Cochrane · systematic review · CD008831

Probiotics for the prevention or treatment of chemotherapy‐ or radiotherapy‐related diarrhoea in people with cancer

Wei, D, Heus, P, van de Wetering, FT, 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
31
current version
GRADE rated
26
No studies
5
Included studies
NR
No studies 5 · 16.1%Ungraded 0 · 0%Very low 5 · 16.1%Low 15 · 48.4%Moderate 6 · 19.4%High 0 · 0%

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

Probiotics compared with placebo for prevention of diarrhoea in participants with cancer treated with radiotherapy (with or without chemotherapy)

Population: participants with cancer treated with radiotherapy (with or without chemotherapy)
9 questions
OutcomeEffectEvidenceStatus / GRADE
Any diarrhoea
Probiotics vs placebo
no estimate extracted3 studies · 771 participantsLow
Downgraded: risk of bias, imprecision
Quality of life
Probiotics vs placebo
no estimate extracted1 study · 72 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Diarrhoea grade 2 or higher
Probiotics vs placebo
RR 0.75 [0.55, 1.03]4 studies · 420 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Diarrhoea grade 3 or higher
Probiotics vs placebo
no estimate extracted3 studies · 793 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Diarrhoea grade 4
Probiotics vs placebo
no estimate extracted1 study · 226 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Time to rescue medication
Probiotics vs placebo
no estimate extracted1 study · 482 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Requiring rescue medication for diarrhoea
Probiotics vs placebo
RR 0.5 [0.15, 1.66]3 studies · 194 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Adverse events
Probiotics vs placebo
no estimate extracted5 studies · 902 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Mortality
Probiotics vs placebo
no estimate extracted5 studies · 902 participantsLow
Downgraded: risk of bias, imprecision, inconsistency

Probiotics compared with placebo for prevention of diarrhoea in participants with cancer treated with chemotherapy

Population: participants with cancer treated with chemotherapy
9 questions
OutcomeEffectEvidenceStatus / GRADE
Any diarrhoea
Probiotics vs placebo
RR 0.59 [0.36, 0.96]2 studies · 106 participantsLow
Quality of life ‐ not measured
Probiotics vs placebo
no estimate extractedNRNo studies
Diarrhoea grade 2 or higher
Probiotics vs placebo
RR 0.67 [0.22, 2.05]1 study · 46 participantsLow
Downgraded: imprecision
Diarrhoea grade 3 or higher
Probiotics vs placebo
RR 0.11 [0.01, 1.95]1 study · 46 participantsLow
Downgraded: imprecision
Diarrhoea grade 4
Probiotics vs placebo
RR 0.33 [0.01, 7.78]1 study · 46 participantsLow
Downgraded: imprecision
Time to rescue medication ‐ not measured
Probiotics vs placebo
no estimate extractedNRNo studies
Requiring rescue medication for diarrhoea
Probiotics vs placebo
no estimate extracted1 study · 46 participantsLow
Downgraded: imprecision
Adverse events
Probiotics vs placebo
no estimate extracted2 studies · 106 participantsLow
Downgraded: imprecision
Mortality
Probiotics vs placebo
no estimate extracted3 studies · 128 participantsLow
Downgraded: imprecision

Probiotics compared with other active treatment for prevention of diarrhoea in participants with cancer treated with radiotherapy (with or without chemotherapy)

Population: participants with cancer treated with radiotherapy (with or without chemotherapy)
7 questions
OutcomeEffectEvidenceStatus / GRADE
Any diarrhoea
Probiotics vs other active treatment
RR 0.3 [0.11, 0.81]1 study · 21 participantsVery low
Downgraded: risk of bias
Quality of life ‐ not measured
Probiotics vs other active treatment
no estimate extractedNRNo studies
Severity of diarrhoea: grade 3 or higher
Probiotics vs other active treatment
OR 0.38 [0.16, 0.89]1 study · 148 participantsLow
Downgraded: risk of bias
Time to rescue medication ‐ not measured
Probiotics vs other active treatment
no estimate extractedNRNo studies
Requiring rescue medication for diarrhoea
Probiotics vs other active treatment
RR 0.44 [0.22, 0.86]2 studies · 63 participantsVery low
Downgraded: risk of bias
Adverse events
Probiotics vs other active treatment
no estimate extracted3 studies · 211 participantsVery low
Downgraded: risk of bias
Mortality
Probiotics vs other active treatment
no estimate extracted3 studies · 211 participantsLow
Downgraded: risk of bias

Probiotics compared with placebo for treatment of diarrhoea due to radiotherapy (with or without chemotherapy) in participants with cancer

Population: participants with cancer treated with radiotherapy (with or without chemotherapy)
6 questions
OutcomeEffectEvidenceStatus / GRADE
Reduction in severity of diarrhoea
Probiotics vs placebo
no estimate extracted1 study · 205 participantsModerate
Downgraded: imprecision
Quality of life ‐ not measured
Probiotics vs placebo
no estimate extractedNRNo studies
Time to rescue medication (in hours)
Probiotics vs placebo
no estimate extracted1 study · 205 participantsModerate
Downgraded: imprecision
Requiring rescue medication for diarrhoea
Probiotics vs placebo
RR 0.74 [0.53, 1.03]1 study · 205 participantsModerate
Downgraded: imprecision
Adverse events
Probiotics vs placebo
no estimate extracted1 study · 205 participantsModerate
Downgraded: imprecision
Mortality
Probiotics vs placebo
no estimate extracted1 study · 205 participantsModerate
Downgraded: imprecision