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Cognitive and Immunologic Profiles of Patients With Olfactory Dysfunction After Smell Training (CIPOD)

26. juni 2026 opdateret af: The Cleveland Clinic

A research study to assess the baseline olfactory function, mental health status, clinical severity, and immunological profile in patients with smell loss. The impact of a 3-month olfactory training program on smell function, immunological changes, and mental health in patients with smell loss will be evaluated.

The primary purpose of this study is to investigate tissue and blood samples to identify molecules that may be related to smell loss, ultimately aiming to develop future treatments for this condition and correlate with cognition.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Adult patients with chronic rhinosinusitis (CRS) with nasal polyps and those experiencing loss of smell will be recruited for the study, along with healthy control participants. We will exclude individuals with unilateral nasal polyps, autoimmune diseases, ciliary disorders, cystic fibrosis, or smell loss due to tumors or trauma.

Assessments will be conducted at baseline and again three months after smell training to evaluate changes in olfactory function. Control patients will only undergo baseline testing with no follow-up assessments needed.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

52

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

  • Navn: Christopher Novicky
  • Telefonnummer: 216-444-7018
  • E-mail: novickc@ccf.org

Studiesteder

  • Forenede Stater
    • Ohio
      • Cleveland, Ohio, Forenede Stater, 44195
        • Rekruttering
        • The Cleveland Clinic
        • Kontakt:
        • Kontakt:
        • Ledende efterforsker:
          • Mohamad Chaaban

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Age less than 18 years-old
  • Present to rhinology clinic with CRS with nasal polyps
  • Sense of smell loss for any reason (other than trauma or tumor)

Exclusion Criteria:

  • Patients < 18 years of age
  • Individuals with unilateral nasal polyps
  • Autoimmune diseases
  • Ciliary disorders
  • Cystic fibrosis
  • Smell loss due to tumors or trauma

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Grundvidenskab
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Group 1: - loss of smell + CRS with nasal polyps (CRSwNP)
Loss of smell + CRS with nasal polyps (CRSwNP)
Andet: Smell Training
Patients experiencing loss of smell from chronic rhinosinusitis (CRS)will undergo smell training.
Aktiv komparator: Group 2: - loss of smell with no CRS/no polyps - undergo 3 months of smell training
Loss of smell + CRS with nasal polyps (CRSwNP) - undergo 3 months of smell training
Andet: Smell Training
Patients experiencing loss of smell from chronic rhinosinusitis (CRS)will undergo smell training.
Ingen indgriben: Control Group 1: - no loss of smell CRS with nasal polyps (CRSwNP)
No loss of smell CRS with nasal polyps (CRSwNP)
Ingen indgriben: Control Group 2: -no loss of smell / no CRS/no polyps
No loss of smell / no CRS/no polyps

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Primary Outcome Measure 1: Baseline olfactory function measured by UPSIT score
Tidsramme: Baseline

At baseline, participants will complete the University of Pennsylvania Smell Identification Test (UPSIT), a standardized 40-item scratch-and-sniff odor identification test. Scores range from 0 to 40, with higher scores indicating better olfactory function.

Unit of Measure: Score on a scale from 0 to 40.
Baseline
Primary Outcome Measure 2: Baseline quality-of-life impact of olfactory dysfunction measured by QOD-NS score
Tidsramme: Baseline

At baseline, participants will complete the Questionnaire of Olfactory Disorders-Negative Statements (QOD-NS), which measures the negative psychosocial impact of olfactory dysfunction. Scores range from 0 to 48, with higher scores indicating greater negative impact of smell loss on quality of life.

Unit of Measure: Score on a scale from 0 to 48.
Baseline
Primary Outcome Measure 3: Baseline cognitive function measured by MMSE score
Tidsramme: Baseline

At baseline, participants will complete the Mini-Mental State Examination (MMSE), an 11-question cognitive screening tool. Scores range from 0 to 30, with higher scores indicating better cognitive function.

Unit of Measure: Score on a scale from 0 to 30.
Baseline
Primary Outcome Measure 4: Baseline nasal cytokine concentration
Tidsramme: Baseline

At baseline, nasal secretions will be collected from the middle meatus using a polyvinyl alcohol (PVA) sponge and analyzed for cytokine concentrations by multiplex immunoassay. Each cytokine concentration will be reported separately and will not be combined with questionnaire or cognitive assessment scores.

Unit of Measure: pg/mL for each cytokine concentration reported separately.
Baseline

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Secondary Outcome Measure 1: Change from baseline to Month 3 in olfactory function measured by UPSIT score
Tidsramme: Baseline to Month 3
Change from baseline to Month 3 in olfactory function will be assessed using the University of Pennsylvania Smell Identification Test (UPSIT), a standardized 40-item scratch-and-sniff odor identification test. Scores range from 0 to 40, with higher scores indicating better olfactory function. Unit of Measure: Change in score on a scale from 0 to 40.
Baseline to Month 3
Secondary Outcome Measure 2: Change from baseline to Month 3 in quality-of-life impact of olfactory dysfunction measured by QOD-NS score
Tidsramme: Baseline to Month 3
Change from baseline to Month 3 in the negative psychosocial impact of olfactory dysfunction will be assessed using the Questionnaire of Olfactory Disorders-Negative Statements (QOD-NS). Scores range from 0 to 48, with higher scores indicating greater negative impact of smell loss on quality of life. Unit of Measure: Change in score on a scale from 0 to 48.
Baseline to Month 3
Secondary Outcome Measure 3: Change from baseline to Month 3 in cognitive function measured by MMSE score
Tidsramme: Baseline to Month 3
Change from baseline to Month 3 in cognitive function will be assessed using the Mini-Mental State Examination (MMSE), an 11-question cognitive screening tool. Scores range from 0 to 30, with higher scores indicating better cognitive function. Unit of Measure: Change in score on a scale from 0 to 30.
Baseline to Month 3
Secondary Outcome Measure 4: Change from baseline to Month 3 in nasal cytokine concentration
Tidsramme: Baseline to Month 3
Change from baseline to Month 3 in nasal cytokine concentration will be assessed. Nasal secretions will be collected from the middle meatus using a polyvinyl alcohol (PVA) sponge and analyzed by multiplex immunoassay. Each cytokine concentration will be reported separately. Unit of Measure: Change in pg/mL.
Baseline to Month 3

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

The Cleveland Clinic

Efterforskere

  • Ledende efterforsker: Mohamad Chaaban, MD, The Cleveland Clinic

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

9. december 2025

Primær færdiggørelse (Anslået)

31. december 2026

Studieafslutning (Anslået)

31. marts 2027

Datoer for studieregistrering

Først indsendt

13. maj 2026

Først indsendt, der opfyldte QC-kriterier

26. juni 2026

Først opslået (Faktiske)

2. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

2. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

26. juni 2026

Sidst verificeret

1. juni 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • IRB #24-1122

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

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Betingelser

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Placeringer

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