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Olfactory Biopsies

RecruitingNAAges 18 Years - anyAllDuke University
NCT07021040 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

This research study aims to investigate the function of the olfactory lining in the nasal cavity and its potential alterations in both healthy and diseased conditions. The olfactory lining is involved in the sense of smell. The purpose of this study is to collect tissue from the nasal cavity.

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📋 Eligibility rules (as published)
Group 1: Alzheimer's study Inclusion Criteria: * Between the ages of 18 and 80 * Pre-clinical AD (this cohort consists of subjects who have normal cognitive testing and function, but have positive AD biomarkers); * Symptomatic AD (a confirmed diagnosis of Alzheimer's or dementia who are capable of understanding and signing the consent document) Exclusion Criteria: * Advanced Alzheimer's/dementia * Self-reported or known allergy to Afrin or Tetracain HCL (or related class of drugs) * Active Rhinosinusitis symptoms * Other known sinonasal disease history that would preclude biopsy (i.e prior sinus or skull base surgery directly impacting this anatomic region, sinonasal neoplasm in this anatomic region, olfactory cleft polyps) * Parkinson's disease * Unable or willing to complete the nasal endoscopy procedure. * Unable to read or speak English * Unable to provide legally effective consent Group 2: Act-seq study or Non-AD controls Inclusion Criteria: * Age 18 years or older * Patients being seen for rhinology or olfactory disorders * Patients having unrelated endoscopic nasal surgery Exclusion Criteria: * Self-reported or known allergy to Afrin or Tetracain HCL (or related class of drugs) * Unable or willing to complete the nasal endoscopy procedure * Unable to read or speak English * Unable to provide legally effective consent
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What it tests

  • olfactory testing
  • Odor stimulation
  • Olfactory biopsy
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Where

1 site
Duke University Health Center
Durham, United States
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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