Efficacy and Safety of LYR-210 for the Treatment of Chronic Rhinosinusitis in Adults (ENLIGHTEN 1)

This is a 52-week, multicenter, phase III, randomized, blinded, controlled, parallel group with a 24-week treatment period followed by a safety extension phase with crossover or continued treatment to evaluate the efficacy and safety of LYR-210 compared with sham control for treatment in adults with CRS.

Inclusion Criteria:

  • Age ≥18
  • Diagnosed as having CRS
  • Undergone at least 2 trials of medical treatments in the past
  • Mean 3 cardinal symptom (3CS) score
  • Bilateral ethmoid disease confirmed on CT
  • Has been informed of the nature of the study and provided written informed consent
  • Agrees to comply with all study requirements

Exclusion Criteria:

  • Inability to tolerate topical anesthesia
  • Previous nasal surgery
  • Presence of nasal polyp grade 2 or higher
  • Seasonal allergic rhinitis
  • Perennial rhinitis with symptoms that are well controlled by regular use of intranasal corticosteroids
  • Severe asthma
  • History or clinical evidence or suspicion of invasive fungal sinusitis, allergic fungal rhinosinusitis, atrophic rhinitis, or odontogenic sinusitis
  • Obstruction preventing proper placement and retention of LYR-210 as seen on endoscopy
  • Anatomic variation that, in the opinion of the investigator, would adversely impact placement of LYR-210 as seen on CT
  • Known history of hypersensitivity or intolerance to corticosteroids
  • Known history of hypothalamic pituitary adrenal axial dysfunction
  • Previous pituitary or adrenal surgery
  • Dental procedure/implant on maxillary dentition within 4 weeks of the Screening visit.
  • Past or present acute or chronic intracranial or orbital complications of CRS
  • History or diagnosis (in either eye) of glaucoma or ocular hypertension
  • Past or present functional vision in only 1 eye
  • Past, present, or planned organ transplant or chemotherapy with immunosuppression
  • Currently positive for COVID-19 or residual sinonasal symptoms from a previous COVID-19 infection
  • Pregnant or breast feeding. Females of child-bearing potential must test negative for pregnancy at the time of screening
  • Evidence of disease or condition expected to compromise survival or ability to complete follow-up assessments
  • Currently participating in an investigational drug or device study
  • Determined by the investigator as not suitable to be enrolled