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Placebo use in vaccine trials: Recommendations of a WHO expert panel

Identifieur interne : 000286 ( Canada/Analysis ); précédent : 000285; suivant : 000287

Placebo use in vaccine trials: Recommendations of a WHO expert panel

Auteurs : Annette Rid [Royaume-Uni] ; Abha Saxena [Suisse] ; Abdhullah H. Baqui [États-Unis] ; Anant Bhan [Canada] ; Julie Bines [Australie] ; Marie-Charlotte Bouesseau [Suisse] ; Arthur Caplan [États-Unis] ; James Colgrove [États-Unis] ; Ames Dhai [Afrique du Sud] ; Rita Gomez-Diaz [Mexique] ; Shane K. Green [Canada] ; GAGANDEEP KANG [Inde] ; Rosanna Lagos [Chili] ; Patricia Loh [Australie] ; Alex John London [États-Unis] ; Kim Mulholland [Royaume-Uni] ; Pieter Neels [Belgique] ; Punee Pitisuttithum [Thaïlande] ; Samba Cor Sarr [Sénégal] ; Michael Selgelid [Australie] ; Mark Sheehan [Royaume-Uni] ; Peter G. Smith [Royaume-Uni]

Source :

RBID : Pascal:14-0208013

Descripteurs français

English descriptors

Abstract

Vaccines are among the most cost-effective interventions against infectious diseases. Many candidate vaccines targeting neglected diseases in low- and middle-income countries are now progressing to large-scale clinical testing. However, controversy surrounds the appropriate design of vaccine trials and, in particular, the use of unvaccinated controls (with or without placebo) when an efficacious vaccine already exists. This paper specifies four situations in which placebo use may be acceptable, provided that the study question cannot be answered in an active-controlled trial design; the risks of delaying or foregoing an efficacious vaccine are mitigated; the risks of using a placebo control are justified by the social and public health value of the research; and the research is responsive to local health needs. The four situations are: (1) developing a locally affordable vaccine, (2) evaluating the local safety and efficacy of an existing vaccine, (3) testing a new vaccine when an existing vaccine is considered inappropriate for local use (e.g. based on epidemiologic or demographic factors), and (4) determining the local burden of disease.


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Pascal:14-0208013

Le document en format XML

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<country>Australie</country>
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<country>États-Unis</country>
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<orgName type="university">Université Carnegie-Mellon</orgName>
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<country>Royaume-Uni</country>
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<settlement type="city">Londres</settlement>
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</inist:fA14>
<country>Thaïlande</country>
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</author>
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<name sortKey="Selgelid, Michael" sort="Selgelid, Michael" uniqKey="Selgelid M" first="Michael" last="Selgelid">Michael Selgelid</name>
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<placeName>
<settlement type="city">Oxford</settlement>
<region type="country">Angleterre</region>
<region type="comté" nuts="2">Oxfordshire</region>
<settlement type="city">Oxford</settlement>
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<orgName type="university">Université d'Oxford</orgName>
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<author>
<name sortKey="Smith, Peter G" sort="Smith, Peter G" uniqKey="Smith P" first="Peter G." last="Smith">Peter G. Smith</name>
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<country>Royaume-Uni</country>
<placeName>
<settlement type="city">Londres</settlement>
<region type="country">Angleterre</region>
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</analytic>
<series>
<title level="j" type="main">Vaccine</title>
<title level="j" type="abbreviated">Vaccine</title>
<idno type="ISSN">0264-410X</idno>
<imprint>
<date when="2014">2014</date>
</imprint>
</series>
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<seriesStmt>
<title level="j" type="main">Vaccine</title>
<title level="j" type="abbreviated">Vaccine</title>
<idno type="ISSN">0264-410X</idno>
</seriesStmt>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>Vaccine</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Vaccin</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr">
<term>Vaccin</term>
</keywords>
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<front>
<div type="abstract" xml:lang="en">Vaccines are among the most cost-effective interventions against infectious diseases. Many candidate vaccines targeting neglected diseases in low- and middle-income countries are now progressing to large-scale clinical testing. However, controversy surrounds the appropriate design of vaccine trials and, in particular, the use of unvaccinated controls (with or without placebo) when an efficacious vaccine already exists. This paper specifies four situations in which placebo use may be acceptable, provided that the study question cannot be answered in an active-controlled trial design; the risks of delaying or foregoing an efficacious vaccine are mitigated; the risks of using a placebo control are justified by the social and public health value of the research; and the research is responsive to local health needs. The four situations are: (1) developing a locally affordable vaccine, (2) evaluating the local safety and efficacy of an existing vaccine, (3) testing a new vaccine when an existing vaccine is considered inappropriate for local use (e.g. based on epidemiologic or demographic factors), and (4) determining the local burden of disease.</div>
</front>
</TEI>
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<li>Australie</li>
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<li>Inde</li>
<li>Mexique</li>
<li>Royaume-Uni</li>
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<li>Sénégal</li>
<li>Thaïlande</li>
<li>États-Unis</li>
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<name sortKey="Dhai, Ames" sort="Dhai, Ames" uniqKey="Dhai A" first="Ames" last="Dhai">Ames Dhai</name>
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<name sortKey="Gagandeep Kang" sort="Gagandeep Kang" uniqKey="Gagandeep Kang" last="Gagandeep Kang">GAGANDEEP KANG</name>
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