About this trial
This is a prospective, multicenter, randomized, controlled, double-blind clinical trial enrolling 300 adult subjects with chronic rhinosinusitis (CRS) with and without nasal polyps (CRSwNP and CRSsNP) indicated for endoscopic sinus surgery (ESS).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Male or female, aged ≥18 years
Confirmed diagnosis of CRS per the 2021 "International Consensus Statement on Allergy and Rhinology: Rhinosinusitis" definition.
Radiographic evidence of bilateral ethmoid disease on CT taken 6 months or less prior to study index procedure and at least 6 months after any prior ESS or nasal surgery, polypectomy, balloon sinus dilation, etc. as applicable
Radiographic evidence of bilateral frontal sinus and/or frontal sinus outflow tract disease
Disqualifiers
Nasal cavity tumor (malignant or benign)
Antrochoanal polyps
Previous complete middle turbinate resection
Clinical evidence or suspicion of invasive fungal sinusitis (e.g., bone erosion on CT scan, necrotic sinus tissue)
Trial design
Parallel
Treatments tested in this trial
Airiver ESSpand DCB
Combination productThe investigational procedure will be ESSpand DCB dilation of all surgically treated sinuses, including the resected ethmoid sinus cavities. Note: Prior to randomization to the investigational procedure, all subjects will undergo traditional ESS of their diseased sinuses.
ESS
Procedure/Surgerytraditional ESS treatment of diseased sinuses.
Treatment groups
Trial outcomes
Primary outcomes
Primary safety
Incidence of major adverse events (MAE) through 30 days post-index treatment.
Primary efficacy endpoint
Reduction in need for postoperative intervention in the ethmoid and /or frontal sinus within 6 months post-index procedure.
Secondary outcomes
Hypothesis tested clinical responder rate at 12 months
a responder is defined as a subject who has not undergone revision ESS, balloon sinus dilation, or any other procedural intervention, or received oral/systemic steroid or biologic therapy for CRS in the follow-up period, and with SNOT-22 score change from baseline (CFBL) by ≥8.9 points
Hypothesis tested mean adhesion/scaring grade of sphenoid sinus at 6 months, as assessed by the independent, blinded reviewer
Grading 0 to 3, the higher grade indicates significant scarring and adhesion
Sponsors and contacts
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