Evidence map›Paper›PMID 2157737›Full record

Trial reportJournal of clinical microbiology1990

Clinical studies of a quadrivalent rotavirus vaccine in Venezuelan infants.

I Perez-Schael, M Blanco, M Vilar, D Garcia, L White, R Gonzalez, A Z Kapikian, J Flores

Abstract readClinical TrialRandomized Controlled Trial
In one paragraph

Trial report in Journal of clinical microbiology, 1990. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

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

  1. Rotavirus vaccine for preventing diarrhoea.The Cochrane database of systematic reviews · 2004
    Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Review
  6. Article
  7. Article
  8. Article
  9. Rotavirus vaccines: an overview.Clinical microbiology reviews · 1996
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
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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

8 authors.

I Perez-SchaelInstituto de Biomedicina, Universidad Central de Venezuela, Caracas.
M Blanco
M Vilar
D Garcia
L White
R Gonzalez
A Z Kapikian
J Flores

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phase I studies of an oral quadrivalent rotavirus vaccine were conducted in 130 Venezuelan infants 10 to 20 weeks of age. The vaccine consists of a mixture of equal amounts of rhesus rotavirus (RRV) vaccine (serotype 3 [VP7]) and each of three human rotavirus-RRV reassortant strains: D x RRV (serotype 1 [VP7]), DS1 x RRV (serotype 2 [VP7]), and ST3 x RRV (serotype 4 [VP7]). Three different doses of the quadrivalent vaccine (0.25 x 10(4), 0.5 x 10(4), and 10(4) PFU of each component) were evaluated sequentially for safety and antigenicity in placebo-controlled, double-blind trials. Starting the day after vaccination, the infants were monitored by daily home visits for 7 days. Only minor reactions were observed during this period; these were limited to mild transient febrile episodes which began day 2 or 3 after vaccination and lasted 1 to 2 days in 15 to 30% of the infants. Serological studies demonstrated that 68 to 96% of the infants developed a rotavirus serum immunoglobulin A response following vaccination. However, when tested by plaque reduction neutralization assay against individual human rotavirus serotype 1, 2, 3, or 4, the response rates ranged from 4 to 23% with the low dose, 21 to 33% with the medium dose, and 32 to 58% with the high dose. Most (73 to 79%) infants developed neutralizing antibodies to RRV following administration of each dose schedule. Vaccine virus shedding was analyzed by utilizing tissue culture isolation of virus from stool. All of the infants who received the lower of medium dose and 89% of those fed the high dose shed one or more components of the vaccine. Analyses of rotavirus serotypes isolated from the stool of infants who received the 0.25 x 10(4) -PFU dose revealed that DS1 x RRV was the most commonly shed vaccine component, followed by RRV, D x RRV, and ST3 x RRV in that order.

Indexed as

Administration, OralAntibodies, ViralDouble-Blind MethodDrug EvaluationEnzyme-Linked Immunosorbent AssayFecesFollow-Up StudiesHumansImmunoglobulin AInfantNeutralization TestsRandomized Controlled Trials as TopicRotavirusViral VaccinesAntibodies, ViralImmunoglobulin AViral Vaccines

Identifiers

PMID2157737
PMCPMC269661

What OpenQuestion holds

Textmetadata
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Registered trials

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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.