Cochrane · systematic review · CD007791

Pharmacological treatments for Friedreich ataxia

Kearney, M, Orrell, RW, Fahey, M, et al. · Cochrane Database of Systematic Reviews · 2016 · 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
6
current version
GRADE rated
5
No studies
1
Included studies
NR
No studies 1 · 16.7%Ungraded 0 · 0%Very low 2 · 33.3%Low 3 · 50%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

Antioxidant versus placebo for Friedreich ataxia

Population: people with Friedreich ataxia
6 questions
OutcomeEffectEvidenceStatus / GRADE
Ataxia rating score ICARS; range 0 to 100)
Antioxidant vs placebo
no estimate extracted2 studies · 72 participantsLow
Downgraded: risk of bias, imprecision, inconsistency, publication bias
Ejection fraction
Antioxidant vs placebo
no estimate extracted1 study · 28 participantsVery low
Downgraded: imprecision, indirectness
End‐diastolic interventricular septal thickness (IVSTd) Measured in mm
Antioxidant vs placebo
no estimate extracted2 studies · 72 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Left ventricular mass (LVM) Measured in g
Antioxidant vs placebo
no estimate extracted1 study · 28 participantsLow
Downgraded: imprecision, indirectness, publication bias
Survival (not measured)
Antioxidant vs placebo
no estimate extractedNRNo studies
Severe adverse events
Antioxidant vs placebo
RR 1 [0.07, 15]2 studies · 72 participantsLow
Downgraded: imprecision