Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,736 questions · 15,265 findings · 1,163 reviews · Headline outcomes only

No studies found 3,871 · 25.4%GRADE not reported 810 · 5.3%Very low 4,242 · 27.8%Low 3,879 · 25.4%Moderate 1,999 · 13.1%High 464 · 3%

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Azathioprine vs cyclophosphamide

Relapse · adults with renal vasculitis for maintenance therapy

Azathioprine showed no clear difference in relapse at 18 months compared with cyclophosphamide (moderate certainty).

2 findings from 1 review

Intervention not reported

Sustained remission · adults with renal vasculitis

The intervention may leads to higher sustained remission (low certainty).

1 finding from 1 review

Azathioprine vs cyclophosphamide

Serious adverse events · adults with renal vasculitis for maintenance therapy

Azathioprine showed no clear difference in serious adverse events compared with cyclophosphamide (moderate certainty).

1 finding from 1 review

Azathioprine vs methotrexate

Adverse event causing death or study drug discontinuation · adults with renal vasculitis for maintenance therapy

Azathioprine showed no clear difference in adverse events causing death or study drug discontinuation compared with methotrexate (low certainty).

1 finding from 1 review

Antibiotics vs placebo

Death at 6 months · adults with renal vasculitis for maintenance therapy

Antibiotics showed no clear difference in death at 6 months compared with placebo (low certainty).

1 finding from 1 review

Intervention not reported

Relapse · adults with renal vasculitis

The review found no eligible studies for this question.

1 finding from 1 review

Antibiotics vs placebo

Remission · adults with renal vasculitis for maintenance therapy

Antibiotics showed no clear difference in remission at one year compared with placebo (low certainty).

1 finding from 1 review

Antibiotics vs placebo

Discontinuation of medication due to adverse events · adults with renal vasculitis for maintenance therapy

Antibiotics showed no clear difference in adverse events causing study drug discontinuation compared with placebo (low certainty).

1 finding from 1 review