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Chronic Rhinosinusitis With Nasal PolypsEpiBarNCT06398873

Effect of Dupilumab on Nasal Epithelial Barrier Function in Patients With CRSwNP

An observational study of Chronic Rhinosinusitis With Nasal Polyps and Chronic Rhinosinusitis Without Nasal Polyps, run by Medical University of Vienna at 1 site in Austria.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The investigators aim to investigate two major so far unresolved topics in CRSwNP research: (1) Thorough functional and molecular characterisation of barrier function in patients suffering from CRSsNP and CRSwNP and (2) effect of dupilumab treatment on barrier function in polyp patients. Read more about this study

Who is it for?
Ages 18 to 99 years
What is being tested?
Dupilumab 300 MG/2 ML Subcutaneous Solution [DUPIXENT]
Type of treatment
Injection or infusion
How many people
80 participants
Where
1 siteAustria
Study dates
6 Jun 2024to 1 Sep 2027
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients with chronic rhinosinusitis with and without nasal polyps

Who may be able to join

  • 18-99 years of age
  • Willingness to participate in the study
  • Suffer from chronic rhinosinusitis defined as in EPOS 2020 criteria, see main text
  • Group 1 (n=20, CRSsNP): Absence of nasal polyps
  • Group 2 (N=60, CRSwNP): Presence of nasal polyps as confirmed by endoscopy or CT and planned therapy with dupilumab
  • Presence or absence of non-steroidal anti-inflammatory drug (NSAID)-Exacerbated Respiratory Disease (N-ERD)
  • Patients with a history of treatment with monoclonal antibodies will only be included if at least a washout period of 6 months has passed

Who cannot join

  • Pregnancy (as determined by ß-HCG test) or breast feeding
  • Patients with severe anatomic variations or deviations that do not allow access to all areas in the nasal cavity
  • Patients with cystic fibrosis or primary ciliary dyskinesia
  • Patients with permanent immunosuppression
  • A mental condition rendering the subject unable to understand the nature, scope, and possible consequences of the study
  • Patients with clinically meaningful comorbidity as determined by the evaluating committee
  • Patients with a history of exacerbation of chronic rhinosinusitis 4 weeks prior to the screening visit
  • Intake of a burst of systemic corticosteroids for the treatment of CRS 4 weeks prior to the screening visit

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Austria1 site, 1 recruiting
  • Medical University of Vienna

    Vienna, Austria, A-1090

    Julia Eckl-Dorna, MD, PhD, 004314040034380, julia.eckl-dorna@meduniwien.ac.at

    Victoria Stanek, MA, victoria.stanek@meduniwien.ac.at

    Recruiting

Other trials in Austria

About this study

Official title: Effect of Dupilumab on Nasal Epithelial Barrier Function in Patients With Chronic Rhinosinusitis With Nasal Polyps (CRSwNP) - an Exploratory Pilot Study

The investigators aim to investigate two major so far unresolved topics in CRSwNP research: (1) Thorough functional and molecular characterisation of barrier function in patients suffering from CRSsNP and CRSwNP and (2) effect of dupilumab treatment on barrier function in polyp patients. This will be achieved in patient-derived samples by employing measurement of barrier function in primary cell cultures in combination with a mass cytometry based imaging approach, transcriptomic analysis as well as cytokine and microbiome data of individual patients.

Read the detailed description

Primary objective 1: Characterization of differences in barrier function of the nasal epithelium in patients suffering from CRSsNP, CRSwNP with and without asthma or N-ERD (in absence of therapy with monoclonal antibodies). T Primary objective 2: Effect of dupilumab treatment on barrier function of the nasal epithelium in patients suffering from CRSwNP with and without asthma or N-ERD.

Being tested
Dupilumab 300 MG/2 ML Subcutaneous Solution [DUPIXENT]

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Dupilumab 300 MG/2 ML Subcutaneous Solution [DUPIXENT]Drug

    300mg/2 weeks

Study groups in NCT06398873
Study groupRoleWhat they receive
CRSsNPNot described
CRSwNPDupilumab
Receives: Drug: Dupilumab 300 MG/2 ML Subcutaneous Solution [DUPIXENT]

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Barrier function in CRSsNP and CRSwNP

    Cell index (xCELLigence)

    Measured: 1 Visit (baseline)

  2. Barrier function in CRSwNP with Dupilumab

    Cell index (xCELLigence)

    Measured: 3 Visits (baseline, 3 months, 6 months)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 May 2024
  2. Study start6 Jun 2024
  3. Primary completion1 Sep 2026 (estimated)
  4. Study completion1 Sep 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
80 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06398873
Sponsor's protocol ID
EpiBar
Acronym
EpiBar
Status last verified
Jun 2024
First submitted
25 Apr 2024
Last updated
7 May 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: IPD will be shared upon reasonable request

Publications

  • Bachert C, Han JK, Desrosiers M, Hellings PW, Amin N, Lee SE, Mullol J, Greos LS, Bosso JV, Laidlaw TM, Cervin AU, Maspero JF, Hopkins C, Olze H, Canonica GW, Paggiaro P, Cho SH, Fokkens WJ, Fujieda S, Zhang M, Lu X, Fan C, Draikiwicz S, Kamat SA, Khan A, Pirozzi G, Patel N, Graham NMH, Ruddy M, Staudinger H, Weinreich D, Stahl N, Yancopoulos GD, Mannent LP. Efficacy and safety of dupilumab in patients with severe chronic rhinosinusitis with nasal polyps (LIBERTY NP SINUS-24 and LIBERTY NP SINUS-52): results from two multicentre, randomised, double-blind, placebo-controlled, parallel-group phase 3 trials. Lancet. 2019 Nov 2;394(10209):1638-1650. doi: 10.1016/S0140-6736(19)31881-1. Epub 2019 Sep 19.

    PubMed 31543428
  • Schneider S, Poglitsch K, Morgenstern C, Quint T, Gangl K, Sinz C, Bartosik T, Campion NJ, Liu DT, Landegger LD, Tu A, Stanek V, Rocha-Hasler M, Bangert C, Eckl-Dorna J. Dupilumab increases aspirin tolerance in NSAID-exacerbated respiratory disease. Eur Respir J. 2023 Mar 16;61(3):2201335. doi: 10.1183/13993003.01335-2022. Print 2023 Mar.

    PubMed 36549708

Questions about this trial

What is this clinical trial studying?

An observational study of Chronic Rhinosinusitis With Nasal Polyps and Chronic Rhinosinusitis Without Nasal Polyps, run by Medical University of Vienna at 1 site in Austria.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 7 May 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Austria. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Barrier function in CRSsNP and CRSwNP (time frame: 1 Visit (baseline)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06398873, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 May 2025.

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