Plain English Summary
Background and study aims
Chronic obstructive pulmonary disease (COPD) is a common, preventable and treatable disease characterized by persistent respiratory symptoms and airflow limitation caused by abnormalities in the lungs due to exposure to particulate matter or gas. Treatment with inhaled corticosteroids (ICS) in combination with long-acting bronchodilators (to open the air passages in the lungs) is more effective than the individual components in improving lung function, symptoms, and exacerbations. Usually, a triple combination with one ICS plus two long-acting bronchodilators are administered at severe COPD patients. Adding a short-acting bronchodilator (i.e. salbutamol) in addition to basic inhalation therapy with long-acting bronchodilators may further improve the level of bronchodilation. The aim of this study was to assess whether triple combination therapy may lead to maximal bronchorelaxant effect in the airways of COPD patients.
Who can participate?
Severe COPD patients were enrolled in the study.
What does the study involve?
Patients were treated for 15 days with triple combination therapy, and generally they were assessed for lung function, symptoms, and routine procedures.
What are the possible benefits and risks of participating?
These patients had the benefit to be treated with the most effective therapy for severe COPD, the so-called triple combination therapy. The risks were the potential adverse events already known for the triple combination therapy used in this study and already approved in the market, named Trimbow®.
Where is the study run from?
The study was run at the University Hospital of Rome "Tor Vergata", Italy,
When is the study starting and how long is it expected to run for?
January 2019 to September 2020
Who is funding the study?
The University Hospital of Rome "Tor Vergata" (Italy)
Who is the main contact?
Prof. Paola Rogliani
Prof Paola Rogliani
+39 (0)6 2090 4656
Dr Luigino Calzetta
+39 (0)6 76259 6666
Ceiling effect of triple beclomethasone dipropionate/formoterol fumarate/glycopyrronium bromide combination in COPD: a translational bench-to-bedside study
The aim of this study is to assess residual bronchodilation in patients suffering from chronic obstructive pulmonary disease (COPD) after administration of the beclomethasone dipropionate (BDP)/formoterol fumarate (FF)/glycopyrronium bromide (GB) triple combination. BDP/FF/GB is a fixed-dose combination (FDC) of a long-acting muscarinic antagonist (LAMA), a long-acting β2 adrenoceptor agonist (LABA) and an inhaled corticosteroid (ICS) already approved as chronic therapy by EMA and AIFA for COPD patients with two moderate exacerbations per year or one severe and symptomatic exacerbation. According to the current GOLD recommendations, the COPD patient in chronic therapy with bronchodilators can use, if needed, therapy with short-acting bronchodilators such as salbutamol. However, to date, it is not known whether the "add-on" therapy of a short-acting bronchodilator such as salbutamol may result in an improvement in lung function in COPD patients already on BDP/FF/GB therapy.
Overall, this study investigates whether BDP/FF/GB may lead to ceiling bronchorelaxant effect in the airways of COPD patients, and whether there may be some different effect at the level of medium bronchi and small airways.
Approved 26/02/2020, Local institutional ethics committee CEI (Comitato Etico Indipendente, Rome “Tor Vergata”, Viale Oxford, 81 - 00133 Roma, Italy; +39 06 2090 0035; no email provided), ref: RS 252/19, 2020
Pilot single-arm open-label prospective observational single-centre study
Primary study design
Secondary study design
Patient information sheet
Not available in web format, please use the contact details below to request a patient information sheet
Chronic obstructive pulmonary disease (COPD)
Pulmonary function test (PFT) and impulse oscillometry (IOS) are performed at baseline before and during dose-response curve (DRC) to salbutamol (100 μg, 200 μg, 400 μg, 800 μg). After that, patients are treated with Trimbow®, an extrafine formulation of BDP, FF, and GP (BDP/FF/GB 100/6/12.5 μg) administered BID as FDC. At day 14 the DRC to salbutamol is performed on top of the peak effect induced by BDP/FF/GB 100/6/12.5 μg FDC (2 h after the last inhalation of the FDC), along with PFT and IOS. At day 15 (visit 4) the DRC to salbutamol is performed on top of the trough effect induced by BDP/FF/GB 100/6/12.5 μg FDC (11 h after the last inhalation of the triple combination therapy), along with PFT and IOS.
1. Beclomethasone dipropionate
2. Formoterol fumarate
3. Glycopyrronium bromide
Primary outcome measure
Bronchorelaxant effect at the level of small airways (airway resistance) measured using impulse oscillometry at baseline (day 1), day 14 and day 15
Secondary outcome measures
1. Bronchorelaxant effect at the level of medium bronchi measured using forced expiratory volume in 1 s [FEV1] at baseline (day 1), day 14 and day 15
2. Dyspnea using Modified British Medical Research Council Questionnaire ( mMRC) and Visual Analogue Scale (VAS) at baseline (day 1), day 14 and day 15
3. Oxygen saturation (SpO2) and heart rate (HR) using pulse oximetry at baseline (day 1), day 14 and day 15
Overall trial start date
Overall trial end date
Reason abandoned (if study stopped)
Participant inclusion criteria
1. COPD patients ≥40 years old
2. Current or former smokers, with a cigarette smoking history of ≥10 pack-years
3. Confirmed diagnosis of COPD (FEV1/forced vital capacity (FVC) <0.7) FEV1 <65% predicted, history of ≥1 severe exacerbation of COPD in the last year
Target number of participants
Total final enrolment
Participant exclusion criteria
1. Patients with history of asthma
2. Reversibility of FEV1 by >200 ml and/or >12% after inhalation of 200 μg salbutamol
3. Under treatment with ICS
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
University of Rome "Tor Vergata"
Università degli Studi di Roma Tor Vergata
University of Rome Tor Vergata
Funding Body Type
private sector organisation
Funding Body Subtype
Universities (academic only)
Results and Publications
Publication and dissemination plan
Planned publication in a high-impact peer-reviewed journal
IPD sharing statement:
The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
Investigator: Paola Rogliani email@example.com
Type of data: patient-level data, available in about 6 months for about 12 months
Data will be available on request by providing anonymized excel files.
Data will be available only for reasonable scientific research and shared with scientific institutions, only after approval by the local Ethics Committee.
Intention to publish date
Participant level data
Available on request
Basic results (scientific)