Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

202 questions · 203 findings · 28 reviews · Haematology · Headline outcomes only

No studies found 46 · 22.7%GRADE not reported 14 · 6.9%Very low 31 · 15.3%Low 68 · 33.5%Moderate 34 · 16.7%High 10 · 4.9%

Bamlanivimab vs placebo

Clinical progression: need for NIV, IMV, ECMO, or renal replacement therapy at day 5 (group 5, 6 or 7) · hospitalised individuals with COVID‐19 (moderate to severe disease)

It is very uncertain whether bamlanivimab changes clinical progression: need for NIV, IMV, ECMO, or renal replacement… compared with placebo (very low certainty).

1 finding from 1 review

Prophylactic platelet transfusion at threshold of 10,000 vs higher transfusion threshold (20,000 or 30,000)

Bleeding: Number of days on which a significant bleeding event occurred3 · People with a haematological disorder
2 findings from 2 reviews · compare the 2 reviews

Intervention not reported

All‐cause mortality at 31 to 100 days · Adults with haematological malignancies treated with intensive chemotherapy or radiotherapy, or both, with or without haematopoietic stem…

It is very uncertain whether the intervention changes all‐cause mortality at 31 to 100 days (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs placebo or usual care

All‐cause mortality at up to day 28 ‐ total · individuals with moderate to severe disease

Summary of findings table ‐ Convalescent plasma showed no clear difference in all‐cause mortality at up to day 28 ‐ total compared with placebo or standard care alone (high certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs human immunoglobulin

All‐cause mortality at up to day 28 · individuals with moderate to severe disease

Summary of findings table ‐ Convalescent plasma showed no clear difference in all‐cause mortality at up to day 28 compared with human immunoglobulin (low certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs placebo or usual care

All‐cause mortality at up to day 28 · outpatients withmild disease

It is very uncertain whether summary of findings table ‐ Convalescent plasma changes all‐cause mortality at up to day 28 compared with placebo or standard care alone (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs placebo or usual care

Clinical worsening: need for invasive mechanical ventilation, or death at up to day 28 · individuals with moderate to severe disease

Summary of findings table ‐ Convalescent plasma showed no clear difference in clinical worsening: need for invasive mechanical ventilation, or… compared with placebo or standard care alone (high certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs placebo or usual care

Admission to hospital or death within 28 days · outpatients withmild disease

Summary of findings table ‐ Convalescent plasma showed no clear difference in admission to hospital or death within 28 days compared with placebo or standard care alone (low certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs placebo or usual care

Time to symptom resolution · outpatients withmild disease

Summary of findings table ‐ Convalescent plasma showed no clear difference in time to symptom resolution (absolute effect calculated for day 12) compared with placebo or standard care alone (low certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs standard plasma

All‐cause mortality at up to day 28 · outpatients withmild disease

It is very uncertain whether summary of findings table ‐ Convalescent plasma changes all‐cause mortality at up to day 28 compared with standard plasma (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs standard plasma

Admission to hospital or death within 28 days · outpatients withmild disease

Summary of findings table ‐ Convalescent plasma probably leads to lower admission to hospital or death within 28 days compared with standard plasma (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs standard plasma

All‐cause mortality at up to day 28 · individuals with moderate to severe disease

It is very uncertain whether summary of findings table ‐ Convalescent plasma changes all‐cause mortality at up to day 28 compared with standard plasma (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Convalescent plasma vs standard plasma

Clinical worsening: need for invasive mechanical ventilation, or death at up to day 28 · individuals with moderate to severe disease

It is very uncertain whether summary of findings table ‐ Convalescent plasma changes clinical worsening: need for invasive mechanical ventilation, or… compared with standard plasma (very low certainty).

1 finding from 1 review

Remdesivir and standard care vs placebo or usual care

All‐cause mortality at up to day 281 · hospitalised individuals with COVID‐19 (moderate to severe disease)

Remdesivir and standard care showed no clear difference in all‐cause mortality at up to day 281 compared with standard care (plus/minus placebo) (moderate certainty).

1 finding from 1 review

Remdesivir and standard care vs placebo or usual care

Admission to hospital or death within 28 days · non‐hospitalised adults with mild COVID‐19

Remdesivir and standard care probably leads to lower clinical worsening: participants admitted to hospital or deceased at… compared with standard care (plus/minus placebo) (moderate certainty).

1 finding from 1 review