Understanding how inflammation affects smell in chronic rhinosinusitis
Official title: Upper Airway Inflammation and Olfaction: Mechanisms of Loss and Recovery
Run by Cliniques universitaires Saint-Luc- Université Catholique de Louvain · NCT06776042 · Data updated 2026-11-12
This study is testing whether a new treatment for inflammation can help improve the sense of smell in people with chronic rhinosinusitis and nasal polyps.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 70 Years |
| Sex | All |
| Enrollment | 140 (estimated) |
| Sponsor | Cliniques universitaires Saint-Luc- Université Catholique de Louvain Academic / other |
| Locations | 1 site (Brussels) |
| Status | Recruiting |
| Started | May 22, 2023 |
| Main results expected | September 30, 2026 |
| Study ends | September 30, 2026 |
| Registry record updated | April 27, 2026 |
| Trial ID | NCT06776042 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include adults aged 18 to 70 with chronic rhinosinusitis and olfactory dysfunction.
✕Probably not a fit
Patients with active smoking habits, immune deficiencies, or certain nasal conditions may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial aims to investigate the mechanisms behind olfactory dysfunction in patients with chronic rhinosinusitis with nasal polyps. It will assess whether type 2 inflammation impacts the regeneration of the olfactory epithelium and if a treatment targeting T2 inflammatory cytokines can influence olfactory dysfunction. Participants will undergo olfactory testing and nasal brushing before and after a 3-month treatment period to evaluate changes in their sense of smell. The study focuses on understanding the relationship between inflammation and olfactory recovery.
Why it matters
Potential benefit: If successful, this study could lead to improved treatments for patients suffering from smell loss due to chronic rhinosinusitis.
How similar studies have gone: While the specific approach may be novel, similar studies have shown promise in understanding the relationship between inflammation and olfactory function.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * 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 * On a stable nasal steroid treatment for at least 4 weeks Exclusion Criteria: * Active smoking * Primary and secondary immune deficiencies * Ciliary diseases (cystic fibrosis, primary ciliary diskinesia) * History of or current nasal malignancies * \< 18 years and \> 70 years * Patients unable to express consent * Use of systemic corticosteroids for \< 4 weeks before visit 1 • Use of systemic or local antibiotics for \< 4 weeks before visit 1
Where it's running
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Cliniques Universitaires Saint-Luc
Brussels, Belgium Recruiting
Study contacts
- Principal investigator: Valérie Hox, MD, PhD — Cliniques universitaires Saint-Luc- Université Catholique de Louvain
- Study coordinator: Valérie Hox, MD, PhD
- Email: valerie.hox@saintluc.uclouvain.be
- Phone: +3227648675
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Metabolic and Immunologic Biomarkers in Chronic Rhinosinusitis with Nasal Polyps
This study tests whether metabolic and immune markers in nasal tissue and blood differ between people with nasal polyps and those without, to help understand CRSwNP and find potential diagnostic clues.
-
Tezepelumab in real-world CRSwNP: a real-world look at patient outcomes
This study tests tezepelumab in adults with chronic rhinosinusitis with nasal polyps to see how their symptoms and daily life change in routine care over about two years.
-
BBT002 in healthy adults and in people with chronic rhinosinusitis with nasal polyps
This study tests BBT002 versus placebo to see how it acts, how safe it is, and whether it helps people with chronic rhinosinusitis with nasal polyps, with or without asthma.
-
Real-world use of tezepelumab for chronic rhinosinusitis with nasal polyps in Russia
This study will see how tezepelumab works in adults in Russia who have chronic rhinosinusitis with nasal polyps, with or without asthma.
-
Joint pulmonologist and ENT consult for asthma with nasal polyps care
This study tests whether a combined pulmonology and ENT visit helps people with asthma and nasal polyps reduce the need for oral steroids over a year compared to usual separate visits.
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Real-time detection of eosinophilic nasal polyps using high-sensitivity spectroscopy
This will test a non-invasive light-based device that shines a safe light into the nose to quickly find eosinophilic nasal polyps in adults with chronic rhinosinusitis with nasal polyps.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.