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FFNS has a favourable safety and tolerability profile in patients aged 6-11 years with PAR or SAR.

The objective of this study was to evaluate the efficacy and safety of fluticasone furoate (FF) nasal spray 55 and 110 microg once daily in children with seasonal allergic rhinitis (SAR). Patients (n = 554) received placebo nasal spray or FF, administered using a unique side-actuated device, in a 2-wk, randomized, double-blind study. Symptoms were evaluated by patients using a 4-point categorical scale. Efficacy assessments included reflective and instantaneous total nasal symptom scores (r/iTNSS). Primary analyses were conducted in patients aged 6-11 yr in the intent-to-treat population (ITT); the 2-11 yr group provided supportive analyses. In patients aged 6-11 yr, FF 110 microg once daily significantly improved the daily rTNSS compared with placebo. FF 55 microg once daily was only numerically better for rTNSS and iTNSS. Secondary pre-dose iTNSS and overall response to therapy were significant with FF 110 microg. The significant findings for FF 110 microg were supported by analyses in the entire ITT population of 2-11 yr olds. Both doses of FF were well tolerated. These study results suggest that FF nasal spray administered once daily for 2 wk is well tolerated and effective for the treatment of SAR symptoms in children aged 2-11 yr.

The effects of intranasal corticosteroids (INSs) on the hypothalamic-pituitary-adrenal (HPA) axis should be assessed for any to be marketed INS. The objective of this study was to assess the effects of fluticasone furoate nasal spray (FFNS) on cortisol production (as a measure of HPA axis function) following 6 wk of treatment with FFNS 110 microg once daily (QD) compared with placebo in pediatric patients with perennial allergic rhinitis (PAR). In this double-blind, parallel-group study, patients (n = 112) aged 2-11 yr with a 1-yr history of PAR (6 months for patients aged 2-3 yr) were randomized in a 1:1 ratio to either placebo or FFNS. Serum cortisol (SC) concentrations and urinary cortisol (UC) excretion were measured over a 24-h period at the randomization (baseline) and final treatment (week 6) visits for HPA axis evaluation in a domiciled environment (overnight in the clinic). Plasma samples were collected for FFNS at several time points over the 24 h after the final dose for pharmacokinetic analyses. FFNS was non-inferior to placebo with respect to change from baseline (expressed as a ratio) in 24-h SC weighted mean. The lower limit of the two-sided 95% confidence interval (CI) for the treatment ratio was greater than the pre-specified non-inferiority margin of 0.8 (treatment ratio = 0.97, 95% CI 0.88-1.07). UC excretion over 24 h at baseline and end of treatment was similar between treatment groups; no patients had 24-h excretion levels below normal range after 6 wk of treatment. Plasma concentrations of FFNS were generally non-quantifiable (<10 pg/ml). Results of the current study indicate that FFNS 110 microg QD has no significant effect on HPA axis function in 2- to 11-yr-old pediatric patients with PAR.

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