Cochrane · systematic review · CD015084

Prebiotics for induction and maintenance of remission in ulcerative colitis

Sinopoulou, V, Gordon, M, Gregory, V, et al. · Cochrane Database of Systematic Reviews · 2024 · Cochrane Library

GutAMSTAR 2: not assessed
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
30
current version
GRADE rated
18
No studies
12
Included studies
NR
No studies 12 · 40%Ungraded 0 · 0%Very low 16 · 53.3%Low 2 · 6.7%Moderate 0 · 0%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

Prebiotics compared to placebo for induction of remission

Population: people with mild‐to‐moderate disease (Rachmilewitz index) or active disease (SCCAI score of 4 to 10)
5 questions
OutcomeEffectEvidenceStatus / GRADE
Clinical remission (14 days)
Prebiotics vs placebo
RR 1.05 [0.57, 1.94]1 study · 19 participantsVery low
Downgraded: risk of bias, imprecision
Clinical improvement (Rachmilewitz index) (14 days)
Prebiotics vs placebo
no estimate extracted1 study · 15 participantsVery low
Downgraded: risk of bias, imprecision
Quality of life (IBDQ) (2 or 3 months)
Prebiotics vs placebo
no estimate extracted1 study · 8 participantsVery low
Downgraded: risk of bias, imprecision
Total adverse events
Prebiotics vs placebo
no estimate extractedNRNo studies
Withdrawals due to adverse events (14 days to 2 or 3 months)
Prebiotics vs placebo
RR 2.73 [0.51, 14.55]2 studies · 31 participantsVery low
Downgraded: risk of bias, imprecision

Inulin and oligofructose 15 g compared to inulin and oligofructose 7.5 g daily for induction of remission

Population: people with mild to moderately active ulcerative colitis
5 questions
OutcomeEffectEvidenceStatus / GRADE
Clinical remission (9 weeks)
Inulin and oligofructose 15 g vs inulin and oligofructose 7.5 g daily
RR 4.27 [1.07, 16.96]1 study · 31 participantsVery low
Downgraded: risk of bias, imprecision
Clinical improvement (Mayo score) (9 weeks)
Inulin and oligofructose 15 g vs inulin and oligofructose 7.5 g daily
RR 2.67 [1.06, 6.7]1 study · 31 participantsVery low
Downgraded: risk of bias, imprecision
Quality of life
Inulin and oligofructose 15 g vs inulin and oligofructose 7.5 g daily
no estimate extractedNRNo studies
Total adverse events (9 weeks)
Inulin and oligofructose 15 g vs inulin and oligofructose 7.5 g daily
RR 1.71 [0.72, 4.06]1 study · 31 participantsVery low
Downgraded: risk of bias, imprecision
Withdrawals due to adverse events (9 weeks)
Inulin and oligofructose 15 g vs inulin and oligofructose 7.5 g daily
RR 0.53 [0.11, 2.5]1 study · 31 participantsVery low
Downgraded: risk of bias, imprecision

Prebiotics and anti‐inflammatory therapy compared to anti‐inflammatory therapy for induction of remission

Population: people with mild‐to‐moderate ulcerative colitis based on Truelove and Witts criteria
5 questions
OutcomeEffectEvidenceStatus / GRADE
Clinical remission
Prebiotics and anti‐inflammatory therapy vs anti‐inflammatory therapy
no estimate extractedNRNo studies
Clinical improvement (Lichtiger index) (4 weeks)
Prebiotics and anti‐inflammatory therapy vs anti‐inflammatory therapy
no estimate extracted1 study · 18 participantsVery low
Downgraded: risk of bias, imprecision
Quality of life
Prebiotics and anti‐inflammatory therapy vs anti‐inflammatory therapy
no estimate extractedNRNo studies
Total adverse events
Prebiotics and anti‐inflammatory therapy vs anti‐inflammatory therapy
no estimate extractedNRNo studies
Withdrawals due to adverse events
Prebiotics and anti‐inflammatory therapy vs anti‐inflammatory therapy
no estimate extractedNRNo studies

Prebiotics compared to placebo for maintenance of remission

Population: people with histologically confirmed diagnosis of ulcerative colitis in remission
5 questions
OutcomeEffectEvidenceStatus / GRADE
Clinical relapse (6 months)
Prebiotics vs placebo
RR 1.36 [0.79, 2.31]1 study · 89 participantsLow
Downgraded: imprecision
Clinical improvement (partial Mayo score) (60 days)
Prebiotics vs placebo
no estimate extracted1 study · 30 participantsVery low
Downgraded: risk of bias, imprecision
Quality of life (IBDQ) (60 days)
Prebiotics vs placebo
no estimate extracted1 study · 30 participantsVery low
Downgraded: risk of bias, imprecision
Total adverse events (6 months)
Prebiotics vs placebo
RR 1.68 [1.18, 2.4]1 study · 89 participantsLow
Downgraded: imprecision
Withdrawals due to adverse events (60 days to 6 months)
Prebiotics vs placebo
RR 2.57 [1.15, 5.73]2 studies · 125 participantsVery low
Downgraded: risk of bias, imprecision

Prebiotics compared to probiotics for maintenance of remission

Population: people in remission or with mildly activeulcerative colitis
5 questions
OutcomeEffectEvidenceStatus / GRADE
Clinical relapse (4 weeks)
Prebiotics vs probiotics
no estimate extractedNRNo studies
Clinical improvement
Prebiotics vs probiotics
no estimate extractedNRNo studies
Quality of life (IBDQ) (4 weeks)
Prebiotics vs probiotics
no estimate extracted1 study · 62 participantsVery low
Downgraded: risk of bias, imprecision
Total adverse events
Prebiotics vs probiotics
no estimate extractedNRNo studies
Withdrawals due to adverse events (4 weeks)
Prebiotics vs probiotics
RR 1 [0.44, 2.26]1 study · 80 participantsVery low
Downgraded: risk of bias, imprecision

Prebiotics compared to synbiotics for maintenance of remission

Population: people in remission or with mildly activeulcerative colitis
5 questions
OutcomeEffectEvidenceStatus / GRADE
Clinical relapse (4 weeks)
Prebiotics vs synbiotics
no estimate extractedNRNo studies
Clinical improvement
Prebiotics vs synbiotics
no estimate extractedNRNo studies
Quality of life (IBDQ) (4 weeks)
Prebiotics vs synbiotics
no estimate extracted1 study · 63 participantsVery low
Downgraded: risk of bias, imprecision
Total adverse events
Prebiotics vs synbiotics
no estimate extractedNRNo studies
Withdrawals due to adverse events (4 weeks)
Prebiotics vs synbiotics
RR 1.13 [0.48, 2.62]1 study · 80 participantsVery low
Downgraded: risk of bias, imprecision