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Treatment of Pediatric Patients That Lost Sense of Smell Due to COVID-19

Prospective Randomized Study of the Treatment of Pediatric Patients That Lost Sense of Smell Due to COVID-19

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04964414
Enrollment
20
Registered
2021-07-16
Start date
2021-09-30
Completion date
2023-03-29
Last updated
2024-06-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anosmia, Covid19, Dysosmia

Keywords

Sino-Nasal Outcome Test, Smell Test

Brief summary

This research study is a randomized controlled trial in pediatric and young adult patients who have lost their sense of smell due to COVID-19 viral infection. The goals are: 1. to learn more about the effects of smell retraining therapy on smell loss following COVID-19 and 2. to determine if budesonide-saline irrigations make smell retraining therapy more effective.

Detailed description

Researchers will screen all potentially eligible patients that have 'loss of smell' as their reason for visit at UPMC Children's Hospital of Pittsburgh Division of Pediatric Otolaryngology. At the initial consult appointment at the Division of Pediatric Otolaryngology, listed study team members will perform a smell identification test called the UPSIT (University of Pennsylvania Smell Identification Test) and give the SNOT-22 (Sino-Nasal Outcome Test-22) survey. The UPSIT is a 40-item scratch and sniff test with a four-choice multiple choice question on each of the 10 pages in the booklet. Indication of smell loss can be determined - anosmia (total loss) and mild, moderate, or severe microsomia and a detection for malingering. The SNOT-22 is a 22 question survey that asks about symptoms and social/emotional consequences of a nasal disorder. The survey is on a 6 point scale - No problem (0), very mild problem (1), mild or slight problem (2), moderate problem (3), severe problem (4), and problem as bad as it can be (5). A randomized clinical trial will be performed with two arms for those that have lost their sense of smell for at least 8 weeks: 1) smell retraining for 8 weeks 2) smell retraining + Budesonide irrigations for 8 weeks. Smell retraining consists of choosing 4 scents each week and smelling each item for 15 seconds very close to the nose once a day. Budesonide irrigations will be done once a day by pouring 0.5mg/2ml of Budesonide into a irrigation bottle with saline and irrigating the nose. Participants may do the therapies at any point during the day. Children and young adults ages 6 to 21 will be enrolled with 30 children block randomized in each arm, in which up to 10 children in each arm will be those who did not have a positive COVID-19 antigen test or confirmed COVID-19 by history. COVID-19 testing will be used for randomization purposes, but will not be limited to testing due to the inclusion of confirmation by history. Two groups of subjects for study inclusion: Group 1: COVID-19 by clinical history or lab testing (n=40 (20 randomized to each group)) Those with COVID-19 confirmation by clinical history may not have had a COVID-19 positive test. Group 2: Those that did not have COVID-19 by clinical history or lab testing (n=20 (10 randomized to each group)) These subjects may have had a negative COVID-19 test or no clinical history of COVID-19. Each child, with the help of their parents, will do the assigned therapy and fill out a daily Smell Diary. The child will pick 4 scents each week to perform the smell retraining each day that week. The child or parent will check mark every day that the 4 scents were smelled. The scents do not have to be new each week. Once a week the child will rate their loss of smell on a scale from 0 (no loss) to 10 (total loss). Researchers will check in with the parent or participant on weeks 3, 5, and after the 8 week period. Families will return the Smell Diary at their standard of care follow-up appointment at 8 weeks (range 8 to 12 weeks). The UPSIT and the SNOT-22 will be given at the follow-up appointment. If the participants' sense of smell did not return to baseline at the follow-up, they will be asked to return at 6 months after the initial consult. If the participants' sense of smell has still not returned at the 6 month appointment, they will be asked to follow-up at 1 year after the initial consult. The UPSIT and SNOT-22 will be given at each of these appointments. If smell was not a baseline at 8 weeks, listed investigators will call the subject or subjects' parents at 6 months and 1 year after the initial appointment to check-in and for a reminder to schedule a follow-up appointment. If participants do not have an 8-week follow-up visit, they may be mailed an UPSIT to complete at home and return by mail. They may also complete the SNOT-22 by mail or phone, and they may return the smell diary by email. If patients were initially randomized to the smell retraining only, after the initial 8-12 weeks of therapy they may be prescribed budesonide as part of standard of care to maximize medical management as needed. We will invite participants to fill out a new smell diary during this time and we will collect any data available from the smell diary, UPSIT, and SNOT-22 at their standard of care visit after 8-12 weeks of budesonide irrigation. Patients who have already completed more than 12 weeks of smell retraining will not be included in this arm; although budesonide may be prescribed based on physician discretion, data will not be collected following budesonide treatment.

Interventions

OTHERSmell Retraining

Smell practice with household scented items

DRUGBudesonide

Nasal irrigation with liquid steroid

Sponsors

Amanda Stapleton
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Randomized controlled trial

Eligibility

Sex/Gender
ALL
Age
6 Years to 21 Years
Healthy volunteers
No

Inclusion criteria

* Subjects ages 6 to 21 who have loss of smell (anosmia) or dysosmia (disordered smell perception) and thought to have occurred due to COVID-19. * Subjects who are able to complete the smell test (UPSIT), self-report their loss of smell, and do the assigned daily therapy.

Exclusion criteria

* Duration of anosmia or dysosmia \<60 days * Previous smell retraining * Prior interventions for loss of smell (excluding those on Flonase and Azelastine) * Contraindications for nasal budesonide treatment, as determined by the treating physician * Active cigarette smoker or use of vapes * Previous head trauma * Congenital anosmia * History of brain tumor * Neurocognitive disorders * Multiple sclerosis * Seizure disorder * Cystic fibrosis * Primary Ciliary Dyskinesia * History of nasal polyps * Inability to self-report

Design outcomes

Primary

MeasureTime frameDescription
Change in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to First Follow-upBefore and after 8-12 weeks of smell retrainingChange in University of Pennsylvania Smell Identification Test (UPSIT) score from baseline at the initial consult appointment to the first follow-up appointment at 8 weeks (range 8 to 12 weeks). The UPSIT is a smell identification test and is a 40-item scratch and sniff test with a four-choice multiple choice question on each of the 10 pages in the booklet. Indication of smell loss can be determined - anosmia (total loss) and mild, moderate, or severe microsomia and a detection for malingering. The minimum possible score is a 0 and the maximum is a 40. A higher score indicates better smell/outcome.

Secondary

MeasureTime frameDescription
Change in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to First Follow-upBefore and after 8-12 weeks of smell retrainingChange in Sino-nasal Outcome Test-22 (SNOT-22) score from baseline at the initial consult appointment to the first follow-up appointment at 8 weeks (range 8 to 12 weeks). The SNOT-22 is a 22 question survey that asks about symptoms and social/emotional consequences of a nasal disorder. The survey is on a 6 point scale - No problem (0), very mild problem (1), mild or slight problem (2), moderate problem (3), severe problem (4), and problem as bad as it can be (5). The minimum possible score is 0 and the maximum is 110. A higher score indicates more sino-nasal symptoms/worse outcome.
Change in Loss of Smell Question Score From Baseline to First Follow-upBefore and after 8-12 weeks of smell retrainingChange in loss of smell on a 0-10 scale from baseline at the initial consult appointment to the first follow-up appointment at 8 weeks (range 8 to 12 weeks). Subjects are asked to rate the symptom severity of loss of smell from 0 (no loss) to 10 (total loss). A higher score indicates worse smell/outcome.
Change in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to 6 Month Follow-upBaseline and 6 months after initial consult appointmentChange in University of Pennsylvania Smell Identification Test (UPSIT) score from baseline at the initial consult appointment to the 6 month follow-up appointment. The minimum possible score is a 0 and the maximum is a 40. A higher score indicates better smell/outcome.
Change in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to 12 Month Follow-upBaseline and 12 months after initial consult appointmentChange in University of Pennsylvania Smell Identification Test (UPSIT) score from baseline at the initial consult appointment to the 12 month follow-up appointment. The minimum possible score is a 0 and the maximum is a 40. A higher score indicates better smell/outcome.
Change in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to 12 Month Follow-upBaseline and 12 months after initial consult appointmentChange in Sino-nasal Outcome Test-22 (SNOT-22) score from baseline at the initial consult appointment to the 12 month follow-up appointment. The minimum possible score is 0 and the maximum is 110. A higher score indicates more sino-nasal symptoms/worse outcome.
Change in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to 6 Month Follow-upBaseline and 6 months after initial consult appointmentChange in Sino-nasal Outcome Test-22 (SNOT-22) score from baseline at the initial consult appointment to the 6 month follow-up appointment. The minimum possible score is 0 and the maximum is 110. A higher score indicates more sino-nasal symptoms/worse outcome.

Other

MeasureTime frameDescription
Change in Loss of Taste Question Score From Baseline to First Follow-upBefore and after 8-12 weeks of smell retrainingChange in loss of taste on a 0-10 scale from baseline at the initial consult appointment to the first follow-up appointment at 8 weeks (range 8 to 12 weeks). Subjects are asked to rate the symptom severity of loss of taste from 0 (no loss) to 10 (total loss). A higher score indicates less taste/worse outcome.
Change in Anxiety Question Score From Baseline to First Follow-upBefore and after 8-12 weeks of smell retrainingChange in anxiety on a 0-10 scale from baseline at the initial consult appointment to the first follow-up appointment at 8 weeks (range 8 to 12 weeks). Subjects are asked to rate the symptom severity of anxiety from 0 (no anxiety) to 10 (worst possible anxiety). A higher score indicates more anxiety/worse outcome.

Countries

United States

Participant flow

Pre-assignment details

One participant was placed in a treatment arm (OT + BI) different than what was randomly assigned (OT) at the initial clinic visit.

Participants by arm

ArmCount
Smell Retraining Only
Participants will undergo smell retraining for 8 weeks. Each week, participants will choose 4 scents. They will smell each item for 15 seconds very close to the nose once a day. Smell Retraining: Smell practice with household scented items
11
Smell Retraining + Budesonide
Participants will undergo smell retraining as described above. They will also complete budesonide irrigations once a day by pouring 0.5mg/2ml of budesonide into a irrigation bottle with saline and irrigating the nose. Smell Retraining: Smell practice with household scented items Budesonide: Nasal irrigation with liquid steroid
9
Total20

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up108
Overall StudyWithdrawal by Subject11

Baseline characteristics

CharacteristicTotalSmell Retraining + BudesonideSmell Retraining Only
Age, Continuous16 years16 years13 years
Age, Customized
13-18 years
15 Participants9 Participants6 Participants
Age, Customized
19-21 years
1 Participants0 Participants1 Participants
Age, Customized
7-12 years
5 Participants0 Participants5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
19 Participants8 Participants11 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Medical History
Allergic Rhinitis
No
17 Participants6 Participants11 Participants
Medical History
Allergic Rhinitis
Yes
3 Participants3 Participants0 Participants
Medical History
Deviated Septum
No
19 Participants8 Participants11 Participants
Medical History
Deviated Septum
Yes
1 Participants1 Participants0 Participants
Medical History
Environmental Allergies
No
17 Participants6 Participants11 Participants
Medical History
Environmental Allergies
Yes
3 Participants3 Participants0 Participants
Medical History
History of Radiation
No
19 Participants8 Participants11 Participants
Medical History
History of Radiation
Yes
1 Participants1 Participants0 Participants
Medical History
Immunosuppression
No
18 Participants8 Participants10 Participants
Medical History
Immunosuppression
Yes
2 Participants1 Participants1 Participants
Primary Complaint
Abnormal Smell and Taste
14 Participants8 Participants6 Participants
Primary Complaint
Abnormal Smell Only
6 Participants1 Participants5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race (NIH/OMB)
White
18 Participants8 Participants10 Participants
Sex: Female, Male
Female
15 Participants7 Participants8 Participants
Sex: Female, Male
Male
5 Participants2 Participants3 Participants
Symptom Onset Post-COVID-19
Delayed
4 Participants2 Participants2 Participants
Symptom Onset Post-COVID-19
Immediate
14 Participants7 Participants7 Participants
Symptom Onset Post-COVID-19
Unknown
2 Participants0 Participants2 Participants
Vaccinated against COVID-19
No
3 Participants1 Participants2 Participants
Vaccinated against COVID-19
Unknown
15 Participants8 Participants7 Participants
Vaccinated against COVID-19
Yes
2 Participants0 Participants2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 110 / 9
other
Total, other adverse events
0 / 110 / 9
serious
Total, serious adverse events
0 / 110 / 9

Outcome results

Primary

Change in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to First Follow-up

Change in University of Pennsylvania Smell Identification Test (UPSIT) score from baseline at the initial consult appointment to the first follow-up appointment at 8 weeks (range 8 to 12 weeks). The UPSIT is a smell identification test and is a 40-item scratch and sniff test with a four-choice multiple choice question on each of the 10 pages in the booklet. Indication of smell loss can be determined - anosmia (total loss) and mild, moderate, or severe microsomia and a detection for malingering. The minimum possible score is a 0 and the maximum is a 40. A higher score indicates better smell/outcome.

Time frame: Before and after 8-12 weeks of smell retraining

Population: Patients who completed 8-12 week follow-up assessments

ArmMeasureGroupValue (MEAN)Dispersion
Smell Retraining OnlyChange in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to First Follow-upBefore smell retraining23.3 score on a scaleStandard Deviation 7.3
Smell Retraining OnlyChange in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to First Follow-upAfter 8-12 weeks of smell retraining22.3 score on a scaleStandard Deviation 7.3
Smell Retraining + BudesonideChange in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to First Follow-upBefore smell retraining34 score on a scale
Smell Retraining + BudesonideChange in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to First Follow-upAfter 8-12 weeks of smell retraining35 score on a scale
p-value: 0.6Paired t-test
Secondary

Change in Loss of Smell Question Score From Baseline to First Follow-up

Change in loss of smell on a 0-10 scale from baseline at the initial consult appointment to the first follow-up appointment at 8 weeks (range 8 to 12 weeks). Subjects are asked to rate the symptom severity of loss of smell from 0 (no loss) to 10 (total loss). A higher score indicates worse smell/outcome.

Time frame: Before and after 8-12 weeks of smell retraining

Population: Patients who returned the smell diary and completed the loss of smell scale before and after 8-12 weeks of smell retraining

ArmMeasureGroupValue (MEAN)Dispersion
Smell Retraining OnlyChange in Loss of Smell Question Score From Baseline to First Follow-upBefore smell retraining6.0 score on scaleStandard Deviation 3.3
Smell Retraining OnlyChange in Loss of Smell Question Score From Baseline to First Follow-upAfter 8-12 weeks of smell retraining5.0 score on scaleStandard Deviation 3.7
Smell Retraining + BudesonideChange in Loss of Smell Question Score From Baseline to First Follow-upBefore smell retraining6.0 score on scale
Smell Retraining + BudesonideChange in Loss of Smell Question Score From Baseline to First Follow-upAfter 8-12 weeks of smell retraining8.0 score on scale
p-value: 0.09Paired t-test
Secondary

Change in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to 12 Month Follow-up

Change in Sino-nasal Outcome Test-22 (SNOT-22) score from baseline at the initial consult appointment to the 12 month follow-up appointment. The minimum possible score is 0 and the maximum is 110. A higher score indicates more sino-nasal symptoms/worse outcome.

Time frame: Baseline and 12 months after initial consult appointment

Population: Patients who completed 12 month follow-up assessments

Secondary

Change in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to 6 Month Follow-up

Change in Sino-nasal Outcome Test-22 (SNOT-22) score from baseline at the initial consult appointment to the 6 month follow-up appointment. The minimum possible score is 0 and the maximum is 110. A higher score indicates more sino-nasal symptoms/worse outcome.

Time frame: Baseline and 6 months after initial consult appointment

Population: Patients who completed 6 month follow-up assessments

ArmMeasureGroupValue (MEDIAN)
Smell Retraining OnlyChange in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to 6 Month Follow-upBefore smell retraining25 score on a scale
Smell Retraining OnlyChange in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to 6 Month Follow-upAfter 6 months of smell retraining9 score on a scale
Secondary

Change in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to First Follow-up

Change in Sino-nasal Outcome Test-22 (SNOT-22) score from baseline at the initial consult appointment to the first follow-up appointment at 8 weeks (range 8 to 12 weeks). The SNOT-22 is a 22 question survey that asks about symptoms and social/emotional consequences of a nasal disorder. The survey is on a 6 point scale - No problem (0), very mild problem (1), mild or slight problem (2), moderate problem (3), severe problem (4), and problem as bad as it can be (5). The minimum possible score is 0 and the maximum is 110. A higher score indicates more sino-nasal symptoms/worse outcome.

Time frame: Before and after 8-12 weeks of smell retraining

Population: Patients who completed 8-12 week follow-up assessments

ArmMeasureGroupValue (MEDIAN)
Smell Retraining OnlyChange in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to First Follow-upBefore smell retraining23 score on a scale
Smell Retraining OnlyChange in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to First Follow-upAfter 8-12 weeks of smell retraining25 score on a scale
Smell Retraining + BudesonideChange in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to First Follow-upBefore smell retraining37 score on a scale
Smell Retraining + BudesonideChange in Sino-nasal Outcome Test-22 (SNOT-22) Score From Baseline to First Follow-upAfter 8-12 weeks of smell retraining39 score on a scale
p-value: 0.6Wilcoxon signed-rank
Secondary

Change in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to 12 Month Follow-up

Change in University of Pennsylvania Smell Identification Test (UPSIT) score from baseline at the initial consult appointment to the 12 month follow-up appointment. The minimum possible score is a 0 and the maximum is a 40. A higher score indicates better smell/outcome.

Time frame: Baseline and 12 months after initial consult appointment

Population: Patients who completed 12 month follow-up assessments

Secondary

Change in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to 6 Month Follow-up

Change in University of Pennsylvania Smell Identification Test (UPSIT) score from baseline at the initial consult appointment to the 6 month follow-up appointment. The minimum possible score is a 0 and the maximum is a 40. A higher score indicates better smell/outcome.

Time frame: Baseline and 6 months after initial consult appointment

Population: Patients who completed 6 month follow-up assessments

ArmMeasureGroupValue (MEDIAN)
Smell Retraining OnlyChange in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to 6 Month Follow-upBefore smell retraining15 score on scale
Smell Retraining OnlyChange in University of Pennsylvania Smell Identification Test (UPSIT) Score From Baseline to 6 Month Follow-upAfter 6 months of smell retraining17 score on scale
Other Pre-specified

Change in Anxiety Question Score From Baseline to First Follow-up

Change in anxiety on a 0-10 scale from baseline at the initial consult appointment to the first follow-up appointment at 8 weeks (range 8 to 12 weeks). Subjects are asked to rate the symptom severity of anxiety from 0 (no anxiety) to 10 (worst possible anxiety). A higher score indicates more anxiety/worse outcome.

Time frame: Before and after 8-12 weeks of smell retraining

ArmMeasureGroupValue (MEAN)Dispersion
Smell Retraining OnlyChange in Anxiety Question Score From Baseline to First Follow-upBefore smell retraining5.0 score on a scaleStandard Deviation 4.4
Smell Retraining OnlyChange in Anxiety Question Score From Baseline to First Follow-upAfter 8-12 weeks of smell retraining3.4 score on a scaleStandard Deviation 4.4
Smell Retraining + BudesonideChange in Anxiety Question Score From Baseline to First Follow-upBefore smell retraining7.0 score on a scale
Smell Retraining + BudesonideChange in Anxiety Question Score From Baseline to First Follow-upAfter 8-12 weeks of smell retraining8.5 score on a scale
p-value: 0.2Paired t-test
Other Pre-specified

Change in Loss of Taste Question Score From Baseline to First Follow-up

Change in loss of taste on a 0-10 scale from baseline at the initial consult appointment to the first follow-up appointment at 8 weeks (range 8 to 12 weeks). Subjects are asked to rate the symptom severity of loss of taste from 0 (no loss) to 10 (total loss). A higher score indicates less taste/worse outcome.

Time frame: Before and after 8-12 weeks of smell retraining

Population: Patients who returned the smell diary and completed the loss of taste scale before and after 8-12 weeks of smell retraining

ArmMeasureGroupValue (MEAN)Dispersion
Smell Retraining OnlyChange in Loss of Taste Question Score From Baseline to First Follow-upBefore smell retraining3.6 score on scaleStandard Deviation 3.8
Smell Retraining OnlyChange in Loss of Taste Question Score From Baseline to First Follow-upAfter 8-12 weeks of smell retraining1.6 score on scaleStandard Deviation 2.1
Smell Retraining + BudesonideChange in Loss of Taste Question Score From Baseline to First Follow-upBefore smell retraining6.0 score on scale
Smell Retraining + BudesonideChange in Loss of Taste Question Score From Baseline to First Follow-upAfter 8-12 weeks of smell retraining8.0 score on scale
p-value: 0.2Paired t-test

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026