NCT05156801

Efficacy of ArchSinus, NasoPore & Propel to Prevent Post-Surgical MT Lateralization and Improve Symptomatic Outcomes

Efficacy of the ArchSinus, NasoPore and the Propel Stent in Preventing Post-Surgical Middle Turbinate Lateralization and Improving the Symptomatic Outcomes; Randomized, Blinded, Comparative Study

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 50 (estimated)
• Sponsor: STS Medical · Industry
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This is a multi-center, randomized, single-blinded comparative 3-arm clinical study. This clinical study is designed to compare the efficacy of the ArchSinus stent to the Propel stent (Intersect ENT), and to NasoPore (Stryker) in preventing post-FESS middle turbinate lateralization 3 weeks, 6 weeks, 3 months and 12 months post FESS.

Detailed description

50 chronic rhinosinusitis patients, that met the inclusion criteria will undergo bilateral FESS and subsequent bilateral placement of the ArchSinus into the randomized ethmoid sinus cavity and NasoPore / Propel into the other ethmoid sinus cavity. Comparative treatment sides will be randomly assigned; 50 sinuses treated with ArchSinus stent, 25 sinus treated with Propel stent, 25 sinuses treated with Nasopore. Standard Propel implant and 4cm whole NasoPore will be used. ArchSinus stent will be removed 2 weeks (13-15 days) post FESS. Propel will be removed as necessary 2 weeks (13-15 days) post FESS. NasoPore arm will be debrided as necessary 2 weeks (13-15 days) post-FESS. Prior to removal / debridement procedures, the patients will be blindfolded, to keep them blinded for the treatment type on each side of their nose. All patients will be followed up at 2, 6 and 12 weeks and 12 months post FESS and examined endoscopically. The endoscopic videos will be analyzed by independent pannel of 3 ENT surgeons, blinded to the treatment type, to assess middle turbinate lateralization on a 4-point scale. CT scan will be performed pre-FESS and 12 weeks after the operation, to assess middle turbinate lateralization, as demonstrated by percent change in middle meatus (MM) area pre-FESS and 12 weeks after the surgery. Inflammatory mucosal thickening will be quantified using the Zinreich staging system. CT scans will be analyzed blindly by Medical Metrics Inc. Symptomatic improvement will be analyzed weekly within 3 months follow up, using Side-specific Nasal SNOT-22 questioner. Patient symptomatic relief during the implantation time will be analyzed 2 weeks post FESS, with Side-specific Nasal SNOT-22 questioner.

Conditions

• Chronic Sinusitis

Interventions

Type	Name	Description
DEVICE	ArchSinus stent	Post FESS unilateral placement of the ArchSinus stent into the randomized ethmoid sinus cavity.

Timeline

• Start date: 2022-03-01
• Primary completion: 2023-01-01
• Completion: 2023-10-01
• First posted: 2021-12-14
• Last updated: 2021-12-14