CClinicalTrials.gg
TerminatedNCT04431466IFORSUpdated Oct 12, 2021

A Study to Compare the Efficacy and Safety of Different Doses of Ivermectin for COVID-19

A Phase 2 interventional study of Ivermectin and Standard of Care in Coronavirus Infection, sponsored by Universidade Federal de Sao Carlos. Terminated at 2 sites in Brazil. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-10-12.

Sponsored by Universidade Federal de Sao Carlos · Phase 2, Interventional, and Treatment

Why this study was terminated
Preliminary data from a pilot study suggest that the administration of ivermectin in patients with SARS-CoV-2 is safe, reducing symptoms and viral load. The antiviral effects of ivermectin appear to depend on the dose administered.
Phase
Phase 2
Study type
Interventional
Enrollment
32
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

In December 2019, a group of patients with pneumonia of unknown cause was linked to a wholesale seafood market in Wuhan, China. The genetic analysis of samples from the lower respiratory tract of these patients indicated a new coronavirus as the causative agent, which was named SARS-CoV-2. The virus spread rapidly to more than 45 countries, including Brazil, causing an international alarm. However, in spite of its epidemiological magnitude, so far, there is no antiviral treatment or vaccine approved for the treatment of this infection. With about 15% to 20% of SARS-CoV-2 patients suffering from serious illnesses and overburdened hospitals, therapeutic options are desperately needed. So, instead of creating compounds from scratch that can take years to develop and test, researchers and public health agencies have sought to redirect drugs already approved for other diseases and known to be widely safe. In this context, the analysis of the international literature shows the existence of an in vitro antiviral activity of ivermectin against SARS-CoV-2. However, there are no studies that have evaluated its clinical effectiveness in patients diagnosed with SARS-CoV-2 infection. Therefore, and considering this knowledge gap, the present study aims to determine the clinical efficacy and safety of different doses of ivermectin in patients diagnosed with SARS-CoV-2 infection.

02

Conditions studied

  • Coronavirus Infection

Keywords

  • coronavirus infections
  • SARS-CoV-2
  • COVID-19
  • ivermectin
  • clinical trial
03

In context

Infections

6,687 studies on the registry are indexed under Infections; 807 are open to participants now.

This study's enrollment of 32 is below the median of 120 across 4,200 interventional studies indexed under Infections.

Browse Infections studies →

Lead sponsor

Universidade Federal de Sao Carlos is the lead sponsor of 85 studies on the registry; 8 are open to participants now.

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

04

Who can participate

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

Inclusion criteria

  • Diagnosis of infection by SARS-CoV-2:

    1. symptoms of acute respiratory tract infection (sudden onset of at least one of the following: cough, fever, shortness of breath) and biomolecular diagnosis of SARS-CoV-2 infection; OR
    2. any acute respiratory disease AND biomolecular diagnosis of SARS-CoV-2 infection; OR
    3. severe acute respiratory infection (fever and at least one sign / symptom of respiratory disease eg cough, fever, shortness of breath) AND in need of hospitalization AND biomolecular diagnosis of SARS-CoV-2 infection;
  • Eastern Cooperative Oncology Group Performance Status score 0 to 1;
  • National Early Warning Score 0 to 4;
  • Ability to understand and consent to participate in this clinical trial, manifested by signing the Informed Consent Form (ICF).

Exclusion criteria

Exclusion Criteria:

  • Inability to ingest / absorb the study drug orally through spontaneous ingestion or use of gastro / enteral tubes;
  • Any finding of clinical observation (history / physical evaluation) that is interpreted by the investigating physician as a risk to participate in the trial;
  • Any laboratory test findings that the investigating physician considers as a risk to the research participant as to his / her participation in the clinical study;
  • Any ECG examination finding that the investigating physician considers as a risk to the research participant as to his / her participation in the trial;
  • Known hypersensitivity to the components of the drugs used during the study;
  • Women in pregnancy or breastfeeding;
  • Body weight less than 15kg;
  • Estimated glomerular filtration rate (CKD-Epidemiology Collaboration, CKD-EPI) \<30 mL / min;
  • Aspartate aminotransaminase (AST) or alanine aminotransaminase (ALT)> 5 times the upper limit of normality;
  • Refusal to participate;
  • Refusal to sign the informed consent form.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
32 participants (actual)

Study arms

  • Active comparator
    Standard of care

    Standard of care (SOC) treatment

    Other: Standard of Care

  • Experimental
    SOC plus ivermectin 100 mcg/kg

    SOC plus ivermectin 100 mcg/kg

    Drug: Ivermectin

  • Experimental
    SOC plus ivermectin 200 mcg/kg

    SOC plus ivermectin 200 mcg/kg

    Drug: Ivermectin

  • Experimental
    SOC plus ivermectin 400 mcg/kg

    SOC plus ivermectin 400 mcg/kg

    Drug: Ivermectin

Interventions

  • DrugIvermectin

    SOC plus different dosing regimens of Ivermectin

  • OtherStandard of Care

    Standard treatment for COVID-19

06

What researchers measure

Primary outcomes

  1. Undetectable viral load during 7 days of follow-up.

    Proportion of patients who achieved undetectable viral load during 7 days of follow-up.

    Time frame: 7 days following intervention

Secondary outcomes

  1. Viral load variation in the nasopharyngeal swab.

    Viral load variation in the nasopharyngeal swab during treatment.

    Time frame: 7 days following intervention.

  2. Time to undetectable SARS-CoV-2 viral load in the nasopharyngeal swab.

    Variation of serum lymphocyte counts during treatment.

    Time frame: 7 days following intervention.

  3. Incidence of Treatment-Emergent Self-reported Adverse Events

    Incidence of Treatment-Emergent Adverse Events as assessed by clinical history and physical examination

    Time frame: 28 days following intervention.

  4. Incidence of Treatment-Emergent Laboratory-based Adverse Events

    Incidence of Treatment-Emergent Adverse Events as assessed by laboratory tests

    Time frame: 28 days following intervention.

07

Study locations

2 sites
  • Hospital Univeristário da Universidade Federal de São Carlos (HU-UFSCar)
    São Carlos, São Paulo 13565-905, Brazil
  • Hospital Universitário da Universidade Federal de São Carlos (HU-UFSCar)
    São Carlos, São Paulo 13566-448, Brazil
08

References and documents

Publications

  • Pott-Junior H, Paoliello MMB, Miguel AQC, da Cunha AF, de Melo Freire CC, Neves FF, da Silva de Avo LR, Roscani MG, Dos Santos SS, Chacha SGF. Use of ivermectin in the treatment of Covid-19: A pilot trial. Toxicol Rep. 2021;8:505-510. doi: 10.1016/j.toxrep.2021.03.003. Epub 2021 Mar 9. PubMed 33723507 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 12, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04431466
Lead sponsor
Universidade Federal de Sao Carlos
Responsible party
Henrique Pott Junior (Professor, Universidade Federal de Sao Carlos) — Principal investigator
First posted
Jun 16, 2020
Start date
Jul 1, 2020
Primary completion
Dec 1, 2020
Completion
Dec 1, 2020
Last update
Oct 12, 2021

Study contacts

Henrique Pott Junior, MD PhD
principal investigator · Universidade Federal de Sao Carlos

Oversight

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

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

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