2023
A framework for the definition and interpretation of the use of surrogate endpoints in interventional trials
Ciani O, Manyara A, Davies P, Stewart D, Weir C, Young A, Blazeby J, Butcher N, Bujkiewicz S, Chan A, Dawoud D, Offringa M, Ouwens M, Hróbjartssson A, Amstutz A, Bertolaccini L, Bruno V, Devane D, Faria C, Gilbert P, Harris R, Lassere M, Marinelli L, Markham S, Powers J, Rezaei Y, Richert L, Schwendicke F, Tereshchenko L, Thoma A, Turan A, Worrall A, Christensen R, Collins G, Ross J, Taylor R. A framework for the definition and interpretation of the use of surrogate endpoints in interventional trials. EClinicalMedicine 2023, 65: 102283. PMID: 37877001, PMCID: PMC10590868, DOI: 10.1016/j.eclinm.2023.102283.Peer-Reviewed Original ResearchSurrogate endpointsInterventional trialsIntermediate outcomesHealth technology assessment expertsPrimary outcome measureMeasures of functionTreatment effectsE-Delphi studyOutcome measuresConsensus meetingBetter HealthTarget outcomesTrialsEndpointLack of consensusOutcomesPatientsFuture reportingCurrent definitionUrgent needSymptomsCliniciansSettingBiomarkers
2016
Characterisation of trials where marketing purposes have been influential in study design: a descriptive study
Barbour V, Burch D, Godlee F, Heneghan C, Lehman R, Perera R, Ross JS, Schroter S. Characterisation of trials where marketing purposes have been influential in study design: a descriptive study. Trials 2016, 17: 31. PMID: 26792624, PMCID: PMC4720997, DOI: 10.1186/s13063-015-1107-1.Peer-Reviewed Original ResearchConceptsMedian numberDrug trialsGeneral medical journalsComposite primary outcome measureStudy designTerms of blindingPrimary outcome measureTrials of drugsHigh-impact general medical journalsKey trial characteristicsIndustry-funded trialsMedical journalsAdverse eventsCategories of trialsTrial characteristicsOutcome measuresStudy populationSafety outcomesBlinded researcherStudy characteristicsDescriptive studyTrial documentationTrialsSignificant differencesMarketing trials