Trial reportBMC medical research methodology2018
Human papillomavirus infection: protocol for a randomised controlled trial of imiquimod cream (5%) versus podophyllotoxin cream (0.15%), in combination with quadrivalent human papillomavirus or control vaccination in the treatment and prevention of recurrence of anogenital warts (HIPvac trial).
Trial report in BMC medical research methodology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 28 citations in OpenAlex.
- The Effects of Podophyllotoxin Derivatives on Noncancerous Diseases: A Systematic Review.International journal of molecular sciences · 2025Pooled it
- Clinical guideline for the diagnosis and treatment of cutaneous warts (2022).Journal of evidence-based medicine · 2022Guideline
- Intralesional bivalent and quadrivalent human papillomavirus vaccines didn't significantly enhance the response of multiple anogenital warts when co-administered with intralesional Candida antigen immunotherapy. A randomized controlled trial.Archives of dermatological research · 2023Trial
- Imiquimod versus podophyllotoxin, with and without human papillomavirus vaccine, for anogenital warts: the HIPvac factorial RCT.Health technology assessment (Winchester, England) · 2020Trial
- Role of hyperthermia in overcoming HPV‑mediated MHC‑Ⅰ downregulation and promoting immune surveillance.International journal of molecular medicine · 2026Article
- HPV16 E2 protein possesses intrinsic helicase activity and sterically hinders E1 function through direct interaction.The Journal of biological chemistry · 2026Article
- Guidance for protocol content and reporting of factorial randomised trials: explanation and elaboration of the CONSORT 2010 and SPIRIT 2013 extensions.BMJ (Clinical research ed.) · 2025Article
- In-silico study unveils potential phytocompounds in Andrographis paniculata against E6 protein of the high-risk HPV-16 subtype for cervical cancer therapy.Scientific reports · 2024Article
- Current Infections of the Orofacial Region: Treatment, Diagnosis, and Epidemiology.Life (Basel, Switzerland) · 2023Review
- Chemistry and Biological Activities of Naturally Occurring and Structurally Modified Podophyllotoxins.Molecules (Basel, Switzerland) · 2022Review
- Exploiting viral sensing mediated by Toll-like receptors to design innovative vaccines.NPJ vaccines · 2021Review
- Review
- Recurrent respiratory papillomatosis: A 2020 perspective.Laryngoscope investigative otolaryngology · 2021Review
- Case Report: Intra-Tumoral Vaccinations of Quadrivalent HPV-L1 Peptide Vaccine With Topical TLR-7 Agonist Following Recurrence: Complete Resolution of HPV-HR-Associated Gynecologic Squamous Cell Carcinomas in Two Patients.Pathology oncology research : POR · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors at 5 institutions in 1 country.
Funding
Abstract
backgroundAnogenital warts are the second most common sexually transmitted infection diagnosed in sexual health services in England. About 90% of genital warts are caused by human papillomavirus (HPV) types 6 or 11, and half of episodes diagnosed are recurrences. The best and most cost-effective treatment for patients with anogenital warts is unknown. The commonly used treatments are self-administered topical agents, podophyllotoxin (0.15% cream) or imiquimod (5% cream), or cryotherapy with liquid nitrogen. Quadrivalent HPV (qHPV) vaccination is effective in preventing infection, and disease, but whether it has any therapeutic effect is not known. METHODS AND
designTo investigate the efficacy of clearance and prevention of recurrence of external anogenital warts by topical treatments, podophyllotoxin 0.15% cream or imiquimod 5% cream, in combination with a three-dose regimen of qHPV or control vaccination. 500 adult patients presenting with external anogenital warts with either a first or subsequent episode of anogenital warts will be entered into this randomised, controlled partially blinded 2 × 2 factorial trial. DISCUSSION: The trial is expected to provide the first high-quality evidence of the comparative efficacy and cost-effectiveness of the two topical treatments in current use, as well as investigate the potential benefit of HPV vaccination, in the management of anogenital warts.
trial registrationThe trial was registered prior to starting recruitment under the following reference numbers: International Standard Randomized Controlled Trial Number (ISRCTN) Registry - ISRCTN32729817 (registered 25 July 2014); European Union Clinical Trials Register (EudraCT) - 2013-002951-14 (registered 26 June 2013).
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.