Primary objective The primary objective was to evaluate the efficacy of a free combination of CHF 5259 at 3 dose levels plus Foster® 100/6 μg in a pMDI by comparison with Foster® 100/6 μg in terms of forced expiratory volume in the first second (FEV1) area under the curve between time 0 and 12 hours (AUC0-12h) normalised by time on Day 42. Key secondary objective The key secondary objective was to evaluate the efficacy of the free combination CHF 5259 plus Foster® 100/6 μg by comparison with Foster® 100/6 μg in terms of peak FEV1 on Day 42. Secondary objectives The secondary objectives were: * To evaluate the effect of the free combination of CHF 5259 plus Foster® 100/6 μg on other lung function parameters and on clinical outcome measures; * To assess the safety and the tolerability of the study treatments.
This was a dose-finding, phase II, multicentre, randomised, double-blind, active-controlled, 3-way cross-over of 6 weeks, balanced incomplete block and multiple dose study. Since each patient serves as his/her own control, the cross-over design reduces the effect of potentially confounding variables and allows for greater statistical power with fewer subjects. This study was designed to evaluate the efficacy of a free combination of CHF 5259 at 3 dose levels (25 μg, 50 μg or 100 μg daily) plus Foster vs. Foster alone, administered via pMDI over a 6-week treatment period in patients with uncontrolled asthma. A total of 220 patients were targeted for randomisation to ensure that a minimum of 164 completed the study (assuming an estimated non-evaluable rate of 25%). There were 4 treatments, but as it was a cross-over incomplete block design, each patient took only 3 treatments out of 4, according to the randomisation list of sequences: A-C-B; B-D-C; C-A-D and D-B-A. . The four treatments were: * Treatment A = CHF 5259 (GB 25 μg/day) plus Foster (BDP 400/FF 24 μg/day); * Treatment B = CHF 5259 (GB 50 μg/day) plus Foster (BDP 400/FF 24 μg/day); * Treatment C = CHF 5259 (GB 100 μg/day) plus Foster (BDP 400/FF 24 μg/day); * Treatment D = Foster (BDP 400/FF 24 μg/day) alone. Foster was used during the study as the control despite an indication in "patients not adequately controlled with inhaled corticosteroids and 'as needed' inhaled rapid-acting β2-agonist" (and not in patients with uncontrolled asthma). No risks for the patients were foreseen owing to the short study duration (6 weeks), the possibility of using salbutamol as rescue medication and the close medical monitoring during the entire study period. The Foster dose (400/24 μg daily) for the run-in and wash-out periods was selected as this is a standard dosing regimen marketed for the use of Foster in the treatment of asthma. This study comprised a total of 11 visits and a follow-up phone call: * A Pre-Screening visit (Visit 0 \[V0\]), carried out in order to fully explain the study to potential patients, to obtain their written informed consent and to instruct them on Screening visit procedures (such as fasting and medication restrictions). This visit occurred one week maximum prior to the Screening visit.A Screening visit (V1), carried out to establish the eligibility of patients for inclusion in the study and to instruct them on study procedures (such as fasting, medication restrictions, recognition of asthma exacerbations and use of the pMDI device, of the e-diary and of the e-peakflow meter). This visit was followed by a 2-week (±2 days) open-label run-in period on Foster. A 2-week run-in period on Foster prior to randomisation was deemed sufficient to standardise the patient population on the same concomitant treatment without leading to a deterioration of the disease. * An investigational phase, which lasted approximately 21 weeks and comprised 3 treatment periods (Period \[P\] 1, P2 and P3) of 6 weeks each (±2 days) separated by an open-label wash-out period of 1 week on Foster. Each 6-week treatment period allowed for adequate assessment of efficacy variables. Each treatment period comprised 3 visits (Day \[D\] 1, Day 14 and Day 42) during which efficacy and safety assessments were performed. Patients were also re-instructed on study procedures. Patients underwent the following visits: * A Randomisation visit at Visit P1D1 (V2); * Eight subsequent visits: Day 1 of the second and third treatment period (day of the first dosing): Visit P2D1 (V5) and Visit P3D1 (V8); Day 14 of each treatment period: Visit P1D14 (V3), Visit P2D14 (V6) and Visit P3D14 (V9); Day 42 of each treatment period (day of last dosing): Visit P1D42 (V4), Visit P2D42 (V7) and Visit P3D42 (V10). These visits were followed by a 1-week wash-out period with Foster. • A safety follow-up phone call was made one week after Visit P3D42 (V10) (or 1 week after the last dose intake and/or last visit in case of premature discontinuation of the patient) to check any unresolved or new adverse events (AEs)/serious adverse events (SAEs).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
211
Comparison of different doses of CHF 5259 (on top of Foster 100/6 µg) versus Foster 100/6 µg over a treatment period of 6 weeks. Each subject was allocated to 3 out of the 4 possible treatments performed in sequence during a cross over design (incomplete block). All treatment medications were administered via pMDI. During each treatment period, treatment was administered as four puffs BID (morning and evening) approximately at the same time of the day.
Active comparator Treatment D = Foster 400 μg/24 μg (daily dose): patients followed a schedule of two puffs of CHF 5259 placebo BID and two puffs of Foster 100/6 μg BID. All treatment medications were administered via pMDI. During each of the 3 treatment periods, treatment was administered as four puffs BID (morning and evening) approximately at the same time of the day.
Chiesi Clinical Trial Site 0105
Dupnitsa, Bulgaria
Chiesi Clinical Trial Site 0101
Rousse, Bulgaria
Chiesi Clinical Trial Site 0106
Sevlievo, Bulgaria
Chiesi Clinical Trial Site 0107
Sofia, Bulgaria
Chiesi Clinical Trial Site 0108
Sofia, Bulgaria
Chiesi Clinical Trial Site 0102
FEV1 AUC0-12h Normalised by Time on Day 42
FEV1 = Forced expiratory volume in the first second. AUC0-12h = area under the curve between the time 0 and 12 hours. Post-dose FEV1 on Day 42 of each treatment period was recorded at 15'; 30'; 45'; 1h; 2h; 3h, 4h,6h,8h, 11h30 and 12h post-study drug intake. The baseline FEV1 was the average FEV1 recorded on Day 1 at 45 and 10 minutes prior to study intake.
Time frame: Day 42
Change From Baseline in Peak FEV1 on Day 42
Change from Baseline in peak FEV1 on Day 42 is the study key secondary outcome. It represents the maximum value of all FEV1 assessments from 15 minutes to 12 hours post-dose of the respective day. Post-dose FEV1 on Day 42 of each treatment period was recorded at 15'; 30'; 45'; 1h; 2h; 3h, 4h, 6h, 8h, 11h30 and 12h post-study drug intake. Baseline is the average of the FEV1 pre-dose measurements on Day 1 of each period (recorded at 45 and 10 minuted prior to study drug intake).
Time frame: Day 42
FEV1 AUC0-3h Normalised by Time on Day 1
AUC0-3h = area under the curve between time 0 and 3 hours. The pre-dose and post-dose lung function assessments were recorded under supervision at the following timing: * Pre-dose FEV1 on Day 1 at 45 and 10 minutes prior to study drug intake (baseline FEV1); * Post-dose FEV1 on Day 1 of each treatment period: at 15'; 30'; 45'; 1h; 2h; 3h post-study drug intake.
Time frame: Day 1
FEV1 AUC0-3h Normalised by Time on Day 42
AUC0-3h = area under the curve between time 0 and 3 hours. The pre-dose and post-dose lung function assessments were recorded under supervision at the following timings: * Pre-dose FEV1 on Day 1 at 45 and 10 minutes prior to study drug intake (baseline FEV1); * Post-dose FEV1 on Day 42 of each treatment period: at 15'; 30'; 45'; 1h; 2h; 3h post-study drug intake.
Time frame: Day 42
Change From Baseline in FEV1 Pre-dose on Day 14
The pre-dose morning FEV1 is defined as the mean of the two measurements at 45 and 10 minutes predose.
Time frame: Day 14
Change From Baseline in FEV1 Pre-dose on Day 42
The pre-dose morning FEV1 is defined as the mean of the two measurements at 45 and 10 minutes predose.
Time frame: Day 42
Change From Baseline in Through FEV1 at 12 h Post-dose on Day 1
Trough FEV1 at 12 hours is determined as the average of the 11.5 and 12 hours post-dose FEV1 assessments. Baseline value is the mean of the pre-dose measurement of FEV1 at Day 1 of each treatment period recorded at 45 and 10 minutes prior to study drug intake.
Time frame: Day 1
Change From Baseline in Through FEV1 at 12 h Post-dose on Day 42
Trough FEV1 at 12 hours is determined as the average of the 11.5 and 12 hours post-dose FEV1 assessments. Baseline value is the mean of the pre-dose measurement of FEV1 at Day 1 of each treatment period recorded at 45 and 10 minutes prior to study drug intake.
Time frame: Day 42
Change From Baseline in Peak FEV1 on Day 1
Peak FEV1 represents the maximum value of all FEV1 assessments from 15 minutes to 12 hours post-dose of the respective day (in this case on Day 1). Post-dose FEV1 on Day 1 of each treatment period was recorded at 15'; 30'; 45'; 1h; 2h; 3h, 4h,6h, 8h, 11h30 and 12h post-study drug intake. Baseline is the average of the FEV1 pre-dose measurements on Day 1 of each period (recorded at 45 and 10 minuted prior to study drug intake).
Time frame: Day 1
FEV1 AUC0-12h Normalised by Time on Day 1
AUC0-12h = area under the curve between time 0 and 12 hours. Post-dose FEV1 on Day 1 of each treatment period was recorded at 15'; 30'; 45'; 1h; 2h; 3h, 4h,6h, 8h, 11h30 and 12h post-study drug intake. The baseline FEV1 was the average FEV1 recorded on Day 1 at 45 and 10 minutes prior to study intake.
Time frame: Day 1
Change From Baseline in Asthma Control Questionnaire (ACQ) Total Score on Day 42
ACQ-7 allows identification of the adequacy of asthma control in individual patients. The first 6 items of the questionnaire refer to symptoms and rescue use in the previous 7 days (patients were asked to recall how their asthma was during the previous week and to respond to the symptom and bronchodilator use questions on a 7-point scale with 0 = no impairment and 6 = maximum impairment); the 7th item relates to FEV1 (completed by the clinical staff), used the value of FEV1 % of predicted when reversibility was met at screening (Week -2) and considering the pre-dose FEV1 % of predicted taken at -15 minutes at the visit. The 7th item ranges as well from 0 (best value) to 6 (worst value). The questions are equally weighted and the ACQ total score is the mean of the 7 questions and therefore between 0 (asthma totally controlled) and 6 (asthma severely uncontrolled).
Time frame: Day 42
Change From Baseline in Pre-dose FVC on Day 14
FVC=Forced vital Capacity Pre-dose FVC was recorded on Day 14 at 45 minutes and 10 minutes prior to study drug intake.
Time frame: Day 14
Change From Baseline in Pre-dose FVC on Day 42
FVC=Forced Vital Capacity. Pre-dose FVC was recorded on Day 42 at 45 minutes and 10 minutes prior to study drug intake.
Time frame: Day 42
Change From Baseline in Peak FVC on Day 1
The peak FVC is the maximum FVC value obtained between 15 minutes and 12 hours post-dose. Post-dose FVC on Day 1 of each treatment period was recorded at 15'; 30'; 45'; 1h; 2h; 3h, 4h,6h, 8h, 11h30 and 12h post-study drug intake. Baseline is the average of the FVC pre-dose measurements on Day 1 of each period (recorded at 45 and 10 minuted prior to study drug intake).
Time frame: Day 1
Change From Baseline in Peak FVC on Day 42
The peak FVC is the maximum FVC value obtained between 15 minutes and 12 hours post-dose. Post-dose FVC on Day 1 of each treatment period was recorded at 15'; 30'; 45'; 1h; 2h; 3h, 4h,6h, 8h, 11h30 and 12h post-study drug intake. Baseline is the average of the FVC pre-dose measurements on Day 1 of each period (recorded at 45 and 10 minuted prior to study drug intake).
Time frame: Day 42
Change From Baseline in Forced Vital Capacity (FVC) 12h Post-dose on Day 1
The baseline FVC is the mean of the pre-dose measurements recorded on Day 1 of each treatment period. Post-dose FVC was recorded at 15'; 30'; 45'; 1h; 2h; 3h, 4h,6h, 8h, 11h30 and 12h post-study drug intake on Day 1. Only change from baseline at the last timepoint (12h post-dose) on Day 1 is reported in the system.
Time frame: 12h post-dose on Day 1
Change From Baseline in Forced Vital Capacity (FVC) at 2h Post-dose on Day 14
The baseline FVC is the mean of the pre-dose measurements recorded on Day 1 of each treatment period. Post-dose FVC was recorded at 2h on Day 14.
Time frame: 2h Post-dose on Day 14
Secondary: Change From Baseline in Forced Vital Capacity (FVC) 12h Post-dose on Day 42
The baseline FVC is the mean of the pre-dose measurements recorded on Day 1 of each treatment period. Post-dose FVC was recorded at 15'; 30'; 45'; 1h; 2h; 3h, 4h,6h, 8h, 11h30 and 12h post-study drug intake on Day 42. Only change from baseline at the last timepoint (12h post-dose) on Day 42 is reported in the system.
Time frame: 12h post-dose on Day 42
Mean Changes From Baseline in FEV1 Percentage of Predicted Normal Value 12h Post-dose on Day 1
Baseline is the average of the pre-dose measurements of FEV1 Percentage of Predicted Normal Value. Measurements were done: 15 min, 30 min, 45 min, 1h, 2h, 3h, 4h, 6h, 8h, 11h and 30 min, 12h post-dose on Day 1. Only data about the change from baseline at the last timepoint (12h post-dose) of the Day 1 are reported in the database.
Time frame: 12h post-dose on Day 1
Mean Changes From Baseline in FEV1 Percentage of Predicted Normal Value 2h Post-dose on Day 14
Baseline is the average of the pre-dose measurements of FEV1 Percentage of Predicted Normal Value. Measurements were done 2h post-dose on Day 14. Only the change from baseline (not the actual value) is reported in the database.
Time frame: 2h post-dose on Day 14
Mean Changes From Baseline in FEV1 Percentage of Predicted Normal Value 12h Post-dose on Day 42
Baseline is the average of the pre-dose measurements of FEV1 Percentage of Predicted Normal Value. Measurements were done: 15 min, 30 min, 45 min, 1h, 2h, 3h, 4h, 6h, 8h, 11h and 30 min, 12h postdose on Day 42. Only data about the change from baseline at the last timepoint (12h post-dose) of the Day 42 are reported in the database.
Time frame: 12h post-dose on Day 42
Average Daily Morning Peak Expiratory Flow (PEF)
PEF (L/min) was monitored by patients at home, twice daily using a portable e-peak flow meter, before the intake of the run-in medication or study medication: in the morning (between 7:00 am and 9:00 am) and in the evening (7:00 pm and 9:00 pm). An alarm reminded the patients to perform measurements. During each measure, 3 blows were performed and data recorded in the device. Average Daily PEF morning is the mean value of all morning measurements of Peak Expiratory Flow (PEF) = Σ all morning measurements of PEF / number of days with available data
Time frame: From run-in (weeks 0-2±2 days) throughout the three treatment periods (Weeks 2-8, Weeks 9-15, and Weeks 16-22)
Average Daily Evening Peak Expiratory Flow (PEF)
PEF (L/min) was monitored by patients at home, twice daily using a portable e-peak flow meter, before the intake of the run-in medication or study medication: in the morning (between 7:00 am and 9:00 am) and in the evening (7:00 pm and 9:00 pm). An alarm reminded the patients to perform measurements. During each measure, 3 blows were performed and data recorded in the device. Average Daily PEF evening is the mean of all evening measurements of Peak Expiratory Flow (PEF) = Σ all evening measurements of PEF / number of days with available data
Time frame: From run-in (weeks 0-2±2 days) throughout the three treatment periods (Weeks 2-8, Weeks 9-15, and Weeks 16-22)
Total Average Daily Asthma Symptoms, Morning
Asthma symptoms (cough, wheeze, chest tightness and breathlessness) were recorded, always before PEF measurements, twice daily - morning and evening - through the \[ as follows: Morning (nighttime) asthma symptom score (ranging 0-3, where the lower the score the better the outcome): 0=No symptom 1. Mild: symptoms not causing awakening 2. Moderate: discomfort causing awakenings 3. Severe: causing awakenings for most of the night / don't allow to sleep at all. The average score of each symptom is the mean value of all measurements. Total average Daily Asthma Symptoms score nighttime = Σ \[Cough nighttime score + Wheeze nighttime score + Chest Tightness nighttime score + Breathlessness nighttime score\] / Number of days with available data. The average of nighttime asthma symptoms is the mean value of all nighttime measurements, ranging from 0 (no symptoms) to 12 (maximum severity). The lower the score, the better the symptom.
Time frame: Daily, from Screening Visit (V1, week 0) till end of the third treatment period (V10, week 22)
Average Total Daily Asthma Symptoms, Evening
Asthma symptoms (cough, wheeze, chest tightness and breathlessness) were recorded, always before PEF measurements, twice daily - morning and evening - on the ediary as follows: Evening (daytime) asthma symptom score (ranging 0-3, where the lower the score the better the outcome): 0=No symptom 1. Mild: symptoms which can be easily tolerated 2. Moderate: discomfort causing interference with daily activity 3. Severe: incapacitating with inability to work/take part in usual activity. The average score of each symptom is the mean value of all measurements. Total average Daily Asthma Symptoms score daytime = Σ \[Cough daytime score + Wheeze daytime score + Chest Tightness daytime score + Breathlessness daytime score\] / Number of days with available data. The average of daytime asthma symptoms is the mean value of all daytime measurements, ranging from 0 (no symptoms) to 12 (maximum severity). The lower the score, the better the symptom.
Time frame: From Screening Visit (V1, week 0) till end of the third treatment period (V10, week 22)
Percentage of Asthma Control Days During the Treatment Period
The percentage is calculated as the number of asthma control days / number of days with available data. If there are less than 20 non-missing values, the percentage of control days was considered missing. "Asthma control day", derived from patient diary data, is defined as any day during the treatment period that fulfils criteria: 1. Days with a total asthma score of 0; 2. No rescue medication use. The adjusted mean percentage (of asthma control days) is reported.
Time frame: Between V1 (D1) and V3 (D42) of the 6-week treatment period
Average Use of Rescue Medication (Number of Puffs/Day)
The average use of rescue medication (number of puffs per day) is determined as the total number of puffs of rescue mediation taken / number of days with available data.
Time frame: Daily during run-in/wash-out & treatment periods (from V1 [week 0] to V10 [week 22])
Average Use of Rescue Medication (Number of Times/Day)
The average use of rescue medication (number of times per day) is determined as the total number of times of rescue medication taken/ number of days with available data.
Time frame: Daily during run-in/wash-out & treatment periods (from V1 [week 0] to V10 [week 22])
Number of Participants With at Least One Adverse Event (TEAE) or Adverse Drug Reaction (ADR)
AE=An untoward medical occurrence after exposure to a medicine, which is not necessarily caused by that medicine. Serious AE= An adverse event that results in death, is life-threatening, requires hospitalisation or prolongation of existing hospitalisation, results in persistent or significant disability or incapacity, or is a birth defect. ADR=A response to a medicinal product which is harmful and unintended. Response in this context means that a causal relationship between the medicinal product and an adverse event is at least a reasonable possibility Serious ADR=An adverse reaction that results in death, is life-threatening, requires hospitalisation or prolongation of existing hospitalisation, results in persistent or significant disability or incapacity, or is a birth defect. Severe AE= "Severe" refers to the intensity of an AE; the event itself may be of relatively minor medical significance but intense.
Time frame: Throughout the study up to Week 24 (end of study)
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Sofia, Bulgaria
Chiesi Clinical Trial Site 0110
Sofia, Bulgaria
Chiesi Clinical Trial Site 0109
Sofia, Bulgaria
Chiesi Clinical Trial Site 0103
Stara Zagora, Bulgaria
Chiesi Clinical Trial Site 0104
Troyan Municipality, Bulgaria
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