Sinonasal inhalation of dornase alfa administered by vibrating aerosol to cystic fibrosis patients: a double-blind placebo-controlled cross-over trial. | Read by QxMD (original) (raw)

Journal Article

Randomized Controlled Trial

Research Support, Non-U.S. Gov't

Jochen G Mainz, Claudia Schien, Isabella Schiller, Katja Schädlich, Assen Koitschev, Christiane Koitschev, Joachim Riethmüller, Uta Graepler-Mainka, Bärbel Wiedemann, James F Beck

BACKGROUND: Chronic rhinosinusitis significantly impairs CF patients' quality of life and overall health. The Pari-Sinus™ device delivers vibrating aerosol effectively to paranasal sinuses. After a small pilot study to assess sinonasal inhalation of dornase alfa and placebo (isotonic saline) on potential sinonasal outcome measures, we present the subsequent prospective double-blind placebo-controlled crossover-trial.

METHODS: 23 CF patients were randomised to inhale either dornase alfa or isotonic saline for 28 days with the Pari-Sinus™ and after 28 days (wash-out) crossed over to the alternative treatment. The primary outcome parameter was primary nasal symptom score in the disease-specific quality of life Sino-Nasal Outcome-Test-20 (SNOT-20: nasal obstruction/sneezing/runny nose/thick nasal discharge/reduced smelling).

RESULTS: Primary nasal symptoms improved significantly with dornase alfa compared with no treatment, while small improvements with isotonic saline did not reach significance. SNOT-20 overall scores improved significantly after dornase alfa compared with isotonic saline (p=0.017). Additionally, sinonasal dornase alfa but not isotonic saline significantly improved pulmonary function (FEF75-25: p=0.021).

CONCLUSION: Vibrating sinonasal inhalation of dornase alfa reduces rhinosinusitis symptoms in CF.