Trial to Evaluate Efficacy and Safety of Nitazoxanide in the Treatment of Mild or Moderate COVID-19

• ClinicalTrials.gov Identifier: NCT04486313
• Recruitment Status: Completed
• First Posted: July 24, 2020
• Last Update Posted: February 11, 2022
• Sponsor: Romark Laboratories L.C.
• Information provided by (Responsible Party): Romark Laboratories L.C.

Study Description

Brief Summary:

Trial to Evaluate Efficacy and Safety of Nitazoxanide in the Treatment of Mild or Moderate COVID-19

Condition or disease	Intervention/treatment	Phase
COVID-19	Drug: Nitazoxanide; Drug: Placebo; Dietary Supplement: Vitamin Super B-Complex	Phase 3

Detailed Description:

Phase 3, Multicenter, Randomized, Double-Blind, Placebo-Controlled Trial to Evaluate Efficacy and Safety of Nitazoxanide in the Treatment of Mild or Moderate COVID-19

Study Design

• Study Type: Interventional (Clinical Trial)
• Actual Enrollment: 1092 participants
• Allocation: Randomized
• Intervention Model: Parallel Assignment
• Masking: Triple (Participant, Care Provider, Investigator)
• Primary Purpose: Treatment
• Official Title: Phase 3, Randomized, Double-Blind, Placebo-Controlled, Trial to Evaluate Efficacy and Safety of Nitazoxanide in the Treatment of Mild or Moderate COVID-19
• Actual Study Start Date: August 13, 2020
• Actual Primary Completion Date: February 8, 2021
• Actual Study Completion Date: February 8, 2021

Arms and Interventions

Arm	Intervention/treatment
Active Comparator: Nitazoxanide; Two nitazoxanide 300 mg tablets orally twice daily for 5 days	Drug: Nitazoxanide; Two nitazoxanide 300 mg tablets administered orally twice daily with food for 5 days; Other Names: NTZ (nitazoxanide); NT-300; Dietary Supplement: Vitamin Super B-Complex; Vitamin Super B-Complex administered orally twice daily to maintain the blind
Placebo Comparator: Placebo; Two placebo tablets orally twice daily for 5 days	Drug: Placebo; Two placebo tablets administered orally twice daily with food for 5 days; Dietary Supplement: Vitamin Super B-Complex; Vitamin Super B-Complex administered orally twice daily to maintain the blind

Outcome Measures

Primary Outcome Measures :

1. Reducing the Time to Sustained Response [ Time Frame: Up to 21 days ]
   To evaluate the effect of nitazoxanide in reducing the time to sustained response compared to placebo in subjects with mild or moderate COVID-19

Secondary Outcome Measures :

1. Reducing the Rate of Progression [ Time Frame: Up to 21 days ]
   To evaluate the effect of nitazoxanide in reducing the rate of progression to severe COVID-19 illness compared to placebo

Eligibility Criteria

• Ages Eligible for Study: 12 Years to 120 Years (Child, Adult, Older Adult)
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: No

Criteria

Inclusion Criteria:

• Male or female outpatients at least 12 years of age

• Presence of clinical signs and/or symptoms consistent with worsening or stable mild or moderate COVID-19 (one of the following is required):

  1. Presence of at least two respiratory symptom domains (head, throat, nose, chest, cough) with a score of ≥2 as determined by Screening FLU-PRO OR
  2. Presence of at least one respiratory symptom domain (head, throat, nose, chest, cough) with a score of ≥2 as determined by Screening FLU-PRO with pulse rate ≥90 OR
  3. Presence of at least one respiratory symptom domain (head, throat, nose, chest, cough) with a score of ≥2 as determined by Screening FLU-PRO with respiratory rate ≥16

AND patient reported assessment that symptoms are present, the symptoms are not consistent with the subject's usual health, the symptoms interfere with daily activities, and the symptoms have worsened or remained the same relative to the previous day, as confirmed by responses to questions in the Screening FLU-PRO.

• Onset of symptoms no more than 72 hours before enrollment in the trial. Onset of symptoms is defined as the earlier of the first time at which the subject experienced subjective fever or any respiratory symptom (head, throat, nose, chest, or cough symptoms).
• Willing and able to provide written informed consent (including assent by legal guardian if under 18 years of age) and comply with the requirements of the protocol, including completion of the subject diary and all protocol procedures.

Exclusion Criteria:

• Persons with any clinical sign or symptoms suggestive of severe systemic illness with COVID-19, including the following:

  1. shortness of breath at rest,
  2. resting pulse ≥125 beats per minute,
  3. resting respiratory rate ≥30 breaths per minute, or
  4. SpO2 ≤ 93% on room air at sea level.
• Subjects who experienced a previous episode of acute upper respiratory tract infection, otitis, bronchitis or sinusitis or received antibiotics for these conditions within two weeks prior to and including study day 1.

• Severely immunodeficient persons including:

  1. Subjects with immunologic disorders or receiving immunosuppressive therapy (e.g., for organ or bone marrow transplants, immunomodulatory therapies for certain autoimmune diseases)
  2. Subjects with untreated human immunodeficiency virus (HIV) infection or treated human immunodeficiency virus (HIV) infection with a CD4 count below 350 cells/mm3 in the last six months
  3. Subjects actively undergoing systemic chemotherapy or radiotherapy treatment for malignancy
  4. Subjects using steroids as maintenance therapy for chronic conditions
• Subjects with active respiratory allergies or subjects expected to require anti- allergy medications during the study period for respiratory allergies.
• Females of childbearing potential who are either pregnant or sexually active without the use of birth control. Female subjects of child-bearing potential that are sexually active must have a negative baseline pregnancy test and must agree to continue an acceptable method of birth control for the duration of the study and for 1 month post-treatment. A double barrier method, oral birth control pills administered for at least 2 monthly cycles prior to study drug administration, an intrauterine device (IUD), or medroxyprogesterone acetate administered intramuscularly for a minimum of one month prior to study drug administration are acceptable methods of birth control for inclusion into the study. Female subjects are considered of childbearing potential unless they are postmenopausal (absence of menstrual bleeding for 1 year - or 6 months if laboratory confirmation of hormonal status), or have had a hysterectomy, bilateral tubular ligation or bilateral oophorectomy.
• Subjects with a history of COVID-19 or known to have developed anti-SARS- CoV-2 antibodies.
• Subjects residing in the same household with another subject participating in the study.
• Treatment with any investigational drug or vaccine therapy within 30 days prior to screening and willing to avoid them during the course of the study.
• Receipt of any dose of nitazoxanide within seven days prior to screening.
• Known sensitivity to nitazoxanide or any of the excipients comprising the study medication.
• Subjects unable to swallow oral tablets or capsules.
• Subjects with known severe heart, lung, neurological or other systemic disease that the Investigator believes could preclude safe participation.
• Subjects likely or expected to require hospitalization unrelated to COVID-19 during the study period.
• Subjects taking medications considered to be major CYP2C8 substrates.
• Subjects who, in the judgment of the Investigator, will be unlikely to comply with the requirements of this protocol including completion of the subject diary.

Contacts and Locations

Locations

United States, Florida

Invesclinic US LLC

Fort Lauderdale, Florida, United States, 33308

United States, New York

RH Medical Urgent Care

Bronx, New York, United States, 10456

Sponsors and Collaborators

Romark Laboratories L.C.

More Information

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

Rossignol JF, Bardin MC, Fulgencio J, Mogelnicki D, Bréchot C. A randomized double-blind placebo-controlled clinical trial of nitazoxanide for treatment of mild or moderate COVID-19. EClinicalMedicine. 2022 Feb 28;45:101310. doi: 10.1016/j.eclinm.2022.101310. eCollection 2022 Mar.

• Responsible Party: Romark Laboratories L.C.
• ClinicalTrials.gov Identifier: NCT04486313
• Other Study ID Numbers: RM08-3008
• First Posted: July 24, 2020
• Last Update Posted: February 11, 2022
• Last Verified: February 2022

• Studies a U.S. FDA-regulated Drug Product: Yes
• Studies a U.S. FDA-regulated Device Product: No

Additional relevant MeSH terms:

COVID-19; Respiratory Tract Infections; Infections; Pneumonia, Viral; Pneumonia; Virus Diseases; Coronavirus Infections; Coronaviridae Infections; Nidovirales Infections; RNA Virus Infections; Lung Diseases; Respiratory Tract Diseases; Nitazoxanide; Antiparasitic Agents; Anti-Infective Agents