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  • Title: The effects of intranasal triamcinolone acetonide and intranasal fluticasone propionate on short-term bone growth and HPA axis in children with allergic rhinitis.
    Author: Skoner DP, Gentile D, Angelini B, Kane R, Birdsall D, Banerji D.
    Journal: Ann Allergy Asthma Immunol; 2003 Jan; 90(1):56-62. PubMed ID: 12546339.
    Abstract:
    OBJECTIVE: The purpose of this study was to evaluate the effects of triamcinolone acetonide (TAA) and fluticasone propionate (FP) aqueous nasal sprays on short-term lower-leg growth velocity and hypothalamic-pituitary-adrenal (HPA-axis function in pediatric subjects. METHODS: In this controlled, double-blinded (TAA) or single-blinded (FP), four-way crossover trial, 59 subjects (mean age: 7.2 years) were randomized to receive each of four 2-week treatments in random order: TAA nasal spray 110 microg, TAA nasal spray 220 microg, FP nasal spray 200 microg, and placebo, administered by a third party once daily with a 2-week washout period between treatments. Lower-leg growth velocity was measured by knemometry, and HPA-axis function was measured using 12-hour overnight urinary cortisol levels. RESULTS: Forty-nine subjects completed all four treatments and were included in the analyses. Mean growth velocity (+/- standard error) was 0.46 (+/- 0.06) mm/week for placebo, 0.37 (+/- 0.06) and 0.31 (+/- 0.06) mm/week for TAA nasal spray 110 and 220 microg, respectively, and 0.37 (+/- 0.06) mm/week for FP nasal spray. The treatment effect on mean growth velocity compared with placebo was -19.6% with TAA 110 microg, -32.6% with TAA 220 microg, and -21.7% with FP; none of these effects was considered statistically or clinically significant according to predefined criteria. No significant differences in changes in urine cortisol/creatinine ratios were observed between TAA 110 microg or 220 microg and placebo (4.38, 3.60, and -0.67, respectively, P > or = 0.157). In contrast, the change in mean urine cortisol/creatinine ratio values for FP (-3.59) were significantly lower compared with TAA 220 microg (P = 0.033) and placebo (P = 0.003). Knemometry exhibited less time-dependent variability than overnight urinary cortisol measurements. CONCLUSIONS: Neither TAA nor FP had a clinically significant effect on lower-leg growth velocity. In contrast to FP, TAA nasal spray did not significantly affect HPA-axis function when used over a 2-week interval.
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