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What do systematic reviews say?

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Evidence found and GRADE certainty

1,835 questions · 1,886 findings · 74 reviews · Skin

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No studies found 542 · 28.7%GRADE not reported 130 · 6.9%Very low 326 · 17.3%Low 434 · 23%Moderate 348 · 18.5%High 106 · 5.6%

Any systemic treatment vs placebo

Adalimumab · people with chronic plaque psoriasis

Any systemic treatment showed no clear difference in adalimumab compared with placebo (moderate certainty).

2 findings from 1 review

Any systemic treatment vs placebo

Brodalumab · people with chronic plaque psoriasis

Any systemic treatment showed no clear difference in brodalumab compared with placebo (moderate certainty).

2 findings from 1 review

Any systemic treatment vs placebo

Secukinumab · people with chronic plaque psoriasis

Any systemic treatment showed no clear difference in secukinumab compared with placebo (moderate certainty).

2 findings from 1 review

Triamcinolone acetonide 0.1% cream with occlusive dressing vs clobetasol cream 0.05% cream

Proportion of participants cleared or almost cleared ‐ · chronic palmoplantar pustulosis

It is very uncertain whether triamcinolone acetonide 0.1% cream with occlusive dressing changes proportion of participants cleared or almost cleared ‐ compared with clobetasol cream 0.05% cream (very low certainty).

1 finding from 1 review

Topical vitamin D derivative vs placebo

Proportion of participants with adverse effects ‐ measured over 8 weeks · chronic palmoplantar pustulosis

Topical vitamin D derivative showed no clear difference in proportion of participants with adverse effects ‐ measured over 8… compared with placebo (moderate certainty).

1 finding from 1 review

UVA1 vs narrowband UVB

Proportion of participants with adverse effects serious or severe enough to have caused withdrawal ‐ not reported · chronic palmoplantar pustulosis

The review found no eligible studies for this question.

1 finding from 1 review

UVA1 vs narrowband UVB

Proportion of participants with at least 50% improvement in their quality of life ‐ not reported · chronic palmoplantar pustulosis

The review found no eligible studies for this question.

1 finding from 1 review