Impact of Nebulized Dornase Alpha on Mechanically Ventilated Patients

Status Completed

Clinical Trial Summary

The investigators hypothesized that dornase alpha, administered twice a day (BID) by in-line nebulizer, would improve oxygenation, compliance, and time to extubation in adult patients receiving mechanical ventilation.

Clinical Trial Description

Background: Lobar or segmental collapse of the lung in mechanically ventilated patients is a relatively common occurrence in the Intensive Care Unit. Available treatments are either labor or time intensive and not highly effective.

Methods: We conducted a randomized, placebo-controlled, double-blind pilot study to determine whether nebulized recombinant human dornase alpha (Pulmozyme, Genentech) improves radiologic and clinical outcomes in ventilated patients with lobar atelectasis. Outcomes of interest were chest radiograph score, oxygenation, lung compliance, and rate of extubation over the first 5 days. The groups consisted of 14 intervention patients and 16 control patients. They were similar with respect to basic demographics, age, gender, and use of therapeutic modalities relating to lung function. Baseline average chest x-ray scores, Pa02/FI02 ratios, and static compliance were not significantly different. Analysis was limited to the first 5 days.

Results: There was a significant improvement in oxygenation for the intervention group at day 5 (p=0.03). There were no significant differences in chest radiograph score, compliance, or rate of extubation. Two patients died in the intervention group, whereas none died in the control group (NS).

Conclusions: These pilot data suggest that inhaled dornase alpha appears to be safe and is associated with improved oxygenation 5 days after initiation of therapy in mechanically ventilated patients compared to placebo. Larger studies are needed to confirm these findings and determine if this intervention decreases ICU morbidity and mortality. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01095276
Study type	Interventional
Source	Rutgers, The State University of New Jersey
Contact
Status	Completed
Phase	N/A
Start date	November 2005
Completion date	January 2006

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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.