Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,078 questions · 1,098 findings · 33 reviews · Skin

No studies found 396 · 36.1%GRADE not reported 89 · 8.1%Very low 181 · 16.5%Low 183 · 16.7%Moderate 196 · 17.9%High 53 · 4.8%

Imiquimod 5% cream with tazarotene 0.1% gel vs Imiquimod 5% cream alone

Primary outcome: Histological complete response ( available‐case analysis) No residual LM in staged excision 2 months post‐treatment · participants with melanoma in situ, including lentigo maligna

Imiquimod 5% cream with tazarotene 0.1% gel showed no clear difference in primary outcome: Histological complete response (intention‐to‐treat)… compared with imiquimod 5% cream alone (low certainty).

2 findings from 1 review

Imiquimod 5% cream with tazarotene 0.1% gel vs Imiquimod 5% cream alone

Discontinuation of treatment due to side effects ( · participants with melanoma in situ, including lentigo maligna

Imiquimod 5% cream with tazarotene 0.1% gel showed no clear difference in secondary outcome: Discontinuation of treatment because of harms… compared with imiquimod 5% cream alone (low certainty).

1 finding from 1 review

Imiquimod 5% cream with tazarotene 0.1% gel vs Imiquimod 5% cream alone

Secondary outcome: Inflammatory response (number of lesions with grade 2 or 3) Grade 2 or 3 Inflammation² · participants with melanoma in situ, including lentigo maligna

Imiquimod 5% cream with tazarotene 0.1% gel may leads to higher secondary outcome: Inflammatory response (number of lesions with… compared with imiquimod 5% cream alone (low certainty).

1 finding from 1 review

Radix tripterygium hypoglaucum tablet (THT) vs Tripterygium glucosides tablet (TGT)

Partial response (remarkably effective or effective) · People with erosive oral lichen planus

Radix tripterygium hypoglaucum tablet (THT) led to lower partial response (remarkably effective or effective) compared with tripterygium glucosides tablet (TGT); GRADE not reported.

2 findings from 1 review

Topical clobetasol propionate 0.025% vs clobetasol cream 0.05% cream

Physician Global Assessment (Thongprasom score) · People with erosive oral lichen planus

Topical clobetasol propionate 0.025% showed no clear difference in physician Global Assessment (Thongprasom score) compared with topical clobetasol propionate 0.05%; GRADE not reported.

1 finding from 1 review

Topical ciclosporin 1.5% gel vs Topical clobetasol propionate 0.025% gel

Physician Global Assessment (Thongprasom score) · People with erosive oral lichen planus

Topical ciclosporin 1.5% gel showed no clear difference in physician Global Assessment (Thongprasom score) compared with topical clobetasol propionate 0.025% gel; GRADE not reported.

1 finding from 1 review

Any topical or systemic intervention vs Placebo, no treatment, or another intervention

Outcome not reported · People with erosive anogenital (genital) lichen planus

The review found no eligible studies for this question.

1 finding from 1 review

1% pimecrolimus cream vs Placebo (vehicle cream)

Participant global self-assessment · People with erosive oral lichen planus
1 finding from 1 review
  • One study (Passeron 2007) assessed participant global self-assessment on a 5-point scale: 5/6 participants in the 1% pimecrolimus group rated their improvement as moderate or important versus 1/6 in the placebo group…
    1 study · 12 participants
    GRADE not reported

Any topical or systemic intervention (topical/systemic steroids, ciclosporin, tacrolimus, retinoids, anti-malarials, biologics, phototherapy, surgery) vs Placebo, no treatment, another active intervention, or a different dose of the same intervention

Eating a normally varied diet · People of any age with erosive lichen planus affecting the oral, anogenital, and/or oesophageal regions

The review found no eligible studies for this question.

1 finding from 1 review