Trial reportThe Journal of infectious diseases2012
Safety and immune responses in children after concurrent or sequential 2009 H1N1 and 2009-2010 seasonal trivalent influenza vaccinations.
Trial report in The Journal of infectious diseases, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00943202 (Effect of Administration of Licensed TIV Vaccine on the Safety and Immunogenicity of an Unadjuvanted Sanofi Pasteur H1N1 Influenza Vaccine in Previously Primed Infants and Toddlers), which is not on this map. Cited by 7 papers.
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.
Effect of Administration of Licensed TIV Vaccine on the Safety and Immunogenicity of an Unadjuvanted Sanofi Pasteur H1N1 Influenza Vaccine in Previously Primed Infants and Toddlers (Greater Than or Equal to 6 - <36 Months), Children (Greater Than or Equal to 36 Months - 9 Years), and Adolescents (10 - 17 Years)
Who cites it
7 citing papers in PubMed, 12 citations in OpenAlex.
- Trial
- Clinical and immune responses to inactivated influenza A(H1N1)pdm09 vaccine in children.The Pediatric infectious disease journal · 2014Trial
- Future Goals and Long-term Vision of the Infectious Diseases Clinical Research Consortium/Vaccine and Treatment Evaluation Unit Network.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025Article
- Emerging and Pandemic Pathogens: Lessons Learned From a Clinical Research Network.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025Review
- Effectiveness of Partial and Full Influenza Vaccination Among Children Aged <9 Years in Hong Kong, 2011-2019.The Journal of infectious diseases · 2019Article
- Standard trivalent influenza virus protein vaccination does not prime antibody-dependent cellular cytotoxicity in macaques.Journal of virology · 2013Article
- Differential localization and function of antibody-forming cells responsive to inactivated or live-attenuated influenza virus vaccines.International immunology · 2013Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors at 8 institutions in 1 country.
Funding
Abstract
backgroundAdministering 2 separate vaccines for seasonal and pandemic influenza was necessary in 2009. Therefore, we conducted a randomized trial of monovalent 2009 H1N1 influenza vaccine (2009 H1N1 vaccine) and seasonal trivalent inactivated influenza vaccine (TIV; split virion) given sequentially or concurrently in previously vaccinated children.
methodsChildren randomized to 4 study groups and stratified by age received 1 dose of seasonal TIV and 2 doses of 2009 H1N1 vaccine in 1 of 4 combinations. Injections were given at 21-day intervals and serum samples for hemagglutination inhibition antibody responses were obtained prior to and 21 days after each vaccination. Reactogenicity and adverse events were monitored.
resultsAll combinations of vaccines were safe in the 531 children enrolled. Generally, 1 dose of 2009 H1N1 vaccine and 1 dose of TIV, regardless of sequence or concurrency of administration, was immunogenic in children ≥ 10 years of age; children <10 years of age required 2 doses of 2009 H1N1 vaccine.
conclusionsVaccines were generally well tolerated. The immune responses to 2009 H1N1 vaccine were adequate regardless of the sequence of vaccination in all age groups but the sequence affected titers to TIV antigens. Two doses of 2009 H1N1 vaccine were required to achieve a protective immune response in children <10 years of age. CLINICAL TRIALS REGISTRATION: NCT00943202.
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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.