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Comparison of Viral Particle Dispersion Following Administration of an MDI or Nebulizer in Subjects With COVID-19

A 2-Period, Crossover Study to Assess the Impact of Nebulizer With Filtered Mouthpiece vs MDI With Spacer on Viral Load in Rooms of Subjects With Mild to Moderate COVID-19

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04681079
Enrollment
14
Registered
2020-12-23
Start date
2021-05-04
Completion date
2022-01-18
Last updated
2022-01-28

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

Conditions

COVID-19

Keywords

Nebulizer, MDI, Meter Dosed Inhaler, Filter, Spacer, COVID-19, Coronavirus disease 2019, SARS-CoV-2, Aerosol, Viral transmission

Brief summary

A randomized, 2-period crossover, single-center, open-label study for viral sample collection. After initiation of inhaled therapy with nebulizer or MDI, cascade impactors and surface samplers will be used to assess viral loads in rooms of subjects with COVID-19.

Detailed description

Observational Study Model = Other \[non-treatment; impact on external location (rooms and surfaces)\] Time Perspective = Other \[viral load samples taken at various time points after nebulization or MDI administered\] Sampling Method = Non-probability sample \[to be described by study team\]

Interventions

DRUGalbuterol sulfate (MDI)

albuterol sulfate inhalation aerosol delivered via metered-dose inhaler (MDI) with spacer

DRUGalbuterol sulfate (nebulizer)

albuterol sulfate inhalation aerosol delivered via nebulizer with filtered mouthpiece

Sponsors

Theravance Biopharma
Lead SponsorINDUSTRY

Study design

Observational model
OTHER
Time perspective
OTHER

Eligibility

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

Inclusion criteria

1. Willing and able to provide written informed consent, either themselves or via legally acceptable representative, prior to undergoing study procedures 2. Willing and able to comply with study-related procedures/assessments 3. Adults over 18 years of age 4. COVID-19 infection as confirmed by PCR from nasopharyngeal, oropharyngeal swabs and/or saliva specimen taken within the previous 5 days

Exclusion criteria

1. Subjects currently receiving mechanical ventilation or noninvasive positive-pressure ventilation, or subjects who, in the opinion of the investigator, will require ventilatory support (i.e., mechanical ventilation or noninvasive positive-pressure ventilation) within the next 12 hours Note: Signs of impending need for ventilatory support include pronounced hypoxia despite supplemental oxygen \>6 L/min, prolonged respiratory rate (i.e., \>30 breaths per minute), signs of respiratory muscle fatigue, or paradoxical diaphragm. 2. Presence of significant comorbidity that, in the opinion of the investigator, makes the subject unsuitable for participation in the study 3. Known or suspected hypersensitivity to albuterol, history of paradoxical bronchospasm, or significant cough response to albuterol 4. Participating in other clinical trials related to COVID-19 thought to interfere with study interpretation (e.g., antivirals or antibodies that might change the viral load over the course of a day; subjects should not receive antibody therapy within 24 hours before the baseline period) 5. Active or incompletely treated pulmonary infections, such as tuberculosis (or known history of nontuberculosis mycobacterium) over past 12 months 6. Pregnant or currently breast feeding, or a positive urine pregnancy dip test performed at baseline (women only)

Design outcomes

Primary

MeasureTime frameDescription
Viral LoadBaseline, Day 1Change in viral load from baseline at each sample point (room air and surfaces). This outcome measure is listed as exploratory in the protocol.

Countries

United States

Outcome results

None listed

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