Cochrane · systematic review · CD010501

Pyridoxal 5 phosphate for neuroleptic‐induced tardive dyskinesia

Adelufosi, AO, Abayomi, O, Ojo, TMF · Cochrane Database of Systematic Reviews · 2015 · Cochrane Library

SchizophreniaAMSTAR 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
6
current version
GRADE rated
6
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 6 · 100%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

Pyridoxal 5 phosphate (vitamin B6) compared with Placebo for neuroleptic‐induced tardive dyskinesia

Population: patients with neuroleptic‐induced tardive dyskinesia
6 questions
OutcomeEffectEvidenceStatus / GRADE
Clinical efficacy ‐ improvement (> 40%) in ESRS scores from baseline ESRS1
Pyridoxal 5 phosphate (vitamin B6) vs Placebo
RR 19.97 [2.87, 139.19]2 studies · 65 participantsLow
Downgraded: risk of bias, imprecision
Global: Other adverse effects than tardive dyskinesia Self‐report by participants
Pyridoxal 5 phosphate (vitamin B6) vs Placebo
RR 3.97 [0.2, 78.59]2 studies · 65 participantsLow
Downgraded: risk of bias, imprecision
Global: Discontinuation of Vitamin B6
Pyridoxal 5 phosphate (vitamin B6) vs Placebo
RR 8.72 [0.51, 149.75]2 studies · 65 participantsLow
Downgraded: risk of bias, imprecision
Tardive dyskinesia: Deterioration in tardive dyskinesia symptoms ESRS1
Pyridoxal 5 phosphate (vitamin B6) vs Placebo
RR 0.16 [0.01, 3.14]2 studies · 65 participantsLow
Downgraded: risk of bias, imprecision
General mental state: Positive psychiatric symptom score PANSS5. Scale from: 7 to 49.
Pyridoxal 5 phosphate (vitamin B6) vs Placebo
no estimate extracted1 study · 15 participantsLow
Downgraded: risk of bias, imprecision
General mental state: Negative psychiatric symptoms PANSS5. Scale from: 7 to 49.
Pyridoxal 5 phosphate (vitamin B6) vs Placebo
no estimate extracted1 study · 15 participantsLow
Downgraded: risk of bias, imprecision