Evaluating changes in swallowing, taste, and smell in stroke patients

Changes in Sensitivity of Swallowing-relevant Structures, Taste and Smell in Stroke Patients

Observational University of Giessen · NCT03240965

This study looks at how swallowing, taste, and smell change in stroke patients, especially those who have trouble swallowing, to see if there are any links between these issues.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Giessen Academic / other
Locations1 site (Giessen, Hesse)
Trial IDNCT03240965 on ClinicalTrials.gov

What this trial studies

This observational study investigates the changes in swallowing, taste, and smell in stroke patients, particularly focusing on those with dysphagia. It employs flexible endoscopic evaluation of swallowing (FEES) and sensitivity threshold tests to assess the swallowing reflex and pharyngeal sensitivity. Additionally, neuropsychological testing will be conducted to evaluate any cognitive deficits related to swallowing. The study also aims to explore the correlation between changes in taste and smell in stroke patients, an area that has not been systematically researched.

Who should consider this trial

Good fit: Ideal candidates include stroke patients who have experienced a new supratentorial stroke within the last 72 hours and can provide informed consent.

Not a fit: Patients with pre-existing strokes or dysphagia, extensive white matter lesions, or allergies to odorous substances may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of dysphagia in stroke patients, potentially reducing the risk of aspiration pneumonia.

How similar studies have performed: While there have been studies on swallowing and sensitivity in stroke patients, this specific combination of assessments is relatively novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Volunteers:

* informed consent

Stroke patients:

* informed consent
* new supratentorial stroke (\<72 hours old) confirmed by CT (computed tomography) or MRI (magnetic resonance imaging)

Exclusion Criteria:

* pre-existing stroke oder dysphagia
* extensive white matter lesions in CT- or MRI-scan
* allergies to odorous substances or flavoring
* contraindications for FEES (flexible endoscopic evaluation of swallowing), CT or MRI (stroke patients only)

Where this trial is running

Giessen, Hesse

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions DysphagiaStroke
Last reviewed 2026-06-09 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.