Resistance at 5 Hz (R5), representing total airway resistance, expressed in kPa·L-¹·s.
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Oscillometry parameters- R20 (Central airway resistance)
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by oscillometry: Resistance at 20 Hz (R20), representing central airway resistance, expressed in kPa·L-¹·s.
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Oscillometry parameters- R5-R20 (Peripheral airway resistance)
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by oscillometry: Difference between resistance at 5 Hz and 20 Hz (R5-R20), representing peripheral airway resistance, expressed in kPa·L-¹·s.
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Oscillometry parameters-X5 (Reactance)
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by oscillometry: Reactance at 5 Hz (X5), reflecting distal airway reactance, expressed in kPa·L-¹·s.
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Oscillometry parameters-Fres (Resonant frequency)
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by oscillometry: Resonant frequency (Fres), defined as the frequency at which reactance equals zero, expressed in Hz
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in Oscillometry parameters-AX (Area of reactance)
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Pulmonary function tests measured by oscillometry: Area of reactance (AX), representing the integrated low-frequency reactance, expressed in Hz·kPa·L-¹·s.
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Oral systemic corticosteroids days
Time Frame: Month 12 treatment period
Number of days with oral systemic corticosteroids
Month 12 treatment period
Change from baseline in Test of Adherence to Inhalers (TAI) questionnaire at each applicable visit.
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Test of Adherence to Inhalers (TAI) questionnaire change. The TAI-10 score is automatically calculated on the electronic device by summing the individual item scores (1-10) ranging from 10-50, with higher score indicating better adherence. The TAI 12-item total score is derived manually as sum of TAI-10 total score and items 11 and 12 scores.
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Change in quality-of-life questionnaire: EQ-5D-5L
Time Frame: Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
EQ-5D-5L = EuroQol 5-Dimension 5-Level: index values range from <0 to 1 (higher values indicate better health), and EQ VAS scores range from 0 to 100 (higher scores indicate better self-rated health).
Month 0 Baseline (Visit 1), Month 2 (Visit 2), Month 4 (Visit 3), Month 6 (Visit 4), Month 8 (Visit 5), Month 10 (Visit 6), and Month 12 (Visit 7)
Oral systemic corticosteroids dose
Time Frame: Month 12 treatment period
Dose of oral systemic corticosteroids (mg)
Month 12 treatment period

Collaborators and Investigators

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

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 (Estimated)

June 12, 2026

Primary Completion (Estimated)

June 13, 2028

Study Completion (Estimated)

June 13, 2028

Study Registration Dates

First Submitted

May 21, 2026

First Submitted That Met QC Criteria

June 19, 2026

First Posted (Actual)

June 24, 2026

Study Record Updates

Last Update Posted (Actual)

June 29, 2026

Last Update Submitted That Met QC Criteria

June 25, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Chiesi clinical data sharing scope, process and data access criteria is available on the Chiesi Group website.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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