Evidence map›Paper›PMID 40387973›Full record

SynthesisCurrent oncology reports2025

Imiquimod for Anal High Grade Intraepithelial Neoplasia: A Systematic Review.

Niccolò Gallio, Mario Preti, Elena Casetta, Andreia Albuquerque, Pedro Vieira-Baptista, Fulvio Borella, Federica Bevilacqua, Camilla Cavallero, Massimiliano Mistrangelo, Alberto Revelli

Abstract readSystematic Review
In one paragraph

Synthesis in Current oncology reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Short-term efficacy and safety of COFrontiers in medicine · 2026
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Niccolò GallioObstetrics and Gynecology Unit 2, Department of Surgical Sciences, "City of Health and Science University Hospital", S. Anna Hospital, University of Turin, Via Ventimiglia, 3 10126, Turin, Italy. niccolo.gallio@edu.unito.it.
Mario PretiObstetrics and Gynecology Unit 1, Department of Surgical Sciences, Sant' Anna Hospital, University of Torino, Turin, Italy.
Elena CasettaObstetrics and Gynecology Unit 2, Department of Surgical Sciences, "City of Health and Science University Hospital", S. Anna Hospital, University of Turin, Via Ventimiglia, 3 10126, Turin, Italy.
Andreia AlbuquerqueGastroenterology Department, Fernando Pessoa Teaching Hospital, Porto, Portugal.
Pedro Vieira-BaptistaDepartment of Gynecology-Obstetrics and Pediatrics, Faculdade de Medicina da Universidade Do Porto, Porto, Portugal.
Fulvio BorellaObstetrics and Gynecology Unit 1, Department of Surgical Sciences, Sant' Anna Hospital, University of Torino, Turin, Italy.
Federica BevilacquaObstetrics and Gynecology Unit 1, Department of Surgical Sciences, Sant' Anna Hospital, University of Torino, Turin, Italy.
Camilla CavalleroObstetrics and Gynecology Unit 1, Department of Surgical Sciences, Sant' Anna Hospital, University of Torino, Turin, Italy.
Massimiliano MistrangeloSurgical Sciences Department, University of Torino, Città Della Salute E Della Scienza Di Torino, Turin, Italy.
Alberto RevelliObstetrics and Gynecology Unit 2, Department of Surgical Sciences, "City of Health and Science University Hospital", S. Anna Hospital, University of Turin, Via Ventimiglia, 3 10126, Turin, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThis study aimed to investigate the efficacy of imiquimod in Anal High Grade Squamous Intraepithelial Lesion (HSIL).

methodsElectronic databases (Pubmed, MEDLINE, EMBASE and Cochrane Library databases) were searched from inception until December 2024 for articles reporting imiquimod as a treatment for anal HSIL.

resultsFive studies were identified (2 randomized controlled trials and 3 prospective non-randomized studies), containing data on 126 men of have sex with men living with HIV with anal HSIL. Most studies contained significant bias which prevented direct comparison. Reported complete response (CR) rates ranged between 14.3-78.6%, and 21.4-67% partial response (PR) rates of 3-weekly application for 16 weeks imiquimod course. A second course of imiquimod led to incremental response (CR 15-23.8%, PR 19-30%). Perianal HSIL showed superior response rates compared to intra-anal lesions (perianal HSIL CR ranging from 71.4 to 100%, intra-anal HSIL CR from 10.8 to 33.3%). DISCUSSION: In our systematic review we summarized the literature regarding imiquimod use for anal HSIL treatment, both perianal/intra-anal. Imiquimod can be proposed as a safe treatment of anal HSIL, and perianal HSIL may benefit more from imiquimod treatment. However, anal HSIL recurrence rates were high, and there are no long-term data on its efficacy. No studies investigated the role of imiquimod in women or in HIV- patients.

conclusionImiquimod can be proposed as a safe option for treatment of anal HSIL.

Indexed as

Antineoplastic AgentsAnus NeoplasmsCarcinoma in SituImiquimodSquamous Intraepithelial LesionsHumansMaleAntineoplastic AgentsImiquimodAnal HSILAnal Intraepithelial NeoplasiaHPV lesionImiquimodIntra-anal HSILPerianal HSILTopical therapy

Identifiers

PMID40387973
PMCPMC12328541

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.