Cochrane · systematic review · CD015219

Favipiravir for treating COVID‐19

Korula, P, Alexander, H, John, JSara, et al. · Cochrane Database of Systematic Reviews · 2024 · Cochrane Library

Infectious DiseasesAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
7
current version
GRADE rated
7
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 3 · 42.9%Low 4 · 57.1%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Favipiravir versus no treatment, supportive treatment, or other antiviral treatment for treating COVID‐19

Population: people with confirmed COVID‐19
7 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality – at 28 to 30 days, or in‐hospital
Favipiravir vs no treatment, supportive treatment, or other antiviral treatment
RR 0.84 [0.49, 1.46]11 studies · 3459 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Progression to invasive mechanical ventilation
Favipiravir vs no treatment, supportive treatment, or other antiviral treatment
RR 0.86 [0.68, 1.09]8 studies · 1383 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Need for admission to hospital (if ambulatory)
Favipiravir vs no treatment, supportive treatment, or other antiviral treatment
RR 1.04 [0.44, 2.46]4 studies · 670 participantsLow
Downgraded: imprecision, inconsistency
Time to clinical improvement (defined as time to a 2‐point reduction in patients’ admission status on WHO’s ordinal scale)
Favipiravir vs no treatment, supportive treatment, or other antiviral treatment
HR 1.13 [0.69, 1.83]4 studies · 721 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Progression to oxygen therapy
Favipiravir vs no treatment, supportive treatment, or other antiviral treatment
RR 1.2 [0.83, 1.75]2 studies · 543 participantsLow
Downgraded: imprecision, inconsistency
All adverse events
Favipiravir vs no treatment, supportive treatment, or other antiviral treatment
RR 1.27 [1.05, 1.54]18 studies · 4699 participantsLow
Downgraded: imprecision, inconsistency
Serious adverse events attributable to the drug
Favipiravir vs no treatment, supportive treatment, or other antiviral treatment
RR 1.04 [0.76, 1.42]12 studies · 3317 participantsLow
Downgraded: risk of bias, imprecision, inconsistency