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Efficacy and Safety of Nitazoxanide 600 mg BID Versus Placebo for the Treatment of Hospitalized Patients With COVID-19

A Phase III, Multicentre, Parallel, Randomized, Double-blind Clinical Trial to Assess the Efficacy and Safety of Nitazoxanide 600 mg Compared to Placebo in the Treatment of Hospitalized Patients With COVID-19 in Non-critical Condition

Status
UNKNOWN
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04423861
Enrollment
380
Registered
2020-06-09
Start date
2022-06-22
Completion date
2023-03-31
Last updated
2022-10-31

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

Conditions

covid19

Brief summary

This is a pivotal phase III study to evaluate the efficacy of nitazoxanide 600 mg BID compared to placebo to treat hospitalized patients with non-critical COVID-19.

Detailed description

This is pivotal phase III study to evaluate the efficacy of nitazoxanide 600 mg BID compared to placebo to treat hospitalized patients with non-critical COVID-19. The aim is to demonstrate a decrease in hospital related complications among patients who are hospitalized with moderate COVID-19 by treating them with nitazoxanide BID 600 mg for 7 days on top of standard care compared to placebo on top of standar care.. Therefore, patients hospitalized with confirmed diagnosis of COVID-19 will be randomized to receive either nitazoxanide 600 mg BID or Placebo.

Interventions

DRUGNitazoxanide

Patients will receive nitazoxanide 600 mg BID for 7 days.

DRUGPlacebo

Patients will receive matching placebo BID for 7 days.

Sponsors

Farmoquimica S.A.
CollaboratorINDUSTRY
Azidus Brasil
Lead SponsorINDUSTRY

Study design

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

Intervention model description

Patients will be randomized to receive either nitazoxanide 600 mg BID or Placebo (1:1)

Eligibility

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

Inclusion criteria

1. Informed consent from patient or legal representative. 2. Male or female, aged ≥ 18 years; 3. Laboratory confirmation of 2019-nCoV infection by reverse-transcription polymerase 4. chain reaction (RT-PCR) from any diagnostic sampling source; 5. Hospitalized for up to 48h with signs of respiratory failure with or without non-invasive ventilation and i. Oxygen saturation \<98%; 7\. Negative result for pregnancy test (if applicable).

Exclusion criteria

1. Participating in another RCT in the past 12 months; 2. Known allergy to nitazoxanide 3. Severely reduced LV function; 4. Severely reduced renal function; 5. Pregnancy or breast feeding; 6. Diagnosis of any other active infection (viral, bacterial, fungal or caused by another pathogen, except the one studied in the trial); 7. History of HIV 1 and/or 2 (Anti-HIV-1,2) and/or HTLV I and II positive; 8. Ongoing antineoplastic treatment with chemotherapy or radiation therapy; 9. Diagnose of severe autoimmune diseases in immunosuppression; 10. Transplanted patients; 11. Any other clinical condition which, in the opinion of the principal investigator, would not allow safe completion of the protocol and safe administration of the investigational products

Design outcomes

Primary

MeasureTime frameDescription
Need of mechanical ventilation14 daysEvaluation of change in acute respiratory syndrome using WHO Ordinal Scale for Clinical Improvement that measures illness severity over time (0=uninfected; ambulatory, no limitation of activities=1; ambulatory, limitation of activities=2, hospitalized no oxygen therapy=3; hospitalized oxygen by mask or nasal prongs=4; hospitalized non invasive ventilation or high-flow oxygen=5; hospitalized intubation or mechanical ventilation=6; hospitalized ventilation + additional organ support=7; death=8)

Secondary

MeasureTime frameDescription
Change in the pulmonary conditionBaseline, Day 7 and Day 14Evaluation of change in oximetry, respiratory rate and need for oxygen therapy
Change in Clinical ConditionBaseline, Day 7 and Day 14Evaluation of change in the following symptoms: cough, headache, myalgia and fever, level of consciousness and organ dysfunction
Change in tomographic pulmonary conditionBaseline, Day 7Evaluation of change in chest CT
Rate of mortality within 14-days14 daysEvaluation of change in acute respiratory syndrome
Change in inflammatory markersBaseine, Day 7, Day 14Evaluation of change in inflammatory markers d-dimer and IL-6

Countries

Brazil

Contacts

Primary ContactFlorentino de Araujo Cardoso Filho, MD, PhD
florentino.cardoso@hospitalcare.com.br+55 19 991232882
Backup ContactLuciana Ferrara
luciana.ferrara@azidusbrasil.com.br+55 19 981428814

Outcome results

None listed

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