Comparative Pharmacology
Head-to-head clinical analysis: ASMANEX TWISTHALER versus XHANCE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ASMANEX TWISTHALER versus XHANCE.
ASMANEX TWISTHALER vs XHANCE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Corticosteroid that binds to the glucocorticoid receptor, leading to inhibition of inflammatory mediators (e.g., cytokines, chemokines, adhesion molecules) and suppression of inflammatory cell migration and activation in the airways.
XHANCE (fluticasone propionate) is an anti-inflammatory corticosteroid that inhibits multiple inflammatory cell types and mediators (e.g., histamine, leukotrienes, cytokines) involved in nasal and sinus inflammation. It reduces nasal polyp size and nasal congestion.
Inhalation: 1-2 inhalations twice daily (morning and evening). Typical adult dose: 200-400 mcg twice daily. Maximum: 800 mcg/day.
1 spray (93 mcg fluticasone propionate) per nostril twice daily (total daily dose 372 mcg). Intranasal route.
None Documented
None Documented
The terminal elimination half-life of mometasone furoate following inhalation via ASMANEX TWISTHALER is approximately 5 hours (range 4–6 hours) in patients with asthma. This relatively short half-life supports twice-daily or once-daily dosing with sustained clinical effect due to prolonged local retention in the lungs.
Terminal half-life is approximately 2-3 hours; short half-life supports twice-daily dosing for sustained local effect.
Following oral inhalation, the absorbed fraction of mometasone furoate is extensively metabolized in the liver via CYP3A4. Unchanged drug and metabolites are excreted primarily in the feces via biliary elimination (approximately 74% of a single oral dose) and to a minor extent in the urine (approximately 8%). For inhaled doses, renal excretion of unchanged drug is negligible (<1% of administered dose).
Primarily hepatic metabolism; renal excretion of metabolites accounts for <10% of the dose as unchanged drug; fecal excretion is minimal.
Category C
Category C
Corticosteroid, Inhaled
Corticosteroid