Cochrane · systematic review · CD003726

Tramadol for neuropathic pain in adults

Duehmke, RM, Derry, S, Wiffen, PJ, et al. · Cochrane Database of Systematic Reviews · 2017 · Cochrane Library

NeuromuscularAMSTAR 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
7
current version
GRADE rated
7
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 3 · 42.9%Low 4 · 57.1%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

Tramadol compared with placebo for neuropathic pain

Population: adults with neuropathic pain (any origin)
7 questions
OutcomeEffectEvidenceStatus / GRADE
At least 30% reduction in pain
Tramadol vs placebo
no estimate extracted2 studies · 157 participantsLow
Downgraded: imprecision
At least 50% reduction in pain
Tramadol vs placebo
RR 2.2 [1.02, 4.6]3 studies · 265 participantsLow
Downgraded: imprecision
PGIC much or very much improved
Tramadol vs placebo
no estimate extracted1 study · 35 participantsVery low
Downgraded: imprecision
Withdrawal due to adverse event
Tramadol vs placebo
RR 4.1 [2, 8.4]6 studies · 485 participantsLow
Downgraded: imprecision
Participants experiencing any adverse event
Tramadol vs placebo
RR 1.6 [1.2, 2.1]4 studies · 266 participantsLow
Downgraded: imprecision
Serious adverse events
Tramadol vs placebo
no estimate extractedNRVery low
Downgraded: imprecision
Death
Tramadol vs placebo
no estimate extractedNRVery low