Toxicology Reports (Jan 2021)

Use of ivermectin in the treatment of Covid-19: A pilot trial

  • Henrique Pott-Junior,
  • Mônica Maria Bastos Paoliello,
  • Alice de Queiroz Constantino Miguel,
  • Anderson Ferreira da Cunha,
  • Caio Cesar de Melo Freire,
  • Fábio Fernandes Neves,
  • Lucimar Retto da Silva de Avó,
  • Meliza Goi Roscani,
  • Sigrid De Sousa dos Santos,
  • Silvana Gama Florêncio Chachá

Journal volume & issue
Vol. 8
pp. 505 – 510

Abstract

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Objectives: In this randomized open-label trial pilot study we assessed the antiviral effects and safety of various doses of ivermectin in patients with mild clinical symptoms of COVID-19. Methods: Patients were randomly assigned to receive standard of care (SOC) treatment at hospital admission; SOC plus ivermectin 100 mcg/kg; SOC plus ivermectin 200 mcg/kg; or SOC plus ivermectin 400 mcg/kg. The primary assessed endpoint was the proportion of patients who achieved two consecutive negative SARS-CoV-2 RT PCR tests within 7 days of the start of the dosing period. This study was registered at ClinicalTrials.gov (NCT04431466). Results: A total of 32 patients were enrolled and randomized to treatment. SOC treatment together with ivermectin did not result in any serious adverse events. All patients exhibited a reduction in SARS-CoV-2 viral load within 7 days; however, those who received ivermectin had a more consistent decrease as compared to the SOC alone group, characterized by a shorter time for obtaining two consecutive negative SARS-CoV-2 RT PCR tests. Conclusions: Ivermectin is safe in patients with SARS-CoV-2, reducing symptomatology and the SARS-CoV-2 viral load. This antiviral effect appears to depend on the dose used, and if confirmed in future studies, it suggests that ivermectin may be a useful adjuvant to the SOC treatment in patients with mild COVID-19 symptoms.

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