The PIO II Study: In-office Post-op Placement of a Steroid-eluting Sinus Implant

The PIO II Study: A Randomized, Controlled, Blinded Trial to Evaluate the Safety and Efficacy of In-office Placement of a Steroid-eluting Sinus Implant Post-ethmoidectomy

Randomized, controlled, blinded clinical trial with 40 patients randomized in a 1:1 ratio to either treatment (bilateral in-office placement of a drug-eluting implant in the ethmoid sinuses following ethmoidectomy) or control (post-op standard of care) group and followed for 6 months.

This prospective, randomized, controlled, blinded trial aimed to assess the efficacy of a drug-eluting sinus implant placed following ethmoidectomy in addition to post-op standard of care, including debridement, irrigation, and topical steroids, compared to the same standard of care alone (control). Patients returned for follow-up examination at 2 weeks and again at 1, 3 and 6 months after placement. Follow-up examination consisted of patient-reported outcomes and endoscopic grading by clinical investigators and an independent sinus surgeon based on a centralized, blinded video-endoscopy review.

Inclusion Criteria:

• Confirmed diagnosis of chronic rhinosinusitis, defined by the AAO-HNS 2015 guidelines, including presence of bilateral ethmoid disease.
• ESS including bilateral ethmoidectomy with middle meatal antrostomy within 7 days prior to scheduled implant placement. Concurrent septoplasty and surgical treatment of the other paranasal sinuses also permitted.

Exclusion Criteria:

• Known history of intolerance to corticosteroids or an oral steroid-dependent condition.
• Known history of immune deficiency, insulin-dependent diabetes, cataracts, or glaucoma