title: [New applications for individual participant data meta-analyses of randomized trials].
abstract: Meta-analyses of randomized trials using individual-participant data, which represent the highest level of evidence for the evaluation of a treatment effect, are now used in different contexts in clinical research. This article aims at reviewing some of these new applications. Meta-analyses are increasingly used in economic evaluation, which implies new measure outcomes of the treatment effect, as well as in biomarkers evaluations thanks to their higher statistical power and the possibility to validate findings on independent data. This article also considers the perspectives opened up by new data sources, such as randomized trials registers, and data sharing policies.
authors.affiliation: Gustave-Roussy, université Paris-Saclay, service de biostatistique et d'épidémiologie, 94805 Villejuif, France; Oncostat CESP, INSERM, université Paris-Saclay, university Paris-Sud, UVSQ, 94085 Villejuif, France; Gustave-Roussy, plateforme Ligue nationale contre le cancer de méta-analyse en oncologie, 94085 Villejuif, France.
authors.forename: Béranger
authors.initials: B
authors.lastname: Lueza
authors.affiliation: Gustave-Roussy, université Paris-Saclay, service de biostatistique et d'épidémiologie, 94805 Villejuif, France; Oncostat CESP, INSERM, université Paris-Saclay, university Paris-Sud, UVSQ, 94085 Villejuif, France; Gustave-Roussy, plateforme Ligue nationale contre le cancer de méta-analyse en oncologie, 94085 Villejuif, France.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Lacas
authors.affiliation: Gustave-Roussy, université Paris-Saclay, service de biostatistique et d'épidémiologie, 94805 Villejuif, France; Oncostat CESP, INSERM, université Paris-Saclay, university Paris-Sud, UVSQ, 94085 Villejuif, France; Gustave-Roussy, plateforme Ligue nationale contre le cancer de méta-analyse en oncologie, 94085 Villejuif, France.
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Pignon
authors.affiliation: Gustave-Roussy, université Paris-Saclay, service de biostatistique et d'épidémiologie, 94805 Villejuif, France; Oncostat CESP, INSERM, université Paris-Saclay, university Paris-Sud, UVSQ, 94085 Villejuif, France; Gustave-Roussy, plateforme Ligue nationale contre le cancer de méta-analyse en oncologie, 94085 Villejuif, France. Electronic address: xavier.paoletti@gustaveroussy.fr.
authors.forename: Xavier
authors.initials: X
authors.lastname: Paoletti
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis*; D035843:Biomedical Research; D003362:Cost-Benefit Analysis; D016208:Databases, Factual; D006801:Humans; D033181:Information Dissemination; D053208:Kaplan-Meier Estimate; D008017:Life Expectancy; D015201:Meta-Analysis as Topic; D011379:Prognosis; D016032:Randomized Controlled Trials as Topic; D012042:Registries
chemical_list: D014408:Biomarkers, Tumor
keywords: Biomarkers; Biomarqueurs; Bénéfice de survie; Data sharing; Data-sharing; Economic evaluation; Essai randomisé; Meta-analysis; Méta-analyse; Randomized trials; Survival benefit; Évaluation médico-économique