A randomized, double-blind, placebo- -controlled study to investigate the use of bacteriophages in patients with chronic rhinosinusitis with nasal polyps.

Background A randomized, double-blind placebo-controlled study investigated the use of bacteriophages in the treatment of chronic rhinosinusitis with nasal polyps. Materials and Methods 40 adult patients with сhronic rhinosinusitis with nasal polyps were examined. All patients underwent functional endoscopic sinus surgery.