Evidence map›Paper›PMID 21703321›Full record

ArticleVaccine2011

The potential impact of RV144-like vaccines in rural South Africa: a study using the STDSIM microsimulation model.

Jan A C Hontelez, Nico Nagelkerke, Till Bärnighausen, Roel Bakker, Frank Tanser, Marie-Louise Newell, Mark N Lurie, Rob Baltussen, Sake J de Vlas

Abstract read
In one paragraph

Article in Vaccine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 4 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

25 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Evidence Gaps in Economic Evaluations of HIV Interventions Targeting Young People: A Systematic Review.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2024
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  19. Human immunodeficiency virus vaccines.Infectious disease clinics of North America · 2014
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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

9 authors.

Jan A C HontelezDepartment of Public Health, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, Netherlands. j.hontelez@erasmusmc.nl
Nico Nagelkerke
Till Bärnighausen
Roel Bakker
Frank Tanser
Marie-Louise Newell
Mark N Lurie
Rob Baltussen
Sake J de Vlas

Funding

Impact of Antiretroviral Therapy on HIV Epidemic DynamicsR01MH083539 · NIMH · BROWN UNIVERSITY · PI LURIE, MARK NATHAN · 2009 to 2012
$2.2M
NIMH NIH HHS R01 MH083539
6 · The paper itself

Abstract

backgroundThe only successful HIV vaccine trial to date is the RV144 trial of the ALVAC/AIDSVAX vaccine in Thailand, which showed an overall incidence reduction of 31%. Most cases were prevented in the first year, suggesting a rapidly waning efficacy. Here, we predict the population level impact and cost-effectiveness of practical implementation of such a vaccine in a setting of a generalised epidemic with high HIV prevalence and incidence.

methodsWe used STDSIM, an established individual-based microsimulation model, tailored to a rural South African area with a well-functioning HIV treatment and care programme. We estimated the impact of a single round of mass vaccination for everybody aged 15-49, as well as 5-year and 2-year re-vaccination strategies for young adults (aged 15-29). We calculated proportion of new infections prevented, cost-effectiveness indicators, and budget impact estimates of combined ART and vaccination programmes.

resultsA single round of mass vaccination with a RV144-like vaccine will have a limited impact, preventing only 9% or 5% of new infections after 10 years at 60% and 30% coverage levels, respectively. Revaccination strategies are highly cost-effective if vaccine prices can be kept below 150 US$/vaccine for 2-year revaccination strategies, and below 200 US$/vaccine for 5-year revaccination strategies. Net cost-savings through reduced need for HIV treatment and care occur when vaccine prices are kept below 75 US$/vaccine. These results are sensitive to alternative assumptions on the underlying sexual network, background prevention interventions, and individual's propensity and consistency to participate in the vaccination campaign. DISCUSSION: A modestly effective vaccine can be a cost-effective intervention in highly endemic settings. To predict the impact of vaccination strategies in other endemic situations, sufficient knowledge of the underlying sexual network, prevention and treatment interventions, and individual propensity and consistency to participate, is key. These issues are all best addressed in an individual-based microsimulation model.

Indexed as

Models, TheoreticalAdolescentAdultAIDS VaccinesClinical Trials as TopicComputer SimulationCost-Benefit AnalysisFemaleHIVHIV InfectionsHumansImmunization ProgramsImmunization, SecondaryIncidenceMaleMass VaccinationAIDS VaccinesAIDSVAX

Identifiers

PMID21703321
PMCPMC3157643

What OpenQuestion holds

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Registered trials

None linked

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.