Steroid Nasal Irrigation for Flavor Evaluation and Detection Study
NCT ID: NCT02985515
Last Updated: 2022-11-04
Study Results
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View full resultsBasic Information
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COMPLETED
NA
51 participants
INTERVENTIONAL
2016-09-28
2019-11-20
Brief Summary
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Detailed Description
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This study aims to study the efficacy of smell training for patients with olfactory dysfunction following a viral upper respiratory tract infection. Eligible participants will complete a 30-day course of budesonide nasal saline irrigation. Participants who do not show improvement in their olfaction based on composite smell and taste tests will be eligible to receive a baseline resting-state fMRI (rs-fMRI) and complete a 12-week smell training intervention program. Smell training involves participants smelling 4 odors (phenyl ethyl alcohol, eucalyptus, lemon, and eugenol) twice a day for 12 weeks. Following completion of smell training, participants will undergo repeat smell and taste tests as well as rs-fMRI to ascertain the efficacy of smell training.
Conditions
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Study Design
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NON_RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Budesonide Nasal Irrigation
30-day run-in course of budesonide nasal irrigation.
1-month supply of budesonide capsules, an 8-oz sinus rinse bottle, and a 1-month supply of commercially prepared isotonic salt packets.
Participants were instructed to dissolve 2 budesonide capsules (0.5mg per capsule) into the sinus rinse bottle along with the saline mixture and then irrigate both nasal cavities once daily.
No interventions assigned to this group
Budesonide Nasal Irrigation + Smell Training
Budesonide nasal irrigation + smell training for 12 weeks
Smell training
Participants will be provided with 4 vials of essential odors. Participants will sniff each scent for 20-30 seconds, twice daily, for 12 weeks. The participant will take 30 seconds of rest between each scent. All participants will undergo this smell training regimen for 12 weeks.
Controls
Baseline olfaction testing and rs-fMRI
No interventions assigned to this group
Interventions
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Smell training
Participants will be provided with 4 vials of essential odors. Participants will sniff each scent for 20-30 seconds, twice daily, for 12 weeks. The participant will take 30 seconds of rest between each scent. All participants will undergo this smell training regimen for 12 weeks.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* Anosmia or hyposmia (UPSIT \<34 (male), UPSIT \<34 (female); Sniffin' Sticks threshold below 5.5)
Exclusion Criteria
* Current smoker or history of smoking within the past 6 months
* Current nasal polyps
* Exposure to head and or/neck radiation
* Exposure to chemotherapy
18 Years
70 Years
ALL
Yes
Sponsors
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Washington University School of Medicine
OTHER
Responsible Party
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Principal Investigators
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Jay F Piccirillo, MD
Role: PRINCIPAL_INVESTIGATOR
Washington University School of Medicine
Locations
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Washington University
St Louis, Missouri, United States
Countries
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References
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Deems DA, Doty RL, Settle RG, Moore-Gillon V, Shaman P, Mester AF, Kimmelman CP, Brightman VJ, Snow JB Jr. Smell and taste disorders, a study of 750 patients from the University of Pennsylvania Smell and Taste Center. Arch Otolaryngol Head Neck Surg. 1991 May;117(5):519-28. doi: 10.1001/archotol.1991.01870170065015.
Doty RL, Frye RE, Agrawal U. Internal consistency reliability of the fractionated and whole University of Pennsylvania Smell Identification Test. Percept Psychophys. 1989 May;45(5):381-4. doi: 10.3758/bf03210709.
Hummel T, Sekinger B, Wolf SR, Pauli E, Kobal G. 'Sniffin' sticks': olfactory performance assessed by the combined testing of odor identification, odor discrimination and olfactory threshold. Chem Senses. 1997 Feb;22(1):39-52. doi: 10.1093/chemse/22.1.39.
Kobal G, Hummel T, Sekinger B, Barz S, Roscher S, Wolf S. "Sniffin' sticks": screening of olfactory performance. Rhinology. 1996 Dec;34(4):222-6.
Coldwell SE, Mennella JA, Duffy VB, Pelchat ML, Griffith JW, Smutzer G, Cowart BJ, Breslin PA, Bartoshuk LM, Hastings L, Victorson D, Hoffman HJ. Gustation assessment using the NIH Toolbox. Neurology. 2013 Mar 12;80(11 Suppl 3):S20-4. doi: 10.1212/WNL.0b013e3182872e38.
Bartoshuk LM, Duffy VB, Hayes JE, Moskowitz HR, Snyder DJ. Psychophysics of sweet and fat perception in obesity: problems, solutions and new perspectives. Philos Trans R Soc Lond B Biol Sci. 2006 Jul 29;361(1471):1137-48. doi: 10.1098/rstb.2006.1853.
Pepino MY, Finkbeiner S, Beauchamp GK, Mennella JA. Obese women have lower monosodium glutamate taste sensitivity and prefer higher concentrations than do normal-weight women. Obesity (Silver Spring). 2010 May;18(5):959-65. doi: 10.1038/oby.2009.493. Epub 2010 Jan 14.
Cicerale S, Breslin PA, Beauchamp GK, Keast RS. Sensory characterization of the irritant properties of oleocanthal, a natural anti-inflammatory agent in extra virgin olive oils. Chem Senses. 2009 May;34(4):333-9. doi: 10.1093/chemse/bjp006. Epub 2009 Mar 8.
Keast RS, Roper J. A complex relationship among chemical concentration, detection threshold, and suprathreshold intensity of bitter compounds. Chem Senses. 2007 Mar;32(3):245-53. doi: 10.1093/chemse/bjl052. Epub 2007 Jan 13.
Cowart BJ. Relationships between taste and smell across the adult life span. Ann N Y Acad Sci. 1989;561:39-55. doi: 10.1111/j.1749-6632.1989.tb20968.x. No abstract available.
Hummel T, Rissom K, Reden J, Hahner A, Weidenbecher M, Huttenbrink KB. Effects of olfactory training in patients with olfactory loss. Laryngoscope. 2009 Mar;119(3):496-9. doi: 10.1002/lary.20101.
Stamps JJ, Bartoshuk LM, Heilman KM. A brief olfactory test for Alzheimer's disease. J Neurol Sci. 2013 Oct 15;333(1-2):19-24. doi: 10.1016/j.jns.2013.06.033. Epub 2013 Aug 5.
Tepper BJ, Christensen CM, Cao J. Development of brief methods to classify individuals by PROP taster status. Physiol Behav. 2001 Jul;73(4):571-7. doi: 10.1016/s0031-9384(01)00500-5.
Pekala K, Chandra RK, Turner JH. Efficacy of olfactory training in patients with olfactory loss: a systematic review and meta-analysis. Int Forum Allergy Rhinol. 2016 Mar;6(3):299-307. doi: 10.1002/alr.21669. Epub 2015 Dec 1.
Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Other Identifiers
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201608163
Identifier Type: -
Identifier Source: org_study_id
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