Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

185 questions · 187 findings · 30 reviews

No studies found 32 · 17.1%GRADE not reported 4 · 2.1%Very low 58 · 31%Low 59 · 31.6%Moderate 29 · 15.5%High 5 · 2.7%

Infliximab combined with purine analogues vs purine analogues

Withdrawals due to adverse events · Participants with Crohn's disease in remission

It is very uncertain whether infliximab combined with purine analogues changes withdrawal due to adverse events (at 48 weeks) compared with purine analogues (very low certainty).

1 finding from 1 review

Three infusions of natalizumab (300 mg) and two infusions of infliximab (5 mg/kg) vs placebo and two infusions of infliximab

Withdrawals due to adverse outcomes · Participants with active Crohn's disease despite current treatment with infliximab

Three infusions of natalizumab (300 mg) and two infusions of… showed no clear difference in withdrawal due to adverse events up to week 10 compared with placebo and two infusions of infliximab (low certainty).

1 finding from 1 review

Infliximab combined with purine analogues vs purine analogues

Serious adverse events (at 48 weeks to 2 years) · Participants with Crohn's disease in remission

It is very uncertain whether infliximab combined with purine analogues changes serious adverse events (at 48 weeks to 2 years) compared with purine analogues (very low certainty).

1 finding from 1 review

Infliximab vs placebo

Withdrawals due to adverse events · patients with Crohn's disease (mixed disease activity population with clinical response at baseline)

It is very uncertain whether infliximab changes withdrawal due to adverse events (at 32‐54 weeks) compared with placebo (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Stem Cell vs placebo or control

Total adverse events · Induction of Remission in Medically Refractory Crohn's Disease

It is very uncertain whether summary of findings table ‐ Stem Cell changes total Adverse Events compared with placebo or Control (very low certainty).

1 finding from 1 review

Intervention not reported

Adverse events rate‐ Upper GI (nausea, vomiting, halitosis, heartburn, dyspepsia, dysgeusia and bloating) · Crohn's disease patients in remission

The intervention probably leads to higher adverse events rate‐ Upper GI (nausea, vomiting, halitosis,… (moderate certainty).

1 finding from 1 review

Summary of findings table ‐ Stem Cell vs placebo or control

Withdrawals due to adverse events · Induction of Remission in Medically Refractory Crohn's Disease

It is very uncertain whether summary of findings table ‐ Stem Cell changes withdrawal due to adverse events compared with placebo or Control (very low certainty).

1 finding from 1 review

Certolizumab pegol vs placebo

Any severe adverse event during maintenance treatment · people with Crohn's disease who responded to CZP remission‐induction treatment

Certolizumab pegol showed no clear difference in serious adverse events during remission maintenance treatment(1 RCT,… compared with placebo (low certainty).

1 finding from 1 review