CRS questionnaire validation project
NCT ID NCT06970977
First seen Sep 09, 2026 · Last updated Sep 09, 2026
Summary
The 'CRS validation project' consists of a joint effort of 32 medical centers in Europe, the USA, and South Africa to carry out the validation of 2 novel questionnaires designated to measure self-perceived severity and control of Chronic Rhinosinusitis (with or without nasal polyps). This study will validate translated versions of the same set of questionnaires simultaneously in the centers involved after recruiting a total of 1000 patients, while data collection, statistical analysis, and creation of the study report will be carried out by the statistical department of the University of Leuven. Patients will be recruited from the regular ENT practice of their hospital to minimize the complexity of the study.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 1,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2024
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Adult patients, capable of giving consent, with certified CRS and no recent sinus surgery
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patient capable of giving informed consent * Diagnosis of chronic rhinosinusitis with or without nasal polyposis according to the EPOS guidelines * No recent sinus surgery (within the last three months) Exclusion Criteria: * Not capable of giving informed consent * No CRS * Recent sinus surgery (within the last three months)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
32 sites in 11 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Ahmed Alkhadi Hospital
RECRUITINGDurban, South Africa
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Alrijne Zorggroep
RECRUITINGLeiden, Netherlands
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Brigham Sinus Center at Brigham and Women's Hospital
RECRUITINGBoston, Massachusetts, 02115, United States
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Eastern Virginia Medical School
RECRUITINGVirginia City, Virginia, 23507, United States
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HNO-Klinik, Universitätsklinikum Düsseldorf
NOT_YET_RECRUITINGDüsseldorf, Germany
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Hospital Clinic Barcelona
RECRUITINGBarcelona, Spain
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Hospital Clínico Universitario de Compostela
RECRUITINGA Coruña, Spain
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Hospital General Universitario de Valencia
RECRUITINGValencia, Spain
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Hospital Universitario Fuenlabrada
RECRUITINGMadrid, Spain
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Hospital Universitario Infanta Elena, Madrid y Hospital Universitario Fundación Jiménez Díaz
RECRUITINGMadrid, Spain
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Hospital Universitario Jerez de La Frontera
RECRUITINGCadiz, Spain
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Hospital Universitario Marqués de Valdecilla
RECRUITINGSantander, Spain
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Hospital Universitario Puerta del Mar
RECRUITINGCadiz, Spain
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Hospital Universitario Puerto Real
RECRUITINGCadiz, Spain
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Hospital Universitario Ramón y Cajal
RECRUITINGMadrid, Spain
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Hospital Universitario Virgen Macarena
RECRUITINGSeville, Spain
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Hospital de La Línea de La Concepción
RECRUITINGCadiz, Spain
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Hospital de la Santa Creu i Sant Pau
RECRUITINGBarcelona, Spain
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Hospital del Bierzo
RECRUITINGPonferrada, Spain
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Northwestern University Feinberg School of Medicine
RECRUITINGChicago, Illinois, 60208, United States
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St. Michael's Hospital
RECRUITINGToronto, Canada
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Thomas Jefferson University Hospital
RECRUITINGPhiladelphia, Pennsylvania, 19107, United States
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U. Aristotle
RECRUITINGThessaloniki, Greece
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UCLA Santa Monica Medical Center
RECRUITINGSanta Monica, California, 90401, United States
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UZ Gent
NOT_YET_RECRUITINGGhent, Belgium
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UZ Leuven
RECRUITINGLeuven, Belgium
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Univ Amsterdam
NOT_YET_RECRUITINGAmsterdam, Netherlands
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Univ Hospital Roma
RECRUITINGRoma, Italy
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Univ Munich
NOT_YET_RECRUITINGMunich, Germany
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Univ of Copenhagen
RECRUITINGCopenhagen, Denmark
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University General Hospital of Heraklion
RECRUITINGHeraklion, Greece
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University of Oradea
RECRUITINGOradea, Romania
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