early-onset dupilumab effects in crswnp

Conditions: Chronic Rhinosinusitis With Nasal Polyps

Summary: while it is known that dupilumab has profound effects in patients with crswnp, these are often seen months later after treatment initiation; however, in practice, patients often endorse feeling significantly better within days of their first injection. no studies have investigated the molecular basis for such an acute change. this study proposes that specific cytokine changes in phenotype in addition to microbiome and oscillometry effects play a synergistic role in producing this effect.

this is a single center, prospective, controlled pilot study investigating the acute-onset changes across multiple parameters from immunology to microbiome and pulmonary physiology in patients with crswnp after receiving initial doses of dupilumab therapy. in total, eligible participants will be enrolled in the study for a total of 3 weeks, during which they will receive two injections of 300 mg of dupilumab. there will be a total of 8 study visits with the 1st visit being a 1-month pre-intervention baseline allowing each patient to serve as independent controls. the next seven visits will be at the following time points: day of the 1st injection, 24-hrs after the first injection, 48 hrs after the first injection, one week after the first injection, two weeks after the first injection prior to receiving the second injection, 24hrs after receiving the 2nd injection and the 3-week timepoint (1 week after the second injection). at each visit, patients will be screened for side effects and nasal endoscopy will be performed as well as collection of nasal secretions via sinus packings that are placed in both nares for five minutes. the packings will subsequently be removed and per the collection protocol will undergo centrifugation, aliquoting and storage in a -80 freezer for future cytokine analysis via elisa assays for various cytokine markers of type 2 inflammation, neutrophil activity, and mucin type. at specific visits, additional measures will be collected including staph aureus swabs for qpcr and cell culture, snot-22 surveys and smell testing, and oscillometry.

Eligibility criteria:
inclusion criteria: * patients age 18+ * who in normal clinical practice would be a candidate for dupilumab. * with a diagnosis of crswnp including * at least 2 of the following symptoms on screening: * nasal blockade/obstruction/congestion or nasal discharge; * facial pain/pressure; * reduction or loss of smell exclusion criteria: * \> 80 years of age * prior history of immunotherapy use (including prior participation in dupilumab or other clinical trials) * treatment with systemic corticosteroids, monoclonal antibodies, immunosuppressive treatments or anti-ige therapy during the past two months prior to trial participation. * crs without polyps or another non-nasal polyposis condition * patients with conditions/concomitant diseases making them ineligible for evaluation of the primary efficacy endpoint such as: acute sinusitis/nasal infection or upper respiratory infection at day of screening or in the two weeks prior to screening, churg-strauss syndrome, young's syndrome, kartagener's syndrome or dyskinetic ciliary syndromes, concomitant cystic fibrosis, ct scan suggestive of allergic fungal rhinosinusitis * patients with comorbid asthma if they had a recent asthma exacerbation requiring systemic (oral and/or parenteral) steroid treatment or hospitalization for \>24h for treatment of asthma, within 3 months prior to screening or are on a dose of greater than 1000 ug fluticasone or an equivalent inhaled corticosteroid.