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CompletedNCT04551768Updated Aug 26, 2021

Study to Evaluate the Safety and Efficacy of VIRAZOLE® in Hospitalized Adult Participants With Respiratory Distress Due to COVID-19

A Phase 1 interventional study of 50 mg/mL Virazole and 100 mg/mL Virazole in COVID19, sponsored by Bausch Health Americas, Inc.. Completed at 4 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-08-26.

Sponsored by Bausch Health Americas, Inc. · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
51
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
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Study summary

This study is a Phase 1, open label, non-randomized, two-arm interventional clinical trial to evaluate the safety and efficacy of Virazole® in hospitalized adult patients who have tested positive for COVID-19 and, as a result, have significant respiratory distress (PaO2/FiO2 ratio \<300 mmHg).

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Conditions studied

  • COVID19

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03

In context

COVID-19

7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.

This study's enrollment of 51 is below the median of 100 across 4,099 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Bausch Health Americas, Inc. is the lead sponsor of 209 studies on the registry; 9 are open to participants now.

Of its 23 completed or terminated interventional studies of FDA-regulated products, 16 (70%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Male or non-pregnant female ≥ 18 years of age.
  2. Willing and able to provide written informed consent (or provided by a proxy).
  3. Currently hospitalized with laboratory confirmed COVID-19 novel coronavirus infection.
  4. PaO2/FiO2 ratio \<300 mmHg.
  5. Illness of any duration, and at least one of the following:

    • Radiographic infiltrates by imaging (chest x-ray, CT scan, etc.), OR
    • Clinical assessment (evidence of rales/crackles on exam) AND SpO2 ≤94% on room air, OR
    • Requiring mechanical ventilation and/or supplemental oxygen.
  6. Once released from the hospital, women of childbearing potential (WOCBP) and all men must agree to use at contraception methods for 9 months.

Exclusion criteria

Exclusion Criteria:

  1. Pregnant or breast feeding.
  2. Respiratory distress for reasons other than COVID-19 infection (e.g., congestive heart failure (CHF), bacterial pneumonia, etc.).
  3. Presence of secondary bacterial pneumonia.
  4. Presence of significant pulmonary fibrosis.
  5. Hypotension (need for hemodynamic pressors to maintain blood pressure).
  6. Greater than 7 days on mechanical ventilation.
  7. Anemia defined as hemoglobin or RBC \<75% of the institutional lower limit of normal for race, age and gender.
  8. History of COPD or bronchospasm prior to COVID-19 infection.
  9. History of hypersensitivity to ribavirin.
  10. Any condition that could cause noncompliance with treatment or may otherwise contraindicate the subject's participation in the study
  11. Subject is currently participating in any drug or device clinical investigation.
  12. Subject has received an investigational agent or approved drug that, in the Investigator's judgement, may have a chemical or pharmacological interaction with Virazole if administered within 5 half-lives or 30 days of the Baseline Visit.
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Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
51 participants (actual)

Study arms

  • Experimental
    50 mg/mL Virazole

    50 mg/mL Virazole aerosolized and administered over 1 hour twice a day for up to 6 days.

    Drug: 50 mg/mL Virazole

  • Experimental
    100 mg/mL Virazole

    100 mg/mL Virazole aerosolized and administered over 30 minutes twice a day for up to 6 days.

    Drug: 100 mg/mL Virazole

Interventions

  • Drug50 mg/mL Virazole

    50 mg/mL Virazole aerosolized and administered over 1 hour twice a day for up to 6 days.

  • Drug100 mg/mL Virazole

    100 mg/mL Virazole aerosolized and administered over 30 minutes twice a day for up to 6 days.

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What researchers measure

Primary outcomes

  1. Change in the clinical status severity (CSS) rating from the first dose date up to the completion of treatment

    The severity rating will be based on the ordinal scale of clinical status as follows: 1. Death. 2. Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO). 3. Hospitalized, on non-invasive ventilation or high flow oxygen devices. 4. Hospitalized, requiring supplemental oxygen. 5. Hospitalized, not requiring supplemental oxygen. 6. Not hospitalized, limitation on activities. 7. Not hospitalized, no limitations on activities.

    Time frame: 7 days

Secondary outcomes

  1. Time to recover gas exchange to a PaO2/FiO2 ≥300 for at least 24 hours.

    Time frame: 7 days

  2. Time to reach peripheral capillary oxygen saturation (Sp02) >94% for at least 24 hours.

    Time frame: 7 days

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Study locations

4 sites
  • Bausch Health Site 201
    Athens, Attika 10676, Greece
  • Bausch Health Site 203
    Athens, Attika 11527, Greece
  • Bausch Health Site 204
    Alexandroupoli, Evros 68100, Greece
  • Bausch Site 304
    Tijuana, Zona Rio 22320, Mexico
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References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 26, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04551768
Lead sponsor
Bausch Health Americas, Inc.
Responsible party
Sponsor
First posted
Sep 16, 2020
Start date
Feb 10, 2021
Primary completion
Aug 17, 2021
Completion
Aug 17, 2021
Last update
Aug 26, 2021

Study contacts

Anya Loncaric
study director · Bausch Health

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2021. You cannot join it, but the record below documents what was studied.

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