3 Clinical Trials for Various Conditions
The goal of this observational study is to learn what can predict the return of the sense of smell in patients with chronic rhinosinusitis with nasal polyps being treated with dupilumab. The main questions it aims to answer are: 1. Does obstruction of the olfactory cleft predict return of the sense of smell? 2. Do electrophysiological signals generated by breathing and sniffing behavior predict return of the sense of smell? Participants starting dupilumab will undergo assessment for their degree of olfactory cleft obstruction, and an electrophysiologic assessment of their olfactory cleft and be followed over 6 months of treatment with dupilumab.
Primary Objective: To evaluate the efficacy of dupilumab 300 milligram (mg) every 2 weeks (q2w) compared to placebo on a background of mometasone furoate nasal spray (MFNS) in reducing nasal congestion/obstruction (NC) severity and endoscopic nasal polyp score (NPS) in participants with bilateral nasal polyposis (NP). In addition for Japan participants, reduction in computed tomography (CT) scan opacification of the sinuses was a coprimary objective. Secondary Objectives: * To evaluate the efficacy of dupilumab in improving total symptoms score (TSS). * To evaluate the efficacy of dupilumab in improving sense of smell. * To evaluate the efficacy of dupilumab in reducing CT scan opacification of the sinuses (primary objective for Japan). * To evaluate ability of dupilumab in reducing proportion of participants requiring treatment with systemic corticosteroids or NP surgery. * To evaluate the effect of dupilumab on participant reported outcomes and health related quality of life outcome by sinonasal outcome test-22 (SNOT-22). * To evaluate the effect of dupilumab in the subgroups of participants with prior surgery and co-morbid asthma (including non-steroid antiinflammatory drug \[NSAID\] exacerbated respiratory disease \[ERD\]). * To evaluate residual effect in follow up. * To evaluate the safety of dupilumab in participants with bilateral NP. * To evaluate functional dupilumab concentrations (systemic exposure) and incidence of treatment-emergent anti-drug antibodies.
Primary Objective: To evaluate the efficacy of dupilumab 300 mg every 2 weeks (q2w) compared to placebo on a background of mometasone furoate nasal spray (MFNS) in reducing nasal congestion (NC)/obstruction severity and endoscopic nasal polyp score (NPS) in participants with bilateral nasal polyps (NP). In addition for Japanese participants, reduction in computed tomography (CT) scan opacification of the sinuses was a co-primary objective. Secondary Objectives: * To evaluate the efficacy of dupilumab in improving total symptoms score. * To evaluate the efficacy of dupilumab in improving sense of smell. * To evaluate the efficacy of dupilumab in reducing CT scan opacification of the sinuses (primary objective for Japanese participants). * To evaluate ability of dupilumab in reducing proportion of participants who required treatment with systemic corticosteroids (SCS) or surgery for NP. * To evaluate the effect of dupilumab on participant reported outcomes and health related quality of life. * To evaluate the efficacy of dupilumab 300 mg q2w up to Week 52. * To evaluate the efficacy of dupilumab 300 mg q2w up to Week 24 followed by 300 mg every 4 weeks (q4w) up to Week 52. * To evaluate the effect of dupilumab in the subgroups of participants with prior surgery and comorbid asthma including non-steroid anti-inflammatory drug exacerbated respiratory disease. * To evaluate the safety of dupilumab in participants with bilateral NP. * To evaluate functional dupilumab concentrations (systemic exposure) and incidence of treatment emergent anti-drug antibodies.