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Directed Topical Drug Delivery for Treatment for PASC Hyposmia

Directed Topical Drug Delivery for Treatment for PASC Hyposmia

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05970731
Enrollment
16
Registered
2023-08-01
Start date
2023-09-05
Completion date
2024-10-07
Last updated
2026-03-19

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

Conditions

Post Acute Sequelae Covid-19 Hyposmia

Keywords

Covid-19, smell loss, hyposmia

Brief summary

This is a phase II randomized, double-blinded, placebo-controlled study to evaluate the efficacy of topical intranasal treatment of beclomethasone vs. placebo for improved olfactory function.

Detailed description

Eligible participants are randomized to receive either Beclomethasone or placebo intranasally via a microsponge twice on day 1 and day 14. Study duration is three months and includes 4 in-person study visits: 2 visits for drug administration at Baseline and Week 2, and 2 follow-up visits at Week 6 and Week 18. Participants will be expected to complete the Smell Identification Test (SIT) and Questionnaire on Olfactory Disorders (QOD) at baseline, Week 6, and Week 18. The investigator hypothesizes that the application of beclomethasone directly in the nasal cavity will result in improved olfactory function.

Interventions

DRUGBeclomethasone

84 mcg of Beclomethasone administered topically on an intranasal microsponge, placed in the olfactory cleft using a nasal endoscope, on day 1 and repeated on day 14.

OTHERPlacebo

Placebo (0.9% sodium chloride) administered topically on an intranasal microsponge, placed in the olfactory cleft using a nasal endoscope, on day 1 and repeated on day 14.

DEVICEMicrosponge

Drug delivery using chitosan-based biocompatible microsponge

Sponsors

Duke University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Post-COVID hyposmia lasting greater than 3 months following COVID19 by history * Male or female, aged 18 years or older

Exclusion criteria

* Pregnancy or lactation * Known allergic reactions to components of microsponge (including shellfish) or to beclomethasone * Known diagnosis of glaucoma * Febrile illness within 1 week * Treatment with another investigational drug or other intervention within 3 months * Active sinonasal disease by nasal exam, i.e. rhinosinusitis, nasal polyps * Adults unable to consent * Prisoners, employees or subordinates * Individuals who are not yet adults (infants, children, teenagers)

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Achieving MCID (Minimal Clinically Important Difference) on the Smell Identification Test (SIT)Baseline, 1 month, 3 monthsThe SIT has a score range of 0 to 40, where a higher score reflects better olfactory function. MCID is defined at a 4 point increase.

Secondary

MeasureTime frameDescription
Change in Olfactory Quality of Life (QOL) Measured by the Questionnaire on Olfactory Disorders (QOD)Baseline, 1 month, 3 monthsThe QOD consists of 17 statements which patients report on a scale of 0 to 3. These scores are summed for a total score range of 0 to 51, where a higher score reflects better olfactory-specific QOL. The change from baseline to 3 months is reported.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORBradley Goldstein, MD, PhD

Duke Health

Participant flow

Recruitment details

Participants were recruited from an academic center otolaryngology clinic.

Pre-assignment details

One participant was found to be ineligible prior to arm assignment.

Baseline characteristics

Characteristic
Age, Continuous56.0 years
STANDARD_DEVIATION 17.5
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
15 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
5 Participants
Race (NIH/OMB)
White
7 Participants
Region of Enrollment
United States
8 Participants
Sex: Female, Male
Female
10 Participants
Sex: Female, Male
Male
2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 70 / 8
other
Total, other adverse events
0 / 70 / 8
serious
Total, serious adverse events
0 / 70 / 8

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 20, 2026