Upper Airway Inflammation and Olfaction: Mechanisms of Loss and Recovery

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-70
SponsorCliniques universitaires Saint-Luc- Université Catholique de Louvain

About this trial

The goal of this clinical trial is to understand the mechanisms leading to olfactory dysfunction (OD) in chronic rhinosinusitis (CRS). The main questions it aims to answer are:

* Is the type 2 inflammation impacting the olfactory epithelium regeneration, leading to OD? * Does a treatment interfering with one of the major T2 inflammatory cytokines, have an impact on the mechanisms of OD in CRS?

Participants will undergo olfactory testing and nasal brushing before and after 3 months of treatment.

Eligibility criteria

Qualifiers

At least two of the following symptoms: nasal obstruction, rhinorrhoea, smell loss, facial pain for 12 weeks.

Endoscopic visualisation of bilateral sinonasal polyps

SSI (TDI) < 30.75 and decreased sense of smell subjectively

Eosinophilia > 300/μl of blood Ku/l

Disqualifiers

Active smoking

Primary and secondary immune deficiencies

Ciliary diseases (cystic fibrosis, primary ciliary diskinesia)

History of or current nasal malignancies

Trial design

Treatments tested in this trial

  • Nasal brushing of the olfactory cleft
  • Smell testing

Treatment groups

140 Participants
are divided into 1 treatment group