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Evidence found and GRADE certainty

4,710 questions · 14,842 findings · 1,394 reviews

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No studies found 2,880 · 19.4%GRADE not reported 1,413 · 9.5%Very low 3,103 · 20.9%Low 3,870 · 26.1%Moderate 2,663 · 17.9%High 913 · 6.2%

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Summary of findings table ‐ Oral classical immunosuppressants (prednisolone or cyclosporine) vs placebo

Short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of · adults with alopecia areata

It is very uncertain whether summary of findings table ‐ Oral classical immunosuppressants… changes short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of compared with placebo (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Subcutaneous biologics (dupilumab) vs placebo

Short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of · adults with alopecia areata

Summary of findings table ‐ Subcutaneous biologics (dupilumab) showed no clear difference in short‐term hair regrowth ≥ 75% compared with placebo (low certainty).

1 finding from 1 review

Summary of findings table ‐ Oral small molecule inhibitors (apremilast or baricitinib) vs placebo

Short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of · adults with alopecia areata

Summary of findings table ‐ Oral small molecule inhibitors… leads to higher short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of compared with placebo (high certainty).

1 finding from 1 review

Summary of findings table ‐ Oral small molecule inhibitors (apremilast or baricitinib) vs placebo

Incidence of serious adverse events · adults with alopecia areata

Summary of findings table ‐ Oral small molecule inhibitors… showed no clear difference in incidence of serious adverse events compared with placebo (low certainty).

1 finding from 1 review

Summary of findings table ‐ Oral small molecule inhibitors (apremilast or baricitinib) vs placebo

Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata

Summary of findings table ‐ Oral small molecule inhibitors… leads to higher long‐term hair regrowth ≥ 75% (greater than 26 weeks of compared with placebo (high certainty).

1 finding from 1 review

Summary of findings table ‐ Topical small molecule inhibitors (ruxolitinib) vs placebo

Short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of · adults with alopecia areata

Summary of findings table ‐ Topical small molecule inhibitors… showed no clear difference in short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of compared with placebo (low certainty).

1 finding from 1 review

Summary of findings table ‐ Topical small molecule inhibitors (ruxolitinib) vs placebo

Incidence of serious adverse events · adults with alopecia areata

It is very uncertain whether summary of findings table ‐ Topical small molecule inhibitors… changes incidence of serious adverse events compared with placebo (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs placebo

Short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of · adults with alopecia areata

It is very uncertain whether summary of findings table ‐ Contact immunotherapy (diphencyprone or… changes short‐term hair regrowth ≥ 75% (between 12 and 26 weeks of compared with placebo (very low certainty).

1 finding from 1 review