Growth Velocity Reduced with Once-Daily Fluticasone Furoate Nasal Spray in Prepubescent Children with Perennial Allergic Rhinitis

Background The effect of fluticasone furoate nasal spray (FFNS) on growth in prepubescent children has not been evaluated. Objective To characterize the difference in mean prepubescent growth velocities, as determined by stadiometry, between patients treated continuously for 1 year with FFNS 110 mcg once daily and placebo nasal spray. Methods This was a multicenter, randomized, double-blind, placebo-controlled, parallel-group 76-week safety study. Nasal symptom assessments were used as a measure of adherence. Eligible patients were ages 5 to Results One hundred eighty-six patients in the FFNS group and 187 patients in the placebo group completed the entire 52-week treatment period. During treatment, the least squares mean growth velocity was 5.19 cm/y for the FFNS group and 5.46 cm/y for the placebo group; mean difference, −0.270 cm/y (95% CI, −0.48 to −0.06 cm/y). Other safety assessments, including 24-hour urinary cortisol excretion, were comparable between the treatment groups. Daily reflective total nasal symptom scores declined similarly in both the FFNS and placebo groups. Conclusion Once-daily treatment with FFNS over 52 weeks in prepubescent children resulted in a small reduction in growth velocity compared with placebo. Clinicians will need to balance the reduction in growth observed with FFNS to its potential for clinical benefit.