Trial to Evaluate the Efficacy and Safety of Nitazoxanide (NTZ) for Pre- and Post Exposure Prophylaxis of COVID-19 and Other Viral Respiratory Illnesses (VRI) in Healthcare Workers and Others at Increased Risk of SARS-CoV-2 Infection
Public ClinicalTrials.gov record NCT04359680. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Randomized, Double-Blind, Placebo Controlled Trial to Evaluate the Efficacy and Safety of Nitazoxanide (NTZ) for Pre- and Post Exposure Prophylaxis of COVID-19 and Other Viral Respiratory Illnesses (VRI) in Healthcare Workers and Others at Increased Risk of SARS-CoV-2 Infection
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Trial to Evaluate the Efficacy and Safety of Nitazoxanide (NTZ) for Pre- and Post Exposure Prophylaxis of COVID-19 and Other Viral Respiratory Illnesses (VRI) in Healthcare Workers and Others at Increased Risk of SARS-CoV-2 Infection
Study identification
- NCT ID
- NCT04359680
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 1,407 participants
Conditions and interventions
Conditions
Interventions
- Nitazoxanide Drug
- Placebo Drug
- Vitamin Super B-Complex Dietary Supplement
Drug · Dietary Supplement
Eligibility (public fields only)
- Age range
- 18 Years to 120 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- May 13, 2020 (Actual)
- Primary completion
- Apr 7, 2021 (Actual)
- Completion
- Apr 7, 2021 (Actual)
- Last update posted
- Jun 26, 2024
2020 – 2021
United States locations
- U.S. sites
- 26
- U.S. states
- 10
- U.S. cities
- 24
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| HealthStar Research LLC | Hot Springs | Arkansas | 71913 | — |
| So Cal Clinical Research | Huntington Beach | California | 92647 | — |
| Long Beach Clinical Trials, LLC | Long Beach | California | 90806 | — |
| Meris Clinical Research | Brandon | Florida | 33511 | — |
| Invesclinica US LLC | Fort Lauderdale | Florida | 33308 | — |
| The Chappel Group Research | Kissimmee | Florida | 34744 | — |
| New Horizon Research Center | Miami | Florida | 33165 | — |
| Clinical Neuroscience Solutions, Inc. | Orlando | Florida | 32801 | — |
| DMI Research | Pinellas Park | Florida | 33782 | — |
| Tampa General Hospital | Tampa | Florida | 33606 | — |
| Chicago Clinical Research Institute, Inc. | Chicago | Illinois | 60607 | — |
| Chicago Medical Research Institute, Inc. | Chicago | Illinois | 60607 | — |
| Quad Clinical Research | Chicago | Illinois | 60643 | — |
| Chicago Medical Research, LLC | Hazel Crest | Illinois | 60429 | — |
| Centex Studies, Inc. | Lake Charles | Louisiana | 70601 | — |
| Vida Clinical Studies | Dearborn | Michigan | 48124 | — |
| Beacom Family Health Connection | Fremont | Nebraska | 68025 | — |
| North Jersey Community Research Initiative | Newark | New Jersey | 07103 | — |
| Integrative Clinical Trials LLC | Brooklyn | New York | 11229 | — |
| The New York Center for Travel and Tropical Medicine | New York | New York | 10022 | — |
| RH Medical Urgent Care Professional PLLC | The Bronx | New York | 10456 | — |
| Centex Studies, Inc. | Houston | Texas | 77058 | — |
| SMS Clinical Research LLC | Mesquite | Texas | 75149 | — |
| LinQ Research LLC | Pearland | Texas | 77584 | — |
| Rio Grande Valley Clinical Research Institute | Pharr | Texas | 78577 | — |
| BFHC Research | San Antonio | Texas | 78249 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04359680, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jun 26, 2024 · Synced Oct 24, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT04359680 live on ClinicalTrials.gov.