Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,062 questions · 1,113 findings · 171 reviews · Headline outcomes only

No studies found 161 · 14.5%GRADE not reported 41 · 3.7%Very low 269 · 24.2%Low 321 · 28.8%Moderate 252 · 22.6%High 69 · 6.2%

Altered WBRT fractionation schedules vs WBRT control

Overall survival: higher‐dose WBRT vs control (3000 cGy/10 daily fractions)No. of participants: 846(4 RCTs) · patients with newly diagnosed multiple brain metastases

Altered WBRT fractionation schedules probably leads to higher overall survival: lower‐dose WBRT vs control WBRT (3000 cGy/10 daily… compared with WBRT control (moderate certainty).

2 findings from 1 review

WBRT with radiosensitisers (radiosen) vs WBRT

Brain tumour response rates: complete response (CR) and partial response (PR) combinedNo. of participants: 847(6 RCTs) · patients with newly diagnosed multiple brain metastases

WBRT with radiosensitisers (radiosen) showed no clear difference in brain tumour response rates: complete response (CR) and partial… compared with WBRT alone (high certainty).

1 finding from 1 review

Whole brain radiation therapy (WBRT) + stereotactic radiosurgery (SRS) vs WBRT

Overall survivalNo. of participants: 2631(8 RCTs) · patients with newly diagnosed multiple brain metastases

WBRT and radiosurgery showed no clear difference in overall survivalNo. of participants: 358(2 RCTs) compared with WBRT (moderate certainty).

1 finding from 1 review

Whole brain radiation therapy (WBRT) + stereotactic radiosurgery (SRS) vs WBRT

1‐Year overall brain control ratesNo. of participants: 400(3 RCTs) · patients with newly diagnosed multiple brain metastases

WBRT and radiosurgery leads to lower 1‐Year overall brain control ratesNo. of participants: 400(3 RCTs) compared with WBRT (high certainty).

1 finding from 1 review

Radiosurgery alone vs WBRT and radiosurgery

1‐Year radiosurgery‐targeted lesion controlNo. of participants: 602(4 RCTs) · patients with newly diagnosed multiple brain metastases

Radiosurgery alone leads to higher 1‐Year radiosurgery‐targeted lesion controlNo. of participants:… compared with WBRT and radiosurgery (high certainty).

1 finding from 1 review

Radiosurgery alone vs WBRT and radiosurgery

1‐Year distant brain controlNo. of participants: 602(4 RCTs) · patients with newly diagnosed multiple brain metastases

Radiosurgery alone leads to higher 1‐Year distant brain controlNo. of participants: 602(4 RCTs) compared with WBRT and radiosurgery (high certainty).

1 finding from 1 review