New Study Investigates Sinus Surgery Outcomes Using Steroid-Eluting Spacer

Purveyor of the Vent-Os™ sinus dilation system, SinuSys Corporation is to commence a new clinical trial of its proprietary drug-eluting spacer, infused with steroids for use following functional endoscopic sinus surgery (FESS). The device is designed to steadily and predictably deliver the drug over a seven-day period before removal.

Background

Scarring in the sinus – or synechiae formation – is the most common complication after surgery, occurring in four to 35 percent of the more than five million FESS cases performed annually in the U.S. Scarring has been shown to impair ventilation and FESS outcomes.

Traditional spacers are only partially successful in promoting healing and preventing scarring, while drug-eluting stents deliver steroids in a bolus dose that does not continue through the healing process.

The SinuSys spacer is designed to have the potential to mitigate systemic use of steroids, which has been shown to be a health risk for patients. It is made from a material called a “rate-controlled membrane,” which is designed to protect the steroid within from fluids in the sinus environment, eliminating the bolus dose of steroid often seen with polymer or biofilm.

The double-blind randomized trial will study the investigational SinuSys technology in 48 patients with chronic rhinosinusitis. The study will compare the SinuSys technology with the current standard of care (silastic spacers) and will be evaluated at 7, 35 and 90 days.

Primary endpoints of the trial are a reduction in post-operative interventions and use of steroids. Secondary endpoints include the incidence of scarring, inflammation and other outcomes measurements, including the deliciously named SNOT (Sino-Nasal Outcome Test) 22, and Philpott- Javer and Lund-Kennedy scores.

The trial is sponsored by St. Paul’s Sinus Center in British Columbia, with Amin Javer, MD FRCSC FARS, Director of the St. Paul’s Sinus Centre and Assistant Clinical Professor at the University of British Columbia serving as principal investigator.

A U.S. pivotal trial is planned following the conclusion of the trial.

Investigator comments

Dr. Javer stated; “There is a clinical need for a spacer that delivers a therapeutic agent predictably over a longer period of time than is currently available. This new technology shows promise in doing that, with the ultimate goal of improving patient outcomes after FESS.”

Company comments

“While this study is adjunctive to surgery, the technology offers the potential to serve as a stand-alone procedure for virtually any patient requiring steroids,” said SinuSys Chief Executive Officer Thomas Schreck. “This drug-infused device is designed to amplify the benefits of FESS and was developed based on the company’s many years of institutional experience working with drug delivery technology.”

Source: SinuSys Corporation

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