E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Chronic cough is a common and poorly diagnosed condition. Younger patients tend to receive a diagnosis of asthma, whereas older patients are increasingly identified has having gastroesophageal reflux disease. Those patients presenting with upper airway symptoms are frequently labelled as having rhinitis. A considerable proportion of patients elude a diagnosis, either through testing or by the use of therapeutic trials and are then labelled as idiopathic cough. |
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E.1.1.1 | Medical condition in easily understood language |
Chronic cough is a common and poorly diagnosed condition. There are different causes of chronic cough the most common causes are asthma, postnasal drip and gastro-oesophageal reflux. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Respiratory Tract Diseases [C08] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The primary objective of this study is to determine the difference in 24 hr cough counts measured using the Hull Automated Cough Counter (HACC), from baseline and after two weeks and four weeks treatment with either montelukast or prednisolone followed by montelukast in patients with FeNO≥30 ppb at screening or montelukast in patients with normal NO measurement of ≤20 ppb.
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E.2.2 | Secondary objectives of the trial |
Secondary end points: compare changes in patients cough reflex sensitivity using inhaled citric acid between high FeNO treatment groups and normal FeNO treatment group at baseline and after 2 weeks and 4 weeks treatment. Furthermore, to compare subjective measures of cough as demonstrated by Hull Airways Reflux Questionnaire (HARQ) and Leicester Cough Questionnaire before treatment and in second and fourth weeks of treatment between high FeNO treatment groups and normal FeNO treatment group. Evaluate changes in the sputum inflammatory cells to determine whether inflammatory markers present prior to therapy has an influence on the effectiveness of montelukast or prednisolone to treat chronic cough. Assess whether previous history of blood eosinophils may predict therapeutic response to anti-inflammatory medication in cough. At the end of the study we will look retrospectively at the Assess whether the efficiency of FeNO may help to predict therapeutic response to anti-inflammatory |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Subjects must meet all of the following inclusion criteria to be eligible for participation in this study.
• Patients with a history of chronic cough (at least 8 weeks duration) • Male and female subjects of at least 18 yrs of age • Subjects able to understand the study and co-operate with the study procedures • Subjects who consent to their general practitioner (GP) being informed of their study participation. • Patients with a FeNO≥30ppb at presentation to the Chronic cough clinic.( required for entry on to the high FeNO treatment groups) • Patients with FeNO≤20 ppb at presentation to the chronic cough clinic (required for entry as a normal FeNO treatment group)
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E.4 | Principal exclusion criteria |
• Patients with current diagnosis of asthma. • Female subjects who are pregnant, or lactating, or who are of child bearing potential but are not using contraceptive measures • Suffering from any concomitant disease (chronic heart, chronic lung such as; COPD, bronchiectasis and cystic fibrosis, chronic renal, chronic liver or neuromuscular disease or immunosuppression; pneumonia and diabetes) which may interfere with study procedures or evaluation. • A lower respiratory tract infection 4 weeks prior to entry on to study • Systemic infections • Live virus immunisation planned within next 3 months • Subjects with no previous chickenpox who had a recent (<=28 days) close personal contact with chickenpox OR herpes zoster (high FeNO treatment groups only) • Subjects having recent (<=28 days) exposure to measles (high FeNO treatment groups only) • Participation in another study (use of investigational product) within 30 days preceding entry on to study. • Alcohol or drug abuse • Inability to follow study procedures • Regular use of corticosteroids either as inhaled, topical or systemic ≥ 4 weeks prior to enrolment . Subjects who are taking bronchodilators should be on it for at least 4 weeks on regular dose and carry on the same dose during the study • Subjects with known allergy to prednisolone • Subjects who are taking Angiotensin Converting Enzymes (ACE) inhibitors. • Current smoker
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary outcome is measure number of cough, as demonstrated by Hull Airways Cough counts at the baseline, after 2 and 4 weeks treatment; with either montelukast or prednisolone followed by montelukast in patients with FeNO≥30 ppb or montelukast in patients with normal NO measurement of ≤20 ppb between three treatment groups. Cough data will be normalised using log transformation this will allow us to use parametric test to analysis the data. ANCOVA test will be use to compare changes in the number of coughs. |
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E.5.2 | Secondary end point(s) |
• Compare change in subjective measures on HARQ questionnaire and LCQ of cough between high FeNO treatment groups and normal FeNO treatment group at the baseline, after 14 days and 28 days treatment. Changes will be measured by using ANCOVA where p<0.05 will be significant. • Change in FVC % predicted from baseline will be expressed as mean (SD) and compared between the high FeNO treatment groups and normal FeNO treatment group at the baseline, after 14 days and 28 days treatment using ANCOVA. • Change in Sputum inflammatory cells – inflammatory cell total and differential counts (% neutrophils, eosinophils, macrophages, epithelial cells and lymphocytes) in sputum samples will be measured at baseline before treatment and after 14 days and 28 days treatment in all groups. Results will be expressed as mean (SEM). For non-parametric data these will be log transformed and expressed as geometric mean (log SEM). Changes in these parameters from baseline will be measured using ANCOVA where p<0.05 will be considered significant. • Change in cough reflex sensitivity using inhaled citric acid in treatment groups and control group high FeNO treatment groups and normal FeNO treatment group at the baseline and after 2 weeks and 4 weeks treatment. Changes will be measured by using ANCOVA where p<0.05 will be significant. • Assess whether the blood eosinophils may predict therapeutic response to anti-inflammatory medication in cough [5]. • Assess whether the efficiency of FeNO will help to predict therapeutic response to anti inflammatory medication in cough.
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | Yes |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | No |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 3 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.4.1 | Number of sites anticipated in Member State concerned | 1 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 11 |
E.8.9.1 | In the Member State concerned days | 26 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 5 |
E.8.9.2 | In all countries concerned by the trial days | 7 |