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Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

1,886 questions in 74 reviews · Skin

current versions
No studies 542 · 28.7%Ungraded 130 · 6.9%Very low 326 · 17.3%Low 434 · 23%Moderate 348 · 18.5%High 106 · 5.6%

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.

QuestionEffectEvidenceStatus / GRADE
Topical ciclosporin 1.5% gel vs Topical clobetasol propionate 0.025% gel
Partial response (partial or complete response) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
RR 1.46 [1.04, 2.04]1 study · 40 participantsUngraded
1% pimecrolimus cream vs Placebo (vehicle cream)
Relapse rate when medications stopped · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
In Passeron 2007 (n=12), all participants who improved during treatment relapsed within 1 month of ceasing treatment.1 study · 12 participantsUngraded
Radix tripterygium hypoglaucum tablet (THT) vs Tripterygium glucosides tablet (TGT)
Physician Global Assessment (cure of erosive lesions, remarkably effective) · People with erosive oral lichen planus · Grade II (erosive lesions only)
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
RR 0.73 [0.42, 1.28]1 study · 94 participantsUngraded
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
Reduction in number of flares · People of any age with erosive lichen planus affecting the oral, anogenital, and/or oesophageal regions
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
No studies reported this outcome.0 studiesNo studies
Clobetasol propionate ointment 0.05% vs 5% topical mesalazine gel in adhesive base
Pain reduction (VAS 0-10) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
MD -0.83 [-4.12, 2.46]1 study · 12 participantsUngraded
1% pimecrolimus cream vs Placebo (vehicle cream)
Physician Global Assessment (weighted sums of ulceration, erythema, reticulation, mm2) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
MD -56.57 [-134.02, 20.88]1 study · 20 participantsUngraded
Topical ciclosporin 1.5% gel vs Topical clobetasol propionate 0.025% gel
Side-effects reported · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
Table 3 (Side-effects). Conrotto 2006: ciclosporin - skin rashes (2), parotid swelling (1), and dyspepsia (3); clobetasol - dyspepsia (1).1 study · 40 participantsUngraded
Any topical or systemic intervention vs Placebo, no treatment, or another intervention
Outcome NR · People with erosive oesophageal lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
None of the studies involved oesophageal disease; hence, no evidence was found for the treatment of oesophageal ELP.0 studiesNo studies
Aloe vera gel vs Placebo
Physician Global Assessment (Thongprasom score) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
RR 2.64 [0.11, 61.54]1 study · 45 participantsUngraded
Aloe vera gel vs Placebo
Partial response (>=50% clinical improvement) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
RR 19.25 [2.83, 130.85]1 study · 45 participantsUngraded
Intervention NR
Any systemic reaction to an insect sting · adults and children with a previous allergic reaction to an insect sting
Venom immunotherapy for preventing allergic reactions to insect stings (2012) · Cochrane
RR 0.1 [0.03, 0.28]7 studies · 206 participantsHigh
Intervention NR
Large local reaction · adults and children with a previous allergic reaction to an insect sting
Venom immunotherapy for preventing allergic reactions to insect stings (2012) · Cochrane
RR 0.41 [0.24, 0.69]5 studies · 112 participantsModerate
Intervention NR
Vespid Quality of Life Questionnaire ‐ end of treatment Scale from 0 to 7, where a higher score indicates less quality of life impairment. · adults and children with a previous allergic reaction to an insect sting
Venom immunotherapy for preventing allergic reactions to insect stings (2012) · Cochrane
no estimate extracted2 studies · 112 participantsModerate
Intervention NR
Any systemic reaction to treatment · adults and children with a previous allergic reaction to an insect sting
Venom immunotherapy for preventing allergic reactions to insect stings (2012) · Cochrane
RR 8.16 [1.53, 43.46]6 studies · 285 participantsModerate
Aloe vera gel vs Placebo
Side-effects reported · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
Table 3 (Side-effects). Choonhakarn 2008: no serious side-effects; 2 participants receiving aloe vera gel reported stinging and mild itching at lesions within the first week, symptoms spontaneously disappeared with…1 study · 45 participantsUngraded
Betamethasone oral mini-pulse therapy vs Topical triamcinolone acetonide 0.1% paste
Physician Global Assessment (clinical severity, 0-12 score) · People with erosive oral lichen planus · 24 weeks
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
MD 1.78 [0.17, 3.39]1 study · 22 participantsUngraded
Fluticasone propionate spray vs Betamethasone sodium phosphate mouthwash
Side-effects reported · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
Table 3 (Side-effects). Hegarty 2002: nausea (4), swollen mouth (1), bad taste and smell (6), difficulty in spray application (7), dry mouth (2), sore throat (1), red painful tongue (1), and pseudomembranous…1 study · 44 participantsUngraded
Radix tripterygium hypoglaucum tablet (THT) vs Tripterygium glucosides tablet (TGT)
Partial response (remarkably effective or effective) · People with erosive oral lichen planus · Grade II (erosive lesions only)
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
RR 0.29 [0.07, 1.27]1 study · 94 participantsUngraded
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
Reduction in severity of flares · People of any age with erosive lichen planus affecting the oral, anogenital, and/or oesophageal regions
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
No studies reported this outcome.0 studiesNo studies
Clobetasol-17-propionate 0.025% lipid-loaded microspheres vs Conventional 0.025% clobetasol lipophilic ointment in hydrophilic phase
Physician Global Assessment (Thongprasom score) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
MD 0.00 [-0.61, 0.61]1 study · 45 participantsUngraded
1% pimecrolimus cream vs Placebo (vehicle cream)
Pain reduction (VAS) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
MD -3.30 [-20.22, 13.62]2 studies · 32 participantsUngraded
Topical ciclosporin 1.5% gel vs Topical clobetasol propionate 0.025% gel
Pain (>=50% improvement in symptoms) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
RR 0.47 [0.17, 1.32]1 study · 40 participantsUngraded
Radix tripterygium hypoglaucum tablet (THT) vs Tripterygium glucosides tablet (TGT)
Side-effects reported · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
Table 3 (Side-effects). Lin 2005: TGT - menstrual disturbance (6) and leucopenia (1). Tripterygium glucosides are known to be cytotoxic and unsuitable for individuals of child-bearing age.1 study · 94 participantsUngraded
Ciclosporin rinse vs Placebo (vehicle)
Side-effects reported · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
Table 3 (Side-effects). Eisen 1990: no adverse side-effects; transient burning sensation of mucosal surfaces during swishing of medication reported in all participants.1 study · 8 participantsUngraded
0.1% triamcinolone acetonide in orabase vs Ciclosporin solution
Side-effects reported · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
Table 3 (Side-effects). Yoke 2006: no significant adverse events; transient burning sensation upon initial application with both treatments.1 study · 15 participantsUngraded
Ciclosporin rinse vs Placebo (vehicle)
Physician Global Assessment (severity of disease) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
MD -1.40 [-1.86, -0.94]1 study · 8 participantsUngraded
Fluocinonide in adhesive base vs Placebo
Partial response (>33% improvement) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
RR 3.00 [0.62, 14.62]1 study · 27 participantsUngraded
Clobetasol propionate ointment 0.05% vs 5% topical mesalazine gel in adhesive base
Side-effects reported · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
Table 3 (Side-effects). Sardella 1998: no side-effects (there were no reported side-effects with topical mesalazine gel).1 study · 12 participantsUngraded
Aloe vera gel vs Placebo
Pain (>=50% improvement in symptoms) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
RR 6.16 [2.35, 16.13]1 study · 45 participantsUngraded
Ciclosporin rinse vs Placebo (vehicle)
Pain reduction (participant-reported symptoms) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
We were unable to extract data on participant-reported symptoms for Eisen 1990 because there was no breakdown of data for the ELP subgroup.1 study · 8 participantsUngraded
Topical clobetasol propionate 0.025% vs Topical clobetasol propionate 0.05%
Partial response (partial or complete response) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
RR 1.18 [0.82, 1.70]1 study · 35 participantsUngraded
Topical tacrolimus 0.1% ointment vs Topical clobetasol propionate 0.05% ointment
Reduction in target/mean lesion size · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
MD 0.00 [-1.09, 1.10]1 study · 29 participantsUngraded
Fluocinonide in adhesive base vs Placebo
Side-effects reported · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
Table 3 (Side-effects). Voute 1993: no side-effects during the study and follow-up period.1 study · 27 participantsUngraded
Radix tripterygium hypoglaucum tablet (THT) vs Tripterygium glucosides tablet (TGT)
Physician Global Assessment (cure of erosive lesions, remarkably effective) · People with erosive oral lichen planus · Grade I (erosive and ulcerative lesions)
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
RR 0.55 [0.25, 1.20]1 study · 94 participantsUngraded
Topical clobetasol propionate 0.025% vs Topical clobetasol propionate 0.05%
Side-effects reported · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
Table 3 (Side-effects). Carbone 2009: no side-effects.1 study · 35 participantsUngraded
Clobetasol-17-propionate 0.025% lipid-loaded microspheres vs Conventional 0.025% clobetasol lipophilic ointment in hydrophilic phase
Pain reduction (VAS 0-100) · People with erosive oral lichen planus
Interventions for erosive lichen planus affecting mucosal sites (2012) · Cochrane
MD -18.30 [-28.57, -8.03]1 study · 45 participantsUngraded