Abstract
Chronic rhinosinusitis is a high prevalence chronic inflammatory disease that involves nasal mucosa and paranasal sinuses. Immunoglobulin E is an inflammatory mediator that plays an etiopathogenic role in this condition, so omalizumab, an anti-immunoglobulin E monoclonal antibody, might be a therapeutic alternative. We searched in Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others. We extracted data from the systematic reviews, reanalyzed data of primary studies, conducted a meta-analysis and generated a summary of findings table using the GRADE approach. We identified five systematic reviews that included five primary studies overall, of which two correspond to randomized trials. We concluded it is not clear whether omalizumab leads to an improvement in the nasal polyps scale, quality of life, general well-being or nasal symptoms in patients with chronic rhinosinusitis, because the certainty of the evidence is very low. On the other hand, omalizumab is probably associated with frequent adverse effects.
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