Trial reportEmerging microbes & infections2023
Safety of hepatitis E vaccination for pregnancy: a post-hoc analysis of a randomized, double-blind, controlled phase 3 clinical trial.
Trial report in Emerging microbes & infections, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
What it found
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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
15 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.
- Human papillomavirus (HPV) vaccination for the prevention of cervical cancer and other HPV-related diseases: a network meta-analysis.The Cochrane database of systematic reviews · 2025Pooled it
- Trial
- Cost-effectiveness analysis of hepatitis E screening and vaccination: targeting vulnerable populations in outbreak and sporadic settings in China.Emerging microbes & infections · 2026Article
- Hepatitis E Virus Infection in Pregnant Women.Microorganisms · 2026Review
- Clinical Guidelines for Hepatitis E Vaccination in India: An Expert Panel Consensus Report on the Recombinant Hepatitis E Vaccine, HEV 239.Pathogens (Basel, Switzerland) · 2026Review
- Safety of hepatitis E vaccine in pregnancy.Virology journal · 2026Article
- Hepatitis Vaccines: Recent Advances and Challenges.Vaccines · 2025Review
- Differential miRNA signatures in Hepatitis E Virus Infection: Insights into acute, chronic, and pregnancy-related outcomes.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025Review
- Evaluating the Efficacy and Safety of Hepatitis E Vaccination in Reproductive-Age Women: A Systematic Review and Meta-Analysis.Vaccines · 2025Review
- Cell binding tropism of rat hepatitis E virus is a pivotal determinant of its zoonotic transmission to humans.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Safety of hepatitis E vaccine in pregnancy: an emulated target trial following a mass reactive vaccination campaign in Bentiu internally displaced persons camp, South Sudan.The Lancet. Global health · 2024Article
- Water-Based Epidemiological Investigation of Hepatitis E Virus in South Africa.Food and environmental virology · 2024Article
- Review
- Viral hepatitis E: Clinical manifestations, treatment, and prevention.Liver research (Beijing, China) · 2024Review
- Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
19 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Special attention has been paid to Hepatitis E (HE) prophylaxis for pregnant women due to poor prognosis of HE in this population. We conducted a post-hoc analysis based on the randomized, double-blind, HE vaccine (Hecolin)-controlled phase 3 clinical trial of human papillomavirus (HPV) vaccine (Cecolin) conducted in China. Eligible healthy women aged 18-45 years were randomly assigned to receive three doses of Cecolin or Hecolin and were followed up for 66 months. All the pregnancy-related events throughout the study period were closely followed up. The incidences of adverse events, pregnancy complications, and adverse pregnancy outcomes were analysed based on the vaccine group, maternal age, and interval between vaccination and pregnancy onset. During the study period, 1263 Hecolin receivers and 1260 Cecolin receivers reported 1684 and 1660 pregnancies, respectively. The participants in the two vaccine groups showed similar maternal and neonatal safety profiles, regardless of maternal age. Among the 140 women who were inadvertently vaccinated during pregnancy, the incidences of adverse reactions had no statistical difference between the two groups (31.8% vs 35.1%,
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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.