Clinical trial Recruiting at 1 site Observational Ages 18 to 70

Investigating the effects of endoscopic skull base surgery on smell

Official title: The Impact of Endoscopic Endonasal Skull Base Surgery on Olfaction

Run by Universitaire Ziekenhuizen KU Leuven · NCT06874426 · Data updated 2026-11-12

This study tests how endoscopic skull base surgery affects the sense of smell in patients to better understand any smell-related problems that might happen after the surgery.

More Meningioma trials

Quick facts

Study typeObservational
Ages18 Years to 70 Years
SexAll
Enrollment154 (estimated)
SponsorUniversitaire Ziekenhuizen KU Leuven
Academic / other
Locations3 sites (Leuven, Vlaams-Brabant and 2 other locations)
StatusRecruiting
StartedMarch 18, 2025
Main results expectedDecember 2028
Study endsSeptember 2029
Registry record updatedApril 23, 2025
Trial IDNCT06874426 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adult patients scheduled for endoscopic endonasal skull base surgery.

Probably not a fit

Patients with pre-existing anosmia or those who have had previous endoscopic endonasal skull base surgery 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 study examines how endoscopic endonasal skull base surgery affects the sense of smell in patients. It combines clinical assessments with histomolecular analysis to understand the incidence and causes of olfactory dysfunction after surgery. The research team will evaluate patients before and after the procedure, collecting tissue samples to analyze the underlying mechanisms of any smell-related issues. The goal is to clarify the impact of this surgical approach on both olfactory and trigeminal functions.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of olfactory dysfunction following skull base surgeries.

How similar studies have gone: While the investigation of olfactory dysfunction post-surgery is not extensively studied, similar approaches in related fields have shown promise in understanding sensory impacts of surgical interventions.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult patients scheduled for endoscopic endonasal skull base surgery

Exclusion Criteria:

* Pre-existing anosmia
* Patients has a history of previous endoscopic endonasal skull base surgery

Where it's running

  • KU Leuven
    Leuven, Vlaams-Brabant, Belgium
    Recruiting
  • Max Planck Research Unit for Neurogenetics
    Frankfurt am Main, Hesse, Germany
    Active not recruiting
  • Leiden University Medical Center
    Leiden, South Holland, Netherlands
    Not yet recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.