Dr John Campbell: Best of 2021
Ivermectin for Prevention and Treatment of COVID-19 Infection
A Systematic Review, Meta-analysis, and Trial Sequential Analysis to Inform
Clinical Guidelines
Areas of uncertainty:
We assessed the efficacy of ivermectin treatment in reducing mortality, in secondary outcomes, and in chemoprophylaxis, among people with, or at high risk of, COVID-19 infection.
Background
The antiparasitic ivermectin, with antiviral and anti-inflammatory properties, has now been tested in numerous clinical trials. A 2018 application for ivermectin use for scabies gives a direct cost of $2.90 for 100 12-mg tablets. Most trials were registered, self-funded, and undertaken by clinicians.Areas of uncertainty:
We assessed the efficacy of ivermectin treatment in reducing mortality, in secondary outcomes, and in chemoprophylaxis, among people with, or at high risk of, COVID-19 infection.
Data sources:
We searched bibliographic databases up to April 25, 2021. Two review authors sifted for studies, extracted data, and assessed risk of bias. Meta-analyses were conducted and certainty of the evidence was assessed using the GRADE approach and additionally in trial sequential analyses for mortality. Twenty-four randomized controlled trials involving 3406 participants met review inclusion.
- 24 randomized controlled trials
- N = 3,406 participants
- Ivermectin reduced risk of death compared with no ivermectin
- Meta-analysis of 15 trials (n = 2,438)
GRADE approach
https://training.cochrane.org/grade-approach
Certainty in evidence: Moderate
- GRADE (Grading of Recommendations, Assessment, Development and Evaluations)
- GRADE has four levels of evidence, certainty in evidence:
- very low
- low
- moderate
- high
Certainty in evidence: Moderate
- Ivermectin reduced risk of death compared with no ivermectin
- Meta-analysis of 15 trials (n = 2,438)
- Ivermectin verses no ivermectin in hospital patients
- Ivermectin, 2.3% vs No ivermectin, 7.8%
Certainty of evidence: Low
- Ivermectin prophylaxis reduced COVID-19 infection
- 3 trials, n = 738
- Average reduction 86%
Conclusions
- Moderate-certainty evidence finds that large reductions in COVID-19 deaths are possible using ivermectin.
- Using ivermectin early in the clinical course may reduce numbers progressing to severe disease.
- The apparent safety and low cost suggest that ivermectin is likely to have a significant impact on the SARS-CoV-2 pandemic globally.
Related:
Dr Tess Lawrie Ivermectin Review
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