Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
120 participants
INTERVENTIONAL
2023-10-17
2025-07-01
Brief Summary
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Hyposmic participants will be recruited and randomized into two different treatment conditions. One group will do regular olfactory training and the other will do passive olfactory training with scented nose plugs. The training will be conducted in the home of the individual monday through friday for two consecutive months. Subjective and objectvie measures of olfactory problems will be assessed before and after treatment, as well as subjective measures related to quality of live and genereal wellbeing.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Olfactory training with nose plugs
Participants will complete olfactory training with scented nose plugs.
Nose plug
Participants will complete olfactory training with scented nose plugs.
Olfactory training with household odors
Participants will complete olfactory training with odors found in their household.
Regular olfactory training
Participants will complete olfactory training with regular odors found in their home.
Interventions
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Nose plug
Participants will complete olfactory training with scented nose plugs.
Regular olfactory training
Participants will complete olfactory training with regular odors found in their home.
Eligibility Criteria
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Inclusion Criteria
* Physically and cognitively capable of participating in the study
* Having appropriate olfactory screening test scores (hyposmic)
Exclusion Criteria
* Individuals with other diagnoses that could affect the study results
18 Years
65 Years
ALL
No
Sponsors
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Region Skane
OTHER
Karolinska Institutet
OTHER
Responsible Party
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Johan Lundström
Professor
Principal Investigators
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Johan N Lundstrom
Role: PRINCIPAL_INVESTIGATOR
Karolinska Institutet
Locations
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Karolinska Institutet
Solna, Stockholm County, Sweden
Countries
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References
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Winter AL, Henecke S, Thunell E, Swartz M, Martinsen J, Sahlstrand Johnson P, Lundstrom JN. Olfactory training using nasal inserts is more effective due to increased adherence. Rhinology. 2025 Aug 1;63(4):477-485. doi: 10.4193/Rhin24.369.
Other Identifiers
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2021-06527
Identifier Type: OTHER_GRANT
Identifier Source: secondary_id
2023-03779-01
Identifier Type: -
Identifier Source: org_study_id
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