Cochrane · systematic review · CD003869

Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases

Tsao, MN, Xu, W, Wong, RKS, et al. · Cochrane Database of Systematic Reviews · 2018 · Cochrane Library

SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
24
current version
GRADE rated
24
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 15 · 62.5%High 9 · 37.5%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Altered WBRT fractionation schedules compared with WBRT control for treatment of newly diagnosed multiple brain metastases

Population: patients with newly diagnosed multiple brain metastases
6 questions
OutcomeEffectEvidenceStatus / GRADE
Overall survival: lower‐dose WBRT vs control WBRT (3000 cGy/10 daily fractions)No. of participants: 705(3 RCTs)
Altered WBRT fractionation schedules vs WBRT control
HR 1.21 [1.04, 1.4]NRModerate
Downgraded: inconsistency
Overall survival: higher‐dose WBRT vs control (3000 cGy/10 daily fractions)No. of participants: 846(4 RCTs)
Altered WBRT fractionation schedules vs WBRT control
HR 0.97 [0.83, 1.12]NRModerate
Downgraded: inconsistency
Overall survival: WBRT 4000 cGy/20 fractions BID vs control WBRT (2000 cGy/4‐5 daily fractions)No. of participants: 203(2 RCTs)
Altered WBRT fractionation schedules vs WBRT control
HR 1.18 [0.89, 1.56]NRModerate
Downgraded: inconsistency
Adverse effectsNo. of participants: 1754(9 RCTs)
Altered WBRT fractionation schedules vs WBRT control
no estimate extractedNRHigh
Symptom controlNo. of participants: 2877(7 RCTs)
Altered WBRT fractionation schedules vs WBRT control
no estimate extractedNRModerate
Downgraded: risk of bias, inconsistency
Overall brain controlNo. of participants: 203(2 RCTs)
Altered WBRT fractionation schedules vs WBRT control
no estimate extractedNRModerate
Downgraded: risk of bias, inconsistency

Altered WBRT fractionation schedules compared with WBRT control: neurological function improvement for treatment of newly diagnosed multiple brain metastases

Population: patients with newly diagnosed multiple brain metastases
2 questions
OutcomeEffectEvidenceStatus / GRADE
Neurological function improvement: lower‐dose WBRT vs control dose WBRT (3000 cGy/10 fractions)No. of participants: 1612(5 RCTs)
Altered WBRT fractionation schedules vs WBRT control: neurological function improvement
OR 1.74 [1.06, 2.84]NRModerate
Neurological function improvement: higher‐dose WBRT vs control dose WBRT (3000 cGy/10 fractions)No. of participants: 1480(4 RCTs)
Altered WBRT fractionation schedules vs WBRT control: neurological function improvement
OR 1.14 [0.92, 1.42]NRModerate

WBRT with radiosensitisers (radiosen) compared with WBRT alone for treatment of newly diagnosed multiple brain metastases

Population: patients with newly diagnosed multiple brain metastases
5 questions
OutcomeEffectEvidenceStatus / GRADE
Overall survivalNo. of participants: 2631(8 RCTs)
WBRT with radiosensitisers (radiosen) vs WBRT alone
HR 1.05 [0.99, 1.12]NRModerate
Downgraded: inconsistency
Brain tumour response rates: complete response (CR) and partial response (PR) combinedNo. of participants: 847(6 RCTs)
WBRT with radiosensitisers (radiosen) vs WBRT alone
OR 0.84 [0.63, 1.11]NRHigh
Adverse effectsNo. of participants: 2631(8 RCTs)
WBRT with radiosensitisers (radiosen) vs WBRT alone
no estimate extractedNRHigh
Quality of lifeNo. of participants: 966(3 RCTs)
WBRT with radiosensitisers (radiosen) vs WBRT alone
no estimate extractedNRModerate
Downgraded: risk of bias, inconsistency
Symptom controlNo. of participants: 1814(3 RCTs)
WBRT with radiosensitisers (radiosen) vs WBRT alone
no estimate extractedNRModerate
Downgraded: risk of bias, inconsistency

WBRT and radiosurgery compared with WBRT for treatment of newly diagnosed multiple brain metastases

Population: patients with newly diagnosed multiple brain metastases
4 questions
OutcomeEffectEvidenceStatus / GRADE
Overall survivalNo. of participants: 358(2 RCTs)
WBRT and radiosurgery vs WBRT
HR 0.61 [0.27, 1.39]NRModerate
Downgraded: inconsistency
1‐Year overall brain control ratesNo. of participants: 400(3 RCTs)
WBRT and radiosurgery vs WBRT
HR 0.39 [0.25, 0.6]NRHigh
Adverse effectsNo. of participants: 400(3 RCTs)
WBRT and radiosurgery vs WBRT
no estimate extractedNRHigh
Intracranial progression‐free durationNo. of participants: 400(3 RCTs)
WBRT and radiosurgery vs WBRT
no estimate extractedNRHigh

Radiosurgery alone compared with WBRT and radiosurgery for treatment of newly diagnosed multiple brain metastases

Population: patients with newly diagnosed multiple brain metastases
7 questions
OutcomeEffectEvidenceStatus / GRADE
Overall survivalNo. of participants: 403(3 RCTs)
Radiosurgery alone vs WBRT and radiosurgery
HR 1 [0.8, 1.25]NRModerate
Downgraded: inconsistency
1‐Year radiosurgery‐targeted lesion controlNo. of participants: 602(4 RCTs)
Radiosurgery alone vs WBRT and radiosurgery
HR 2.73 [1.87, 3.99]NRHigh
1‐Year distant brain controlNo. of participants: 602(4 RCTs)
Radiosurgery alone vs WBRT and radiosurgery
HR 2.34 [1.73, 3.18]NRHigh
Adverse effectsNo. of participants: 602(4 RCTs)
Radiosurgery alone vs WBRT and radiosurgery
no estimate extractedNRHigh
NeurocognitionNo. of participants: 403(3 RCTs)
Radiosurgery alone vs WBRT and radiosurgery
no estimate extractedNRModerate
Downgraded: risk of bias, inconsistency
Neurological functionNo. of participants: 544(3 RCTs)
Radiosurgery alone vs WBRT and radiosurgery
no estimate extractedNRModerate
Downgraded: risk of bias, inconsistency
Quality of lifeNo. of participants: 271(2 RCTs)
Radiosurgery alone vs WBRT and radiosurgery
no estimate extractedNRModerate
Downgraded: risk of bias, inconsistency