Tolerability of Hypertonic Saline in Infants With Cystic Fibrosis

Status Completed

Clinical Trial Summary

The objective of the study is to determine whether or not inhalation of hypertonic saline will be tolerated by infants with cystic fibrosis and the effect of inhalation on their lung function.

Clinical Trial Description

Cystic fibrosis lung disease is characterized by mucous retention which favors secondary bacterial infection and inflammation, which leads to lung damage and ultimately respiratory failure. Classically, therapeutic interventions are aimed to improve mucociliary clearance, to reduce both bacterial load and lower airway inflammation.

Hypertonic saline (HS) has been used for the induction of sputum production in all age groups to obtain secretions from the lower respiratory for diagnostic purposes. Hypertonic saline is also used in older children with CF, who do not produce sputum spontaneously, to obtain representative samples for microbiology.

There is evidence from studies in patients with cystic fibrosis that HS can improve mucociliary clearance. The improvement was more impressive in areas that were well ventilated, making it likely that HS will work better in patients with relatively preserved pulmonary function. Newer evidence also suggests that the osmotic effect on the airway surface that was expected to be short lived, may actually persist for longer time periods (up to 8 hours). All these data indicate that HS may be a useful agent in the treatment of CF patients.

As the effect on mucociliary clearance was found to be better in areas with adequate ventilation, it is logical to assume that treatment with HS may be most efficacious when initiated early in the disease process. So far, no data on the tolerability of inhalation of HS are available for infants with cystic fibrosis. However, evidence from infants with AIDS as well as recent studies in infants with bronchiolitis suggest that hypertonic saline can be safely administered by inhalation in infants. Nevertheless, proof of tolerability in CF infants is a prerequisite for longer term studies of HS in this age group. In older children, tolerability has been tested by measuring pulmonary function both before and after inhalation of HS saline. Similar data are not yet available for infants. ;

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00753987
Study type	Interventional
Source	The Hospital for Sick Children
Contact
Status	Completed
Phase	Phase 1
Start date	March 2006
Completion date	January 2007

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.