Cochrane · systematic review · CD011790

Pregabalin for pain in fibromyalgia in adults

Derry, S, Cording, M, Wiffen, PJ, et al. · Cochrane Database of Systematic Reviews · 2016 · 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
12
current version
GRADE rated
12
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 4 · 33.3%Low 0 · 0%Moderate 0 · 0%High 8 · 66.7%

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

Pregabalin compared with placebo for fibromyalgia in studies of classic design

Population: adults with fibromyalgia enrolled in studies of classic design
8 questions
OutcomeEffectEvidenceStatus / GRADE
‘Substantial benefit’ (at least 50% reduction in pain)
Pregabalin vs placebo
no estimate extracted5 studies · 1874 participantsHigh
‘Substantial benefit’ (PGIC very much improved)
Pregabalin vs placebo
no estimate extracted5 studies · 1869 participantsHigh
‘Moderate benefit’ (at least 30% reduction in pain)
Pregabalin vs placebo
no estimate extracted5 studies · 1874 participantsHigh
‘Moderate benefit’ (PGIC much or very much improved)
Pregabalin vs placebo
no estimate extracted5 studies · 1869 participantsHigh
Withdrawals due to lack of efficacy
Pregabalin vs placebo
no estimate extracted5 studies · 1874 participantsHigh
Withdrawals due to adverse events
Pregabalin vs placebo
no estimate extracted5 studies · 1874 participantsHigh
Serious adverse events
Pregabalin vs placebo
no estimate extracted3 studies · 1238 participantsVery low
Death
Pregabalin vs placebo
no estimate extracted6 studies · 3460 participantsVery low

Pregabalin compared with placebo for fibromyalgia in enriched enrolment randomised withdrawal (EERW) studies

Population: adults with fibromyalgia enrolled in EERW studies
4 questions
OutcomeEffectEvidenceStatus / GRADE
Maintenance of initial therapeutic response of at least 30% pain intensity reduction over baseline and continued treatment at 13 or 26 weeks (equivalent to 'moderate benefit')
Pregabalin vs placebo
no estimate extracted2 studies · 687 participantsHigh
Participants experiencing at least 1 adverse event
Pregabalin vs placebo
no estimate extracted2 studies · 687 participantsHigh
Serious adverse events
Pregabalin vs placebo
no estimate extracted2 studies · 687 participantsVery low
Death
Pregabalin vs placebo
no estimate extracted2 studies · 687 participantsVery low