Bronchiolitis obliterans syndrome after hematopoietic cell transplantation is a rare complication with high morbidity and mortality

This is a single-arm, multicenter phase II study of 36 patients with newly diagnosed bronchiolitis obliterans syndrome treated with fluticasone propionate, azithromycin, and montelukast

Fluticasone propionate, azithromycin, and montelukast was well tolerated

Fluticasone propionate, azithromycin, and montelukast with steroid pulse is associated with stable lung function and improved functional and patient-reported outcomes for most newly diagnosed patients with bronchiolitis obliterans syndrome