SynthesisJornal de pediatria
Comparison between the safety of the HPV vaccine versus placebo: a systematic review and meta-analysis of randomized clinical trials.
Synthesis in Jornal de pediatria. 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.
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
5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Serious adverse events following human papillomavirus vaccination: A systematic review and meta-analysis of post-marketing evidence.Human vaccines & immunotherapeutics · 2026Pooled it
- Post-Marketing Safety Surveillance of Autoimmune Diseases Following Bivalent Human Papillomavirus Vaccination in China.Vaccines · 2026Article
- Survey to Document the Adverse Reactions After Human Papillomavirus Vaccination Among Japanese Female Youth at a University.The journal of obstetrics and gynaecology research · 2026Article
- Innovations in HPV vaccination and their role in global cervical cancer control: a review.Therapeutic advances in vaccines and immunotherapy · 2026Review
- Eruptive Seborrheic Keratoses Following Hpv Vaccination During Ixekizumab Therapy for Psoriasis: A Case Report and Literature Review.Clinical, cosmetic and investigational dermatology · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveHuman Papillomavirus (HPV) is a virus that targets epithelial tissues. Virtually all cases of cervical cancer are related to HPV, emphasizing the importance of vaccines in prevention. Although >200 million doses have been administered worldwide, concerns persist about adverse reactions. This study evaluated the safety of the HPV vaccine and the main adverse effects. DATA SOURCES: The study was registered in the PROSPERO database (CRD42023365692). The systematic searches were conducted in the PubMed, Scopus, Embase, Cochrane, Science Direct, and Web of Science databases using the search strategy "HPV" AND "vaccine" AND "safety" NOT "COVID" from 01/01/2007 to 31/12/2022. Inclusion criteria were based on the PICOT strategy, focusing on studies with humans, vaccinated populations comprising children, adolescents, and adults, and Phase II/III randomized clinical trials. The PEDro scale was used to assess the quality of the studies. SUMMARY OF
findingsEleven articles were qualified for qualitative synthesis and meta-analysis. The results indicated that HPV vaccination was associated with increased local reactions, fatigue, and myalgia compared to the placebo. However, there were no significant differences in serious adverse events, gastrointestinal reactions, cutaneous effects, headache, or fever between the vaccine and placebo groups.
conclusionLocal reactions, fatigue, and myalgia were more prevalent in the HPV vaccine group; the overall safety profile of the vaccine was favorable. The HPV vaccine was deemed safe, mirroring the profile of adverse reactions seen with other vaccines. With its potential to prevent cancer, the benefits of HPV vaccination far outweigh the minimal risks.
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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.