Cystic Fibrosis (CF)
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: The criteria of inclusion will be the following: - Age between 6 and 18 years old; - Diagnosis of CF confirmed by sweat-test and/or DNA analysis and/or electro physiology testing (nasal potential difference measurement); - Routine treatment with rhDNase once daily, started at least one month before enrolment in the study; - Stable condition, in this study defined as: condition of patient judged to be stable by the treating physician AND no i.v antibiotics (hospital or at home) in the previous month and constant medication regime during the previous 2 weeks (for example: no additional antibiotics course, no newly started inhaled or systemic corticosteroids etc). - Ability to perform lung function tests (assessed by trained lung function technician); - Lung function: FVC > 40% predicted; - Signed written informed consent.
Exclusion criteria
Exclusion criteria: The following exclusion criteria will be used: - Inability to follow instructions of the investigator; - Inability to inhale rhDNase; - Concomitant medical conditions that effect inhaled treatment (e.g. cleft palate, severe malacia); - Current respiratory tract infection; - Pulmonary complications that might put the patient at risk to participate in the study; - Neuromuscular disease; - Poor compliance with treatment as assessed by the patient*s paediatrician; - Active ABPA (allergic bronchopulmonary aspergillosis) defined as an oral course of prednisone for ABPA within the last three months.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary endpoint will be the change in FEF75 compared to baseline after one month of treatment. FEF75 is the most suitable endpoint since it is sensitive to peripheral airways obstruction. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary endpoints will include: Lung clearance index (LCI) measurements as assessed by multiple breath washout; Other values obtained in the flow volume curve: MMEF25-75, FEV1, FVC. Other study parameters, such as use of antibiotics and number of exacerbations (if applicable) | — |
Countries
Netherlands