Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

124 questions · 139 findings · 15 reviews

No studies found 31 · 22.3%GRADE not reported 14 · 10.1%Very low 27 · 19.4%Low 39 · 28.1%Moderate 23 · 16.5%High 5 · 3.6%

Methotrexate vs placebo

Significant adverse events · people with inclusion body myositis

Methotrexate probably leads to higher significant adverse events compared with placebo (moderate certainty).

1 finding from 1 review

Cytarabine plus high‐dose methotrexate vs high‐dose methotrexate alone

Mortality Median · patients with primary CNS lymphoma

Cytarabine plus high‐dose methotrexate showed no clear difference in mortality (median 3 years) compared with high‐dose methotrexate alone (moderate certainty).

1 finding from 1 review

Cytarabine plus high‐dose methotrexate vs high‐dose methotrexate alone

Progression/relapse · patients with primary CNS lymphoma

Cytarabine plus high‐dose methotrexate probably leads to lower progression/relapse (median 3 years) compared with high‐dose methotrexate alone (moderate certainty).

1 finding from 1 review

Cytarabine plus high‐dose methotrexate vs high‐dose methotrexate alone

Treatment‐related mortality · patients with primary CNS lymphoma

Cytarabine plus high‐dose methotrexate showed no clear difference in treatment‐related mortality compared with high‐dose methotrexate alone (moderate certainty).

1 finding from 1 review

Cytarabine plus high‐dose methotrexate vs high‐dose methotrexate alone

Severe adverse effects (grade 3+): Infection · patients with primary CNS lymphoma

Cytarabine plus high‐dose methotrexate probably leads to higher infections (grade 3 to 4) compared with high‐dose methotrexate alone (moderate certainty).

1 finding from 1 review

Oral methotrexate vs placebo

Primary outcome: complete clinical response (malar/discoid rash) · patients with cutaneous disease in systemic lupus erythematosus

Oral methotrexate may leads to higher primary outcome: complete clinical response (malar/discoid rash) compared with placebo (low certainty).

1 finding from 1 review