Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

311 questions · 322 findings · 24 reviews · Headline outcomes only

No studies found 78 · 24.2%GRADE not reported 12 · 3.7%Very low 76 · 23.6%Low 76 · 23.6%Moderate 65 · 20.2%High 15 · 4.7%

RBD‐specific polyclonal F(ab') 2 fragments of equine antibodies (EpAbs) vs saline placebo

All‐cause mortality (by day 28) · individuals with moderate or severe COVID‐19

RBD‐specific polyclonal F(ab') 2 fragments of equine antibodies… showed no clear difference in all‐cause mortality (by day 28) compared with saline placebo (low certainty).

1 finding from 1 review

RBD‐specific polyclonal F(ab') 2 fragments of equine antibodies (EpAbs) vs saline placebo

Worsening of clinical status (expressed as new need for IMV, admission to ICU, or death by day 28) · individuals with moderate or severe COVID‐19

RBD‐specific polyclonal F(ab') 2 fragments of equine antibodies… showed no clear difference in worsening of clinical status (expressed as new need for IMV,… compared with saline placebo (low certainty).

1 finding from 1 review

IVIg vs SCIg

Induction of labour · people with multifocal motor neuropathy

The review found no eligible studies for this question.

1 finding from 1 review

IVIg vs SCIg

Proportion of IVIg‐treated participants with an increase in disability during controlled IVIg withdrawal · people with multifocal motor neuropathy

The review found no eligible studies for this question.

1 finding from 1 review

IVIg vs SCIg

Adverse events · people with multifocal motor neuropathy

The review found no eligible studies for this question.

1 finding from 1 review

IVIg vs SCIg

Proportion of participants with side effects attributable to treatment · people with multifocal motor neuropathy

It is very uncertain whether IVIg changes proportion of participants with side effects attributable to treatment compared with SCIg (very low certainty).

1 finding from 1 review

IVIg vs placebo

Proportion of participants with an improvement in disability scale used in the original study · people with multifocal motor neuropathy

IVIg showed no clear difference in proportion of participants with an improvement in disability scale… compared with placebo (low certainty).

1 finding from 1 review

IVIg vs placebo

Proportion of participants with an improvement of muscle strength · people with multifocal motor neuropathy

IVIg may leads to higher proportion of participants with an improvement of muscle strength compared with placebo (low certainty).

1 finding from 1 review

IVIg vs placebo

Proportion of participants with an improvement in disability at 12 months or later · people with multifocal motor neuropathy

The review found no eligible studies for this question.

1 finding from 1 review

IVIg vs placebo

Proportion of participants in which at least 1 conduction block resolved after therapy · people with multifocal motor neuropathy

IVIg showed no clear difference in proportion of participants in which at least 1 conduction block… compared with placebo (low certainty).

1 finding from 1 review

IVIg vs placebo

Proportion of IVIg‐treated participants with an increase in disability during controlled IVIg withdrawal · people with multifocal motor neuropathy

IVIg probably leads to higher proportion of IVIg‐treated participants with an increase in… compared with placebo (moderate certainty).

1 finding from 1 review

IVIg vs placebo

Proportion of IVIg‐treated participants with a decrease in muscle strength during controlled IVIg withdrawal · people with multifocal motor neuropathy

IVIg probably leads to lower proportion of IVIg‐treated participants with a decrease in muscle… compared with placebo (moderate certainty).

1 finding from 1 review

IVIg vs placebo

Proportion of participants with side effects attributable to treatment · people with multifocal motor neuropathy

It is very uncertain whether IVIg changes proportion of participants with side effects attributable to treatment compared with placebo (very low certainty).

1 finding from 1 review

Anti‐IL13 or anti‐IL4 agents vs placebo

Exacerbation requiring ED or hospital visit Weighted mean duration of studies: 31 weeks · people with asthma

Anti‐IL13 or anti‐IL4 agents probably leads to lower exacerbation requiring hospitalisation or ED visit compared with placebo (moderate certainty).

1 finding from 1 review